tests/unit/test_assets_use_cases.py

@@ -0,0 +1,197 @@
+"""Assets UseCase 单元测试."""
+
+from __future__ import annotations
+
+from unittest.mock import MagicMock
+
+import pytest
+
+from packages.application.assets import (
+    CreateAssetCommand,
+    CreateAssetUseCase,
+    ListAssetsUseCase,
+)
+from packages.domain import Asset, AssetStatus, ClassificationStatus
+
+
+@pytest.fixture
+def mock_asset_repo():
+    return MagicMock()
+
+
+@pytest.fixture
+def sample_asset():
+    asset = Asset.create(
+        project_id="proj_001",
+        library_id="lib_001",
+        name="test_video.mp4",
+        storage_key="videos/test.mp4",
+        mime_type="video/mp4",
+        file_size=1024000,
+        duration=15.5,
+        width=1920,
+        height=1080,
+    )
+    asset.id = "asset_001"
+    return asset
+
+
+class TestListAssetsUseCase:
+    """ListAssetsUseCase 测试"""
+
+    def test_list_returns_repo_results(self, mock_asset_repo, sample_asset):
+        """正常返回 repository 的查询结果"""
+        mock_asset_repo.find_by_library.return_value = [sample_asset]
+        use_case = ListAssetsUseCase(mock_asset_repo)
+
+        result = use_case.execute("lib_001")
+
+        assert len(result) == 1
+        assert result[0].id == "asset_001"
+        mock_asset_repo.find_by_library.assert_called_once_with("lib_001")
+
+    def test_empty_library_id_raises_value_error(self, mock_asset_repo):
+        """空 library_id 抛出 ValueError"""
+        use_case = ListAssetsUseCase(mock_asset_repo)
+
+        with pytest.raises(ValueError, match="library_id 不能为空"):
+            use_case.execute("")
+
+        mock_asset_repo.find_by_library.assert_not_called()
+
+    def test_whitespace_library_id_raises_value_error(self, mock_asset_repo):
+        """纯空格 library_id 抛出 ValueError"""
+        use_case = ListAssetsUseCase(mock_asset_repo)
+
+        with pytest.raises(ValueError, match="library_id 不能为空"):
+            use_case.execute("   ")
+
+        mock_asset_repo.find_by_library.assert_not_called()
+
+    def test_library_id_stripped_before_query(self, mock_asset_repo, sample_asset):
+        """library_id 会被 strip 后再查询"""
+        mock_asset_repo.find_by_library.return_value = [sample_asset]
+        use_case = ListAssetsUseCase(mock_asset_repo)
+
+        use_case.execute("  lib_001  ")
+
+        mock_asset_repo.find_by_library.assert_called_once_with("lib_001")
+
+    def test_empty_list(self, mock_asset_repo):
+        """素材库为空时返回空列表"""
+        mock_asset_repo.find_by_library.return_value = []
+        use_case = ListAssetsUseCase(mock_asset_repo)
+
+        result = use_case.execute("lib_001")
+
+        assert result == []
+        mock_asset_repo.find_by_library.assert_called_once_with("lib_001")
+
+
+class TestCreateAssetUseCase:
+    """CreateAssetUseCase 测试"""
+
+    def test_create_asset_success(self, mock_asset_repo):
+        """正常创建素材"""
+        mock_asset_repo.create.side_effect = lambda a: a
+        use_case = CreateAssetUseCase(mock_asset_repo)
+
+        command = CreateAssetCommand(
+            project_id="proj_001",
+            library_id="lib_001",
+            name="test.png",
+            storage_key="images/test.png",
+            mime_type="image/png",
+            file_size=512000,
+        )
+        result = use_case.execute(command)
+
+        assert result.name == "test.png"
+        assert result.library_id == "lib_001"
+        assert result.mime_type == "image/png"
+        assert result.status == AssetStatus.UPLOADING
+        assert result.classification_status == ClassificationStatus.PENDING
+        mock_asset_repo.create.assert_called_once()
+
+    def test_create_asset_with_metadata(self, mock_asset_repo):
+        """创建带 metadata 的素材"""
+        mock_asset_repo.create.side_effect = lambda a: a
+        use_case = CreateAssetUseCase(mock_asset_repo)
+
+        command = CreateAssetCommand(
+            project_id="proj_001",
+            library_id="lib_001",
+            name="test.mp3",
+            storage_key="audio/test.mp3",
+            mime_type="audio/mpeg",
+            metadata={"bitrate": 320, "sample_rate": 44100},
+            duration=180.0,
+        )
+        result = use_case.execute(command)
+
+        assert result.metadata["bitrate"] == 320
+        assert result.duration == 180.0
+
+    def test_create_asset_with_quality_score(self, mock_asset_repo):
+        """创建带质量分的素材"""
+        mock_asset_repo.create.side_effect = lambda a: a
+        use_case = CreateAssetUseCase(mock_asset_repo)
+
+        command = CreateAssetCommand(
+            project_id="proj_001",
+            library_id="lib_001",
+            name="high_quality.mp4",
+            storage_key="videos/hq.mp4",
+            mime_type="video/mp4",
+            quality_score=95.5,
+            uploaded_by_user_id="user_001",
+        )
+        result = use_case.execute(command)
+
+        assert result.quality_score == 95.5
+        assert result.uploaded_by_user_id == "user_001"
+
+    def test_create_asset_custom_status(self, mock_asset_repo):
+        """创建时指定自定义状态"""
+        mock_asset_repo.create.side_effect = lambda a: a
+        use_case = CreateAssetUseCase(mock_asset_repo)
+
+        command = CreateAssetCommand(
+            project_id="proj_001",
+            library_id="lib_001",
+            name="ready.mp4",
+            storage_key="videos/ready.mp4",
+            mime_type="video/mp4",
+            status=AssetStatus.READY,
+            classification_status=ClassificationStatus.COMPLETED,
+        )
+        result = use_case.execute(command)
+
+        assert result.status == AssetStatus.READY
+        assert result.classification_status == ClassificationStatus.COMPLETED
+
+    def test_create_asset_with_video_info(self, mock_asset_repo):
+        """创建带视频参数的素材"""
+        mock_asset_repo.create.side_effect = lambda a: a
+        use_case = CreateAssetUseCase(mock_asset_repo)
+
+        command = CreateAssetCommand(
+            project_id="proj_001",
+            library_id="lib_001",
+            name="video.mp4",
+            storage_key="videos/v.mp4",
+            mime_type="video/mp4",
+            width=1920,
+            height=1080,
+            fps=30.0,
+            codec="h264",
+            duration=60.0,
+            thumbnail_url="https://cdn.example.com/thumb.jpg",
+        )
+        result = use_case.execute(command)
+
+        assert result.width == 1920
+        assert result.height == 1080
+        assert result.fps == 30.0
+        assert result.codec == "h264"
+        assert result.thumbnail_url == "https://cdn.example.com/thumb.jpg"

tests/unit/test_audio_merger.py

@@ -0,0 +1,207 @@
+"""音频合并器单元测试."""
+
+from __future__ import annotations
+
+import os
+import tempfile
+from unittest.mock import MagicMock, patch
+
+import pytest
+
+from packages.application.tts_job.audio_merger import AudioMergeError, AudioMerger
+
+
+@pytest.fixture
+def sample_audio_dir():
+    """创建临时目录，放几个模拟音频文件"""
+    tmpdir = tempfile.mkdtemp()
+    files = []
+    for i in range(3):
+        fpath = os.path.join(tmpdir, f"part{i}.mp3")
+        with open(fpath, "wb") as f:
+            f.write(f"audio_data_{i}".encode() * 100)
+        files.append(fpath)
+    yield files
+    import shutil
+    shutil.rmtree(tmpdir, ignore_errors=True)
+
+
+class TestAudioMerger:
+    """AudioMerger 测试"""
+
+    def test_empty_list_raises_error(self):
+        """空列表抛出 AudioMergeError"""
+        merger = AudioMerger()
+        with pytest.raises(AudioMergeError, match="没有可合并的音频文件"):
+            merger.merge([])
+
+    def test_single_file_returns_content(self, sample_audio_dir):
+        """单文件直接返回文件内容"""
+        merger = AudioMerger()
+        result = merger.merge([sample_audio_dir[0]])
+
+        with open(sample_audio_dir[0], "rb") as f:
+            expected = f.read()
+
+        assert result == expected
+
+    def test_single_file_no_ffmpeg_needed(self, sample_audio_dir):
+        """单文件不需要调用 FFmpeg"""
+        with patch("packages.application.tts_job.audio_merger.run_ffmpeg") as mock_ffmpeg:
+            merger = AudioMerger()
+            merger.merge([sample_audio_dir[0]])
+            mock_ffmpeg.assert_not_called()
+
+    def test_merge_multiple_files(self, sample_audio_dir):
+        """多文件合并调用 FFmpeg"""
+        with patch("packages.application.tts_job.audio_merger.run_ffmpeg") as mock_ffmpeg, \
+             patch("packages.application.tts_job.audio_merger.FFMPEG_BIN", "ffmpeg"):
+            # 模拟 FFmpeg 成功：在 output_path 写点数据
+            def fake_run_ffmpeg(cmd, timeout=120):
+                output_idx = cmd.index("-c") + 2  # -c copy 后面是 output_path
+                output_path = cmd[-1]
+                with open(output_path, "wb") as f:
+                    f.write(b"merged_audio_data")
+                return MagicMock(stdout=b"", stderr=b"")
+
+            mock_ffmpeg.side_effect = fake_run_ffmpeg
+
+            merger = AudioMerger()
+            result = merger.merge(sample_audio_dir)
+
+            assert result == b"merged_audio_data"
+            mock_ffmpeg.assert_called_once()
+
+    def test_merge_concat_list_generated(self, sample_audio_dir):
+        """生成正确的 concat demuxer 列表文件"""
+        import subprocess
+
+        with patch("packages.application.tts_job.audio_merger.run_ffmpeg") as mock_ffmpeg, \
+             patch("packages.application.tts_job.audio_merger.FFMPEG_BIN", "ffmpeg"):
+
+            captured_list_content = []
+
+            def fake_run_ffmpeg(cmd, timeout=120):
+                # 找到 -i 参数后面的文件路径
+                # 命令结构: ffmpeg -y -f concat -safe 0 -i LIST_PATH -c copy OUTPUT
+                for i, arg in enumerate(cmd):
+                    if arg == "-i" and i + 1 < len(cmd):
+                        list_path = cmd[i + 1]
+                        if list_path.endswith(".txt"):
+                            with open(list_path, "r") as f:
+                                captured_list_content.append(f.read())
+                        break
+                # 写输出文件
+                output_path = cmd[-1]
+                with open(output_path, "wb") as f:
+                    f.write(b"fake")
+                return MagicMock(stdout=b"", stderr=b"")
+
+            mock_ffmpeg.side_effect = fake_run_ffmpeg
+
+            merger = AudioMerger()
+            merger.merge(sample_audio_dir, output_format="mp3")
+
+            # 检查列表文件包含所有输入文件
+            assert len(captured_list_content) == 1
+            list_content = captured_list_content[0]
+            for fpath in sample_audio_dir:
+                assert fpath in list_content.replace("'\\''", "'")
+
+    def test_merge_ffmpeg_failure_raises(self, sample_audio_dir):
+        """FFmpeg 失败抛出 AudioMergeError"""
+        from subprocess import CalledProcessError
+
+        with patch("packages.application.tts_job.audio_merger.run_ffmpeg") as mock_ffmpeg, \
+             patch("packages.application.tts_job.audio_merger.FFMPEG_BIN", "ffmpeg"):
+            mock_ffmpeg.side_effect = CalledProcessError(
+                returncode=1, cmd=["ffmpeg"], stderr=b"error message"
+            )
+
+            merger = AudioMerger()
+            with pytest.raises(AudioMergeError, match="FFmpeg 合并失败"):
+                merger.merge(sample_audio_dir)
+
+    def test_merge_timeout_raises(self, sample_audio_dir):
+        """合并超时抛出 AudioMergeError"""
+        from subprocess import TimeoutExpired
+
+        with patch("packages.application.tts_job.audio_merger.run_ffmpeg") as mock_ffmpeg, \
+             patch("packages.application.tts_job.audio_merger.FFMPEG_BIN", "ffmpeg"):
+            mock_ffmpeg.side_effect = TimeoutExpired(cmd=["ffmpeg"], timeout=120)
+
+            merger = AudioMerger()
+            with pytest.raises(AudioMergeError, match="超时"):
+                merger.merge(sample_audio_dir)
+
+    def test_merge_cleanup_temp_dir(self, sample_audio_dir):
+        """合并完成后清理临时目录"""
+        with patch("packages.application.tts_job.audio_merger.run_ffmpeg") as mock_ffmpeg, \
+             patch("packages.application.tts_job.audio_merger.FFMPEG_BIN", "ffmpeg"), \
+             patch("packages.application.tts_job.audio_merger.shutil.rmtree") as mock_rmtree:
+
+            def fake_run_ffmpeg(cmd, timeout=120):
+                output_path = cmd[-1]
+                with open(output_path, "wb") as f:
+                    f.write(b"data")
+                return MagicMock()
+
+            mock_ffmpeg.side_effect = fake_run_ffmpeg
+
+            merger = AudioMerger()
+            merger.merge(sample_audio_dir)
+
+            mock_rmtree.assert_called_once()
+            # 第一个参数是临时目录路径
+            temp_dir_path = mock_rmtree.call_args[0][0]
+            assert "tts_merge_" in temp_dir_path
+
+    def test_merge_cleanup_on_error(self, sample_audio_dir):
+        """合并失败也清理临时目录"""
+        with patch("packages.application.tts_job.audio_merger.run_ffmpeg") as mock_ffmpeg, \
+             patch("packages.application.tts_job.audio_merger.FFMPEG_BIN", "ffmpeg"), \
+             patch("packages.application.tts_job.audio_merger.shutil.rmtree") as mock_rmtree:
+            from subprocess import CalledProcessError
+            mock_ffmpeg.side_effect = CalledProcessError(1, ["ffmpeg"])
+
+            merger = AudioMerger()
+            try:
+                merger.merge(sample_audio_dir)
+            except AudioMergeError:
+                pass
+
+            mock_rmtree.assert_called_once()
+
+    def test_merge_custom_output_format(self, sample_audio_dir):
+        """自定义输出格式"""
+        with patch("packages.application.tts_job.audio_merger.run_ffmpeg") as mock_ffmpeg, \
+             patch("packages.application.tts_job.audio_merger.FFMPEG_BIN", "ffmpeg"):
+
+            def fake_run_ffmpeg(cmd, timeout=120):
+                output_path = cmd[-1]
+                assert output_path.endswith(".wav")
+                with open(output_path, "wb") as f:
+                    f.write(b"data")
+                return MagicMock()
+
+            mock_ffmpeg.side_effect = fake_run_ffmpeg
+
+            merger = AudioMerger()
+            merger.merge(sample_audio_dir, output_format="wav")
+
+    def test_merge_two_files(self, sample_audio_dir):
+        """两个文件合并"""
+        with patch("packages.application.tts_job.audio_merger.run_ffmpeg") as mock_ffmpeg, \
+             patch("packages.application.tts_job.audio_merger.FFMPEG_BIN", "ffmpeg"):
+
+            def fake_run_ffmpeg(cmd, timeout=120):
+                output_path = cmd[-1]
+                with open(output_path, "wb") as f:
+                    f.write(b"two_files_merged")
+                return MagicMock()
+
+            mock_ffmpeg.side_effect = fake_run_ffmpeg
+
+            merger = AudioMerger()
+            result = merger.merge(sample_audio_dir[:2])
+            assert result == b"two_files_merged"

tests/unit/test_bind_contact_use_case.py

@@ -0,0 +1,484 @@
+"""绑定联系方式 UseCase 单元测试."""
+
+from __future__ import annotations
+
+from unittest.mock import MagicMock
+
+import pytest
+
+from packages.application.auth.bind_contact_use_case import (
+    BindContactRequest,
+    BindContactUseCase,
+    SendVerificationCodeRequest,
+    SendVerificationCodeUseCase,
+)
+from packages.domain.entities import User
+
+
+@pytest.fixture
+def mock_user_repo():
+    return MagicMock()
+
+
+@pytest.fixture
+def mock_verification_service():
+    svc = MagicMock()
+    svc.verify.return_value = (True, None)
+    return svc
+
+
+@pytest.fixture
+def sample_user():
+    user = User(
+        id="user_001",
+        email="",
+        display_name="测试用户",
+        phone_verified=False,
+        email_verified=False,
+    )
+    user.phone = None
+    return user
+
+
+class TestBindContactRequest:
+    """BindContactRequest 测试"""
+
+    def test_phone_strips_plus86(self):
+        """手机号 +86 前缀会被去掉"""
+        req = BindContactRequest(
+            user_id="u1", phone="+8613800000001", phone_code="1234"
+        )
+        assert req.phone == "13800000001"
+
+    def test_email_lowercased(self):
+        """邮箱会被转小写"""
+        req = BindContactRequest(
+            user_id="u1", email="Test@Example.COM", email_code="1234"
+        )
+        assert req.email == "test@example.com"
+
+    def test_code_stripped(self):
+        """验证码会被 strip"""
+        req = BindContactRequest(
+            user_id="u1", phone="13800000001", phone_code="  1234  "
+        )
+        assert req.phone_code == "1234"
+
+    def test_empty_fields(self):
+        """空字段处理"""
+        req = BindContactRequest(user_id="u1")
+        assert req.phone == ""
+        assert req.email == ""
+        assert req.phone_code == ""
+        assert req.email_code == ""
+
+
+class TestBindContactUseCase:
+    """BindContactUseCase 测试"""
+
+    def test_bind_phone_success(self, mock_user_repo, mock_verification_service, sample_user):
+        """绑定手机号成功"""
+        mock_user_repo.find_by_id.return_value = sample_user
+        mock_user_repo.find_by_phone.return_value = None
+        mock_user_repo.save.return_value = sample_user
+
+        use_case = BindContactUseCase(mock_user_repo, mock_verification_service)
+        request = BindContactRequest(
+            user_id="user_001",
+            phone="13800000001",
+            phone_code="123456",
+        )
+        response, error = use_case.execute(request)
+
+        assert error is None
+        assert response is not None
+        assert response.user.phone == "13800000001"
+        assert response.user.phone_verified is True
+        mock_user_repo.save.assert_called_once()
+
+    def test_bind_email_success(self, mock_user_repo, mock_verification_service, sample_user):
+        """绑定邮箱成功"""
+        mock_user_repo.find_by_id.return_value = sample_user
+        mock_user_repo.find_by_email.return_value = None
+        mock_user_repo.save.return_value = sample_user
+
+        use_case = BindContactUseCase(mock_user_repo, mock_verification_service)
+        request = BindContactRequest(
+            user_id="user_001",
+            email="test@example.com",
+            email_code="123456",
+        )
+        response, error = use_case.execute(request)
+
+        assert error is None
+        assert response is not None
+        assert response.user.email == "test@example.com"
+        assert response.user.email_verified is True
+
+    def test_bind_phone_and_email(self, mock_user_repo, mock_verification_service, sample_user):
+        """同时绑定手机和邮箱"""
+        mock_user_repo.find_by_id.return_value = sample_user
+        mock_user_repo.find_by_phone.return_value = None
+        mock_user_repo.find_by_email.return_value = None
+        mock_user_repo.save.return_value = sample_user
+
+        use_case = BindContactUseCase(mock_user_repo, mock_verification_service)
+        request = BindContactRequest(
+            user_id="user_001",
+            phone="13800000001",
+            phone_code="123456",
+            email="test@example.com",
+            email_code="123456",
+        )
+        response, error = use_case.execute(request)
+
+        assert error is None
+        assert response.user.phone == "13800000001"
+        assert response.user.phone_verified is True
+        assert response.user.email == "test@example.com"
+        assert response.user.email_verified is True
+        # 两个都绑定完成，binding_completed_at 应该被设置
+        assert response.user.binding_completed_at is not None
+
+    def test_no_contact_info_returns_error(self, mock_user_repo, mock_verification_service):
+        """既没填手机也没填邮箱返回错误"""
+        use_case = BindContactUseCase(mock_user_repo, mock_verification_service)
+        request = BindContactRequest(user_id="user_001")
+
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert "至少填写" in error
+        mock_user_repo.find_by_id.assert_not_called()
+
+    def test_user_not_found(self, mock_user_repo, mock_verification_service):
+        """用户不存在返回错误"""
+        mock_user_repo.find_by_id.return_value = None
+
+        use_case = BindContactUseCase(mock_user_repo, mock_verification_service)
+        request = BindContactRequest(
+            user_id="nonexistent",
+            phone="13800000001",
+            phone_code="123456",
+        )
+
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert "用户不存在" in error
+
+    def test_phone_already_bound_by_other(self, mock_user_repo, mock_verification_service, sample_user):
+        """手机号已被其他账号绑定"""
+        other_user = MagicMock()
+        other_user.id = "user_other"
+        mock_user_repo.find_by_id.return_value = sample_user
+        mock_user_repo.find_by_phone.return_value = other_user
+
+        use_case = BindContactUseCase(mock_user_repo, mock_verification_service)
+        request = BindContactRequest(
+            user_id="user_001",
+            phone="13800000001",
+            phone_code="123456",
+        )
+
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert "已被其他账号绑定" in error
+        mock_user_repo.save.assert_not_called()
+
+    def test_phone_bound_by_self_ok(self, mock_user_repo, mock_verification_service, sample_user):
+        """手机号已被自己绑定，允许"""
+        sample_user.phone = "13800000001"
+        mock_user_repo.find_by_id.return_value = sample_user
+        mock_user_repo.find_by_phone.return_value = sample_user
+        mock_user_repo.save.return_value = sample_user
+
+        use_case = BindContactUseCase(mock_user_repo, mock_verification_service)
+        request = BindContactRequest(
+            user_id="user_001",
+            phone="13800000001",
+            phone_code="123456",
+        )
+
+        response, error = use_case.execute(request)
+        assert error is None
+        assert response is not None
+
+    def test_wrong_phone_code(self, mock_user_repo, mock_verification_service, sample_user):
+        """手机验证码错误"""
+        mock_user_repo.find_by_id.return_value = sample_user
+        mock_user_repo.find_by_phone.return_value = None
+        mock_verification_service.verify.return_value = (False, "验证码过期")
+
+        use_case = BindContactUseCase(mock_user_repo, mock_verification_service)
+        request = BindContactRequest(
+            user_id="user_001",
+            phone="13800000001",
+            phone_code="000000",
+        )
+
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert "手机验证码错误" in error
+        mock_user_repo.save.assert_not_called()
+
+    def test_missing_phone_code(self, mock_user_repo, mock_verification_service, sample_user):
+        """缺少手机验证码"""
+        mock_user_repo.find_by_id.return_value = sample_user
+
+        use_case = BindContactUseCase(mock_user_repo, mock_verification_service)
+        request = BindContactRequest(
+            user_id="user_001",
+            phone="13800000001",
+            phone_code="",
+        )
+
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert "请输入手机验证码" in error
+
+    def test_invalid_phone_format(self, mock_user_repo, mock_verification_service, sample_user):
+        """手机号格式不正确"""
+        mock_user_repo.find_by_id.return_value = sample_user
+
+        use_case = BindContactUseCase(mock_user_repo, mock_verification_service)
+        request = BindContactRequest(
+            user_id="user_001",
+            phone="123",  # 太短
+            phone_code="123456",
+        )
+
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert error is not None
+
+    def test_email_already_bound_by_other(self, mock_user_repo, mock_verification_service, sample_user):
+        """邮箱已被其他账号绑定"""
+        other_user = MagicMock()
+        other_user.id = "user_other"
+        mock_user_repo.find_by_id.return_value = sample_user
+        mock_user_repo.find_by_email.return_value = other_user
+
+        use_case = BindContactUseCase(mock_user_repo, mock_verification_service)
+        request = BindContactRequest(
+            user_id="user_001",
+            email="test@example.com",
+            email_code="123456",
+        )
+
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert "已被其他账号绑定" in error
+
+    def test_missing_email_code(self, mock_user_repo, mock_verification_service, sample_user):
+        """缺少邮箱验证码"""
+        mock_user_repo.find_by_id.return_value = sample_user
+        mock_user_repo.find_by_email.return_value = None
+
+        use_case = BindContactUseCase(mock_user_repo, mock_verification_service)
+        request = BindContactRequest(
+            user_id="user_001",
+            email="test@example.com",
+            email_code="",
+        )
+
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert "请输入邮箱验证码" in error
+
+    def test_invalid_email_format(self, mock_user_repo, mock_verification_service, sample_user):
+        """邮箱格式不正确"""
+        mock_user_repo.find_by_id.return_value = sample_user
+
+        use_case = BindContactUseCase(mock_user_repo, mock_verification_service)
+        request = BindContactRequest(
+            user_id="user_001",
+            email="not_an_email",
+            email_code="123456",
+        )
+
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert error is not None
+
+    def test_response_to_dict(self, mock_user_repo, mock_verification_service, sample_user):
+        """BindContactResponse.to_dict 返回正确格式"""
+        mock_user_repo.find_by_id.return_value = sample_user
+        mock_user_repo.find_by_phone.return_value = None
+        mock_user_repo.find_by_email.return_value = None
+        mock_user_repo.save.return_value = sample_user
+
+        use_case = BindContactUseCase(mock_user_repo, mock_verification_service)
+        request = BindContactRequest(
+            user_id="user_001",
+            phone="13800000001",
+            phone_code="123456",
+            email="test@example.com",
+            email_code="123456",
+        )
+        response, _ = use_case.execute(request)
+        data = response.to_dict()
+
+        assert "user" in data
+        assert data["user"]["id"] == "user_001"
+        assert "email" in data["user"]
+        assert "phone" in data["user"]
+        assert "phone_verified" in data["user"]
+        assert "display_name" in data["user"]
+        assert "binding_complete" in data["user"]
+
+
+class TestSendVerificationCodeRequest:
+    """SendVerificationCodeRequest 测试"""
+
+    def test_value_stripped(self):
+        """value 会被 strip"""
+        req = SendVerificationCodeRequest(target="phone", value="  13800000001  ", purpose="bind")
+        assert req.value == "13800000001"
+
+
+class TestSendVerificationCodeUseCase:
+    """SendVerificationCodeUseCase 测试"""
+
+    def test_send_phone_code_success(self, mock_verification_service):
+        """发送手机验证码成功"""
+        from datetime import datetime, timedelta, timezone
+
+        code_obj = MagicMock()
+        code_obj.code = "123456"
+        code_obj.created_at = datetime.now(timezone.utc)
+        code_obj.expires_at = datetime.now(timezone.utc) + timedelta(minutes=5)
+        mock_verification_service.generate.return_value = (code_obj, None)
+
+        mock_sms = MagicMock()
+        use_case = SendVerificationCodeUseCase(
+            mock_verification_service,
+            sms_service=mock_sms,
+        )
+        request = SendVerificationCodeRequest(
+            target="phone",
+            value="13800000001",
+            purpose="bind",
+        )
+        response, error = use_case.execute(request)
+
+        assert error is None
+        assert response is not None
+        assert response.expires_in > 0
+        assert response.resend_after == 60
+        mock_sms.send_verification_code.assert_called_once()
+
+    def test_send_email_code_success(self, mock_verification_service):
+        """发送邮箱验证码成功"""
+        from datetime import datetime, timedelta, timezone
+
+        code_obj = MagicMock()
+        code_obj.code = "654321"
+        code_obj.created_at = datetime.now(timezone.utc)
+        code_obj.expires_at = datetime.now(timezone.utc) + timedelta(minutes=5)
+        mock_verification_service.generate.return_value = (code_obj, None)
+
+        mock_email = MagicMock()
+        use_case = SendVerificationCodeUseCase(
+            mock_verification_service,
+            email_service=mock_email,
+        )
+        request = SendVerificationCodeRequest(
+            target="email",
+            value="test@example.com",
+            purpose="bind",
+        )
+        response, error = use_case.execute(request)
+
+        assert error is None
+        assert response is not None
+        mock_email.send_email.assert_called_once()
+
+    def test_invalid_target_returns_error(self, mock_verification_service):
+        """不支持的目标类型返回错误"""
+        use_case = SendVerificationCodeUseCase(mock_verification_service)
+        request = SendVerificationCodeRequest(
+            target="wechat",
+            value="some_value",
+            purpose="bind",
+        )
+
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert "不支持的目标类型" in error
+
+    def test_invalid_phone_format(self, mock_verification_service):
+        """手机号格式错误返回错误"""
+        use_case = SendVerificationCodeUseCase(mock_verification_service)
+        request = SendVerificationCodeRequest(
+            target="phone",
+            value="123",
+            purpose="bind",
+        )
+
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert error is not None
+        mock_verification_service.generate.assert_not_called()
+
+    def test_invalid_email_format(self, mock_verification_service):
+        """邮箱格式错误返回错误"""
+        use_case = SendVerificationCodeUseCase(mock_verification_service)
+        request = SendVerificationCodeRequest(
+            target="email",
+            value="not_email",
+            purpose="bind",
+        )
+
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert error is not None
+        mock_verification_service.generate.assert_not_called()
+
+    def test_generate_failure_returns_error(self, mock_verification_service):
+        """生成验证码失败返回错误"""
+        mock_verification_service.generate.return_value = (None, "发送太频繁")
+
+        use_case = SendVerificationCodeUseCase(mock_verification_service)
+        request = SendVerificationCodeRequest(
+            target="phone",
+            value="13800000001",
+            purpose="bind",
+        )
+
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert "发送太频繁" in error
+
+    def test_response_to_dict(self, mock_verification_service):
+        """SendVerificationCodeResponse.to_dict 格式正确"""
+        from datetime import datetime, timedelta, timezone
+
+        code_obj = MagicMock()
+        code_obj.code = "123456"
+        code_obj.created_at = datetime.now(timezone.utc)
+        code_obj.expires_at = datetime.now(timezone.utc) + timedelta(seconds=300)
+        mock_verification_service.generate.return_value = (code_obj, None)
+
+        use_case = SendVerificationCodeUseCase(mock_verification_service)
+        request = SendVerificationCodeRequest(
+            target="phone",
+            value="13800000001",
+            purpose="bind",
+        )
+        response, _ = use_case.execute(request)
+        data = response.to_dict()
+
+        assert "expires_in" in data
+        assert "resend_after" in data

tests/unit/test_classification_jobs.py

@@ -0,0 +1,96 @@
+"""AI分类任务 UseCase 单元测试."""
+
+from __future__ import annotations
+
+from unittest.mock import MagicMock
+
+import pytest
+
+from packages.application.classification_jobs import (
+    SubmitClassificationJobCommand,
+    SubmitClassificationJobUseCase,
+)
+from packages.domain import ClassificationJob
+
+
+@pytest.fixture
+def mock_repo():
+    return MagicMock()
+
+
+class TestSubmitClassificationJobUseCase:
+    """SubmitClassificationJobUseCase 测试"""
+
+    def test_submit_job_success(self, mock_repo):
+        """正常提交分类任务"""
+        mock_repo.create.side_effect = lambda j: j
+        use_case = SubmitClassificationJobUseCase(mock_repo)
+
+        command = SubmitClassificationJobCommand(
+            project_id="proj_001",
+            asset_id="asset_001",
+        )
+        result = use_case.execute(command)
+
+        assert isinstance(result, ClassificationJob)
+        assert result.project_id == "proj_001"
+        assert result.asset_id == "asset_001"
+        assert result.status == "pending"
+        assert result.confidence == 0.0
+        assert result.error_message == ""
+        mock_repo.create.assert_called_once()
+
+    def test_submit_job_generates_id(self, mock_repo):
+        """提交任务时生成 id"""
+        mock_repo.create.side_effect = lambda j: j
+        use_case = SubmitClassificationJobUseCase(mock_repo)
+
+        command = SubmitClassificationJobCommand(
+            project_id="proj_001",
+            asset_id="asset_001",
+        )
+        result = use_case.execute(command)
+
+        assert result.id is not None
+        assert len(result.id) > 0
+
+    def test_submit_job_two_different_ids(self, mock_repo):
+        """两次提交生成不同的 id"""
+        mock_repo.create.side_effect = lambda j: j
+        use_case = SubmitClassificationJobUseCase(mock_repo)
+
+        command = SubmitClassificationJobCommand(
+            project_id="proj_001",
+            asset_id="asset_001",
+        )
+        r1 = use_case.execute(command)
+        r2 = use_case.execute(command)
+
+        assert r1.id != r2.id
+
+    def test_submit_job_initial_classification_empty(self, mock_repo):
+        """初始 classification 为空"""
+        mock_repo.create.side_effect = lambda j: j
+        use_case = SubmitClassificationJobUseCase(mock_repo)
+
+        command = SubmitClassificationJobCommand(
+            project_id="proj_001",
+            asset_id="asset_001",
+        )
+        result = use_case.execute(command)
+
+        assert result.classification == ""
+
+    def test_submit_job_returns_repo_result(self, mock_repo):
+        """返回 repository.create 的结果"""
+        expected = MagicMock(spec=ClassificationJob)
+        mock_repo.create.return_value = expected
+
+        use_case = SubmitClassificationJobUseCase(mock_repo)
+        command = SubmitClassificationJobCommand(
+            project_id="proj_001",
+            asset_id="asset_001",
+        )
+        result = use_case.execute(command)
+
+        assert result is expected

tests/unit/test_generation_tasks.py

@@ -1,13 +1,6 @@
-"""
-生成任务应用层用例单元测试（第十九波）
+"""生成任务 UseCase 单元测试."""
 
-覆盖：
-- CreateGenerationTaskUseCase
-- GetGenerationTaskUseCase
-- ListUserTasksFilteredUseCase
-- RetryGenerationTaskUseCase
-- Command / Filter / Result 对象
-"""
+from __future__ import annotations
 
 from unittest.mock import MagicMock
 
@@ -22,7 +15,7 @@ from packages.application.generation_tasks import (
     ListUserTasksFilteredUseCase,
     RetryGenerationTaskUseCase,
 )
-from packages.domain.generation_task import GenerationTask, GenerationTaskStatus
+from packages.domain import GenerationTask
 
 
 @pytest.fixture
@@ -30,291 +23,238 @@ def mock_repo():
     return MagicMock()
 
 
-def make_task(status=GenerationTaskStatus.PENDING, **kwargs):
-    task = GenerationTask(
-        id="task-1",
-        project_id="proj-1",
-        asset_library_id="lib-1",
-        strategy_id="strat-1",
-        template_id="tmpl-1",
-        asset_ids=["asset-1"],
-        title_ids=["title-1"],
-        voice_ids=["voice-1"],
-        created_by_user_id="user-1",
-        video_title="测试标题",
-    )
-    if status != GenerationTaskStatus.PENDING:
-        object.__setattr__(task, "status", status)
-    # 应用额外 kwargs
-    for k, v in kwargs.items():
-        object.__setattr__(task, k, v)
+@pytest.fixture
+def sample_task():
+    task = MagicMock(spec=GenerationTask)
+    task.id = "task_001"
+    task.project_id = "proj_001"
+    task.status = "pending"
     return task
 
 
-# ============================================================
-# CreateGenerationTaskUseCase
-# ============================================================
-
-
 class TestCreateGenerationTaskUseCase:
-    """CreateGenerationTaskUseCase 创建生成任务"""
+    """CreateGenerationTaskUseCase 测试"""
 
-    def test_create_success(self, mock_repo):
-        """正常创建任务"""
+    def test_create_task_success(self, mock_repo):
+        """正常创建生成任务"""
         mock_repo.create.side_effect = lambda t: t
+        use_case = CreateGenerationTaskUseCase(mock_repo)
 
-        cmd = CreateGenerationTaskCommand(
-            project_id="proj-1",
-            asset_library_id="lib-1",
-            strategy_id="strat-1",
-            voice_library_id="vlib-1",
-            template_id="tmpl-1",
-            asset_ids=["a1", "a2"],
-            title_ids=["t1"],
-            voice_ids=["v1"],
-            created_by_user_id="user-1",
-            source_edit_plan_id="plan-1",
-            asset_select_mode="auto",
-            batch_id="batch-1",
-            video_title="我的视频",
+        command = CreateGenerationTaskCommand(
+            project_id="proj_001",
+            template_id="tpl_001",
+            asset_library_id="lib_001",
+            voice_library_id="voice_lib_001",
+            created_by_user_id="user_001",
+        )
+        result = use_case.execute(command)
+
+        assert isinstance(result, GenerationTask)
+        assert result.project_id == "proj_001"
+        assert result.template_id == "tpl_001"
+        assert result.status == "pending"
+        assert result.progress == 0.0
+        assert result.result_count == 0
+        mock_repo.create.assert_called_once()
+
+    def test_create_task_generates_id(self, mock_repo):
+        """创建任务时生成 id"""
+        mock_repo.create.side_effect = lambda t: t
+        use_case = CreateGenerationTaskUseCase(mock_repo)
+
+        command = CreateGenerationTaskCommand(project_id="proj_001")
+        result = use_case.execute(command)
+
+        assert result.id is not None
+        assert len(result.id) > 0
+
+    def test_create_task_with_asset_ids(self, mock_repo):
+        """创建带 asset_ids 的任务"""
+        mock_repo.create.side_effect = lambda t: t
+        use_case = CreateGenerationTaskUseCase(mock_repo)
+
+        command = CreateGenerationTaskCommand(
+            project_id="proj_001",
+            asset_ids=["asset_1", "asset_2", "asset_3"],
+            title_ids=["title_1", "title_2"],
+            voice_ids=["voice_1"],
+        )
+        result = use_case.execute(command)
+
+        assert len(result.asset_ids) == 3
+        assert len(result.title_ids) == 2
+        assert len(result.voice_ids) == 1
+
+    def test_create_task_with_auto_retry(self, mock_repo):
+        """创建带自动重试配置的任务"""
+        mock_repo.create.side_effect = lambda t: t
+        use_case = CreateGenerationTaskUseCase(mock_repo)
+
+        command = CreateGenerationTaskCommand(
+            project_id="proj_001",
             auto_retry_enabled=True,
             auto_retry_max=3,
         )
-        uc = CreateGenerationTaskUseCase(mock_repo)
-        task = uc.execute(cmd)
+        result = use_case.execute(command)
 
-        assert task.project_id == "proj-1"
-        assert task.asset_library_id == "lib-1"
-        assert task.strategy_id == "strat-1"
-        assert task.voice_library_id == "vlib-1"
-        assert task.template_id == "tmpl-1"
-        assert task.asset_ids == ["a1", "a2"]
-        assert task.title_ids == ["t1"]
-        assert task.voice_ids == ["v1"]
-        assert task.created_by_user_id == "user-1"
-        assert task.source_edit_plan_id == "plan-1"
-        assert task.asset_select_mode == "auto"
-        assert task.batch_id == "batch-1"
-        assert task.video_title == "我的视频"
-        assert task.auto_retry_enabled is True
-        assert task.auto_retry_max == 3
-        assert task.status == GenerationTaskStatus.PENDING
-        assert task.progress == 0.0
-        assert task.result_count == 0
-        mock_repo.create.assert_called_once()
+        assert result.auto_retry_enabled is True
+        assert result.auto_retry_max == 3
 
-    def test_create_default_values(self, mock_repo):
-        """默认参数值"""
+    def test_create_task_with_bgm_config(self, mock_repo):
+        """创建带 BGM 配置的任务"""
         mock_repo.create.side_effect = lambda t: t
+        use_case = CreateGenerationTaskUseCase(mock_repo)
 
-        cmd = CreateGenerationTaskCommand(
-            project_id="proj-1",
-            asset_library_id="lib-1",
+        bgm = {"enabled": True, "volume": 0.5, "library_id": "bgm_lib"}
+        command = CreateGenerationTaskCommand(
+            project_id="proj_001",
+            bgm_config=bgm,
+            resolution="1080p",
+            video_title="测试视频",
         )
-        uc = CreateGenerationTaskUseCase(mock_repo)
-        task = uc.execute(cmd)
+        result = use_case.execute(command)
 
-        assert task.asset_ids == []
-        assert task.title_ids == []
-        assert task.voice_ids == []
-        assert task.created_by_user_id == ""
-        assert task.video_title == ""
-        assert task.auto_retry_enabled is False
-        assert task.auto_retry_max == 0
+        assert result.bgm_config == bgm
+        assert result.resolution == "1080p"
+        assert result.video_title == "测试视频"
 
-    def test_create_id_is_generated(self, mock_repo):
-        """ID 会自动生成"""
+    def test_create_task_defaults(self, mock_repo):
+        """默认参数的任务"""
         mock_repo.create.side_effect = lambda t: t
+        use_case = CreateGenerationTaskUseCase(mock_repo)
 
-        cmd = CreateGenerationTaskCommand(project_id="proj-1", asset_library_id="lib-1")
-        uc = CreateGenerationTaskUseCase(mock_repo)
-        task = uc.execute(cmd)
+        command = CreateGenerationTaskCommand()
+        result = use_case.execute(command)
 
-        assert task.id
-        assert isinstance(task.id, str)
-        assert len(task.id) > 10  # uuid hex
-
-
-# ============================================================
-# GetGenerationTaskUseCase
-# ============================================================
+        assert result.project_id == ""
+        assert result.asset_ids == []
+        assert result.auto_retry_enabled is False
+        assert result.auto_retry_max == 0
 
 
 class TestGetGenerationTaskUseCase:
-    """GetGenerationTaskUseCase 获取任务"""
+    """GetGenerationTaskUseCase 测试"""
 
-    def test_get_existing(self, mock_repo):
-        """获取存在的任务"""
-        task = make_task()
-        mock_repo.get.return_value = task
+    def test_get_task_success(self, mock_repo, sample_task):
+        """获取任务成功"""
+        mock_repo.get.return_value = sample_task
 
-        uc = GetGenerationTaskUseCase(mock_repo)
-        result = uc.execute("task-1")
+        use_case = GetGenerationTaskUseCase(mock_repo)
+        result = use_case.execute("task_001")
 
-        assert result is task
-        mock_repo.get.assert_called_once_with("task-1")
+        assert result is sample_task
+        mock_repo.get.assert_called_once_with("task_001")
 
-    def test_get_not_found(self, mock_repo):
-        """获取不存在的任务返回 None"""
+    def test_get_task_not_found(self, mock_repo):
+        """任务不存在返回 None"""
         mock_repo.get.return_value = None
 
-        uc = GetGenerationTaskUseCase(mock_repo)
-        result = uc.execute("nonexistent")
+        use_case = GetGenerationTaskUseCase(mock_repo)
+        result = use_case.execute("nonexistent")
 
         assert result is None
 
 
-# ============================================================
-# ListUserTasksFilteredUseCase
-# ============================================================
-
-
 class TestListUserTasksFilteredUseCase:
-    """ListUserTasksFilteredUseCase 按用户筛选任务"""
+    """ListUserTasksFilteredUseCase 测试"""
 
-    def test_list_without_filters(self, mock_repo):
-        """无筛选条件查询"""
-        tasks = [make_task(), make_task()]
-        mock_repo.list_by_user_filtered.return_value = tasks
-        mock_repo.count_by_user_filtered.return_value = 2
+    def test_list_without_filter(self, mock_repo, sample_task):
+        """不带筛选条件查询"""
+        mock_repo.list_by_user_filtered.return_value = [sample_task]
+        mock_repo.count_by_user_filtered.return_value = 1
 
-        uc = ListUserTasksFilteredUseCase(mock_repo)
-        result = uc.execute("user-1")
+        use_case = ListUserTasksFilteredUseCase(mock_repo)
+        result = use_case.execute("user_001")
 
         assert isinstance(result, ListGenerationTasksResult)
-        assert len(result.items) == 2
-        assert result.total == 2
-        mock_repo.list_by_user_filtered.assert_called_once_with("user-1", status=None, limit=None, offset=0)
-        mock_repo.count_by_user_filtered.assert_called_once_with("user-1", status=None)
+        assert len(result.items) == 1
+        assert result.total == 1
+        mock_repo.list_by_user_filtered.assert_called_once_with(
+            "user_001", status=None, limit=None, offset=0
+        )
 
     def test_list_with_status_filter(self, mock_repo):
         """按状态筛选"""
         mock_repo.list_by_user_filtered.return_value = []
         mock_repo.count_by_user_filtered.return_value = 0
 
-        uc = ListUserTasksFilteredUseCase(mock_repo)
-        uc.execute("user-1", status="running")
+        use_case = ListUserTasksFilteredUseCase(mock_repo)
+        result = use_case.execute("user_001", status="completed")
 
-        mock_repo.list_by_user_filtered.assert_called_once_with("user-1", status="running", limit=None, offset=0)
-        mock_repo.count_by_user_filtered.assert_called_once_with("user-1", status="running")
+        assert result.total == 0
+        mock_repo.list_by_user_filtered.assert_called_once_with(
+            "user_001", status="completed", limit=None, offset=0
+        )
 
     def test_list_with_pagination(self, mock_repo):
-        """分页查询"""
+        """带分页参数查询"""
         mock_repo.list_by_user_filtered.return_value = []
-        mock_repo.count_by_user_filtered.return_value = 100
+        mock_repo.count_by_user_filtered.return_value = 50
 
-        uc = ListUserTasksFilteredUseCase(mock_repo)
-        result = uc.execute("user-1", limit=10, offset=20)
+        use_case = ListUserTasksFilteredUseCase(mock_repo)
+        result = use_case.execute("user_001", limit=10, offset=20)
 
-        assert result.total == 100
-        mock_repo.list_by_user_filtered.assert_called_once_with("user-1", status=None, limit=10, offset=20)
+        assert result.total == 50
+        mock_repo.list_by_user_filtered.assert_called_once_with(
+            "user_001", status=None, limit=10, offset=20
+        )
 
-    def test_list_empty_result(self, mock_repo):
-        """空结果"""
+    def test_list_with_all_params(self, mock_repo):
+        """带所有筛选和分页参数"""
         mock_repo.list_by_user_filtered.return_value = []
-        mock_repo.count_by_user_filtered.return_value = 0
+        mock_repo.count_by_user_filtered.return_value = 5
 
-        uc = ListUserTasksFilteredUseCase(mock_repo)
-        result = uc.execute("user-1", status="failed")
+        use_case = ListUserTasksFilteredUseCase(mock_repo)
+        use_case.execute("user_001", status="failed", limit=20, offset=0)
 
-        assert result.items == []
-        assert result.total == 0
-
-
-# ============================================================
-# RetryGenerationTaskUseCase
-# ============================================================
+        mock_repo.list_by_user_filtered.assert_called_once_with(
+            "user_001", status="failed", limit=20, offset=0
+        )
+        mock_repo.count_by_user_filtered.assert_called_once_with(
+            "user_001", status="failed"
+        )
 
 
 class TestRetryGenerationTaskUseCase:
-    """RetryGenerationTaskUseCase 重试失败任务"""
+    """RetryGenerationTaskUseCase 测试"""
 
-    def test_retry_success(self, mock_repo):
-        """失败任务重试成功"""
-        task = make_task(
-            status=GenerationTaskStatus.FAILED,
-            error_message="网络超时",
-            retry_count=0,
-        )
+    def test_retry_failed_task(self, mock_repo):
+        """重试失败的任务"""
+        task = MagicMock(spec=GenerationTask)
+        task.is_failed = True
         mock_repo.get.return_value = task
-        mock_repo.update.side_effect = lambda t: t
+        mock_repo.update.return_value = task
 
-        uc = RetryGenerationTaskUseCase(mock_repo)
-        result = uc.execute("task-1")
+        use_case = RetryGenerationTaskUseCase(mock_repo)
+        result = use_case.execute("task_001")
 
-        assert result.status == GenerationTaskStatus.PENDING
-        assert result.retry_count == 1
-        assert result.error_message == ""
-        assert result.error_info == {}
-        assert result.progress == 0.0
-        assert result.result_count == 0
-        assert result.started_at is None
-        assert result.completed_at is None
-        mock_repo.update.assert_called_once()
+        task.mark_pending_from_failed.assert_called_once()
+        mock_repo.update.assert_called_once_with(task)
+        assert result is task
 
     def test_retry_not_found(self, mock_repo):
-        """任务不存在"""
+        """任务不存在抛出 ValueError"""
         mock_repo.get.return_value = None
 
-        uc = RetryGenerationTaskUseCase(mock_repo)
+        use_case = RetryGenerationTaskUseCase(mock_repo)
+
         with pytest.raises(ValueError, match="任务不存在"):
-            uc.execute("nonexistent")
+            use_case.execute("nonexistent")
 
-    def test_retry_not_failed(self, mock_repo):
-        """非失败状态不能重试"""
-        task = make_task(status=GenerationTaskStatus.RUNNING)
+        mock_repo.update.assert_not_called()
+
+    def test_retry_non_failed_task(self, mock_repo):
+        """非失败状态的任务不能重试"""
+        task = MagicMock(spec=GenerationTask)
+        task.is_failed = False
+        task.status = MagicMock()
+        task.status.value = "running"
         mock_repo.get.return_value = task
 
-        uc = RetryGenerationTaskUseCase(mock_repo)
-        with pytest.raises(ValueError, match="只有失败状态"):
-            uc.execute("task-1")
+        use_case = RetryGenerationTaskUseCase(mock_repo)
 
-    def test_retry_pending_not_allowed(self, mock_repo):
-        """pending 状态不能重试"""
-        task = make_task(status=GenerationTaskStatus.PENDING)
-        mock_repo.get.return_value = task
+        with pytest.raises(ValueError, match="只有失败状态的任务才能重试"):
+            use_case.execute("task_001")
 
-        uc = RetryGenerationTaskUseCase(mock_repo)
-        with pytest.raises(ValueError, match="只有失败状态"):
-            uc.execute("task-1")
-
-    def test_retry_preserves_id(self, mock_repo):
-        """重试复用同一个 task_id"""
-        task = make_task(status=GenerationTaskStatus.FAILED)
-        original_id = task.id
-        mock_repo.get.return_value = task
-        mock_repo.update.side_effect = lambda t: t
-
-        uc = RetryGenerationTaskUseCase(mock_repo)
-        result = uc.execute("task-1")
-
-        assert result.id == original_id
-
-
-# ============================================================
-# Command / Filter / Result 对象
-# ============================================================
-
-
-class TestCommandAndDataObjects:
-    """命令对象和数据对象"""
-
-    def test_create_command_defaults(self):
-        cmd = CreateGenerationTaskCommand()
-        assert cmd.project_id == ""
-        assert cmd.asset_library_id == ""
-        assert cmd.asset_ids == []
-        assert cmd.title_ids == []
-        assert cmd.voice_ids == []
-        assert cmd.auto_retry_enabled is False
-        assert cmd.auto_retry_max == 0
-
-    def test_list_filter_defaults(self):
-        f = ListTasksFilter()
-        assert f.status is None
-
-    def test_list_result(self):
-        task = make_task()
-        r = ListGenerationTasksResult(items=[task], total=1)
-        assert len(r.items) == 1
-        assert r.total == 1
+        mock_repo.update.assert_not_called()
+        task.mark_pending_from_failed.assert_not_called()

tests/unit/test_ingest_jobs.py

@@ -0,0 +1,72 @@
+"""素材入库任务 UseCase 单元测试."""
+
+from __future__ import annotations
+
+from unittest.mock import MagicMock
+
+import pytest
+
+from packages.application.ingest_jobs import (
+    SubmitIngestJobCommand,
+    SubmitIngestJobUseCase,
+)
+from packages.domain import IngestJob
+
+
+@pytest.fixture
+def mock_repo():
+    return MagicMock()
+
+
+class TestSubmitIngestJobUseCase:
+    """SubmitIngestJobUseCase 测试"""
+
+    def test_submit_job_success(self, mock_repo):
+        """正常提交入库任务"""
+        mock_repo.create.side_effect = lambda j: j
+        use_case = SubmitIngestJobUseCase(mock_repo)
+
+        command = SubmitIngestJobCommand(
+            project_id="proj_001",
+            library_id="lib_001",
+            storage_key="videos/test.mp4",
+            file_hash="abc123def",
+        )
+        result = use_case.execute(command)
+
+        assert isinstance(result, IngestJob)
+        assert result.project_id == "proj_001"
+        assert result.library_id == "lib_001"
+        assert result.storage_key == "videos/test.mp4"
+        assert result.file_hash == "abc123def"
+        mock_repo.create.assert_called_once()
+
+    def test_submit_job_without_hash(self, mock_repo):
+        """不传 file_hash 时默认为空"""
+        mock_repo.create.side_effect = lambda j: j
+        use_case = SubmitIngestJobUseCase(mock_repo)
+
+        command = SubmitIngestJobCommand(
+            project_id="proj_001",
+            library_id="lib_001",
+            storage_key="images/test.png",
+        )
+        result = use_case.execute(command)
+
+        assert result.file_hash == ""
+        mock_repo.create.assert_called_once()
+
+    def test_submit_job_returns_repo_result(self, mock_repo):
+        """返回 repository.create 的结果"""
+        expected_job = MagicMock(spec=IngestJob)
+        mock_repo.create.return_value = expected_job
+
+        use_case = SubmitIngestJobUseCase(mock_repo)
+        command = SubmitIngestJobCommand(
+            project_id="proj_001",
+            library_id="lib_001",
+            storage_key="test.mp4",
+        )
+        result = use_case.execute(command)
+
+        assert result is expected_job

tests/unit/test_jwt_handler.py

@@ -0,0 +1,169 @@
+"""JWT Handler 单元测试."""
+
+from __future__ import annotations
+
+import time
+
+import pytest
+
+from packages.application.auth.jwt_handler import (
+    JWTHandler,
+    configure_jwt_handler,
+    get_jwt_handler,
+)
+
+
+@pytest.fixture
+def jwt_handler():
+    return JWTHandler(
+        secret_key="test-secret-key-12345",
+        algorithm="HS256",
+        access_token_expire_minutes=30,
+    )
+
+
+class TestJWTHandler:
+    """JWTHandler 测试"""
+
+    def test_create_access_token_returns_string(self, jwt_handler):
+        """创建 access_token 返回非空字符串"""
+        token = jwt_handler.create_access_token(user_id="user_001")
+
+        assert isinstance(token, str)
+        assert len(token) > 0
+
+    def test_create_access_token_with_role(self, jwt_handler):
+        """创建带 role 的 access_token"""
+        token = jwt_handler.create_access_token(user_id="user_001", role="admin")
+        payload = jwt_handler.verify_access_token(token)
+
+        assert payload["sub"] == "user_001"
+        assert payload["role"] == "admin"
+
+    def test_create_access_token_with_additional_claims(self, jwt_handler):
+        """创建带额外声明的 access_token"""
+        token = jwt_handler.create_access_token(
+            user_id="user_001",
+            additional_claims={"email": "test@example.com", "tenant": "t1"},
+        )
+        payload = jwt_handler.verify_access_token(token)
+
+        assert payload["sub"] == "user_001"
+        assert payload["email"] == "test@example.com"
+        assert payload["tenant"] == "t1"
+
+    def test_verify_access_token_success(self, jwt_handler):
+        """验证有效 access_token"""
+        token = jwt_handler.create_access_token(user_id="user_001")
+        payload = jwt_handler.verify_access_token(token)
+
+        assert payload["sub"] == "user_001"
+        assert "exp" in payload
+        assert "iat" in payload
+
+    def test_verify_access_token_type_check(self, jwt_handler):
+        """verify_access_token 验证 token 类型为 access"""
+        token = jwt_handler.create_access_token(user_id="user_001")
+        payload = jwt_handler.verify_access_token(token)
+
+        assert payload.get("type") == "access" or "type" in payload
+
+    def test_verify_token_no_type_restriction(self, jwt_handler):
+        """verify_token 不限制 token 类型"""
+        token = jwt_handler.create_access_token(user_id="user_001")
+        payload = jwt_handler.verify_token(token)
+
+        assert payload["sub"] == "user_001"
+
+    def test_expired_token_raises_error(self):
+        """过期 token 验证失败"""
+        handler = JWTHandler(
+            secret_key="test-secret",
+            access_token_expire_minutes=-1,  # 立即过期
+        )
+        token = handler.create_access_token(user_id="user_001")
+
+        # 等待一小段时间确保过期
+        time.sleep(0.1)
+
+        with pytest.raises(Exception):
+            handler.verify_access_token(token)
+
+    def test_invalid_token_raises_error(self, jwt_handler):
+        """无效 token 验证失败"""
+        with pytest.raises(Exception):
+            jwt_handler.verify_access_token("invalid.token.here")
+
+    def test_empty_token_raises_error(self, jwt_handler):
+        """空字符串 token 验证失败"""
+        with pytest.raises(Exception):
+            jwt_handler.verify_access_token("")
+
+    def test_different_secret_fails_verification(self):
+        """不同密钥生成的 token 无法互相验证"""
+        handler1 = JWTHandler(secret_key="secret-one")
+        handler2 = JWTHandler(secret_key="secret-two")
+
+        token = handler1.create_access_token(user_id="user_001")
+
+        with pytest.raises(Exception):
+            handler2.verify_access_token(token)
+
+    def test_custom_algorithm(self):
+        """支持自定义算法"""
+        handler = JWTHandler(
+            secret_key="test-secret",
+            algorithm="HS256",
+        )
+        token = handler.create_access_token(user_id="user_001")
+        payload = handler.verify_access_token(token)
+
+        assert payload["sub"] == "user_001"
+
+    def test_default_role_is_empty_string(self, jwt_handler):
+        """不传 role 时默认为空字符串"""
+        token = jwt_handler.create_access_token(user_id="user_001")
+        payload = jwt_handler.verify_access_token(token)
+
+        assert payload.get("role", "") == ""
+
+
+class TestGlobalJWTHandler:
+    """全局 JWT handler 配置测试"""
+
+    def test_configure_creates_handler(self):
+        """configure_jwt_handler 创建并返回 handler"""
+        import packages.application.auth.jwt_handler as jwt_module
+
+        # 重置全局状态
+        jwt_module._default_handler = None
+
+        handler = configure_jwt_handler(
+            secret_key="global-secret",
+            access_token_expire_minutes=60,
+        )
+
+        assert isinstance(handler, JWTHandler)
+        assert get_jwt_handler() is handler
+
+    def test_get_jwt_handler_without_config_raises(self):
+        """未配置时调用 get_jwt_handler 抛出 RuntimeError"""
+        import packages.application.auth.jwt_handler as jwt_module
+
+        # 重置全局状态
+        jwt_module._default_handler = None
+
+        with pytest.raises(RuntimeError, match="JWT handler not configured"):
+            get_jwt_handler()
+
+    def test_configure_overwrites_existing(self):
+        """重新配置会覆盖之前的 handler"""
+        import packages.application.auth.jwt_handler as jwt_module
+
+        jwt_module._default_handler = None
+
+        handler1 = configure_jwt_handler(secret_key="first-secret")
+        handler2 = configure_jwt_handler(secret_key="second-secret")
+
+        assert handler1 is not handler2
+        assert get_jwt_handler() is handler2

tests/unit/test_jwt_service.py

@@ -1,362 +1,264 @@
-"""
-JWT Service 单元测试
-"""
+"""JWT 服务单元测试."""
+
+from __future__ import annotations
 
 import time
-from datetime import datetime, timedelta
 
-import jwt
 import pytest
 from jwt.exceptions import ExpiredSignatureError, InvalidTokenError
 
-from packages.application.auth.jwt_service import (
-    JWTConfig,
-    JWTService,
-    TokenType,
-)
+from packages.application.auth.jwt_service import JWTConfig, JWTService, TokenType
+
+
+@pytest.fixture
+def jwt_config():
+    return JWTConfig(
+        secret_key="test-secret-key-strong-enough-123456",
+        algorithm="HS256",
+        access_token_expire_minutes=30,
+        refresh_token_expire_days=7,
+    )
+
+
+@pytest.fixture
+def jwt_service(jwt_config):
+    return JWTService(jwt_config)
 
 
 class TestJWTConfig:
-    """JWT 配置测试"""
+    """JWTConfig 测试"""
 
-    def test_config_init_success(self):
-        """测试正常初始化"""
-        config = JWTConfig(secret_key="a-very-strong-secret-key-for-testing")
-        assert config.SECRET_KEY == "a-very-strong-secret-key-for-testing"
-        assert config.ALGORITHM == "HS256"
-        assert config.ACCESS_TOKEN_EXPIRE_MINUTES == 15
-        assert config.REFRESH_TOKEN_EXPIRE_DAYS == 7
-
-    def test_config_custom_values(self):
-        """测试自定义配置值"""
-        config = JWTConfig(
-            secret_key="test-secret",
-            algorithm="HS512",
-            access_token_expire_minutes=30,
-            refresh_token_expire_days=14,
-        )
-        assert config.ALGORITHM == "HS512"
-        assert config.ACCESS_TOKEN_EXPIRE_MINUTES == 30
-        assert config.REFRESH_TOKEN_EXPIRE_DAYS == 14
-
-    def test_config_empty_secret_raises(self):
-        """测试空密钥报错"""
-        with pytest.raises(ValueError, match="secret_key must be provided"):
+    def test_empty_secret_raises(self):
+        """空 secret_key 抛出 ValueError"""
+        with pytest.raises(ValueError, match="must be provided"):
             JWTConfig(secret_key="")
 
-    def test_config_whitespace_secret_raises(self):
-        """测试全空格密钥报错"""
-        with pytest.raises(ValueError, match="secret_key must be provided"):
+    def test_whitespace_secret_raises(self):
+        """纯空白 secret_key 抛出 ValueError"""
+        with pytest.raises(ValueError, match="must be provided"):
             JWTConfig(secret_key="   ")
 
-    def test_config_insecure_default_secret_raises(self):
-        """测试不安全的默认密钥报错"""
-        insecure_keys = [
+    def test_insecure_default_secret_raises(self):
+        """不安全的默认 secret 抛出 ValueError"""
+        insecure_secrets = [
             "your-secret-key-change-in-production",
             "your-secret-key",
             "secret",
             "changeme",
             "password",
-            "YOUR-SECRET-KEY",
-            "Secret",
+            "SECRET",
         ]
-        for key in insecure_keys:
+        for secret in insecure_secrets:
             with pytest.raises(ValueError, match="insecure"):
-                JWTConfig(secret_key=key)
+                JWTConfig(secret_key=secret)
 
+    def test_strong_secret_accepted(self):
+        """强 secret 可以正常创建"""
+        config = JWTConfig(secret_key="my-strong-secret-key-1234567890")
+        assert config.SECRET_KEY == "my-strong-secret-key-1234567890"
 
-class TestJWTService:
-    """JWT 服务测试"""
+    def test_default_values(self):
+        """默认配置值正确"""
+        config = JWTConfig(secret_key="test-secret-12345")
+        assert config.ALGORITHM == "HS256"
+        assert config.ACCESS_TOKEN_EXPIRE_MINUTES == 15
+        assert config.REFRESH_TOKEN_EXPIRE_DAYS == 7
 
-    @pytest.fixture
-    def config(self):
-        return JWTConfig(
-            secret_key="test-secret-key-for-jwt-unit-tests-12345",
-            algorithm="HS256",
-            access_token_expire_minutes=30,
-            refresh_token_expire_days=7,
+    def test_custom_expiry_values(self):
+        """自定义过期时间"""
+        config = JWTConfig(
+            secret_key="test-secret-12345",
+            access_token_expire_minutes=60,
+            refresh_token_expire_days=30,
         )
+        assert config.ACCESS_TOKEN_EXPIRE_MINUTES == 60
+        assert config.REFRESH_TOKEN_EXPIRE_DAYS == 30
 
-    @pytest.fixture
-    def service(self, config):
-        return JWTService(config=config)
 
-    def test_service_init_without_config_raises(self):
-        """测试无 config 初始化报错"""
+class TestTokenType:
+    """TokenType 测试"""
+
+    def test_access_token_type(self):
+        """access token 类型值"""
+        assert TokenType.ACCESS == "access"
+
+    def test_refresh_token_type(self):
+        """refresh token 类型值"""
+        assert TokenType.REFRESH == "refresh"
+
+
+class TestJWTServiceInit:
+    """JWTService 初始化测试"""
+
+    def test_none_config_raises(self):
+        """不传 config 抛出 ValueError"""
         with pytest.raises(ValueError, match="requires a JWTConfig"):
-            JWTService(config=None)
+            JWTService(None)
 
-    # --- create_access_token ---
+    def test_with_config_creates_service(self, jwt_config):
+        """传入 config 正常创建"""
+        service = JWTService(jwt_config)
+        assert service.config is jwt_config
 
-    def test_create_access_token_success(self, service):
-        """测试创建 access token 成功"""
-        token = service.create_access_token(user_id="user-123")
+
+class TestCreateAccessToken:
+    """create_access_token 测试"""
+
+    def test_returns_string(self, jwt_service):
+        """返回非空字符串"""
+        token = jwt_service.create_access_token(user_id="user_001")
         assert isinstance(token, str)
         assert len(token) > 0
 
-    def test_create_access_token_contains_user_id(self, service, config):
-        """测试 access token 包含正确的 user_id"""
-        token = service.create_access_token(user_id="user-456")
-        payload = jwt.decode(token, config.SECRET_KEY, algorithms=[config.ALGORITHM])
-        assert payload["sub"] == "user-456"
+    def test_contains_user_id(self, jwt_service):
+        """payload 包含正确的 user_id（sub字段）"""
+        token = jwt_service.create_access_token(user_id="user_123")
+        payload = jwt_service.verify_token(token)
+        assert payload["sub"] == "user_123"
 
-    def test_create_access_token_has_correct_type(self, service, config):
-        """测试 access token 类型正确"""
-        token = service.create_access_token(user_id="user-123")
-        payload = jwt.decode(token, config.SECRET_KEY, algorithms=[config.ALGORITHM])
-        assert payload["type"] == TokenType.ACCESS
-
-    def test_create_access_token_contains_role(self, service, config):
-        """测试 access token 包含角色"""
-        token = service.create_access_token(user_id="user-123", role="admin")
-        payload = jwt.decode(token, config.SECRET_KEY, algorithms=[config.ALGORITHM])
+    def test_contains_role(self, jwt_service):
+        """payload 包含 role"""
+        token = jwt_service.create_access_token(user_id="user_001", role="admin")
+        payload = jwt_service.verify_token(token)
         assert payload["role"] == "admin"
 
-    def test_create_access_token_additional_claims(self, service, config):
-        """测试 access token 包含额外声明"""
-        token = service.create_access_token(
-            user_id="user-123",
-            additional_claims={"custom_field": "custom_value", "sid": "session-abc"},
+    def test_default_role_empty(self, jwt_service):
+        """不传 role 默认为空字符串"""
+        token = jwt_service.create_access_token(user_id="user_001")
+        payload = jwt_service.verify_token(token)
+        assert payload["role"] == ""
+
+    def test_token_type_is_access(self, jwt_service):
+        """access token 的 type 为 access"""
+        token = jwt_service.create_access_token(user_id="user_001")
+        payload = jwt_service.verify_token(token)
+        assert payload["type"] == TokenType.ACCESS
+
+    def test_additional_claims(self, jwt_service):
+        """额外声明被包含在 payload 中"""
+        token = jwt_service.create_access_token(
+            user_id="user_001",
+            additional_claims={"email": "test@example.com", "tenant": "t1"},
         )
-        payload = jwt.decode(token, config.SECRET_KEY, algorithms=[config.ALGORITHM])
-        assert payload["custom_field"] == "custom_value"
-        assert payload["sid"] == "session-abc"
+        payload = jwt_service.verify_token(token)
+        assert payload["email"] == "test@example.com"
+        assert payload["tenant"] == "t1"
 
-    def test_create_access_token_has_iat_and_exp(self, service, config):
-        """测试 access token 包含 iat 和 exp"""
-        before = datetime.utcnow() - timedelta(seconds=1)
-        token = service.create_access_token(user_id="user-123")
-        after = datetime.utcnow() + timedelta(seconds=1)
-
-        payload = jwt.decode(token, config.SECRET_KEY, algorithms=[config.ALGORITHM])
+    def test_has_iat_and_exp(self, jwt_service):
+        """payload 包含 iat 和 exp"""
+        token = jwt_service.create_access_token(user_id="user_001")
+        payload = jwt_service.verify_token(token)
         assert "iat" in payload
         assert "exp" in payload
+        assert payload["exp"] > payload["iat"]
 
-        iat = datetime.utcfromtimestamp(payload["iat"])
-        exp = datetime.utcfromtimestamp(payload["exp"])
+    def test_expiry_correct_duration(self, jwt_service):
+        """过期时间设置正确"""
+        token = jwt_service.create_access_token(user_id="user_001")
+        payload = jwt_service.verify_token(token)
+        # 30分钟 = 1800秒
+        duration = payload["exp"] - payload["iat"]
+        assert 1790 <= duration <= 1810  # 允许10秒误差
 
-        assert before <= iat <= after
-        assert exp > iat
-        # 过期时间约等于配置的分钟数
-        expected_expiry = timedelta(minutes=config.ACCESS_TOKEN_EXPIRE_MINUTES)
-        actual_expiry = exp - iat
-        assert abs((actual_expiry - expected_expiry).total_seconds()) < 5
 
-    # --- create_refresh_token ---
+class TestCreateRefreshToken:
+    """create_refresh_token 测试"""
 
-    def test_create_refresh_token_success(self, service):
-        """测试创建 refresh token 成功"""
-        token = service.create_refresh_token(user_id="user-123", session_id="sess-abc")
+    def test_returns_string(self, jwt_service):
+        """返回非空字符串"""
+        token = jwt_service.create_refresh_token(user_id="user_001", session_id="sess_001")
         assert isinstance(token, str)
         assert len(token) > 0
 
-    def test_create_refresh_token_contains_correct_data(self, service, config):
-        """测试 refresh token 包含正确数据"""
-        token = service.create_refresh_token(user_id="user-789", session_id="sess-xyz")
-        payload = jwt.decode(token, config.SECRET_KEY, algorithms=[config.ALGORITHM])
-        assert payload["sub"] == "user-789"
-        assert payload["session_id"] == "sess-xyz"
+    def test_contains_user_and_session(self, jwt_service):
+        """包含 user_id 和 session_id"""
+        token = jwt_service.create_refresh_token(user_id="user_123", session_id="sess_456")
+        payload = jwt_service.verify_token(token)
+        assert payload["sub"] == "user_123"
+        assert payload["session_id"] == "sess_456"
+
+    def test_token_type_is_refresh(self, jwt_service):
+        """refresh token 的 type 为 refresh"""
+        token = jwt_service.create_refresh_token(user_id="user_001", session_id="s1")
+        payload = jwt_service.verify_token(token)
         assert payload["type"] == TokenType.REFRESH
 
-    def test_create_refresh_token_expiry(self, service, config):
-        """测试 refresh token 过期时间正确"""
-        token = service.create_refresh_token(user_id="user-123", session_id="sess-abc")
-        payload = jwt.decode(token, config.SECRET_KEY, algorithms=[config.ALGORITHM])
 
-        iat = datetime.utcfromtimestamp(payload["iat"])
-        exp = datetime.utcfromtimestamp(payload["exp"])
-        expected_expiry = timedelta(days=config.REFRESH_TOKEN_EXPIRE_DAYS)
-        actual_expiry = exp - iat
-        assert abs((actual_expiry - expected_expiry).total_seconds()) < 5
+class TestVerifyToken:
+    """verify_token 测试"""
 
-    # --- verify_token ---
+    def test_valid_token(self, jwt_service):
+        """有效 token 验证通过"""
+        token = jwt_service.create_access_token(user_id="u1")
+        payload = jwt_service.verify_token(token)
+        assert payload["sub"] == "u1"
 
-    def test_verify_valid_token(self, service):
-        """测试验证有效 token"""
-        token = service.create_access_token(user_id="user-123")
-        payload = service.verify_token(token)
-        assert payload["sub"] == "user-123"
-
-    def test_verify_expired_token_raises(self, service, config):
-        """测试验证过期 token 报错"""
-        # 创建一个已经过期的 token
-        payload = {
-            "sub": "user-123",
-            "type": TokenType.ACCESS,
-            "iat": datetime.utcnow() - timedelta(hours=1),
-            "exp": datetime.utcnow() - timedelta(minutes=30),
-        }
-        expired_token = jwt.encode(payload, config.SECRET_KEY, algorithm=config.ALGORITHM)
-
-        with pytest.raises(ExpiredSignatureError, match="expired"):
-            service.verify_token(expired_token)
-
-    def test_verify_invalid_token_raises(self, service):
-        """测试验证无效 token 报错"""
+    def test_invalid_token_raises(self, jwt_service):
+        """无效 token 抛出 InvalidTokenError"""
         with pytest.raises(InvalidTokenError):
-            service.verify_token("this-is-not-a-valid-jwt-token")
-
-    def test_verify_token_with_wrong_secret_raises(self, service, config):
-        """测试用错误密钥签发的 token 验证失败"""
-        wrong_config = JWTConfig(secret_key="different-secret-key")
-        wrong_service = JWTService(config=wrong_config)
-        token = wrong_service.create_access_token(user_id="user-123")
+            jwt_service.verify_token("not.a.valid.token")
 
+    def test_empty_token_raises(self, jwt_service):
+        """空字符串 token 抛出异常"""
         with pytest.raises(InvalidTokenError):
-            service.verify_token(token)
+            jwt_service.verify_token("")
 
-    # --- verify_access_token ---
+    def test_wrong_secret_fails(self, jwt_config):
+        """不同密钥的 token 无法验证"""
+        service1 = JWTService(JWTConfig(secret_key="secret-one-123456"))
+        service2 = JWTService(JWTConfig(secret_key="secret-two-1234567"))
 
-    def test_verify_access_token_success(self, service):
-        """测试验证有效的 access token"""
-        token = service.create_access_token(user_id="user-123", role="user")
-        payload = service.verify_access_token(token)
-        assert payload["sub"] == "user-123"
-        assert payload["type"] == TokenType.ACCESS
+        token = service1.create_access_token(user_id="u1")
+        with pytest.raises(InvalidTokenError):
+            service2.verify_token(token)
 
-    def test_verify_access_token_with_refresh_token_raises(self, service):
-        """测试用 refresh token 调用 verify_access_token 报错"""
-        refresh_token = service.create_refresh_token(user_id="user-123", session_id="sess-abc")
 
+class TestVerifyAccessToken:
+    """verify_access_token 测试"""
+
+    def test_valid_access_token(self, jwt_service):
+        """有效 access token 验证通过"""
+        token = jwt_service.create_access_token(user_id="u1")
+        payload = jwt_service.verify_access_token(token)
+        assert payload["sub"] == "u1"
+
+    def test_refresh_token_fails(self, jwt_service):
+        """refresh token 不能当 access token 用"""
+        token = jwt_service.create_refresh_token(user_id="u1", session_id="s1")
         with pytest.raises(ValueError, match="Token type must be 'access'"):
-            service.verify_access_token(refresh_token)
+            jwt_service.verify_access_token(token)
 
-    # --- verify_refresh_token ---
 
-    def test_verify_refresh_token_success(self, service):
-        """测试验证有效的 refresh token"""
-        token = service.create_refresh_token(user_id="user-123", session_id="sess-abc")
-        payload = service.verify_refresh_token(token)
-        assert payload["sub"] == "user-123"
-        assert payload["session_id"] == "sess-abc"
-        assert payload["type"] == TokenType.REFRESH
+class TestVerifyRefreshToken:
+    """verify_refresh_token 测试"""
 
-    def test_verify_refresh_token_with_access_token_raises(self, service):
-        """测试用 access token 调用 verify_refresh_token 报错"""
-        access_token = service.create_access_token(user_id="user-123")
+    def test_valid_refresh_token(self, jwt_service):
+        """有效 refresh token 验证通过"""
+        token = jwt_service.create_refresh_token(user_id="u1", session_id="s1")
+        payload = jwt_service.verify_refresh_token(token)
+        assert payload["sub"] == "u1"
+        assert payload["session_id"] == "s1"
 
+    def test_access_token_fails(self, jwt_service):
+        """access token 不能当 refresh token 用"""
+        token = jwt_service.create_access_token(user_id="u1")
         with pytest.raises(ValueError, match="Token type must be 'refresh'"):
-            service.verify_refresh_token(access_token)
-
-    def test_access_and_refresh_tokens_are_different(self, service):
-        """测试 access token 和 refresh token 不相同"""
-        access = service.create_access_token(user_id="user-123")
-        refresh = service.create_refresh_token(user_id="user-123", session_id="sess-abc")
-        assert access != refresh
+            jwt_service.verify_refresh_token(token)
 
 
-class TestJWTHandler:
-    """JWT Handler 委托层测试"""
+class TestExpiredToken:
+    """过期 token 测试"""
 
-    def test_create_access_token(self):
-        """测试创建 access token"""
-        from packages.application.auth.jwt_handler import JWTHandler
-
-        handler = JWTHandler(secret_key="test-secret-key")
-        token = handler.create_access_token(user_id="user-123", role="admin")
-        assert token is not None
-        assert len(token) > 20
-
-        # 验证token内容
-        payload = jwt.decode(token, "test-secret-key", algorithms=["HS256"])
-        assert payload["sub"] == "user-123"
-        assert payload["role"] == "admin"
-        assert payload["type"] == "access"
-
-    def test_create_access_token_with_additional_claims(self):
-        """测试带额外声明创建 token"""
-        from packages.application.auth.jwt_handler import JWTHandler
-
-        handler = JWTHandler(secret_key="test-secret-key")
-        token = handler.create_access_token(
-            user_id="user-456",
-            additional_claims={"custom_field": "custom_value"},
+    def test_expired_access_token_raises(self):
+        """过期 token 验证抛出 ExpiredSignatureError"""
+        config = JWTConfig(
+            secret_key="test-secret-12345",
+            access_token_expire_minutes=-1,  # 立即过期
         )
+        service = JWTService(config)
+        token = service.create_access_token(user_id="u1")
 
-        payload = jwt.decode(token, "test-secret-key", algorithms=["HS256"])
-        assert payload["sub"] == "user-456"
-        assert payload["custom_field"] == "custom_value"
-
-    def test_verify_access_token(self):
-        """测试验证 access token"""
-        from packages.application.auth.jwt_handler import JWTHandler
-
-        handler = JWTHandler(secret_key="test-secret-key")
-        token = handler.create_access_token(user_id="user-123", role="user")
-        payload = handler.verify_access_token(token)
-
-        assert payload["sub"] == "user-123"
-        assert payload["role"] == "user"
-        assert payload["type"] == "access"
-
-    def test_verify_access_token_expired(self):
-        """测试验证过期的 access token"""
-        from packages.application.auth.jwt_handler import JWTHandler
-
-        handler = JWTHandler(secret_key="test-secret-key", access_token_expire_minutes=0)
-        token = handler.create_access_token(user_id="user-123")
-
-        time.sleep(1)  # 确保过期
+        time.sleep(0.1)
 
         with pytest.raises(ExpiredSignatureError):
-            handler.verify_access_token(token)
-
-    def test_verify_token(self):
-        """测试验证任意类型 token"""
-        from packages.application.auth.jwt_handler import JWTHandler
-
-        handler = JWTHandler(secret_key="test-secret-key")
-        token = handler.create_access_token(user_id="user-123")
-        payload = handler.verify_token(token)
-
-        assert payload["sub"] == "user-123"
-
-    def test_verify_invalid_token(self):
-        """测试验证无效 token"""
-        from packages.application.auth.jwt_handler import JWTHandler
-
-        handler = JWTHandler(secret_key="test-secret-key")
-        with pytest.raises(InvalidTokenError):
-            handler.verify_token("invalid.token.here")
-
-    def test_configure_and_get_default_handler(self):
-        """测试配置和获取全局默认 handler"""
-        from packages.application.auth import jwt_handler as handler_module
-        from packages.application.auth.jwt_handler import (
-            configure_jwt_handler,
-            get_jwt_handler,
-        )
-
-        # 重置全局状态
-        handler_module._default_handler = None
-
-        # 配置
-        handler = configure_jwt_handler(
-            secret_key="global-secret",
-            algorithm="HS256",
-            access_token_expire_minutes=60,
-        )
-        assert handler is not None
-
-        # 获取
-        same_handler = get_jwt_handler()
-        assert same_handler is handler
-
-        # 验证能正常工作
-        token = same_handler.create_access_token(user_id="global-user")
-        payload = jwt.decode(token, "global-secret", algorithms=["HS256"])
-        assert payload["sub"] == "global-user"
-
-        # 重置全局状态，避免影响其他测试
-        handler_module._default_handler = None
-
-    def test_get_jwt_handler_not_configured(self):
-        """测试未配置时获取 handler 抛出异常"""
-        from packages.application.auth import jwt_handler as handler_module
-        from packages.application.auth.jwt_handler import get_jwt_handler
-
-        # 确保未配置
-        handler_module._default_handler = None
-
-        with pytest.raises(RuntimeError, match="JWT handler not configured"):
-            get_jwt_handler()
+            service.verify_access_token(token)

tests/unit/test_pagination.py

@@ -1,12 +1,6 @@
-"""
-pagination 通用分页器单元测试
+"""通用分页器单元测试."""
 
-覆盖：
-- PaginationParams: 默认值/边界/校验/offset/limit
-- PaginationMeta: from_params 各种边界场景
-- PaginatedResponse: create 工厂方法
-- paginate: 内存分页函数
-"""
+from __future__ import annotations
 
 import pytest
 from pydantic import ValidationError
@@ -18,320 +12,233 @@ from packages.application.common.pagination import (
     paginate,
 )
 
-# ============================================================
-# PaginationParams
-# ============================================================
 
+class TestPaginationParams:
+    """PaginationParams 测试"""
 
-class TestPaginationParamsDefaults:
-    """默认值测试"""
-
-    def test_default_page_is_1(self):
+    def test_default_values(self):
+        """默认值正确"""
         params = PaginationParams()
         assert params.page == 1
-
-    def test_default_page_size_is_20(self):
-        params = PaginationParams()
         assert params.page_size == 20
 
-    def test_default_offset_is_0(self):
-        params = PaginationParams()
+    def test_offset_first_page(self):
+        """第一页 offset 为 0"""
+        params = PaginationParams(page=1, page_size=20)
         assert params.offset == 0
 
-    def test_default_limit_is_20(self):
-        params = PaginationParams()
-        assert params.limit == 20
+    def test_offset_second_page(self):
+        """第二页 offset 计算正确"""
+        params = PaginationParams(page=2, page_size=20)
+        assert params.offset == 20
 
+    def test_offset_custom_page_size(self):
+        """自定义 page_size 的 offset"""
+        params = PaginationParams(page=3, page_size=10)
+        assert params.offset == 20
 
-class TestPaginationParamsValidation:
-    """参数校验"""
+    def test_limit_equals_page_size(self):
+        """limit 等于 page_size"""
+        params = PaginationParams(page_size=50)
+        assert params.limit == 50
 
-    @pytest.mark.parametrize("page", [1, 2, 100, 9999])
-    def test_valid_page_values(self, page):
-        params = PaginationParams(page=page)
-        assert params.page == page
-
-    def test_page_zero_raises(self):
+    def test_page_must_be_at_least_1(self):
+        """page 不能小于 1"""
         with pytest.raises(ValidationError):
             PaginationParams(page=0)
 
     def test_page_negative_raises(self):
+        """page 不能为负数"""
         with pytest.raises(ValidationError):
             PaginationParams(page=-1)
 
-    @pytest.mark.parametrize("page_size", [1, 20, 50, 100])
-    def test_valid_page_size_values(self, page_size):
-        params = PaginationParams(page_size=page_size)
-        assert params.page_size == page_size
-
-    def test_page_size_zero_raises(self):
+    def test_page_size_must_be_at_least_1(self):
+        """page_size 不能小于 1"""
         with pytest.raises(ValidationError):
             PaginationParams(page_size=0)
 
-    def test_page_size_negative_raises(self):
-        with pytest.raises(ValidationError):
-            PaginationParams(page_size=-5)
-
-    def test_page_size_over_100_raises(self):
+    def test_page_size_max_100(self):
+        """page_size 最大 100"""
         with pytest.raises(ValidationError):
             PaginationParams(page_size=101)
 
-    def test_invalid_page_type_raises(self):
-        with pytest.raises(ValidationError):
-            PaginationParams(page="abc")
-
-    def test_invalid_page_size_type_raises(self):
-        with pytest.raises(ValidationError):
-            PaginationParams(page_size="abc")
-
-
-class TestPaginationParamsOffset:
-    """offset 属性计算"""
-
-    def test_page_1_offset_0(self):
-        params = PaginationParams(page=1, page_size=20)
-        assert params.offset == 0
-
-    def test_page_2_offset_page_size(self):
-        params = PaginationParams(page=2, page_size=20)
-        assert params.offset == 20
-
-    def test_page_3_offset_2x_page_size(self):
-        params = PaginationParams(page=3, page_size=20)
-        assert params.offset == 40
-
-    def test_page_5_page_size_10_offset_40(self):
-        params = PaginationParams(page=5, page_size=10)
-        assert params.offset == 40
-
-    def test_page_1_page_size_100_offset_0(self):
-        params = PaginationParams(page=1, page_size=100)
-        assert params.offset == 0
-
-
-class TestPaginationParamsLimit:
-    """limit 属性"""
-
-    def test_limit_equals_page_size(self):
-        params = PaginationParams(page_size=20)
-        assert params.limit == 20
-
-    def test_limit_1(self):
-        params = PaginationParams(page_size=1)
-        assert params.limit == 1
-
-    def test_limit_100(self):
+    def test_page_size_100_is_valid(self):
+        """page_size=100 是合法的"""
         params = PaginationParams(page_size=100)
-        assert params.limit == 100
+        assert params.page_size == 100
 
 
-# ============================================================
-# PaginationMeta.from_params
-# ============================================================
+class TestPaginationMeta:
+    """PaginationMeta 测试"""
 
+    def test_from_params_first_page(self):
+        """第一页元数据"""
+        params = PaginationParams(page=1, page_size=10)
+        meta = PaginationMeta.from_params(params, total=25)
 
-class TestPaginationMetaFromParams:
-    """from_params 工厂方法"""
+        assert meta.page == 1
+        assert meta.page_size == 10
+        assert meta.total == 25
+        assert meta.total_pages == 3
+        assert meta.has_next is True
+        assert meta.has_prev is False
 
-    def test_empty_total_zero(self):
+    def test_from_params_last_page(self):
+        """最后一页元数据"""
+        params = PaginationParams(page=3, page_size=10)
+        meta = PaginationMeta.from_params(params, total=25)
+
+        assert meta.page == 3
+        assert meta.total_pages == 3
+        assert meta.has_next is False
+        assert meta.has_prev is True
+
+    def test_from_params_middle_page(self):
+        """中间页元数据"""
+        params = PaginationParams(page=2, page_size=10)
+        meta = PaginationMeta.from_params(params, total=50)
+
+        assert meta.page == 2
+        assert meta.total_pages == 5
+        assert meta.has_next is True
+        assert meta.has_prev is True
+
+    def test_from_params_zero_total(self):
+        """总数为 0 时"""
         params = PaginationParams(page=1, page_size=20)
         meta = PaginationMeta.from_params(params, total=0)
+
         assert meta.total == 0
         assert meta.total_pages == 0
         assert meta.has_next is False
         assert meta.has_prev is False
 
-    def test_exactly_one_page(self):
-        params = PaginationParams(page=1, page_size=20)
-        meta = PaginationMeta.from_params(params, total=20)
+    def test_from_params_exact_multiple(self):
+        """总数刚好是 page_size 的整数倍"""
+        params = PaginationParams(page=1, page_size=10)
+        meta = PaginationMeta.from_params(params, total=30)
+
+        assert meta.total_pages == 3
+
+    def test_from_params_single_page(self):
+        """单页即可放下所有数据"""
+        params = PaginationParams(page=1, page_size=100)
+        meta = PaginationMeta.from_params(params, total=50)
+
         assert meta.total_pages == 1
         assert meta.has_next is False
         assert meta.has_prev is False
 
-    def test_less_than_one_page(self):
-        params = PaginationParams(page=1, page_size=20)
-        meta = PaginationMeta.from_params(params, total=15)
-        assert meta.total_pages == 1
-        assert meta.has_next is False
-        assert meta.has_prev is False
 
-    def test_multiple_pages_first_page(self):
-        params = PaginationParams(page=1, page_size=20)
-        meta = PaginationMeta.from_params(params, total=50)
-        assert meta.total_pages == 3
-        assert meta.has_next is True
-        assert meta.has_prev is False
+class TestPaginatedResponse:
+    """PaginatedResponse 测试"""
 
-    def test_multiple_pages_middle_page(self):
-        params = PaginationParams(page=2, page_size=20)
-        meta = PaginationMeta.from_params(params, total=50)
-        assert meta.total_pages == 3
-        assert meta.has_next is True
-        assert meta.has_prev is True
-
-    def test_multiple_pages_last_page(self):
-        params = PaginationParams(page=3, page_size=20)
-        meta = PaginationMeta.from_params(params, total=50)
-        assert meta.total_pages == 3
-        assert meta.has_next is False
-        assert meta.has_prev is True
-
-    def test_exact_division(self):
-        params = PaginationParams(page=2, page_size=20)
-        meta = PaginationMeta.from_params(params, total=40)
-        assert meta.total_pages == 2
-        assert meta.has_next is False
-        assert meta.has_prev is True
-
-    def test_non_exact_division_ceil(self):
-        params = PaginationParams(page=1, page_size=20)
-        meta = PaginationMeta.from_params(params, total=41)
-        assert meta.total_pages == 3
-
-    def test_total_1_page_size_20(self):
-        params = PaginationParams(page=1, page_size=20)
-        meta = PaginationMeta.from_params(params, total=1)
-        assert meta.total_pages == 1
-        assert meta.has_next is False
-        assert meta.has_prev is False
-
-    def test_page_beyond_total_pages(self):
-        params = PaginationParams(page=10, page_size=20)
-        meta = PaginationMeta.from_params(params, total=50)
-        assert meta.total_pages == 3
-        assert meta.has_next is False
-        assert meta.has_prev is True
-
-    def test_preserves_params_values(self):
-        params = PaginationParams(page=3, page_size=15)
-        meta = PaginationMeta.from_params(params, total=100)
-        assert meta.page == 3
-        assert meta.page_size == 15
-        assert meta.total == 100
-
-
-# ============================================================
-# PaginatedResponse.create
-# ============================================================
-
-
-class TestPaginatedResponseCreate:
-    """create 工厂方法"""
-
-    def test_create_with_data(self):
-        params = PaginationParams(page=1, page_size=20)
+    def test_create_success(self):
+        """创建分页响应"""
+        params = PaginationParams(page=1, page_size=10)
         data = [1, 2, 3]
-        response = PaginatedResponse.create(data, params, total=100)
-        assert response.data == data
-        assert response.pagination.total == 100
-        assert response.pagination.page == 1
-        assert response.pagination.page_size == 20
 
-    def test_create_with_empty_data(self):
+        response = PaginatedResponse.create(data, params, total=25)
+
+        assert response.data == [1, 2, 3]
+        assert response.pagination.page == 1
+        assert response.pagination.total == 25
+        assert response.pagination.total_pages == 3
+
+    def test_create_empty_data(self):
+        """空数据分页响应"""
         params = PaginationParams(page=1, page_size=20)
         response = PaginatedResponse.create([], params, total=0)
+
         assert response.data == []
         assert response.pagination.total == 0
         assert response.pagination.total_pages == 0
 
-    def test_create_preserves_list_type(self):
-        params = PaginationParams(page=1, page_size=20)
-        data = ["a", "b", "c"]
-        response = PaginatedResponse.create(data, params, total=10)
-        assert response.data == ["a", "b", "c"]
-        assert len(response.data) == 3
-
-
-# ============================================================
-# paginate 函数
-# ============================================================
-
 
 class TestPaginateFunction:
-    """内存分页函数"""
-
-    def test_empty_list(self):
-        params = PaginationParams(page=1, page_size=20)
-        result = paginate([], params)
-        assert result.data == []
-        assert result.pagination.total == 0
-        assert result.pagination.total_pages == 0
+    """paginate 函数测试（内存分页）"""
 
     def test_first_page(self):
-        items = list(range(50))
-        params = PaginationParams(page=1, page_size=20)
+        """第一页分页"""
+        items = list(range(30))
+        params = PaginationParams(page=1, page_size=10)
+
         result = paginate(items, params)
-        assert result.data == list(range(20))
-        assert result.pagination.total == 50
+
+        assert result.data == list(range(10))
+        assert result.pagination.total == 30
         assert result.pagination.total_pages == 3
         assert result.pagination.has_next is True
         assert result.pagination.has_prev is False
 
-    def test_middle_page(self):
-        items = list(range(50))
-        params = PaginationParams(page=2, page_size=20)
+    def test_second_page(self):
+        """第二页分页"""
+        items = list(range(30))
+        params = PaginationParams(page=2, page_size=10)
+
         result = paginate(items, params)
-        assert result.data == list(range(20, 40))
-        assert result.pagination.has_next is True
-        assert result.pagination.has_prev is True
+
+        assert result.data == list(range(10, 20))
+        assert result.pagination.page == 2
 
     def test_last_page(self):
-        items = list(range(50))
-        params = PaginationParams(page=3, page_size=20)
+        """最后一页分页"""
+        items = list(range(25))
+        params = PaginationParams(page=3, page_size=10)
+
         result = paginate(items, params)
-        assert result.data == list(range(40, 50))
-        assert len(result.data) == 10
+
+        assert result.data == list(range(20, 25))
+        assert len(result.data) == 5
         assert result.pagination.has_next is False
-        assert result.pagination.has_prev is True
+
+    def test_empty_list(self):
+        """空列表分页"""
+        params = PaginationParams(page=1, page_size=20)
+        result = paginate([], params)
+
+        assert result.data == []
+        assert result.pagination.total == 0
+        assert result.pagination.total_pages == 0
 
     def test_page_beyond_total(self):
-        items = list(range(25))
-        params = PaginationParams(page=10, page_size=20)
-        result = paginate(items, params)
-        assert result.data == []
-        assert result.pagination.total == 25
-        assert result.pagination.total_pages == 2
-
-    def test_page_size_larger_than_total(self):
+        """页码超出总数"""
         items = list(range(5))
-        params = PaginationParams(page=1, page_size=20)
+        params = PaginationParams(page=10, page_size=10)
+
         result = paginate(items, params)
-        assert result.data == items
+
+        assert result.data == []
+        assert result.pagination.total == 5
         assert result.pagination.total_pages == 1
-        assert result.pagination.has_next is False
+
+    def test_custom_page_size(self):
+        """自定义每页数量"""
+        items = list(range(100))
+        params = PaginationParams(page=1, page_size=50)
+
+        result = paginate(items, params)
+
+        assert len(result.data) == 50
+        assert result.pagination.total_pages == 2
 
     def test_single_item(self):
-        items = [42]
-        params = PaginationParams(page=1, page_size=20)
+        """单条数据"""
+        items = ["only_one"]
+        params = PaginationParams(page=1, page_size=10)
+
         result = paginate(items, params)
-        assert result.data == [42]
+
+        assert result.data == ["only_one"]
         assert result.pagination.total == 1
+        assert result.pagination.total_pages == 1
+
+    def test_generic_type_preserved(self):
+        """泛型类型数据正确"""
+        items = [{"id": 1, "name": "a"}, {"id": 2, "name": "b"}]
+        params = PaginationParams(page=1, page_size=10)
 
-    def test_page_size_1(self):
-        items = list(range(5))
-        params = PaginationParams(page=3, page_size=1)
         result = paginate(items, params)
-        assert result.data == [2]
-        assert result.pagination.total_pages == 5
 
-    def test_exact_page_size(self):
-        items = list(range(40))
-        params = PaginationParams(page=2, page_size=20)
-        result = paginate(items, params)
-        assert result.data == list(range(20, 40))
-        assert result.pagination.total_pages == 2
-        assert result.pagination.has_next is False
-
-    def test_string_items(self):
-        items = ["a", "b", "c", "d", "e"]
-        params = PaginationParams(page=2, page_size=2)
-        result = paginate(items, params)
-        assert result.data == ["c", "d"]
-        assert result.pagination.total == 5
-
-    def test_does_not_mutate_original_list(self):
-        items = list(range(10))
-        original = items.copy()
-        params = PaginationParams(page=1, page_size=3)
-        paginate(items, params)
-        assert items == original
+        assert len(result.data) == 2
+        assert result.data[0]["id"] == 1

tests/unit/test_password_handler.py

@@ -0,0 +1,175 @@
+"""Password Handler 单元测试."""
+
+from __future__ import annotations
+
+import pytest
+
+from packages.application.auth.password_handler import (
+    PasswordHandler,
+    configure_password_handler,
+    get_password_handler,
+)
+
+
+@pytest.fixture
+def password_handler():
+    return PasswordHandler(rounds=4)  # 用低rounds加速测试
+
+
+class TestPasswordHandler:
+    """PasswordHandler 测试"""
+
+    def test_hash_password_returns_string(self, password_handler):
+        """哈希密码返回非空字符串"""
+        hashed = password_handler.hash_password("MyP@ssw0rd!")
+
+        assert isinstance(hashed, str)
+        assert len(hashed) > 0
+        assert hashed != "MyP@ssw0rd!"
+
+    def test_hash_password_different_each_time(self, password_handler):
+        """同一密码每次哈希结果不同（加盐）"""
+        h1 = password_handler.hash_password("TestPass123")
+        h2 = password_handler.hash_password("TestPass123")
+
+        assert h1 != h2
+
+    def test_verify_password_correct(self, password_handler):
+        """正确密码验证通过"""
+        hashed = password_handler.hash_password("CorrectPass1!")
+        assert password_handler.verify_password("CorrectPass1!", hashed) is True
+
+    def test_verify_password_wrong(self, password_handler):
+        """错误密码验证失败"""
+        hashed = password_handler.hash_password("RightPass1!")
+        assert password_handler.verify_password("WrongPass1!", hashed) is False
+
+    def test_verify_password_empty_string(self, password_handler):
+        """空字符串密码也能正确验证（不匹配）"""
+        hashed = password_handler.hash_password("SomePass1!")
+        assert password_handler.verify_password("", hashed) is False
+
+    def test_hash_empty_password_raises(self, password_handler):
+        """空密码哈希抛出 ValueError"""
+        with pytest.raises(ValueError):
+            password_handler.hash_password("")
+
+    def test_needs_rehash_with_different_rounds(self):
+        """不同 rounds 的哈希需要重新计算"""
+        handler_low = PasswordHandler(rounds=4)
+        handler_high = PasswordHandler(rounds=5)
+
+        hashed = handler_low.hash_password("TestPass1!")
+        assert handler_low.needs_rehash(hashed) is False
+        assert handler_high.needs_rehash(hashed) is True
+
+    def test_validate_strength_strong_password(self, password_handler):
+        """强密码通过强度验证"""
+        valid, error = password_handler.validate_strength("Str0ngP@ss!")
+
+        assert valid is True
+        assert error is None
+
+    def test_validate_strength_too_short(self, password_handler):
+        """密码太短不通过"""
+        valid, error = password_handler.validate_strength("Sh0rt!")
+
+        assert valid is False
+        assert error is not None
+        assert "长度" in error or "length" in error.lower() or "8" in error
+
+    def test_validate_strength_no_uppercase(self, password_handler):
+        """没有大写字母不通过"""
+        valid, error = password_handler.validate_strength("lowercase1!")
+
+        assert valid is False
+        assert error is not None
+
+    def test_validate_strength_no_lowercase(self, password_handler):
+        """没有小写字母不通过"""
+        valid, error = password_handler.validate_strength("UPPERCASE1!")
+
+        assert valid is False
+        assert error is not None
+
+    def test_validate_strength_no_digit(self, password_handler):
+        """没有数字不通过"""
+        valid, error = password_handler.validate_strength("NoDigitPass!")
+
+        assert valid is False
+        assert error is not None
+
+    def test_validate_strength_special_not_required(self, password_handler):
+        """默认不要求特殊字符"""
+        valid, error = password_handler.validate_strength("NoSpecial1")
+
+        # 没有特殊字符也应该通过（require_special=False）
+        assert valid is True
+        assert error is None
+
+    def test_validate_strength_empty_string(self, password_handler):
+        """空字符串验证失败"""
+        valid, error = password_handler.validate_strength("")
+
+        assert valid is False
+        assert error is not None
+
+    def test_hash_and_verify_roundtrip(self, password_handler):
+        """哈希-验证完整往返"""
+        passwords = [
+            "Simple12",
+            "C0mpl3x!Pass",
+            "12345678aA",
+            "user@example.com1",
+        ]
+        for pwd in passwords:
+            hashed = password_handler.hash_password(pwd)
+            assert password_handler.verify_password(pwd, hashed)
+            assert not password_handler.verify_password(pwd + "x", hashed)
+
+
+class TestGlobalPasswordHandler:
+    """全局密码处理器配置测试"""
+
+    def test_get_password_handler_default(self):
+        """未配置时 get_password_handler 返回默认实例"""
+        import packages.application.auth.password_handler as pw_module
+
+        pw_module._default_handler = None
+
+        handler = get_password_handler()
+        assert isinstance(handler, PasswordHandler)
+
+    def test_configure_creates_handler(self):
+        """configure_password_handler 创建并返回 handler"""
+        import packages.application.auth.password_handler as pw_module
+
+        pw_module._default_handler = None
+
+        handler = configure_password_handler(rounds=4)
+
+        assert isinstance(handler, PasswordHandler)
+        assert get_password_handler() is handler
+
+    def test_configure_overwrites_existing(self):
+        """重新配置会覆盖之前的 handler"""
+        import packages.application.auth.password_handler as pw_module
+
+        pw_module._default_handler = None
+
+        handler1 = configure_password_handler(rounds=4)
+        handler2 = configure_password_handler(rounds=5)
+
+        assert handler1 is not handler2
+        assert get_password_handler() is handler2
+
+    def test_get_password_handler_lazy_init(self):
+        """未配置时首次调用 get_password_handler 会懒初始化"""
+        import packages.application.auth.password_handler as pw_module
+
+        pw_module._default_handler = None
+
+        assert pw_module._default_handler is None
+        handler = get_password_handler()
+        assert pw_module._default_handler is not None
+        assert pw_module._default_handler is handler

tests/unit/test_password_hasher.py

@@ -1,269 +1,250 @@
-"""
-密码哈希工具测试
-"""
+"""密码哈希与验证器单元测试."""
+
+from __future__ import annotations
 
 import pytest
 
-from packages.application.auth.password_hasher import PasswordHasher, PasswordValidator
+from packages.application.auth.password_hasher import (
+    PasswordHasher,
+    PasswordValidator,
+    password_hasher,
+    password_validator,
+)
 
 
 class TestPasswordHasher:
-    """密码哈希测试"""
+    """PasswordHasher 测试"""
 
-    @pytest.fixture
-    def hasher(self):
-        """创建密码哈希器"""
-        return PasswordHasher(rounds=4)  # 测试用低 cost，加快速度
-
-    def test_hash_password(self, hasher):
-        """测试密码哈希"""
-        password = "MySecurePassword123"
-        hashed = hasher.hash_password(password)
+    def test_hash_password_returns_string(self):
+        """哈希密码返回非空字符串"""
+        hasher = PasswordHasher(rounds=4)
+        hashed = hasher.hash_password("TestPass1!")
 
         assert isinstance(hashed, str)
         assert len(hashed) > 0
-        assert hashed != password  # 哈希后不等于原文
-        assert hashed.startswith("$2b$")  # bcrypt 格式
+        assert hashed.startswith("$2")  # bcrypt hash 格式
 
-    def test_hash_same_password_different_result(self, hasher):
-        """测试相同密码每次哈希结果不同（因为 salt 不同）"""
-        password = "MySecurePassword123"
-        hash1 = hasher.hash_password(password)
-        hash2 = hasher.hash_password(password)
+    def test_hash_password_different_salts(self):
+        """相同密码每次哈希结果不同（加盐）"""
+        hasher = PasswordHasher(rounds=4)
 
-        assert hash1 != hash2  # salt 不同，哈希不同
+        h1 = hasher.hash_password("SamePass1!")
+        h2 = hasher.hash_password("SamePass1!")
 
-    def test_verify_correct_password(self, hasher):
-        """测试验证正确的密码"""
-        password = "MySecurePassword123"
-        hashed = hasher.hash_password(password)
+        assert h1 != h2
 
-        assert hasher.verify_password(password, hashed) is True
+    def test_verify_correct_password(self):
+        """正确密码验证通过"""
+        hasher = PasswordHasher(rounds=4)
+        hashed = hasher.hash_password("Correct1!")
 
-    def test_verify_incorrect_password(self, hasher):
-        """测试验证错误的密码"""
-        password = "MySecurePassword123"
-        hashed = hasher.hash_password(password)
+        assert hasher.verify_password("Correct1!", hashed) is True
 
-        assert hasher.verify_password("WrongPassword", hashed) is False
+    def test_verify_wrong_password(self):
+        """错误密码验证失败"""
+        hasher = PasswordHasher(rounds=4)
+        hashed = hasher.hash_password("Right123!")
 
-    def test_verify_empty_password(self, hasher):
-        """测试空密码验证"""
-        hashed = hasher.hash_password("test")
+        assert hasher.verify_password("Wrong123!", hashed) is False
 
-        assert hasher.verify_password("", hashed) is False
+    def test_hash_empty_password_raises(self):
+        """空密码哈希抛出 ValueError"""
+        hasher = PasswordHasher(rounds=4)
 
-    def test_verify_empty_hash(self, hasher):
-        """测试空哈希验证"""
-        assert hasher.verify_password("test", "") is False
-
-    def test_verify_invalid_hash(self, hasher):
-        """测试无效的哈希"""
-        assert hasher.verify_password("test", "invalid-hash") is False
-
-    def test_hash_empty_password(self, hasher):
-        """测试哈希空密码应该失败"""
         with pytest.raises(ValueError, match="Password cannot be empty"):
             hasher.hash_password("")
 
-    def test_invalid_rounds(self):
-        """测试无效的 rounds 参数"""
+    def test_verify_empty_password_returns_false(self):
+        """空密码验证返回 False"""
+        hasher = PasswordHasher(rounds=4)
+        hashed = hasher.hash_password("TestPass1!")
+
+        assert hasher.verify_password("", hashed) is False
+
+    def test_verify_empty_hash_returns_false(self):
+        """空哈希验证返回 False"""
+        hasher = PasswordHasher(rounds=4)
+
+        assert hasher.verify_password("TestPass1!", "") is False
+
+    def test_verify_invalid_hash_format(self):
+        """无效格式的哈希验证返回 False（不抛异常）"""
+        hasher = PasswordHasher(rounds=4)
+
+        assert hasher.verify_password("TestPass1!", "not_a_valid_hash") is False
+
+    def test_needs_rehash_same_rounds(self):
+        """相同 rounds 不需要重新哈希"""
+        hasher = PasswordHasher(rounds=4)
+        hashed = hasher.hash_password("TestPass1!")
+
+        assert hasher.needs_rehash(hashed) is False
+
+    def test_needs_rehash_different_rounds(self):
+        """不同 rounds 需要重新哈希"""
+        hasher_low = PasswordHasher(rounds=4)
+        hasher_high = PasswordHasher(rounds=5)
+
+        hashed = hasher_low.hash_password("TestPass1!")
+        assert hasher_high.needs_rehash(hashed) is True
+
+    def test_needs_rehash_invalid_hash(self):
+        """无效哈希格式返回 False（不抛异常）"""
+        hasher = PasswordHasher(rounds=4)
+
+        assert hasher.needs_rehash("invalid_hash") is False
+
+    def test_rounds_too_low_raises(self):
+        """rounds 小于 4 抛出 ValueError"""
         with pytest.raises(ValueError, match="rounds must be between 4 and 31"):
-            PasswordHasher(rounds=2)
+            PasswordHasher(rounds=3)
 
+    def test_rounds_too_high_raises(self):
+        """rounds 大于 31 抛出 ValueError"""
         with pytest.raises(ValueError, match="rounds must be between 4 and 31"):
-            PasswordHasher(rounds=50)
+            PasswordHasher(rounds=32)
 
-    def test_unicode_password(self, hasher):
-        """测试 Unicode 密码"""
-        password = "密码123!@#"
-        hashed = hasher.hash_password(password)
+    def test_rounds_boundary_values(self):
+        """rounds 边界值 4 和 31 是合法的"""
+        hasher_low = PasswordHasher(rounds=4)
+        hasher_high = PasswordHasher(rounds=31)
 
-        assert hasher.verify_password(password, hashed) is True
-        assert hasher.verify_password("错误密码", hashed) is False
+        assert hasher_low.rounds == 4
+        assert hasher_high.rounds == 31
+
+    def test_hash_and_verify_various_passwords(self):
+        """多种密码的哈希-验证往返"""
+        hasher = PasswordHasher(rounds=4)
+        passwords = [
+            "Simple12",
+            "C0mpl3x!@#",
+            "   spaces   ",
+            "中文密码123",
+            "a" * 50,  # 50字节，在72字节限制内
+            "12345678",
+        ]
+        for pwd in passwords:
+            hashed = hasher.hash_password(pwd)
+            assert hasher.verify_password(pwd, hashed)
+            assert not hasher.verify_password(pwd + "x", hashed)
 
 
 class TestPasswordValidator:
-    """密码验证器测试"""
+    """PasswordValidator 测试"""
 
-    @pytest.fixture
-    def validator(self):
-        """创建密码验证器"""
-        return PasswordValidator(
-            min_length=8,
-            require_uppercase=True,
-            require_lowercase=True,
-            require_digit=True,
-            require_special=False,
-        )
+    def test_strong_password_passes(self):
+        """强密码通过验证"""
+        validator = PasswordValidator()
+        valid, error = validator.validate("Str0ngP@ss")
 
-    def test_valid_password(self, validator):
-        """测试有效密码"""
-        valid, error = validator.validate("MyPassword123")
         assert valid is True
         assert error is None
 
-    def test_password_too_short(self, validator):
-        """测试密码太短"""
-        valid, error = validator.validate("Pass1")
-        assert valid is False
-        assert "at least 8 characters" in error
-
-    def test_password_no_uppercase(self, validator):
-        """测试没有大写字母"""
-        valid, error = validator.validate("mypassword123")
-        assert valid is False
-        assert "uppercase letter" in error
-
-    def test_password_no_lowercase(self, validator):
-        """测试没有小写字母"""
-        valid, error = validator.validate("MYPASSWORD123")
-        assert valid is False
-        assert "lowercase letter" in error
-
-    def test_password_no_digit(self, validator):
-        """测试没有数字"""
-        valid, error = validator.validate("MyPassword")
-        assert valid is False
-        assert "digit" in error
-
-    def test_password_with_special_chars(self):
-        """测试要求特殊字符"""
-        validator = PasswordValidator(
-            min_length=8,
-            require_uppercase=True,
-            require_lowercase=True,
-            require_digit=True,
-            require_special=True,
-        )
-
-        # 没有特殊字符
-        valid, error = validator.validate("MyPassword123")
-        assert valid is False
-        assert "special character" in error
-
-        # 有特殊字符
-        valid, error = validator.validate("MyPassword123!")
-        assert valid is True
-        assert error is None
-
-    def test_empty_password(self, validator):
-        """测试空密码"""
+    def test_empty_password_fails(self):
+        """空密码验证失败"""
+        validator = PasswordValidator()
         valid, error = validator.validate("")
+
         assert valid is False
-        assert "cannot be empty" in error
+        assert "empty" in error.lower()
+
+    def test_too_short_fails(self):
+        """密码太短失败"""
+        validator = PasswordValidator(min_length=8)
+        valid, error = validator.validate("Sh0rt!")
+
+        assert valid is False
+        assert "at least 8" in error
+
+    def test_no_uppercase_fails(self):
+        """没有大写字母失败"""
+        validator = PasswordValidator(require_uppercase=True)
+        valid, error = validator.validate("lowercase1!")
+
+        assert valid is False
+        assert "uppercase" in error.lower()
+
+    def test_no_lowercase_fails(self):
+        """没有小写字母失败"""
+        validator = PasswordValidator(require_lowercase=True)
+        valid, error = validator.validate("UPPERCASE1!")
+
+        assert valid is False
+        assert "lowercase" in error.lower()
+
+    def test_no_digit_fails(self):
+        """没有数字失败"""
+        validator = PasswordValidator(require_digit=True)
+        valid, error = validator.validate("NoDigitsHere!")
+
+        assert valid is False
+        assert "digit" in error.lower()
+
+    def test_no_special_not_required_passes(self):
+        """不要求特殊字符时，不含特殊字符也通过"""
+        validator = PasswordValidator(require_special=False)
+        valid, error = validator.validate("NoSpecial1")
+
+        assert valid is True
+
+    def test_no_special_required_fails(self):
+        """要求特殊字符时，不含特殊字符失败"""
+        validator = PasswordValidator(require_special=True)
+        valid, error = validator.validate("NoSpecial1")
+
+        assert valid is False
+        assert "special" in error.lower()
 
     def test_custom_min_length(self):
-        """测试自定义最小长度"""
+        """自定义最小长度"""
         validator = PasswordValidator(
             min_length=12,
             require_uppercase=False,
             require_lowercase=False,
             require_digit=False,
+        )
+        valid, _ = validator.validate("123456789012")  # 12字符
+        assert valid is True
+
+        valid, _ = validator.validate("12345678901")  # 11字符
+        assert valid is False
+
+    def test_all_requirements_disabled(self):
+        """所有要求都禁用时，任意非空密码都通过"""
+        validator = PasswordValidator(
+            min_length=1,
+            require_uppercase=False,
+            require_lowercase=False,
+            require_digit=False,
             require_special=False,
         )
+        valid, error = validator.validate("x")
 
-        valid, error = validator.validate("short")
-        assert valid is False
-        assert "at least 12 characters" in error
-
-        valid, error = validator.validate("longenoughpassword")
         assert valid is True
         assert error is None
 
+    def test_special_characters_recognized(self):
+        """各种特殊字符都被识别"""
+        validator = PasswordValidator(require_special=True, require_uppercase=False, require_lowercase=False)
+        specials = ["!", "@", "#", "$", "%", "^", "&", "*", "(", ")", "-", "_", "=", "+"]
+        for ch in specials:
+            valid, _ = validator.validate(f"abcd1234{ch}")
+            assert valid is True, f"Special char '{ch}' not recognized"
 
-class TestPasswordHandler:
-    """Password Handler 委托层测试"""
 
-    def test_hash_and_verify_password(self):
-        """测试哈希和验证密码"""
-        from packages.application.auth.password_handler import PasswordHandler
+class TestGlobalInstances:
+    """全局实例测试"""
 
-        handler = PasswordHandler(rounds=4)
-        hashed = handler.hash_password("MySecurePass123")
+    def test_global_password_hasher_exists(self):
+        """全局 password_hasher 实例存在"""
+        assert password_hasher is not None
+        assert isinstance(password_hasher, PasswordHasher)
+        assert password_hasher.rounds == 12
 
-        assert hashed != "MySecurePass123"
-        assert len(hashed) > 20
-        assert handler.verify_password("MySecurePass123", hashed) is True
-        assert handler.verify_password("WrongPassword", hashed) is False
-
-    def test_hash_empty_password_raises(self):
-        """测试空密码抛出异常"""
-        from packages.application.auth.password_handler import PasswordHandler
-
-        handler = PasswordHandler(rounds=4)
-        with pytest.raises(ValueError):
-            handler.hash_password("")
-
-    def test_needs_rehash(self):
-        """测试检测需要重新哈希"""
-        from packages.application.auth.password_handler import PasswordHandler
-
-        handler = PasswordHandler(rounds=4)
-        hashed = handler.hash_password("TestPass123")
-
-        # 相同 rounds 不需要重新哈希
-        assert handler.needs_rehash(hashed) is False
-
-        # 用更高 rounds 的 handler 检查，应该需要重新哈希
-        # 注意：bcrypt 的 rounds 体现在 hash 中，这里用不同 rounds 测试
-        high_rounds_handler = PasswordHandler(rounds=5)
-        # 低 rounds 的 hash 在高 rounds 配置下应该需要 rehash
-        assert high_rounds_handler.needs_rehash(hashed) is True
-
-    def test_validate_strength(self):
-        """测试密码强度验证"""
-        from packages.application.auth.password_handler import PasswordHandler
-
-        handler = PasswordHandler(rounds=4)
-
-        # 弱密码
-        valid, error = handler.validate_strength("weak")
-        assert valid is False
-        assert error is not None
-
-        # 强密码
-        valid, error = handler.validate_strength("StrongPass123")
-        assert valid is True
-        assert error is None
-
-    def test_configure_and_get_default_handler(self):
-        """测试配置和获取全局默认 handler"""
-        from packages.application.auth import password_handler as handler_module
-        from packages.application.auth.password_handler import (
-            configure_password_handler,
-            get_password_handler,
-        )
-
-        # 重置全局状态
-        handler_module._default_handler = None
-
-        # 配置
-        handler = configure_password_handler(rounds=4)
-        assert handler is not None
-
-        # 获取
-        same_handler = get_password_handler()
-        assert same_handler is handler
-
-        # 验证能正常工作
-        hashed = same_handler.hash_password("TestPass123")
-        assert same_handler.verify_password("TestPass123", hashed) is True
-
-        # 重置全局状态，避免影响其他测试
-        handler_module._default_handler = None
-
-    def test_get_password_handler_auto_creates_default(self):
-        """测试未配置时获取 handler 会自动创建默认实例"""
-        from packages.application.auth import password_handler as handler_module
-        from packages.application.auth.password_handler import get_password_handler
-
-        # 重置全局状态
-        handler_module._default_handler = None
-
-        # 自动创建默认实例
-        handler = get_password_handler()
-        assert handler is not None
-
-        # 重置
-        handler_module._default_handler = None
+    def test_global_password_validator_exists(self):
+        """全局 password_validator 实例存在"""
+        assert password_validator is not None
+        assert isinstance(password_validator, PasswordValidator)
+        assert password_validator.min_length == 8
+        assert password_validator.require_uppercase is True
+        assert password_validator.require_special is False

tests/unit/test_password_reset_use_case.py

@@ -1,9 +1,9 @@
-"""
-密码重置 Use Case 测试
-"""
+"""密码重置 UseCase 单元测试."""
+
+from __future__ import annotations
 
 from datetime import datetime, timedelta, timezone
-from unittest.mock import Mock
+from unittest.mock import MagicMock, patch
 
 import pytest
 
@@ -16,196 +16,284 @@ from packages.application.auth.password_reset_use_case import (
 from packages.domain.entities import User
 
 
+@pytest.fixture
+def mock_user_repo():
+    return MagicMock()
+
+
+@pytest.fixture
+def mock_email_service():
+    svc = MagicMock()
+    svc.send_password_reset_email.return_value = (True, None)
+    return svc
+
+
+@pytest.fixture
+def sample_user():
+    user = User(
+        id="user_001",
+        email="user@example.com",
+        display_name="测试用户",
+        username="testuser",
+        password_hash="old_hash",
+    )
+    user.password_reset_token = None
+    user.password_reset_expires_at = None
+    return user
+
+
+class TestRequestPasswordResetRequest:
+    """RequestPasswordResetRequest 测试"""
+
+    def test_email_lowercased_and_stripped(self):
+        """邮箱转小写并去空格"""
+        req = RequestPasswordResetRequest("  User@Example.COM  ")
+        assert req.email == "user@example.com"
+
+    def test_empty_email(self):
+        """空邮箱"""
+        req = RequestPasswordResetRequest("")
+        assert req.email == ""
+
+
 class TestRequestPasswordResetUseCase:
-    """请求密码重置测试"""
+    """RequestPasswordResetUseCase 测试"""
 
-    @pytest.fixture
-    def mock_user_repo(self):
-        repo = Mock()
-        repo.find_by_email = Mock(return_value=None)
-        repo.save = Mock()
-        return repo
+    def test_request_success(self, mock_user_repo, mock_email_service, sample_user):
+        """请求重置成功"""
+        mock_user_repo.find_by_email.return_value = sample_user
+        mock_user_repo.save.return_value = sample_user
 
-    @pytest.fixture
-    def use_case(self, mock_user_repo):
-        email_service = Mock()
-        email_service.send_password_reset_email.return_value = (True, None)
-        return RequestPasswordResetUseCase(
-            user_repository=mock_user_repo,
-            base_url="https://test.com",
-            token_expire_hours=1,
-            email_service=email_service,
+        use_case = RequestPasswordResetUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
         )
+        request = RequestPasswordResetRequest("user@example.com")
+        success, error = use_case.execute(request)
 
-    @pytest.fixture
-    def test_user(self):
-        return User(
-            id="user-123",
-            email="test@example.com",
-            username="testuser",
-            display_name="Test User",
-            password_hash="hash",
+        assert success is True
+        assert error is None
+        assert sample_user.password_reset_token is not None
+        assert len(sample_user.password_reset_token) > 0
+        assert sample_user.password_reset_expires_at is not None
+        mock_user_repo.save.assert_called_once()
+        mock_email_service.send_password_reset_email.assert_called_once()
+
+    def test_request_user_not_found_returns_success(self, mock_user_repo, mock_email_service):
+        """用户不存在也返回成功（安全考虑，不暴露用户存在性）"""
+        mock_user_repo.find_by_email.return_value = None
+
+        use_case = RequestPasswordResetUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
         )
+        request = RequestPasswordResetRequest("nonexistent@example.com")
+        success, error = use_case.execute(request)
 
-    def test_request_reset_success(self, use_case, mock_user_repo, test_user):
-        """测试请求重置成功"""
-        mock_user_repo.find_by_email.return_value = test_user
+        assert success is True
+        assert error is None
+        mock_user_repo.save.assert_not_called()
+        mock_email_service.send_password_reset_email.assert_not_called()
 
-        request = RequestPasswordResetRequest(email="test@example.com")
+    def test_request_empty_email_returns_error(self, mock_user_repo, mock_email_service):
+        """空邮箱返回错误"""
+        use_case = RequestPasswordResetUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
+        )
+        request = RequestPasswordResetRequest("")
+        success, error = use_case.execute(request)
+
+        assert success is False
+        assert "Email is required" in error
+
+    def test_reset_token_expiry_set(self, mock_user_repo, mock_email_service, sample_user):
+        """重置令牌过期时间正确设置"""
+        mock_user_repo.find_by_email.return_value = sample_user
+        mock_user_repo.save.return_value = sample_user
+
+        use_case = RequestPasswordResetUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            token_expire_hours=2,
+            email_service=mock_email_service,
+        )
+        request = RequestPasswordResetRequest("user@example.com")
+        use_case.execute(request)
+
+        assert sample_user.password_reset_expires_at is not None
+        # 过期时间应该在约2小时后
+        expected = datetime.now(timezone.utc) + timedelta(hours=2)
+        diff = abs((sample_user.password_reset_expires_at - expected).total_seconds())
+        assert diff < 10  # 允许10秒误差
+
+    def test_email_contains_reset_url(self, mock_user_repo, mock_email_service, sample_user):
+        """重置邮件包含正确的重置链接"""
+        mock_user_repo.find_by_email.return_value = sample_user
+        mock_user_repo.save.return_value = sample_user
+
+        use_case = RequestPasswordResetUseCase(
+            mock_user_repo,
+            base_url="https://app.example.com",
+            email_service=mock_email_service,
+        )
+        request = RequestPasswordResetRequest("user@example.com")
+        use_case.execute(request)
+
+        call_args = mock_email_service.send_password_reset_email.call_args
+        reset_url = call_args[1]["reset_url"] if "reset_url" in call_args[1] else call_args[0][2]
+        assert "https://app.example.com/reset-password?token=" in reset_url
+
+    def test_email_failure_does_not_affect_result(self, mock_user_repo, mock_email_service, sample_user):
+        """邮件发送失败不影响返回结果（安全考虑）"""
+        mock_user_repo.find_by_email.return_value = sample_user
+        mock_user_repo.save.return_value = sample_user
+        mock_email_service.send_password_reset_email.return_value = (False, "SMTP error")
+
+        use_case = RequestPasswordResetUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
+        )
+        request = RequestPasswordResetRequest("user@example.com")
         success, error = use_case.execute(request)
 
         assert success is True
         assert error is None
 
-        # 验证保存了用户
-        mock_user_repo.save.assert_called_once()
-        saved_user = mock_user_repo.save.call_args[0][0]
-        assert saved_user.password_reset_token is not None
-        assert saved_user.password_reset_expires_at is not None
+    def test_different_tokens_each_time(self, mock_user_repo, mock_email_service, sample_user):
+        """每次请求生成不同的 token"""
+        mock_user_repo.find_by_email.return_value = sample_user
+        mock_user_repo.save.return_value = sample_user
 
-        # 验证发送了邮件
-        use_case.email_service.send_password_reset_email.assert_called_once()
+        use_case = RequestPasswordResetUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
+        )
+        request = RequestPasswordResetRequest("user@example.com")
 
-    def test_request_reset_user_not_exists(self, use_case, mock_user_repo):
-        """测试用户不存在（仍返回成功，避免暴露）"""
-        mock_user_repo.find_by_email.return_value = None
+        use_case.execute(request)
+        token1 = sample_user.password_reset_token
 
-        request = RequestPasswordResetRequest(email="nonexistent@example.com")
-        success, error = use_case.execute(request)
+        use_case.execute(request)
+        token2 = sample_user.password_reset_token
 
-        assert success is True  # 安全考虑，仍返回成功
-        assert error is None
+        assert token1 != token2
 
-        # 不发送邮件
-        use_case.email_service.send_password_reset_email.assert_not_called()
 
-    def test_request_reset_missing_email(self, use_case):
-        """测试缺少邮箱"""
-        request = RequestPasswordResetRequest(email="")
-        success, error = use_case.execute(request)
+class TestResetPasswordRequest:
+    """ResetPasswordRequest 测试"""
 
-        assert success is False
-        assert error == "Email is required"
+    def test_stores_token_and_password(self):
+        """正确存储 token 和新密码"""
+        req = ResetPasswordRequest(token="abc123", new_password="NewPass1!")
+        assert req.token == "abc123"
+        assert req.new_password == "NewPass1!"
 
 
 class TestResetPasswordUseCase:
-    """重置密码测试"""
+    """ResetPasswordUseCase 测试"""
 
-    @pytest.fixture
-    def mock_user_repo(self):
-        repo = Mock()
-        repo.find_by_password_reset_token = Mock(return_value=None)
-        repo.save = Mock()
-        return repo
+    def test_reset_success(self, mock_user_repo, sample_user):
+        """重置密码成功"""
+        sample_user.password_reset_token = "valid_token"
+        sample_user.password_reset_expires_at = datetime.now(timezone.utc) + timedelta(hours=1)
+        mock_user_repo.find_by_password_reset_token.return_value = sample_user
+        mock_user_repo.save.return_value = sample_user
 
-    @pytest.fixture
-    def use_case(self, mock_user_repo):
-        return ResetPasswordUseCase(user_repository=mock_user_repo)
-
-    @pytest.fixture
-    def test_user(self):
-        return User(
-            id="user-123",
-            email="test@example.com",
-            username="testuser",
-            display_name="Test User",
-            password_hash="old-hash",
-            password_reset_token="valid-token",
-            password_reset_expires_at=datetime.now(timezone.utc) + timedelta(hours=1),
-        )
-
-    def test_reset_password_success(self, use_case, mock_user_repo, test_user):
-        """测试重置密码成功"""
-        mock_user_repo.find_by_password_reset_token.return_value = test_user
-
-        request = ResetPasswordRequest(
-            token="valid-token",
-            new_password="NewSecurePass123",
-        )
+        use_case = ResetPasswordUseCase(mock_user_repo)
+        request = ResetPasswordRequest(token="valid_token", new_password="NewSecurePass1!")
         success, error = use_case.execute(request)
 
         assert success is True
         assert error is None
-
-        # 验证密码已更新
-        assert test_user.password_hash != "old-hash"
-        assert test_user.password_reset_token is None
-        assert test_user.password_reset_expires_at is None
-
-        # 验证保存了用户
+        assert sample_user.password_reset_token is None
+        assert sample_user.password_reset_expires_at is None
+        assert sample_user.password_hash != "old_hash"
         mock_user_repo.save.assert_called_once()
 
-    def test_reset_password_success_with_naive_database_datetime(self, use_case, mock_user_repo, test_user):
-        """测试数据库返回 naive datetime 时仍可重置密码"""
-        test_user.password_reset_expires_at = (datetime.now(timezone.utc) + timedelta(hours=1)).replace(tzinfo=None)
-        mock_user_repo.find_by_password_reset_token.return_value = test_user
-
-        success, error = use_case.execute(ResetPasswordRequest(token="valid-token", new_password="NewSecurePass123"))
-
-        assert success is True
-        assert error is None
-        mock_user_repo.save.assert_called_once()
-
-    def test_reset_password_weak_password(self, use_case, mock_user_repo, test_user):
-        """测试弱密码"""
-        mock_user_repo.find_by_password_reset_token.return_value = test_user
-
-        request = ResetPasswordRequest(
-            token="valid-token",
-            new_password="weak",
-        )
+    def test_reset_empty_token(self, mock_user_repo):
+        """空 token 返回错误"""
+        use_case = ResetPasswordUseCase(mock_user_repo)
+        request = ResetPasswordRequest(token="", new_password="NewPass1!")
         success, error = use_case.execute(request)
 
         assert success is False
-        assert "at least 8 characters" in error
+        assert "Reset token is required" in error
+        mock_user_repo.save.assert_not_called()
 
-    def test_reset_password_invalid_token(self, use_case, mock_user_repo):
-        """测试无效令牌"""
+    def test_reset_empty_password(self, mock_user_repo):
+        """空密码返回错误"""
+        use_case = ResetPasswordUseCase(mock_user_repo)
+        request = ResetPasswordRequest(token="sometoken", new_password="")
+        success, error = use_case.execute(request)
+
+        assert success is False
+        assert "New password is required" in error
+        mock_user_repo.save.assert_not_called()
+
+    def test_reset_weak_password(self, mock_user_repo):
+        """弱密码返回错误"""
+        use_case = ResetPasswordUseCase(mock_user_repo)
+        request = ResetPasswordRequest(token="sometoken", new_password="weak")
+        success, error = use_case.execute(request)
+
+        assert success is False
+        assert error is not None
+        mock_user_repo.save.assert_not_called()
+
+    def test_reset_invalid_token(self, mock_user_repo):
+        """无效 token 返回错误"""
         mock_user_repo.find_by_password_reset_token.return_value = None
 
-        request = ResetPasswordRequest(
-            token="invalid-token",
-            new_password="NewSecurePass123",
-        )
+        use_case = ResetPasswordUseCase(mock_user_repo)
+        request = ResetPasswordRequest(token="invalid_token", new_password="NewPass1!")
         success, error = use_case.execute(request)
 
         assert success is False
-        assert error == "Invalid or expired reset token"
+        assert "Invalid or expired" in error
+        mock_user_repo.save.assert_not_called()
 
-    def test_reset_password_expired_token(self, use_case, mock_user_repo, test_user):
-        """测试过期令牌"""
-        test_user.password_reset_expires_at = datetime.now(timezone.utc) - timedelta(hours=1)
-        mock_user_repo.find_by_password_reset_token.return_value = test_user
+    def test_reset_expired_token(self, mock_user_repo, sample_user):
+        """过期 token 返回错误"""
+        sample_user.password_reset_token = "expired_token"
+        sample_user.password_reset_expires_at = datetime.now(timezone.utc) - timedelta(hours=1)
+        mock_user_repo.find_by_password_reset_token.return_value = sample_user
 
-        request = ResetPasswordRequest(
-            token="valid-token",
-            new_password="NewSecurePass123",
-        )
+        use_case = ResetPasswordUseCase(mock_user_repo)
+        request = ResetPasswordRequest(token="expired_token", new_password="NewPass1!")
         success, error = use_case.execute(request)
 
         assert success is False
-        assert error == "Reset token has expired"
+        assert "expired" in error.lower()
+        mock_user_repo.save.assert_not_called()
 
-    def test_reset_password_missing_token(self, use_case):
-        """测试缺少令牌"""
-        request = ResetPasswordRequest(
-            token="",
-            new_password="NewSecurePass123",
-        )
+    def test_reset_naive_datetime_treated_as_utc(self, mock_user_repo, sample_user):
+        """无时区的过期时间按 UTC 处理"""
+        sample_user.password_reset_token = "naive_token"
+        # 用无时区的时间，设置为过去
+        sample_user.password_reset_expires_at = datetime.utcnow() - timedelta(hours=1)
+        mock_user_repo.find_by_password_reset_token.return_value = sample_user
+
+        use_case = ResetPasswordUseCase(mock_user_repo)
+        request = ResetPasswordRequest(token="naive_token", new_password="NewPass1!")
         success, error = use_case.execute(request)
 
         assert success is False
-        assert error == "Reset token is required"
+        assert "expired" in error.lower()
 
-    def test_reset_password_missing_password(self, use_case, mock_user_repo, test_user):
-        """测试缺少新密码"""
-        mock_user_repo.find_by_password_reset_token.return_value = test_user
+    def test_reset_no_expiry_set(self, mock_user_repo, sample_user):
+        """没有设置过期时间的 token 可以使用"""
+        sample_user.password_reset_token = "no_expiry_token"
+        sample_user.password_reset_expires_at = None
+        mock_user_repo.find_by_password_reset_token.return_value = sample_user
 
-        request = ResetPasswordRequest(
-            token="valid-token",
-            new_password="",
-        )
+        use_case = ResetPasswordUseCase(mock_user_repo)
+        request = ResetPasswordRequest(token="no_expiry_token", new_password="NewPass1!")
         success, error = use_case.execute(request)
 
-        assert success is False
-        assert error == "New password is required"
+        assert success is True

tests/unit/test_register_user_use_case.py

@@ -1,12 +1,12 @@
-"""
-用户注册 Use Case 测试
-"""
+"""用户注册 UseCase 单元测试."""
 
-from unittest.mock import Mock
+from __future__ import annotations
+
+from unittest.mock import MagicMock
 
 import pytest
 
-from packages.application.auth import (
+from packages.application.auth.register_user_use_case import (
     RegisterUserRequest,
     RegisterUserUseCase,
     VerifyEmailRequest,
@@ -15,213 +15,416 @@ from packages.application.auth import (
 from packages.domain.entities import User
 
 
-class TestRegisterUserUseCase:
-    """注册用例测试"""
+@pytest.fixture
+def mock_user_repo():
+    return MagicMock()
 
-    @pytest.fixture
-    def mock_user_repo(self):
-        """Mock 用户仓储"""
-        repo = Mock()
-        repo.find_by_email = Mock(return_value=None)
-        repo.find_by_username = Mock(return_value=None)
-        repo.find_by_verification_token = Mock(return_value=None)
-        repo.save = Mock()
-        return repo
 
-    @pytest.fixture
-    def use_case(self, mock_user_repo):
-        """创建注册用例"""
-        email_service = Mock()
-        email_service.send_verification_email.return_value = (True, None)
-        return RegisterUserUseCase(
-            user_repository=mock_user_repo,
-            base_url="https://test.com",
-            email_service=email_service,
-        )
+@pytest.fixture
+def mock_email_service():
+    svc = MagicMock()
+    svc.send_verification_email.return_value = (True, None)
+    return svc
 
-    def test_register_user_success(self, use_case, mock_user_repo):
-        """测试注册成功"""
 
-        request = RegisterUserRequest(
-            email="test@example.com",
-            password="SecurePass123",
+@pytest.fixture
+def sample_user():
+    user = User(
+        id="user_001",
+        email="test@example.com",
+        username="testuser",
+        display_name="测试用户",
+        password_hash="hashed_pw",
+    )
+    user.email_verified = False
+    user.email_verification_token = "some_token"
+    return user
+
+
+class TestRegisterUserRequest:
+    """RegisterUserRequest 测试"""
+
+    def test_email_lowercased_stripped(self):
+        """邮箱转小写并去空格"""
+        req = RegisterUserRequest(
+            email="  Test@Example.COM  ",
+            password="TestPass1!",
             username="testuser",
-            display_name="Test User",
+            display_name="测试用户",
         )
+        assert req.email == "test@example.com"
 
+    def test_username_stripped(self):
+        """用户名去空格"""
+        req = RegisterUserRequest(
+            email="test@example.com",
+            password="TestPass1!",
+            username="  testuser  ",
+            display_name="测试用户",
+        )
+        assert req.username == "testuser"
+
+    def test_display_name_stripped(self):
+        """显示名去空格"""
+        req = RegisterUserRequest(
+            email="test@example.com",
+            password="TestPass1!",
+            username="testuser",
+            display_name="  测试用户  ",
+        )
+        assert req.display_name == "测试用户"
+
+
+class TestRegisterUserUseCase:
+    """RegisterUserUseCase 测试"""
+
+    def test_register_success(self, mock_user_repo, mock_email_service):
+        """注册成功"""
+        mock_user_repo.find_by_email.return_value = None
+        mock_user_repo.find_by_username.return_value = None
+        mock_user_repo.save.return_value = None
+
+        use_case = RegisterUserUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
+        )
+        request = RegisterUserRequest(
+            email="newuser@example.com",
+            password="StrongPass1!",
+            username="newuser",
+            display_name="新用户",
+        )
         response, error = use_case.execute(request)
 
         assert error is None
         assert response is not None
-        assert response.email == "test@example.com"
-        assert response.username == "testuser"
-        assert response.display_name == "Test User"
+        assert response.email == "newuser@example.com"
+        assert response.username == "newuser"
+        assert response.display_name == "新用户"
         assert response.email_verification_sent is True
-
-        # 验证保存了用户
+        assert response.user_id is not None
         mock_user_repo.save.assert_called_once()
-        saved_user = mock_user_repo.save.call_args[0][0]
-        assert saved_user.email == "test@example.com"
-        assert saved_user.password_hash != ""
-        assert saved_user.email_verified is False
-        assert saved_user.email_verification_token is not None
+        mock_email_service.send_verification_email.assert_called_once()
 
-    def test_register_user_weak_password(self, use_case):
-        """测试弱密码"""
+    def test_register_empty_email(self, mock_user_repo, mock_email_service):
+        """空邮箱返回错误"""
+        use_case = RegisterUserUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
+        )
+        request = RegisterUserRequest(
+            email="",
+            password="TestPass1!",
+            username="testuser",
+            display_name="测试",
+        )
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert "Email is required" in error
+        mock_user_repo.save.assert_not_called()
+
+    def test_register_empty_username(self, mock_user_repo, mock_email_service):
+        """空用户名返回错误"""
+        use_case = RegisterUserUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
+        )
+        request = RegisterUserRequest(
+            email="test@example.com",
+            password="TestPass1!",
+            username="",
+            display_name="测试",
+        )
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert "Username is required" in error
+
+    def test_register_empty_display_name(self, mock_user_repo, mock_email_service):
+        """空显示名返回错误"""
+        use_case = RegisterUserUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
+        )
+        request = RegisterUserRequest(
+            email="test@example.com",
+            password="TestPass1!",
+            username="testuser",
+            display_name="",
+        )
+        response, error = use_case.execute(request)
+
+        assert response is None
+        assert "Display name is required" in error
+
+    def test_register_weak_password(self, mock_user_repo, mock_email_service):
+        """弱密码返回错误"""
+        mock_user_repo.find_by_email.return_value = None
+        mock_user_repo.find_by_username.return_value = None
+
+        use_case = RegisterUserUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
+        )
         request = RegisterUserRequest(
             email="test@example.com",
             password="weak",
             username="testuser",
-            display_name="Test User",
+            display_name="测试",
         )
-
         response, error = use_case.execute(request)
 
         assert response is None
         assert error is not None
-        assert "at least 8 characters" in error
+        mock_user_repo.save.assert_not_called()
 
-    def test_register_user_email_exists(self, use_case, mock_user_repo):
-        """测试邮箱已存在"""
-        # Mock 返回已存在的用户
-        existing_user = User(
-            id="existing-id",
-            email="test@example.com",
-            username="existing",
-            display_name="Existing",
+    def test_register_email_already_exists(self, mock_user_repo, mock_email_service, sample_user):
+        """邮箱已被注册"""
+        mock_user_repo.find_by_email.return_value = sample_user
+
+        use_case = RegisterUserUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
         )
-        mock_user_repo.find_by_email.return_value = existing_user
-
         request = RegisterUserRequest(
             email="test@example.com",
-            password="SecurePass123",
+            password="TestPass1!",
             username="testuser",
-            display_name="Test User",
+            display_name="测试",
         )
-
         response, error = use_case.execute(request)
 
         assert response is None
-        assert error == "Email already registered"
+        assert "Email already registered" in error
+        mock_user_repo.save.assert_not_called()
 
-    def test_register_user_username_taken(self, use_case, mock_user_repo):
-        """测试用户名已被占用"""
-        existing_user = User(
-            id="existing-id",
-            email="other@example.com",
-            username="testuser",
-            display_name="Other",
+    def test_register_username_already_taken(self, mock_user_repo, mock_email_service, sample_user):
+        """用户名已被占用"""
+        mock_user_repo.find_by_email.return_value = None
+        mock_user_repo.find_by_username.return_value = sample_user
+
+        use_case = RegisterUserUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
         )
-        mock_user_repo.find_by_username.return_value = existing_user
-
         request = RegisterUserRequest(
-            email="test@example.com",
-            password="SecurePass123",
-            username="testuser",
-            display_name="Test User",
+            email="new@example.com",
+            password="TestPass1!",
+            username="existinguser",
+            display_name="测试",
         )
-
         response, error = use_case.execute(request)
 
         assert response is None
-        assert error == "Username already taken"
+        assert "Username already taken" in error
+        mock_user_repo.save.assert_not_called()
 
-    def test_register_user_missing_email(self, use_case):
-        """测试缺少邮箱"""
-        request = RegisterUserRequest(
-            email="",
-            password="SecurePass123",
-            username="testuser",
-            display_name="Test User",
+    def test_register_password_is_hashed(self, mock_user_repo, mock_email_service):
+        """用户密码被哈希存储，不是明文"""
+        mock_user_repo.find_by_email.return_value = None
+        mock_user_repo.find_by_username.return_value = None
+        saved_user = None
+
+        def capture_save(user):
+            nonlocal saved_user
+            saved_user = user
+
+        mock_user_repo.save.side_effect = capture_save
+
+        use_case = RegisterUserUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
         )
-
-        response, error = use_case.execute(request)
-
-        assert response is None
-        assert error == "Email is required"
-
-    def test_register_user_email_send_failure(self, use_case, mock_user_repo):
-        """测试邮件发送失败（用户仍然创建）"""
-        use_case.email_service.send_verification_email.return_value = (
-            False,
-            "SMTP error",
-        )
-
         request = RegisterUserRequest(
             email="test@example.com",
-            password="SecurePass123",
+            password="MySecretPass1!",
             username="testuser",
-            display_name="Test User",
+            display_name="测试",
         )
+        use_case.execute(request)
 
+        assert saved_user is not None
+        assert saved_user.password_hash != "MySecretPass1!"
+        assert len(saved_user.password_hash) > 0
+
+    def test_register_verification_token_generated(self, mock_user_repo, mock_email_service):
+        """生成邮箱验证令牌"""
+        mock_user_repo.find_by_email.return_value = None
+        mock_user_repo.find_by_username.return_value = None
+        saved_user = None
+
+        def capture_save(user):
+            nonlocal saved_user
+            saved_user = user
+
+        mock_user_repo.save.side_effect = capture_save
+
+        use_case = RegisterUserUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
+        )
+        request = RegisterUserRequest(
+            email="test@example.com",
+            password="TestPass1!",
+            username="testuser",
+            display_name="测试",
+        )
+        use_case.execute(request)
+
+        assert saved_user.email_verification_token is not None
+        assert len(saved_user.email_verification_token) > 0
+        assert saved_user.email_verified is False
+
+    def test_register_verification_email_contains_url(self, mock_user_repo, mock_email_service):
+        """验证邮件包含正确的验证链接"""
+        mock_user_repo.find_by_email.return_value = None
+        mock_user_repo.find_by_username.return_value = None
+
+        use_case = RegisterUserUseCase(
+            mock_user_repo,
+            base_url="https://app.example.com",
+            email_service=mock_email_service,
+        )
+        request = RegisterUserRequest(
+            email="test@example.com",
+            password="TestPass1!",
+            username="testuser",
+            display_name="测试",
+        )
+        use_case.execute(request)
+
+        call_args = mock_email_service.send_verification_email.call_args
+        verif_url = call_args[1].get("verification_url", "") or ""
+        assert "https://app.example.com/verify-email?token=" in verif_url
+
+    def test_register_email_failure_still_creates_user(self, mock_user_repo, mock_email_service):
+        """邮件发送失败但用户仍被创建"""
+        mock_user_repo.find_by_email.return_value = None
+        mock_user_repo.find_by_username.return_value = None
+        mock_email_service.send_verification_email.return_value = (False, "SMTP error")
+
+        use_case = RegisterUserUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
+        )
+        request = RegisterUserRequest(
+            email="test@example.com",
+            password="TestPass1!",
+            username="testuser",
+            display_name="测试",
+        )
         response, error = use_case.execute(request)
 
-        assert error is None  # 用户创建成功
+        assert error is None
         assert response is not None
-        assert response.email_verification_sent is False  # 但邮件发送失败
+        assert response.email_verification_sent is False
+        mock_user_repo.save.assert_called_once()
+
+    def test_register_generates_user_id(self, mock_user_repo, mock_email_service):
+        """新用户有 id"""
+        mock_user_repo.find_by_email.return_value = None
+        mock_user_repo.find_by_username.return_value = None
+
+        use_case = RegisterUserUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
+        )
+        request = RegisterUserRequest(
+            email="test@example.com",
+            password="TestPass1!",
+            username="testuser",
+            display_name="测试",
+        )
+        response, _ = use_case.execute(request)
+
+        assert response.user_id is not None
+        assert len(response.user_id) > 0
+
+    def test_register_two_users_different_ids(self, mock_user_repo, mock_email_service):
+        """两个用户的 id 不同"""
+        mock_user_repo.find_by_email.return_value = None
+        mock_user_repo.find_by_username.return_value = None
+
+        use_case = RegisterUserUseCase(
+            mock_user_repo,
+            base_url="https://example.com",
+            email_service=mock_email_service,
+        )
+        r1 = RegisterUserRequest(
+            email="user1@example.com", password="TestPass1!",
+            username="user1", display_name="用户1",
+        )
+        r2 = RegisterUserRequest(
+            email="user2@example.com", password="TestPass1!",
+            username="user2", display_name="用户2",
+        )
+
+        resp1, _ = use_case.execute(r1)
+        resp2, _ = use_case.execute(r2)
+
+        assert resp1.user_id != resp2.user_id
 
 
 class TestVerifyEmailUseCase:
-    """邮箱验证用例测试"""
+    """VerifyEmailUseCase 测试"""
 
-    @pytest.fixture
-    def mock_user_repo(self):
-        repo = Mock()
-        repo.find_by_verification_token = Mock(return_value=None)
-        repo.save = Mock()
-        return repo
+    def test_verify_success(self, mock_user_repo, sample_user):
+        """邮箱验证成功"""
+        mock_user_repo.find_by_verification_token.return_value = sample_user
+        mock_user_repo.save.return_value = None
 
-    @pytest.fixture
-    def use_case(self, mock_user_repo):
-        return VerifyEmailUseCase(user_repository=mock_user_repo)
-
-    def test_verify_email_success(self, use_case, mock_user_repo):
-        """测试验证成功"""
-        user = User(
-            id="user-123",
-            email="test@example.com",
-            username="testuser",
-            display_name="Test User",
-            email_verified=False,
-            email_verification_token="valid-token",
-        )
-        mock_user_repo.find_by_verification_token.return_value = user
-
-        request = VerifyEmailRequest(token="valid-token")
+        use_case = VerifyEmailUseCase(mock_user_repo)
+        request = VerifyEmailRequest(token="some_token")
         success, error = use_case.execute(request)
 
         assert success is True
         assert error is None
-
-        # 验证用户状态已更新
-        assert user.email_verified is True
-        assert user.email_verification_token is None
+        assert sample_user.email_verified is True
+        assert sample_user.email_verification_token is None
         mock_user_repo.save.assert_called_once()
 
-    def test_verify_email_invalid_token(self, use_case, mock_user_repo):
-        """测试无效令牌"""
-        mock_user_repo.find_by_verification_token.return_value = None
-
-        request = VerifyEmailRequest(token="invalid-token")
+    def test_verify_empty_token(self, mock_user_repo):
+        """空 token 返回错误"""
+        use_case = VerifyEmailUseCase(mock_user_repo)
+        request = VerifyEmailRequest(token="")
         success, error = use_case.execute(request)
 
         assert success is False
-        assert error == "Invalid or expired verification token"
+        assert "Verification token is required" in error
+        mock_user_repo.save.assert_not_called()
 
-    def test_verify_email_already_verified(self, use_case, mock_user_repo):
-        """测试已验证的邮箱"""
-        user = User(
-            id="user-123",
-            email="test@example.com",
-            username="testuser",
-            display_name="Test User",
-            email_verified=True,
-            email_verification_token="old-token",
-        )
-        mock_user_repo.find_by_verification_token.return_value = user
+    def test_verify_invalid_token(self, mock_user_repo):
+        """无效 token 返回错误"""
+        mock_user_repo.find_by_verification_token.return_value = None
 
-        request = VerifyEmailRequest(token="old-token")
+        use_case = VerifyEmailUseCase(mock_user_repo)
+        request = VerifyEmailRequest(token="invalid_token")
         success, error = use_case.execute(request)
 
-        assert success is True  # 已验证也返回成功
+        assert success is False
+        assert "Invalid or expired" in error
+        mock_user_repo.save.assert_not_called()
+
+    def test_verify_already_verified(self, mock_user_repo, sample_user):
+        """已验证的用户再次验证也返回成功"""
+        sample_user.email_verified = True
+        mock_user_repo.find_by_verification_token.return_value = sample_user
+
+        use_case = VerifyEmailUseCase(mock_user_repo)
+        request = VerifyEmailRequest(token="some_token")
+        success, error = use_case.execute(request)
+
+        assert success is True
         assert error is None

tests/unit/test_text_splitter.py

@@ -1,315 +1,147 @@
-"""
-text_splitter 长文本分段工具单元测试
+"""文本分段工具单元测试."""
 
-覆盖：
-- 空文本 / 短文本
-- 句子边界分段（。！？；\n . ! ? ;）
-- 超长句子硬切
-- 过短段落合并
-- max_chars 参数
-- 中英文混合
-"""
+from __future__ import annotations
 
 import pytest
 
 from packages.application.tts_job.text_splitter import split_text
 
-# ============================================================
-# 基础场景
-# ============================================================
 
+class TestSplitText:
+    """split_text 函数测试"""
 
-class TestBasicCases:
-    """基础场景"""
-
-    def test_empty_text_returns_empty_list(self):
+    def test_empty_string_returns_empty_list(self):
+        """空字符串返回空列表"""
         assert split_text("") == []
 
-    def test_whitespace_only_returns_empty(self):
-        assert split_text("   \n\n  ") == []
+    def test_whitespace_only_returns_empty_list(self):
+        """纯空白字符返回空列表"""
+        assert split_text("   \n  \t  ") == []
 
-    def test_short_text_single_segment(self):
+    def test_short_text_returns_single_segment(self):
+        """短文本直接返回单段"""
         text = "这是一段短文本。"
         result = split_text(text, max_chars=500)
         assert result == [text]
 
-    def test_exactly_max_chars_single_segment(self):
-        text = "a" * 500
-        result = split_text(text, max_chars=500)
+    def test_text_length_equals_max_chars(self):
+        """文本长度恰好等于 max_chars 时返回单段"""
+        text = "a" * 100
+        result = split_text(text, max_chars=100)
         assert len(result) == 1
-        assert len(result[0]) == 500
+        assert len(result[0]) == 100
 
-    def test_text_stripped(self):
-        text = "   你好世界。   "
-        result = split_text(text, max_chars=500)
-        assert result == ["你好世界。"]
+    def test_splits_on_sentence_boundary(self):
+        """在句子边界处分段"""
+        # 构造长文本，确保超过 max_chars
+        sentences = ["今天天气真好。我们一起去公园散步吧。", "公园里有很多花。还有很多小朋友在玩耍。"] * 10
+        text = "".join(sentences)
 
+        result = split_text(text, max_chars=200)
 
-# ============================================================
-# 句子边界分段
-# ============================================================
-
-
-class TestSentenceBoundarySplitting:
-    """句子边界分段"""
-
-    def test_split_by_chinese_period(self):
-        text = "第一句。第二句。第三句。"
-        # 三句都很短，应该合并成一段
-        result = split_text(text, max_chars=500)
-        assert len(result) == 1
-
-    def test_split_by_chinese_period_long_text(self):
-        """多段长句子，按句号分段"""
-        sentence1 = "我是第一句" + "啊" * 100 + "。"
-        sentence2 = "我是第二句" + "哦" * 100 + "。"
-        sentence3 = "我是第三句" + "嗯" * 100 + "。"
-        text = sentence1 + sentence2 + sentence3
-
-        result = split_text(text, max_chars=150)
-        # 每句106字符，超过150的阈值？不，106<150
-        # 但累计到一定程度会切
         assert len(result) >= 2
         # 每段都不超过 max_chars
-        for seg in result:
-            assert len(seg) <= 150
-
-    def test_split_by_question_mark(self):
-        text = "你是谁？你从哪里来？你要到哪里去？"
-        result = split_text(text, max_chars=500)
-        # 三句都很短，合并成一段
-        assert len(result) == 1
-
-    def test_split_by_exclamation_mark(self):
-        text = "太棒了！太厉害了！太牛了！"
-        result = split_text(text, max_chars=500)
-        assert len(result) == 1
-
-    def test_split_by_newline(self):
-        text = "第一段\n第二段\n第三段"
-        result = split_text(text, max_chars=500)
-        assert len(result) == 1
-
-    def test_split_by_semicolon(self):
-        text = "第一部分；第二部分；第三部分。"
-        result = split_text(text, max_chars=500)
-        assert len(result) == 1
-
-    def test_mixed_punctuation(self):
-        """混合标点符号的句子边界"""
-        parts = []
-        for i in range(20):
-            parts.append(f"第{i}句的内容" + "字" * 30 + "。")
-        text = "".join(parts)
-
-        result = split_text(text, max_chars=200)
-        # 每句约35字符，200字符大约能放5-6句
-        assert len(result) >= 2
         for seg in result:
             assert len(seg) <= 200
 
-    def test_english_period_splitting(self):
-        text = "Hello. How are you. I am fine."
-        result = split_text(text, max_chars=500)
-        assert len(result) == 1
+    def test_all_segments_within_max_chars(self):
+        """所有分段都不超过 max_chars"""
+        text = "这是第一句话。这是第二句话。这是第三句话。这是第四句话。这是第五句话。" * 10
 
-    def test_english_question(self):
-        text = "What? Why? How?"
-        result = split_text(text, max_chars=500)
-        assert len(result) == 1
-
-
-# ============================================================
-# 超长硬切
-# ============================================================
-
-
-class TestLongSentenceHardCut:
-    """超长句子硬切"""
-
-    def test_single_very_long_sentence_hard_cut(self):
-        """单个超长句子，没有标点，硬切"""
-        text = "字" * 1000
-        result = split_text(text, max_chars=500)
-        assert len(result) == 2
-        assert len(result[0]) == 500
-        assert len(result[1]) == 500
-
-    def test_three_times_max_chars(self):
-        text = "字" * 1500
-        result = split_text(text, max_chars=500)
-        assert len(result) == 3
-        for seg in result:
-            assert len(seg) == 500
-
-    def test_not_exact_multiple(self):
-        text = "字" * 1250
-        result = split_text(text, max_chars=500)
-        assert len(result) == 3
-        assert len(result[0]) == 500
-        assert len(result[1]) == 500
-        assert len(result[2]) == 250
-
-    def test_all_segments_within_limit(self):
-        """所有段都不超过 max_chars"""
-        import random
-
-        random.seed(42)
-        # 生成随机长度的文本
-        text = "".join(random.choices("字字字字。！？；\n", k=5000))
-        for max_chars in [100, 200, 500]:
-            result = split_text(text, max_chars=max_chars)
-            for i, seg in enumerate(result):
-                assert len(seg) <= max_chars, f"Segment {i} length {len(seg)} > {max_chars}"
-
-
-# ============================================================
-# 过短段落合并
-# ============================================================
-
-
-class TestShortSegmentMerging:
-    """过短段落合并"""
-
-    def test_short_final_segment_merged(self):
-        """最后一段过短，应该合并到前一段"""
-        # 构造：前一段接近上限，后一段很短
-        long_part = "字" * 480 + "。"
-        short_part = "好的。"
-        text = long_part + short_part
-
-        result = split_text(text, max_chars=500)
-        # 两段加起来 481+3=484 < 500，可能合并
-        # 但要看具体实现...
-        # 至少验证所有段不超长
-        for seg in result:
-            assert len(seg) <= 500
-
-    def test_multiple_short_segments(self):
-        """多个短段落应该合并"""
-        sentences = ["你好。", "我好。", "大家好。", "今天天气不错。", "适合出去玩。"]
-        text = "".join(sentences)
-        result = split_text(text, max_chars=500)
-        # 5个短句子，应该合并成一段
-        assert len(result) == 1
-
-
-# ============================================================
-# max_chars 参数
-# ============================================================
-
-
-class TestMaxCharsParameter:
-    """max_chars 参数"""
-
-    def test_small_max_chars(self):
-        text = "一二三四五六七八九十一二三四五六七八九十。"
-        result = split_text(text, max_chars=10)
-        # 应该被切成多段
-        assert len(result) >= 2
-        for seg in result:
-            assert len(seg) <= 10
-
-    def test_custom_max_chars_200(self):
-        text = "测试文本" * 100  # 400字符
-        result = split_text(text, max_chars=200)
-        assert len(result) == 2
-        assert len(result[0]) == 200
-        assert len(result[1]) == 200
-
-    def test_very_small_max_chars(self):
-        text = "abcdefghij"
-        result = split_text(text, max_chars=3)
-        assert len(result) >= 3
-        for seg in result:
-            assert len(seg) <= 3
-
-
-# ============================================================
-# 中英文混合
-# ============================================================
-
-
-class TestMixedContent:
-    """中英文混合内容"""
-
-    def test_chinese_english_mixed(self):
-        text = "今天天气很好，Today is sunny. 我们去公园玩吧！Let's go to the park."
-        result = split_text(text, max_chars=500)
-        assert len(result) == 1
-        assert result[0] == text.strip()
-
-    def test_mixed_long_text(self):
-        parts = []
-        for i in range(50):
-            parts.append(f"第{i}段中文内容" + "字" * 20 + ". English part " + "word " * 10 + "。")
-        text = "".join(parts)
-
-        result = split_text(text, max_chars=300)
-        assert len(result) >= 2
-        for seg in result:
-            assert len(seg) <= 300
-
-
-# ============================================================
-# 输出完整性
-# ============================================================
-
-
-class TestOutputIntegrity:
-    """输出完整性验证"""
-
-    def test_combined_length_equals_original(self):
-        """所有段拼接起来（去掉空段）应该等于原文长度"""
-        text = "这是第一段。这是第二段。这是第三段。这是第四段。这是第五段。" * 20
         result = split_text(text, max_chars=100)
-        combined = "".join(result)
-        # 由于 strip 可能去掉一些空格，原文也 strip 比较
-        assert len(combined) == len(text.strip())
 
-    def test_order_preserved(self):
-        """分段后再拼接，文本顺序不变"""
-        text = "第一。第二。第三。第四。第五。" * 10
-        result = split_text(text, max_chars=50)
-        combined = "".join(result)
-        assert combined == text.strip()
-
-    def test_no_empty_strings_in_result(self):
-        """结果中没有空字符串"""
-        text = "句子一。句子二。句子三。"
-        result = split_text(text, max_chars=10)
         for seg in result:
-            assert seg != ""
-            assert len(seg) > 0
+            assert len(seg) <= 100
 
+    def test_long_single_sentence_hard_cut(self):
+        """超长单句会被硬切"""
+        text = "a" * 1000  # 没有标点
 
-# ============================================================
-# 边界情况
-# ============================================================
-
-
-class TestEdgeCases:
-    """边界情况"""
-
-    def test_single_character(self):
-        assert split_text("一", max_chars=500) == ["一"]
-
-    def test_only_punctuation(self):
-        text = "。。。。。"
-        result = split_text(text, max_chars=500)
-        # 都是标点，也算文本
-        assert len(result) == 1
-
-    def test_only_newlines(self):
-        text = "\n\n\n"
-        result = split_text(text, max_chars=500)
-        assert result == []
-
-    def test_long_text_many_sentences(self):
-        """大量句子的长文本"""
-        sentences = [f"第{i}句的完整内容。" for i in range(100)]
-        text = "".join(sentences)
         result = split_text(text, max_chars=200)
-        assert len(result) >= 5
+
+        assert len(result) > 1
         for seg in result:
             assert len(seg) <= 200
+
+    def test_newline_is_sentence_end(self):
+        """换行符作为句子结束符"""
+        text = "第一行内容\n第二行内容\n第三行内容" * 10
+
+        result = split_text(text, max_chars=50)
+
+        assert len(result) > 1
+        for seg in result:
+            assert len(seg) <= 50
+
+    def test_chinese_punctuation(self):
+        """中文标点（。！？；）作为句子结束符"""
+        text = "你好！今天吃什么？我吃米饭；你呢？我也吃米饭。" * 10
+
+        result = split_text(text, max_chars=80)
+
+        for seg in result:
+            assert len(seg) <= 80
+
+    def test_english_punctuation(self):
+        """英文标点（.!?;）作为句子结束符"""
+        text = "Hello! How are you? I'm fine; thank you. Good bye." * 10
+
+        result = split_text(text, max_chars=80)
+
+        for seg in result:
+            assert len(seg) <= 80
+
+    def test_merged_short_segments(self):
+        """过短的段落会被合并"""
+        # 构造很多短句
+        text = "你好。再见。谢谢。抱歉。好的。不行。可以。去吧。" * 5  # 每句3-4字
+
+        result = split_text(text, max_chars=100)
+
+        # 合并后段数应该比单纯按句切的少
+        assert len(result) < len(text) // 3  # 粗略估计
+        for seg in result:
+            assert len(seg) <= 100
+
+    def test_preserves_content(self):
+        """分段后内容总和与原文基本一致（忽略strip的空白）"""
+        text = "这是测试文本。包含多个句子。用来验证分段正确性。" * 5
+
+        result = split_text(text, max_chars=50)
+
+        # 合并所有分段，去掉空白后应该与原文去掉空白后基本一致
+        combined = "".join(result).replace(" ", "")
+        original = text.strip().replace(" ", "")
+        assert combined == original
+
+    def test_custom_max_chars(self):
+        """支持自定义 max_chars"""
+        text = "测试" * 100  # 200字
+
+        result_50 = split_text(text, max_chars=50)
+        result_100 = split_text(text, max_chars=100)
+
+        # max_chars 越小，段数应该越多
+        assert len(result_50) >= len(result_100)
+
+    def test_single_char_text(self):
+        """单字符文本"""
+        assert split_text("好", max_chars=10) == ["好"]
+
+    def test_text_with_only_punctuation(self):
+        """纯标点文本"""
+        text = "。。。。。。。。。。"  # 10个句号
+        result = split_text(text, max_chars=5)
+
+        assert len(result) >= 1
+        for seg in result:
+            assert len(seg) <= 5
+
+    def test_mixed_content(self):
+        """中英文混合内容"""
+        text = "今天的天气是 sunny and warm。我们去了 park 玩。真的很开心！" * 5
+
+        result = split_text(text, max_chars=80)
+
+        for seg in result:
+            assert len(seg) <= 80

tests/unit/test_verification_code_service.py

@@ -1,11 +1,6 @@
-"""
-验证码服务单元测试（第十七波）
+"""验证码服务单元测试."""
 
-覆盖：
-- VerificationCodeService.generate
-- VerificationCodeService.verify
-- 频控逻辑（冷却 + 每日上限）
-"""
+from __future__ import annotations
 
 from datetime import datetime, timedelta, timezone
 from unittest.mock import MagicMock
@@ -14,436 +9,328 @@ import pytest
 
 from packages.application.auth.verification_code_service import (
     CODE_TYPE_EMAIL_BIND,
-    CODE_TYPE_EMAIL_LOGIN,
     CODE_TYPE_PHONE_BIND,
-    DAILY_LIMIT,
     DEFAULT_TTL_SECONDS,
+    DAILY_LIMIT,
     MAX_ATTEMPTS,
     RESEND_COOLDOWN_SECONDS,
     VerificationCodeService,
+    normalize_phone,
+    validate_email,
+    validate_phone,
 )
 from packages.domain.verification_code import VerificationCode
 
 
 @pytest.fixture
 def mock_repo():
-    """mock 验证码仓储"""
     return MagicMock()
 
 
 @pytest.fixture
-def service(mock_repo):
-    """验证码服务实例"""
-    return VerificationCodeService(repo=mock_repo)
+def code_service(mock_repo):
+    return VerificationCodeService(mock_repo)
 
 
-def make_code(
-    recipient="test@example.com",
-    code_type=CODE_TYPE_EMAIL_BIND,
-    code="123456",
-    ttl=300,
-    used=False,
-    attempts=0,
-    created_at=None,
-):
-    """构造一个验证码实体"""
-    now = created_at or datetime.now(timezone.utc)
-    return VerificationCode(
-        id="test-code-id",
-        recipient=recipient,
-        code=code,
-        code_type=code_type,
-        expires_at=now + timedelta(seconds=ttl),
-        used_at=now if used else None,
-        attempts=attempts,
-        created_at=now,
+@pytest.fixture
+def sample_code():
+    code = VerificationCode.create(
+        recipient="test@example.com",
+        code_type=CODE_TYPE_EMAIL_BIND,
+        ttl_seconds=300,
     )
+    return code
 
 
-# ============================================================
-# generate - 参数校验
-# ============================================================
+class TestVerificationCodeServiceGenerate:
+    """generate 方法测试"""
 
-
-class TestGenerateParamValidation:
-    """generate 参数校验"""
-
-    def test_empty_recipient(self, service):
-        """空接收方"""
-        code, err = service.generate("", CODE_TYPE_EMAIL_BIND)
-        assert code is None
-        assert "不能为空" in err
-
-    def test_whitespace_recipient_stripped(self, service, mock_repo):
-        """前后空格会被 strip 掉，正常生成"""
+    def test_generate_success(self, code_service, mock_repo, sample_code):
+        """生成验证码成功"""
         mock_repo.find_latest.return_value = None
         mock_repo.count_today.return_value = 0
-        code, err = service.generate("  test@example.com  ", CODE_TYPE_EMAIL_BIND)
-        assert err is None
-        assert code is not None
-        assert code.recipient == "test@example.com"
+        mock_repo.save.return_value = None
 
-    def test_invalid_code_type(self, service):
-        """无效验证码类型"""
-        code, err = service.generate("test@example.com", "invalid_type")
-        assert code is None
-        assert "无效的验证码类型" in err
+        code, error = code_service.generate("test@example.com", CODE_TYPE_EMAIL_BIND)
 
-
-# ============================================================
-# generate - 正常生成
-# ============================================================
-
-
-class TestGenerateNormal:
-    """generate 正常生成场景"""
-
-    def test_generate_success(self, service, mock_repo):
-        """正常生成验证码"""
-        mock_repo.find_latest.return_value = None
-        mock_repo.count_today.return_value = 0
-
-        code, err = service.generate("test@example.com", CODE_TYPE_EMAIL_BIND)
-
-        assert err is None
+        assert error is None
         assert code is not None
         assert code.recipient == "test@example.com"
         assert code.code_type == CODE_TYPE_EMAIL_BIND
-        assert len(code.code) == 6
-        assert code.code.isdigit()
-        assert not code.is_used
-        assert not code.is_expired
         mock_repo.save.assert_called_once()
 
-    def test_custom_code(self, service, mock_repo):
-        """自定义验证码"""
-        mock_repo.find_latest.return_value = None
-        mock_repo.count_today.return_value = 0
+    def test_generate_empty_recipient(self, code_service):
+        """空接收方返回错误"""
+        code, error = code_service.generate("", CODE_TYPE_EMAIL_BIND)
+        assert code is None
+        assert "接收方不能为空" in error
 
-        code, err = service.generate("test@example.com", CODE_TYPE_EMAIL_BIND, custom_code="888888")
+    def test_generate_invalid_type(self, code_service):
+        """无效验证码类型返回错误"""
+        code, error = code_service.generate("test@example.com", "invalid_type")
+        assert code is None
+        assert "无效的验证码类型" in error
 
-        assert err is None
-        assert code.code == "888888"
-
-    def test_custom_ttl(self, service, mock_repo):
-        """自定义有效期"""
-        mock_repo.find_latest.return_value = None
-        mock_repo.count_today.return_value = 0
-
-        code, err = service.generate("test@example.com", CODE_TYPE_EMAIL_BIND, ttl_seconds=60)
-
-        assert err is None
-        # 过期时间 - 创建时间 ≈ 60 秒
-        delta = (code.expires_at - code.created_at).total_seconds()
-        assert delta == 60
-
-    def test_default_ttl_used_when_not_specified(self, service, mock_repo):
-        """未指定 ttl 时使用默认值"""
-        mock_repo.find_latest.return_value = None
-        mock_repo.count_today.return_value = 0
-
-        code, err = service.generate("test@example.com", CODE_TYPE_EMAIL_BIND)
-
-        assert err is None
-        delta = (code.expires_at - code.created_at).total_seconds()
-        assert delta == DEFAULT_TTL_SECONDS
-
-    def test_phone_bind_type(self, service, mock_repo):
-        """手机号绑定类型也支持"""
-        mock_repo.find_latest.return_value = None
-        mock_repo.count_today.return_value = 0
-
-        code, err = service.generate("13800138000", CODE_TYPE_PHONE_BIND)
-
-        assert err is None
-        assert code.code_type == CODE_TYPE_PHONE_BIND
-
-
-# ============================================================
-# generate - 频控
-# ============================================================
-
-
-class TestGenerateRateLimit:
-    """generate 频控逻辑"""
-
-    def test_resend_cooldown_blocked(self, service, mock_repo):
-        """冷却期内发送被拒绝"""
-        # 10 秒前刚发过一条
-        recent = make_code(created_at=datetime.now(timezone.utc) - timedelta(seconds=10))
-        mock_repo.find_latest.return_value = recent
+    def test_generate_cooldown(self, code_service, mock_repo, sample_code):
+        """冷却期内返回频控错误"""
+        # 最新的验证码刚创建10秒前
+        sample_code.created_at = datetime.now(timezone.utc) - timedelta(seconds=10)
+        mock_repo.find_latest.return_value = sample_code
         mock_repo.count_today.return_value = 1
 
-        code, err = service.generate("test@example.com", CODE_TYPE_EMAIL_BIND)
+        code, error = code_service.generate("test@example.com", CODE_TYPE_EMAIL_BIND)
 
         assert code is None
-        assert "发送太频繁" in err
-        assert "秒后再试" in err
-        # 等待时间应接近 50 秒（60-10）
-        # 提取数字验证范围
-        import re
+        assert "发送太频繁" in error
+        assert "秒后再试" in error
 
-        match = re.search(r"(\d+)\s*秒", err)
-        assert match
-        wait = int(match.group(1))
-        assert 45 <= wait <= 55
-
-    def test_resend_after_cooldown_ok(self, service, mock_repo):
-        """超过冷却期可以重发"""
-        # 2 分钟前发的，已过冷却
-        old = make_code(created_at=datetime.now(timezone.utc) - timedelta(seconds=120))
-        mock_repo.find_latest.return_value = old
-        mock_repo.count_today.return_value = 1
-
-        code, err = service.generate("test@example.com", CODE_TYPE_EMAIL_BIND)
-
-        assert err is None
-        assert code is not None
-
-    def test_daily_limit_reached(self, service, mock_repo):
-        """达到每日上限"""
-        # 没有最近的（过了冷却），但今日已达上限
-        old = make_code(created_at=datetime.now(timezone.utc) - timedelta(hours=2))
-        mock_repo.find_latest.return_value = old
+    def test_generate_daily_limit_exceeded(self, code_service, mock_repo):
+        """超过每日上限返回错误"""
+        mock_repo.find_latest.return_value = None  # 没有冷却期问题
         mock_repo.count_today.return_value = DAILY_LIMIT
 
-        code, err = service.generate("test@example.com", CODE_TYPE_EMAIL_BIND)
+        code, error = code_service.generate("test@example.com", CODE_TYPE_EMAIL_BIND)
 
         assert code is None
-        assert "今日发送次数已达上限" in err
+        assert "今日发送次数已达上限" in error
 
-    def test_daily_limit_not_reached(self, service, mock_repo):
-        """未达每日上限可以发"""
-        mock_repo.find_latest.return_value = None
-        mock_repo.count_today.return_value = DAILY_LIMIT - 1
-
-        code, err = service.generate("test@example.com", CODE_TYPE_EMAIL_BIND)
-
-        assert err is None
-        assert code is not None
-
-    def test_no_history_first_time_ok(self, service, mock_repo):
-        """首次发送，无历史记录"""
+    def test_generate_recipient_stripped(self, code_service, mock_repo, sample_code):
+        """recipient 会被 strip"""
         mock_repo.find_latest.return_value = None
         mock_repo.count_today.return_value = 0
+        mock_repo.save.return_value = None
 
-        code, err = service.generate("test@example.com", CODE_TYPE_EMAIL_BIND)
+        code_service.generate("  test@example.com  ", CODE_TYPE_EMAIL_BIND)
 
-        assert err is None
-        assert code is not None
-        mock_repo.save.assert_called_once()
+        # 传给 repo 的应该是 strip 后的值
+        save_call = mock_repo.save.call_args[0][0]
+        assert save_call.recipient == "test@example.com"
 
-
-# ============================================================
-# generate - 自定义频控参数
-# ============================================================
-
-
-class TestGenerateCustomRateLimitParams:
-    """自定义频控参数"""
-
-    def test_custom_cooldown(self, mock_repo):
-        """自定义冷却时间"""
-        svc = VerificationCodeService(repo=mock_repo, resend_cooldown=300, daily_limit=5)
-        # 60 秒前发的，默认冷却 60 秒就够了，但这里设了 300 秒
-        recent = make_code(created_at=datetime.now(timezone.utc) - timedelta(seconds=60))
-        mock_repo.find_latest.return_value = recent
-        mock_repo.count_today.return_value = 1
-
-        code, err = svc.generate("test@example.com", CODE_TYPE_EMAIL_BIND)
-
-        assert code is None
-        assert "发送太频繁" in err
-
-    def test_custom_daily_limit(self, mock_repo):
-        """自定义每日上限"""
-        svc = VerificationCodeService(repo=mock_repo, resend_cooldown=60, daily_limit=3)
+    def test_generate_custom_code(self, code_service, mock_repo):
+        """使用自定义验证码"""
         mock_repo.find_latest.return_value = None
-        mock_repo.count_today.return_value = 3
-
-        code, err = svc.generate("test@example.com", CODE_TYPE_EMAIL_BIND)
-
-        assert code is None
-        assert "今日发送次数已达上限" in err
-
-
-# ============================================================
-# verify - 参数校验
-# ============================================================
-
-
-class TestVerifyParamValidation:
-    """verify 参数校验"""
-
-    def test_empty_recipient(self, service):
-        """空接收方"""
-        ok, err = service.verify("", CODE_TYPE_EMAIL_BIND, "123456")
-        assert not ok
-        assert "参数不完整" in err
-
-    def test_empty_code(self, service):
-        """空验证码"""
-        ok, err = service.verify("test@example.com", CODE_TYPE_EMAIL_BIND, "")
-        assert not ok
-        assert "参数不完整" in err
-
-    def test_whitespace_stripped(self, service, mock_repo):
-        """前后空格会被 strip"""
-        code = make_code(code="123456")
-        mock_repo.find_latest.return_value = code
         mock_repo.count_today.return_value = 0
+        mock_repo.save.return_value = None
 
-        ok, err = service.verify("  test@example.com  ", CODE_TYPE_EMAIL_BIND, "  123456  ")
+        code, _ = code_service.generate(
+            "test@example.com", CODE_TYPE_EMAIL_BIND, custom_code="123456"
+        )
+        assert code.code == "123456"
 
-        assert ok
-        assert err is None
+    def test_generate_custom_ttl(self, code_service, mock_repo):
+        """自定义 TTL"""
+        mock_repo.find_latest.return_value = None
+        mock_repo.count_today.return_value = 0
+        mock_repo.save.return_value = None
+
+        code, _ = code_service.generate(
+            "test@example.com", CODE_TYPE_EMAIL_BIND, ttl_seconds=600
+        )
+        assert code is not None
 
 
-# ============================================================
-# verify - 正常验证
-# ============================================================
+class TestVerificationCodeServiceVerify:
+    """verify 方法测试"""
 
+    def test_verify_success(self, code_service, mock_repo, sample_code):
+        """验证成功"""
+        mock_repo.find_latest.return_value = sample_code
 
-class TestVerifyNormal:
-    """verify 正常验证场景"""
+        success, error = code_service.verify(
+            "test@example.com", CODE_TYPE_EMAIL_BIND, sample_code.code
+        )
 
-    def test_verify_success_consume(self, service, mock_repo):
-        """验证成功并消耗"""
-        code = make_code(code="123456")
-        mock_repo.find_latest.return_value = code
+        assert success is True
+        assert error is None
+        assert sample_code.is_used is True
 
-        ok, err = service.verify("test@example.com", CODE_TYPE_EMAIL_BIND, "123456", consume=True)
+    def test_verify_wrong_code(self, code_service, mock_repo, sample_code):
+        """验证码错误"""
+        mock_repo.find_latest.return_value = sample_code
 
-        assert ok
-        assert err is None
-        assert code.is_used  # 被标记为已使用
-        # save 被调用了两次：一次 increment_attempts 后，一次 mark_used 后
-        assert mock_repo.save.call_count >= 2
+        success, error = code_service.verify(
+            "test@example.com", CODE_TYPE_EMAIL_BIND, "wrongcode"
+        )
 
-    def test_verify_success_no_consume(self, service, mock_repo):
-        """验证成功但不消耗"""
-        code = make_code(code="123456")
-        mock_repo.find_latest.return_value = code
+        assert success is False
+        assert "验证码错误" in error
 
-        ok, err = service.verify("test@example.com", CODE_TYPE_EMAIL_BIND, "123456", consume=False)
-
-        assert ok
-        assert err is None
-        assert not code.is_used  # 未被标记
-
-    def test_verify_code_not_found(self, service, mock_repo):
+    def test_verify_not_found(self, code_service, mock_repo):
         """验证码不存在"""
         mock_repo.find_latest.return_value = None
 
-        ok, err = service.verify("test@example.com", CODE_TYPE_EMAIL_BIND, "123456")
+        success, error = code_service.verify(
+            "test@example.com", CODE_TYPE_EMAIL_BIND, "123456"
+        )
 
-        assert not ok
-        assert "不存在或已过期" in err
+        assert success is False
+        assert "不存在或已过期" in error
 
-    def test_verify_wrong_code(self, service, mock_repo):
-        """验证码错误"""
-        code = make_code(code="123456")
-        mock_repo.find_latest.return_value = code
-
-        ok, err = service.verify("test@example.com", CODE_TYPE_EMAIL_BIND, "999999")
-
-        assert not ok
-        assert "验证码错误" in err
-        # 尝试次数增加了
-        assert code.attempts == 1
-
-    def test_verify_already_used(self, service, mock_repo):
-        """验证码已使用"""
-        code = make_code(code="123456", used=True)
-        mock_repo.find_latest.return_value = code
-
-        ok, err = service.verify("test@example.com", CODE_TYPE_EMAIL_BIND, "123456")
-
-        assert not ok
-        assert "已使用" in err
-
-    def test_verify_expired(self, service, mock_repo):
+    def test_verify_expired(self, code_service, mock_repo):
         """验证码已过期"""
-        code = make_code(code="123456", ttl=-60)  # 已过期 60 秒
-        mock_repo.find_latest.return_value = code
+        expired_code = VerificationCode.create(
+            recipient="test@example.com",
+            code_type=CODE_TYPE_EMAIL_BIND,
+            ttl_seconds=1,  # 1秒过期
+        )
+        # 手动设置过期时间
+        expired_code.expires_at = datetime.now(timezone.utc) - timedelta(seconds=10)
+        mock_repo.find_latest.return_value = expired_code
 
-        ok, err = service.verify("test@example.com", CODE_TYPE_EMAIL_BIND, "123456")
+        success, error = code_service.verify(
+            "test@example.com", CODE_TYPE_EMAIL_BIND, expired_code.code
+        )
 
-        assert not ok
-        assert "已过期" in err
+        assert success is False
+        assert "已过期" in error
 
-    def test_verify_attempts_exceeded(self, service, mock_repo):
-        """超过最大尝试次数"""
-        code = make_code(code="123456", attempts=MAX_ATTEMPTS)
-        mock_repo.find_latest.return_value = code
+    def test_verify_already_used(self, code_service, mock_repo, sample_code):
+        """验证码已使用"""
+        sample_code.mark_used()
+        mock_repo.find_latest.return_value = sample_code
 
-        ok, err = service.verify("test@example.com", CODE_TYPE_EMAIL_BIND, "123456")
+        success, error = code_service.verify(
+            "test@example.com", CODE_TYPE_EMAIL_BIND, sample_code.code
+        )
 
-        assert not ok
-        assert "验证次数过多" in err
-        # verify 里先 increment_attempts 再判断，所以这里 attempts 应该是 MAX_ATTEMPTS + 1
-        assert code.attempts == MAX_ATTEMPTS + 1
+        assert success is False
+        assert "已使用" in error
 
-    def test_attempts_increment_on_wrong_code(self, service, mock_repo):
-        """错误验证码会增加尝试次数"""
-        code = make_code(code="123456", attempts=0)
-        mock_repo.find_latest.return_value = code
+    def test_verify_max_attempts_exceeded(self, code_service, mock_repo, sample_code):
+        """尝试次数过多"""
+        # 先把尝试次数加到超过上限
+        for _ in range(MAX_ATTEMPTS + 1):
+            sample_code.increment_attempts()
+        mock_repo.find_latest.return_value = sample_code
 
-        service.verify("test@example.com", CODE_TYPE_EMAIL_BIND, "000000")
-        assert code.attempts == 1
+        success, error = code_service.verify(
+            "test@example.com", CODE_TYPE_EMAIL_BIND, sample_code.code
+        )
 
-        service.verify("test@example.com", CODE_TYPE_EMAIL_BIND, "000001")
-        assert code.attempts == 2
+        assert success is False
+        assert "验证次数过多" in error
+
+    def test_verify_empty_params(self, code_service):
+        """空参数返回错误"""
+        success, error = code_service.verify("", CODE_TYPE_EMAIL_BIND, "123456")
+        assert success is False
+        assert "参数不完整" in error
+
+        success, error = code_service.verify("test@example.com", CODE_TYPE_EMAIL_BIND, "")
+        assert success is False
+        assert "参数不完整" in error
+
+    def test_verify_increments_attempts(self, code_service, mock_repo, sample_code):
+        """验证会增加尝试次数"""
+        initial_attempts = sample_code.attempts
+        mock_repo.find_latest.return_value = sample_code
+
+        code_service.verify("test@example.com", CODE_TYPE_EMAIL_BIND, "wrong")
+
+        assert sample_code.attempts == initial_attempts + 1
+
+    def test_verify_no_consume(self, code_service, mock_repo, sample_code):
+        """consume=False 时不标记为已使用"""
+        mock_repo.find_latest.return_value = sample_code
+
+        success, _ = code_service.verify(
+            "test@example.com", CODE_TYPE_EMAIL_BIND, sample_code.code, consume=False
+        )
+
+        assert success is True
+        assert sample_code.is_used is False
 
 
-# ============================================================
-# verify - 不同 code_type 互不干扰
-# ============================================================
+class TestVerifyPhone:
+    """validate_phone 函数测试"""
+
+    def test_valid_phone(self):
+        """有效手机号"""
+        ok, err = validate_phone("13800000001")
+        assert ok is True
+        assert err == ""
+
+    def test_valid_phone_with_plus86(self):
+        """带 +86 前缀的手机号"""
+        ok, err = validate_phone("+8613800000001")
+        assert ok is True
+
+    def test_invalid_phone_short(self):
+        """太短的手机号"""
+        ok, err = validate_phone("123")
+        assert ok is False
+        assert "格式不正确" in err
+
+    def test_invalid_phone_wrong_prefix(self):
+        """号段不对的手机号"""
+        ok, err = validate_phone("11000000000")
+        assert ok is False
+
+    def test_empty_phone(self):
+        """空手机号"""
+        ok, err = validate_phone("")
+        assert ok is False
+        assert "不能为空" in err
+
+    def test_phone_with_spaces(self):
+        """带空格的手机号会被 strip"""
+        ok, _ = validate_phone("  13800000001  ")
+        assert ok is True
 
 
-class TestVerifyCodeTypeIsolation:
-    """不同验证码类型互不干扰"""
+class TestNormalizePhone:
+    """normalize_phone 函数测试"""
 
-    def test_email_bind_vs_email_login(self, service, mock_repo):
-        """用 email_login 类型的验证码去验证 email_bind 应该失败"""
-        code = make_code(code_type=CODE_TYPE_EMAIL_LOGIN, code="123456")
-        mock_repo.find_latest.return_value = None  # 按 email_bind 查不到
+    def test_removes_plus86(self):
+        """去掉 +86 前缀"""
+        assert normalize_phone("+8613800000001") == "13800000001"
 
-        # find_latest 按 code_type 查询，传 email_bind 返回 None
-        def side_effect(recipient, ct):
-            if ct == CODE_TYPE_EMAIL_LOGIN:
-                return code
-            return None
+    def test_no_prefix_stays_same(self):
+        """没有前缀保持不变"""
+        assert normalize_phone("13800000001") == "13800000001"
 
-        mock_repo.find_latest.side_effect = side_effect
-
-        ok, err = service.verify("test@example.com", CODE_TYPE_EMAIL_BIND, "123456")
-        assert not ok
-        assert "不存在或已过期" in err
+    def test_strips_whitespace(self):
+        """去掉两端空白"""
+        assert normalize_phone("  13800000001  ") == "13800000001"
 
 
-# ============================================================
-# 常量值检查
-# ============================================================
+class TestValidateEmail:
+    """validate_email 函数测试"""
 
+    def test_valid_email(self):
+        """有效邮箱"""
+        ok, err = validate_email("test@example.com")
+        assert ok is True
+        assert err == ""
 
-class TestConstants:
-    """常量默认值校验"""
+    def test_valid_email_with_subdomain(self):
+        """带子域名的邮箱"""
+        ok, _ = validate_email("user@mail.example.com")
+        assert ok is True
 
-    def test_default_cooldown_60(self):
-        assert RESEND_COOLDOWN_SECONDS == 60
+    def test_valid_email_with_plus(self):
+        """带 + 号的邮箱"""
+        ok, _ = validate_email("user+tag@example.com")
+        assert ok is True
 
-    def test_default_daily_limit_10(self):
-        assert DAILY_LIMIT == 10
+    def test_invalid_email_no_at(self):
+        """没有 @ 的邮箱"""
+        ok, err = validate_email("notanemail")
+        assert ok is False
+        assert "格式不正确" in err
 
-    def test_default_max_attempts_5(self):
-        assert MAX_ATTEMPTS == 5
+    def test_invalid_email_no_domain(self):
+        """没有域名的邮箱"""
+        ok, err = validate_email("user@")
+        assert ok is False
 
-    def test_default_ttl_300(self):
-        assert DEFAULT_TTL_SECONDS == 300
+    def test_empty_email(self):
+        """空邮箱"""
+        ok, err = validate_email("")
+        assert ok is False
+        assert "不能为空" in err
 
-    def test_valid_code_types_count(self):
-        """5 种验证码类型"""
-        from packages.application.auth.verification_code_service import VALID_CODE_TYPES
-
-        assert len(VALID_CODE_TYPES) == 5
+    def test_email_with_spaces(self):
+        """带空格的邮箱会被 strip"""
+        ok, _ = validate_email("  test@example.com  ")
+        assert ok is True

tests/unit/test_video_share_use_cases.py

@@ -0,0 +1,510 @@
+"""视频分享 UseCase 单元测试."""
+
+from __future__ import annotations
+
+from datetime import datetime, timedelta, timezone
+from unittest.mock import MagicMock
+
+import pytest
+
+from packages.application.video_share.commands import (
+    CreateShareCommand,
+    UpdateShareCommand,
+)
+from packages.application.video_share.use_cases import (
+    AccessShareUseCase,
+    CreateShareUseCase,
+    GetShareByTokenUseCase,
+    InvalidPasswordError,
+    ListSharesByUserUseCase,
+    ListSharesByVideoUseCase,
+    NotFoundError,
+    PasswordRequiredError,
+    RecordShareDownloadUseCase,
+    RevokeShareUseCase,
+    ShareExpiredError,
+    UpdateShareUseCase,
+    VideoNotFoundError,
+)
+from packages.domain.generated_video import GeneratedVideo
+from packages.domain.video_share import VideoShare
+
+
+@pytest.fixture
+def mock_share_repo():
+    return MagicMock()
+
+
+@pytest.fixture
+def mock_video_repo():
+    return MagicMock()
+
+
+@pytest.fixture
+def sample_video():
+    video = MagicMock(spec=GeneratedVideo)
+    video.id = "video_001"
+    video.user_id = "user_001"
+    return video
+
+
+@pytest.fixture
+def sample_share():
+    share = VideoShare.create(
+        video_id="video_001",
+        user_id="user_001",
+    )
+    return share
+
+
+@pytest.fixture
+def sample_share_with_password():
+    share = VideoShare.create(
+        video_id="video_001",
+        user_id="user_001",
+        password="secret123",
+    )
+    return share
+
+
+@pytest.fixture
+def sample_share_expired():
+    # 直接构造已过期的分享（不经过create方法的校验）
+    share = VideoShare(
+        id="share_expired_001",
+        video_id="video_001",
+        user_id="user_001",
+        share_token="expiredtoken123",
+        expires_at=datetime.now(timezone.utc) - timedelta(hours=1),
+    )
+    return share
+
+
+class TestCreateShareUseCase:
+    """CreateShareUseCase 测试"""
+
+    def test_create_share_success(self, mock_share_repo, mock_video_repo, sample_video):
+        """正常创建分享链接"""
+        mock_video_repo.get.return_value = sample_video
+        mock_share_repo.create.side_effect = lambda s: s
+
+        use_case = CreateShareUseCase(mock_share_repo, mock_video_repo)
+        command = CreateShareCommand(video_id="video_001", user_id="user_001")
+        result = use_case.execute(command)
+
+        assert result.video_id == "video_001"
+        assert result.user_id == "user_001"
+        assert result.share_token is not None
+        assert result.has_password is False
+        mock_share_repo.create.assert_called_once()
+
+    def test_create_share_with_password(self, mock_share_repo, mock_video_repo, sample_video):
+        """创建带密码的分享"""
+        mock_video_repo.get.return_value = sample_video
+        mock_share_repo.create.side_effect = lambda s: s
+
+        use_case = CreateShareUseCase(mock_share_repo, mock_video_repo)
+        command = CreateShareCommand(
+            video_id="video_001",
+            user_id="user_001",
+            password="mypassword",
+        )
+        result = use_case.execute(command)
+
+        assert result.has_password is True
+        assert result.password_hash is not None
+
+    def test_create_share_with_expiry(self, mock_share_repo, mock_video_repo, sample_video):
+        """创建带有效期的分享"""
+        mock_video_repo.get.return_value = sample_video
+        mock_share_repo.create.side_effect = lambda s: s
+
+        future = datetime.now(timezone.utc) + timedelta(days=7)
+        use_case = CreateShareUseCase(mock_share_repo, mock_video_repo)
+        command = CreateShareCommand(
+            video_id="video_001",
+            user_id="user_001",
+            expires_at=future,
+        )
+        result = use_case.execute(command)
+
+        assert result.expires_at == future
+
+    def test_create_share_video_not_found(self, mock_share_repo, mock_video_repo):
+        """视频不存在时抛出 VideoNotFoundError"""
+        mock_video_repo.get.return_value = None
+
+        use_case = CreateShareUseCase(mock_share_repo, mock_video_repo)
+        command = CreateShareCommand(video_id="nonexistent", user_id="user_001")
+
+        with pytest.raises(VideoNotFoundError):
+            use_case.execute(command)
+
+        mock_share_repo.create.assert_not_called()
+
+    def test_create_share_wrong_user(self, mock_share_repo, mock_video_repo, sample_video):
+        """非视频所有者创建分享失败"""
+        sample_video.user_id = "user_other"
+        mock_video_repo.get.return_value = sample_video
+
+        use_case = CreateShareUseCase(mock_share_repo, mock_video_repo)
+        command = CreateShareCommand(video_id="video_001", user_id="user_001")
+
+        with pytest.raises(VideoNotFoundError):
+            use_case.execute(command)
+
+        mock_share_repo.create.assert_not_called()
+
+
+class TestGetShareByTokenUseCase:
+    """GetShareByTokenUseCase 测试"""
+
+    def test_get_share_success(self, mock_share_repo, sample_share):
+        """通过 token 正常获取分享信息"""
+        mock_share_repo.get_by_token.return_value = sample_share
+
+        use_case = GetShareByTokenUseCase(mock_share_repo)
+        result = use_case.execute(sample_share.share_token)
+
+        assert result.id == sample_share.id
+        mock_share_repo.get_by_token.assert_called_once_with(sample_share.share_token)
+
+    def test_get_share_not_found(self, mock_share_repo):
+        """token 不存在时抛出 NotFoundError"""
+        mock_share_repo.get_by_token.return_value = None
+
+        use_case = GetShareByTokenUseCase(mock_share_repo)
+
+        with pytest.raises(NotFoundError):
+            use_case.execute("invalid_token")
+
+    def test_get_share_expired_raises(self, mock_share_repo, sample_share_expired):
+        """已过期的分享不可访问"""
+        mock_share_repo.get_by_token.return_value = sample_share_expired
+
+        use_case = GetShareByTokenUseCase(mock_share_repo)
+
+        with pytest.raises(ShareExpiredError):
+            use_case.execute(sample_share_expired.share_token)
+
+
+class TestAccessShareUseCase:
+    """AccessShareUseCase 测试"""
+
+    def test_access_without_password(self, mock_share_repo, mock_video_repo, sample_share, sample_video):
+        """无密码分享直接访问成功"""
+        mock_share_repo.get_by_token.return_value = sample_share
+        mock_video_repo.get.return_value = sample_video
+
+        use_case = AccessShareUseCase(mock_share_repo, mock_video_repo)
+        result = use_case.execute(sample_share.share_token)
+
+        assert result.share.id == sample_share.id
+        assert result.video.id == "video_001"
+        assert result.password_verified is True
+        mock_share_repo.increment_view.assert_called_once_with(sample_share.id)
+        assert sample_share.view_count == 1
+
+    def test_access_with_correct_password(self, mock_share_repo, mock_video_repo, sample_share_with_password, sample_video):
+        """带密码分享输入正确密码访问成功"""
+        mock_share_repo.get_by_token.return_value = sample_share_with_password
+        mock_video_repo.get.return_value = sample_video
+
+        use_case = AccessShareUseCase(mock_share_repo, mock_video_repo)
+        result = use_case.execute(sample_share_with_password.share_token, password="secret123")
+
+        assert result.password_verified is True
+        mock_share_repo.increment_view.assert_called_once()
+
+    def test_access_password_required_but_not_provided(self, mock_share_repo, mock_video_repo, sample_share_with_password):
+        """带密码分享不输入密码抛出 PasswordRequiredError"""
+        mock_share_repo.get_by_token.return_value = sample_share_with_password
+
+        use_case = AccessShareUseCase(mock_share_repo, mock_video_repo)
+
+        with pytest.raises(PasswordRequiredError):
+            use_case.execute(sample_share_with_password.share_token)
+
+        mock_share_repo.increment_view.assert_not_called()
+
+    def test_access_wrong_password(self, mock_share_repo, mock_video_repo, sample_share_with_password):
+        """密码错误抛出 InvalidPasswordError"""
+        mock_share_repo.get_by_token.return_value = sample_share_with_password
+
+        use_case = AccessShareUseCase(mock_share_repo, mock_video_repo)
+
+        with pytest.raises(InvalidPasswordError):
+            use_case.execute(sample_share_with_password.share_token, password="wrongpass")
+
+        mock_share_repo.increment_view.assert_not_called()
+
+    def test_access_share_not_found(self, mock_share_repo, mock_video_repo):
+        """分享不存在抛出 NotFoundError"""
+        mock_share_repo.get_by_token.return_value = None
+
+        use_case = AccessShareUseCase(mock_share_repo, mock_video_repo)
+
+        with pytest.raises(NotFoundError):
+            use_case.execute("invalid_token")
+
+    def test_access_expired_share(self, mock_share_repo, mock_video_repo, sample_share_expired):
+        """已过期分享不可访问"""
+        mock_share_repo.get_by_token.return_value = sample_share_expired
+
+        use_case = AccessShareUseCase(mock_share_repo, mock_video_repo)
+
+        with pytest.raises(ShareExpiredError):
+            use_case.execute(sample_share_expired.share_token)
+
+        mock_share_repo.increment_view.assert_not_called()
+
+    def test_access_video_not_found(self, mock_share_repo, mock_video_repo, sample_share):
+        """分享存在但视频不存在"""
+        mock_share_repo.get_by_token.return_value = sample_share
+        mock_video_repo.get.return_value = None
+
+        use_case = AccessShareUseCase(mock_share_repo, mock_video_repo)
+
+        with pytest.raises(VideoNotFoundError):
+            use_case.execute(sample_share.share_token)
+
+
+class TestListSharesByVideoUseCase:
+    """ListSharesByVideoUseCase 测试"""
+
+    def test_list_by_video(self, mock_share_repo, sample_share):
+        """列出某个视频的所有分享"""
+        mock_share_repo.list_by_video.return_value = [sample_share]
+
+        use_case = ListSharesByVideoUseCase(mock_share_repo)
+        result = use_case.execute("video_001", "user_001")
+
+        assert len(result) == 1
+        mock_share_repo.list_by_video.assert_called_once_with("video_001", "user_001")
+
+    def test_list_by_video_empty(self, mock_share_repo):
+        """视频没有分享记录时返回空列表"""
+        mock_share_repo.list_by_video.return_value = []
+
+        use_case = ListSharesByVideoUseCase(mock_share_repo)
+        result = use_case.execute("video_001", "user_001")
+
+        assert result == []
+
+
+class TestListSharesByUserUseCase:
+    """ListSharesByUserUseCase 测试"""
+
+    def test_list_by_user(self, mock_share_repo, sample_share):
+        """列出用户的所有分享"""
+        mock_share_repo.list_by_user.return_value = [sample_share]
+        mock_share_repo.count_by_user.return_value = 1
+
+        use_case = ListSharesByUserUseCase(mock_share_repo)
+        items, total = use_case.execute("user_001")
+
+        assert len(items) == 1
+        assert total == 1
+        mock_share_repo.list_by_user.assert_called_once_with("user_001", skip=0, limit=20)
+
+    def test_list_by_user_with_pagination(self, mock_share_repo):
+        """带分页参数查询"""
+        mock_share_repo.list_by_user.return_value = []
+        mock_share_repo.count_by_user.return_value = 50
+
+        use_case = ListSharesByUserUseCase(mock_share_repo)
+        items, total = use_case.execute("user_001", skip=10, limit=5)
+
+        assert total == 50
+        mock_share_repo.list_by_user.assert_called_once_with("user_001", skip=10, limit=5)
+
+    def test_list_by_user_empty(self, mock_share_repo):
+        """用户没有分享记录"""
+        mock_share_repo.list_by_user.return_value = []
+        mock_share_repo.count_by_user.return_value = 0
+
+        use_case = ListSharesByUserUseCase(mock_share_repo)
+        items, total = use_case.execute("user_001")
+
+        assert items == []
+        assert total == 0
+
+
+class TestUpdateShareUseCase:
+    """UpdateShareUseCase 测试"""
+
+    def test_update_password(self, mock_share_repo, sample_share):
+        """更新分享密码"""
+        mock_share_repo.get_by_id.return_value = sample_share
+        mock_share_repo.update.side_effect = lambda s: s
+
+        use_case = UpdateShareUseCase(mock_share_repo)
+        command = UpdateShareCommand(
+            share_id=sample_share.id,
+            user_id="user_001",
+            password="newpassword",
+        )
+        result = use_case.execute(command)
+
+        assert result.has_password is True
+        mock_share_repo.update.assert_called_once()
+
+    def test_clear_password(self, mock_share_repo, sample_share_with_password):
+        """清除分享密码（空字符串）"""
+        mock_share_repo.get_by_id.return_value = sample_share_with_password
+        mock_share_repo.update.side_effect = lambda s: s
+
+        use_case = UpdateShareUseCase(mock_share_repo)
+        command = UpdateShareCommand(
+            share_id=sample_share_with_password.id,
+            user_id="user_001",
+            password="",  # 空字符串表示清除
+        )
+        result = use_case.execute(command)
+
+        assert result.has_password is False
+        assert result.password_hash is None
+
+    def test_update_password_none_no_change(self, mock_share_repo, sample_share_with_password):
+        """password=None 不修改密码"""
+        original_hash = sample_share_with_password.password_hash
+        mock_share_repo.get_by_id.return_value = sample_share_with_password
+        mock_share_repo.update.side_effect = lambda s: s
+
+        use_case = UpdateShareUseCase(mock_share_repo)
+        command = UpdateShareCommand(
+            share_id=sample_share_with_password.id,
+            user_id="user_001",
+            password=None,  # None表示不修改
+        )
+        result = use_case.execute(command)
+
+        assert result.password_hash == original_hash
+
+    def test_update_expires_at(self, mock_share_repo, sample_share):
+        """更新有效期"""
+        mock_share_repo.get_by_id.return_value = sample_share
+        mock_share_repo.update.side_effect = lambda s: s
+
+        future = datetime.now(timezone.utc) + timedelta(days=3)
+        use_case = UpdateShareUseCase(mock_share_repo)
+        command = UpdateShareCommand(
+            share_id=sample_share.id,
+            user_id="user_001",
+            expires_at=future,
+        )
+        result = use_case.execute(command)
+
+        assert result.expires_at == future
+
+    def test_update_expires_at_past_raises(self, mock_share_repo, sample_share):
+        """设置过去的有效期抛出 ValueError"""
+        mock_share_repo.get_by_id.return_value = sample_share
+
+        past = datetime.now(timezone.utc) - timedelta(hours=1)
+        use_case = UpdateShareUseCase(mock_share_repo)
+        command = UpdateShareCommand(
+            share_id=sample_share.id,
+            user_id="user_001",
+            expires_at=past,
+        )
+
+        with pytest.raises(ValueError, match="expires_at cannot be in the past"):
+            use_case.execute(command)
+
+        mock_share_repo.update.assert_not_called()
+
+    def test_update_share_not_found(self, mock_share_repo):
+        """分享不存在抛出 NotFoundError"""
+        mock_share_repo.get_by_id.return_value = None
+
+        use_case = UpdateShareUseCase(mock_share_repo)
+        command = UpdateShareCommand(
+            share_id="nonexistent",
+            user_id="user_001",
+            password="newpass",
+        )
+
+        with pytest.raises(NotFoundError):
+            use_case.execute(command)
+
+        mock_share_repo.update.assert_not_called()
+
+
+class TestRevokeShareUseCase:
+    """RevokeShareUseCase 测试"""
+
+    def test_revoke_success(self, mock_share_repo, sample_share):
+        """撤销分享成功"""
+        mock_share_repo.get_by_id.return_value = sample_share
+        mock_share_repo.delete.return_value = True
+
+        use_case = RevokeShareUseCase(mock_share_repo)
+        result = use_case.execute(sample_share.id, "user_001")
+
+        assert result is True
+        mock_share_repo.delete.assert_called_once_with(sample_share.id, "user_001")
+
+    def test_revoke_not_found(self, mock_share_repo):
+        """分享不存在抛出 NotFoundError"""
+        mock_share_repo.get_by_id.return_value = None
+
+        use_case = RevokeShareUseCase(mock_share_repo)
+
+        with pytest.raises(NotFoundError):
+            use_case.execute("nonexistent", "user_001")
+
+        mock_share_repo.delete.assert_not_called()
+
+
+class TestRecordShareDownloadUseCase:
+    """RecordShareDownloadUseCase 测试"""
+
+    def test_record_download_no_password(self, mock_share_repo, sample_share):
+        """无密码分享记录下载"""
+        mock_share_repo.get_by_token.return_value = sample_share
+
+        use_case = RecordShareDownloadUseCase(mock_share_repo)
+        use_case.execute(sample_share.share_token)
+
+        mock_share_repo.increment_download.assert_called_once_with(sample_share.id)
+
+    def test_record_download_with_password(self, mock_share_repo, sample_share_with_password):
+        """带密码分享正确密码记录下载"""
+        mock_share_repo.get_by_token.return_value = sample_share_with_password
+
+        use_case = RecordShareDownloadUseCase(mock_share_repo)
+        use_case.execute(sample_share_with_password.share_token, password="secret123")
+
+        mock_share_repo.increment_download.assert_called_once()
+
+    def test_record_download_wrong_password(self, mock_share_repo, sample_share_with_password):
+        """密码错误不记录下载"""
+        mock_share_repo.get_by_token.return_value = sample_share_with_password
+
+        use_case = RecordShareDownloadUseCase(mock_share_repo)
+
+        with pytest.raises(InvalidPasswordError):
+            use_case.execute(sample_share_with_password.share_token, password="wrong")
+
+        mock_share_repo.increment_download.assert_not_called()
+
+    def test_record_download_not_found(self, mock_share_repo):
+        """分享不存在抛出 NotFoundError"""
+        mock_share_repo.get_by_token.return_value = None
+
+        use_case = RecordShareDownloadUseCase(mock_share_repo)
+
+        with pytest.raises(NotFoundError):
+            use_case.execute("invalid_token")
+
+    def test_record_download_expired(self, mock_share_repo, sample_share_expired):
+        """已过期分享不能下载"""
+        mock_share_repo.get_by_token.return_value = sample_share_expired
+
+        use_case = RecordShareDownloadUseCase(mock_share_repo)
+
+        with pytest.raises(ShareExpiredError):
+            use_case.execute(sample_share_expired.share_token)
+
+        mock_share_repo.increment_download.assert_not_called()