xiaoxia-saas/tests/unit/test_viral_video_p0.py

"""#2106 P0 修复单测：Seedance 对接、image_analysis 持久化、TTS Path 统一、BGM/MuseTalk 跳过。"""

from __future__ import annotations

import sys
from pathlib import Path as _Path

# worker 容器 PYTHONPATH 包含 apps/worker（worker 侧代码使用顶层包名 services/、viral_video/）
_WORKER_ROOT = _Path(__file__).resolve().parents[2] / "apps" / "worker"
if str(_WORKER_ROOT) not in sys.path:
    sys.path.insert(0, str(_WORKER_ROOT))


from pathlib import Path
from unittest.mock import MagicMock, patch

import pytest

from packages.domain.viral_video import ViralVideoJob, ViralVideoStatus


@pytest.fixture
def mock_job():
    return ViralVideoJob(
        user_id="user-001",
        images=["https://img.com/1.jpg"],
        industry="美妆",
        duration=15,
        user_copy_text="测试文案",
        fusion_level="ai_polish",
    )


# ── P0-2: _step_video_analysis import 路径 ──────────────────────────


class TestVideoAnalysisImport:
    def test_no_reference_returns_none(self, mock_job):
        from apps.worker.worker_app.tasks.viral_video import _step_video_analysis

        mock_job.reference_video_url = ""
        assert _step_video_analysis(mock_job) is None

    def test_with_reference_returns_dict_or_none(self, mock_job):
        """有参考视频 URL 时，不管分析成功/失败/占位，返回 dict（不抛异常）。"""
        from apps.worker.worker_app.tasks.viral_video import _step_video_analysis

        mock_job.reference_video_url = "https://example.com/ref.mp4"
        result = _step_video_analysis(mock_job)
        # 允许占位/失败/真实返回，但绝不能抛异常
        assert result is None or isinstance(result, dict)


# ── P0-3: image_analysis 字段 ─────────────────────────────────────


class TestImageAnalysisField:
    def test_default_none(self):
        job = ViralVideoJob(user_id="u1")
        assert job.image_analysis is None

    def test_persist_and_read(self, mock_job):
        mock_job.image_analysis = {"products": [{"name": "口红"}]}
        assert mock_job.image_analysis["products"][0]["name"] == "口红"


# ── P0-1: storyboard 规范化 ────────────────────────────────────────


class TestScriptGenerationV16:
    """v1.6 编导分镜脚本生成相关纯函数测试。"""

    def test_fallback_script_has_required_fields(self, mock_job):
        from apps.worker.worker_app.tasks.viral_video import _fallback_script

        out = _fallback_script(mock_job)
        assert isinstance(out, dict)
        assert "overview" in out
        assert "shots" in out
        assert "voiceover_script" in out
        assert "hard_constraints" in out
        assert "negative_prompts" in out
        assert out["overview"]["total_duration"] == mock_job.duration
        assert out["final_copy"] == out["voiceover_script"]
        assert len(out["shots"]) >= 1

    def test_safe_json_loads_parses_fenced_code(self):
        from apps.worker.worker_app.tasks.viral_video import _safe_json_loads

        fenced = '```json\n{"voiceover_script": "你好", "shots": []}\n```'
        out = _safe_json_loads(fenced)
        assert out is not None
        assert out["voiceover_script"] == "你好"

    def test_safe_json_loads_handles_none(self):
        from apps.worker.worker_app.tasks.viral_video import _safe_json_loads

        assert _safe_json_loads(None) is None
        assert _safe_json_loads("not json") is None

    def test_validate_normalize_fills_defaults(self, mock_job):
        from apps.worker.worker_app.tasks.viral_video import _validate_and_normalize_script

        raw = {"voiceover_script": "你好", "shots": [{"scene_and_dialogue": "测试"}]}
        out = _validate_and_normalize_script(raw, mock_job)
        assert out["voiceover_script"] == "你好"
        assert len(out["shots"]) == 1
        assert out["shots"][0]["shot_type_angle_movement"]
        assert out["overview"]["total_duration"] == mock_job.duration

    def test_assemble_seedance_prompt_contains_sections(self, mock_job):
        from apps.worker.worker_app.tasks.viral_video import _assemble_seedance_prompt

        cr = {
            "overview": {"theme": "测试", "total_duration": 15, "aspect_ratio": "9:16"},
            "scene_and_lighting": "明亮",
            "shots": [
                {
                    "time_range": "0-15秒",
                    "shot_type_angle_movement": "中景",
                    "scene_and_dialogue": "你好",
                    "action_details": "展示",
                    "audio_bgm": "BGM",
                    "transition": "结束",
                    "reference_image_index": 0,
                }
            ],
            "hard_constraints": ["无字幕"],
            "negative_prompts": ["水印"],
        }
        p = _assemble_seedance_prompt(cr, mock_job)
        for key in ("【视频总览】", "【场景与光线】", "【逐镜头时间轴】", "【硬性约束】", "【负面提示词】"):
            assert key in p


# ── P1: TTS 返回 Path|None ────────────────────────────────────────


class TestTTSPath:
    def test_tts_returns_none_on_import_error(self, mock_job):
        """get_tts_service 抛 ImportError 时 _step_tts 返回 None。"""
        from apps.worker.worker_app.tasks import viral_video as vv

        with patch("apps.worker.services.tts_service_factory.get_tts_service", side_effect=ImportError("no tts")):
            assert vv._step_tts(mock_job, "文案") is None

    def test_tts_returns_none_when_path_not_exists(self, mock_job, tmp_path):
        from apps.worker.worker_app.tasks import viral_video as vv

        fake_service = MagicMock()
        fake_service.synthesize.return_value = str(tmp_path / "not_exist.mp3")
        with patch("apps.worker.services.tts_service_factory.get_tts_service", return_value=fake_service):
            assert vv._step_tts(mock_job, "文案") is None

    def test_tts_returns_path_when_exists(self, mock_job, tmp_path):
        from apps.worker.worker_app.tasks import viral_video as vv

        audio = tmp_path / "voice.mp3"
        audio.write_bytes(b"ID3fake")
        fake_service = MagicMock()
        fake_service.synthesize.return_value = audio
        with patch("apps.worker.services.tts_service_factory.get_tts_service", return_value=fake_service):
            result = vv._step_tts(mock_job, "文案")
            # Bug #2110: 校验传入了 voice_id+format=mp3
            call_kwargs = fake_service.synthesize.call_args.kwargs
            assert call_kwargs.get("format") == "mp3"
            assert isinstance(result, Path)
            assert result.exists()


# ── P1: BGM 跳过 / MuseTalk 无 persona 跳过 ───────────────────────


class TestDurationClamp:
    """v1.6 mark_copy_generated 派生字段 + duration clamp。"""

    def test_mark_copy_generated_derives_fields(self):
        job = ViralVideoJob(user_id="u1", duration=15)
        cr = {
            "overview": {"theme": "x", "total_duration": 15, "aspect_ratio": "9:16"},
            "scene_and_lighting": "亮",
            "shots": [{"time_range": "0-15秒", "scene_and_dialogue": "对白"}],
            "voiceover_script": "你好",
            "hard_constraints": [],
            "negative_prompts": [],
        }
        job.mark_copy_generated(cr)
        assert job.copy_result is cr
        assert job.generated_copy_text == "你好"
        assert job.storyboard == cr["shots"]
        assert job.effective_copy_text == "你好"


# ── P0-1: call_video_generation 参数构造 ──────────────────────────


class TestCallVideoGeneration:
    def test_returns_none_when_client_unavailable(self):
        from packages.shared.ai_service import call_video_generation

        with patch("packages.shared.ai_service.get_doubao_client") as mock_get:
            mock_client = MagicMock()
            mock_client.is_available = False
            mock_get.return_value = mock_client
            assert call_video_generation("prompt") is None

    def test_delegates_to_client(self, tmp_path):
        from packages.shared.ai_service import call_video_generation

        out = tmp_path / "v.mp4"
        out.write_bytes(b"fake")
        with patch("packages.shared.ai_service.get_doubao_client") as mock_get:
            mock_client = MagicMock()
            mock_client.is_available = True
            mock_client.video_generation.return_value = str(out)
            mock_get.return_value = mock_client
            result = call_video_generation(prompt="测试", image_url="https://img/x.jpg", duration=5, ratio="9:16")
            assert result == str(out)
            mock_client.video_generation.assert_called_once()
            kwargs = mock_client.video_generation.call_args.kwargs
            assert kwargs["prompt"] == "测试"
            assert kwargs["image_url"] == "https://img/x.jpg"
            assert kwargs["duration"] == 5
            assert kwargs["generate_audio"] is True


# ── P0-1: _step_render 占位片段生成 ──────────────────────────────


class TestCallVideoGenerationV16:
    """v1.6 call_video_generation 透传 reference_audios/reference_images 等参数到 client。"""

    def test_passes_reference_params_to_client(self, tmp_path):
        from packages.shared.ai_service import call_video_generation

        out = tmp_path / "v.mp4"
        out.write_bytes(b"fake")
        with patch("packages.shared.ai_service.get_doubao_client") as mock_get:
            mock_client = MagicMock()
            mock_client.is_available = True
            mock_client.video_generation.return_value = str(out)
            mock_get.return_value = mock_client
            result = call_video_generation(
                prompt="测试",
                image_url="https://img/x.jpg",
                duration=15,
                ratio="9:16",
                reference_images=["https://img/r1.jpg"],
                reference_audios=["https://oss/tts.mp3"],
                reference_videos=["https://oss/ref.mp4"],
                generate_audio=True,
                model="doubao-seedance-2-5-260628",
            )
            assert result == str(out)
            kwargs = mock_client.video_generation.call_args.kwargs
            # 首帧模式不传 ratio（Bug #2110）
            assert "ratio" not in kwargs
            assert kwargs["image_url"] == "https://img/x.jpg"
            assert kwargs["reference_audios"] == ["https://oss/tts.mp3"]
            assert kwargs["reference_images"] == ["https://img/r1.jpg"]
            assert kwargs["reference_videos"] == ["https://oss/ref.mp4"]
            assert kwargs["generate_audio"] is True
            assert kwargs["model"] == "doubao-seedance-2-5-260628"

    def test_ratio_passed_when_no_image(self, tmp_path):
        from packages.shared.ai_service import call_video_generation

        out = tmp_path / "v.mp4"
        out.write_bytes(b"fake")
        with patch("packages.shared.ai_service.get_doubao_client") as mock_get:
            mock_client = MagicMock()
            mock_client.is_available = True
            mock_client.video_generation.return_value = str(out)
            mock_get.return_value = mock_client
            call_video_generation(prompt="测试", duration=10, ratio="16:9")
            kwargs = mock_client.video_generation.call_args.kwargs
            assert kwargs["ratio"] == "16:9"
            assert kwargs["image_url"] is None


# ── P0-1: DoubaoClient.video_generation 在不可用时返回 None ───────


class TestDoubaoClientVideoGen:
    def test_unavailable_returns_none(self):
        from packages.shared.ai_client import DoubaoClient

        client = DoubaoClient.__new__(DoubaoClient)
        client.api_key = ""  # is_available -> False
        assert client.video_generation("prompt") is None


# ── P0-3: resume 从 job 读 image_analysis ────────────────────────


class TestResumeReadsImageAnalysis:
    def test_resume_uses_persisted_image_analysis(self):
        """resume/render pipeline 应从 job.image_analysis 读（v1.5 _run_render_pipeline 共享渲染逻辑）。"""
        import inspect

        from apps.worker.worker_app.tasks import viral_video as vv

        # v1.5 改造后 resume 委托给 _run_render_pipeline，那里读取 job.image_analysis
        src = inspect.getsource(vv._run_render_pipeline)
        assert "job.image_analysis" in src
        assert "image_analysis" in src
        # resume 本身应该调用 _run_render_pipeline
        resume_src = inspect.getsource(vv.resume_viral_video_pipeline)
        assert "_run_render_pipeline" in resume_src