test(wave157): domain层7个小模块批量单测 +44

为 domain 层 7 个小模块新增 44 个单测，纯逻辑 0 外部依赖：

- EditingMode 枚举：6个
- Tag 工厂：4个
- RecipeItem/Recipe：6个
- VoiceLibraryItem：3个
- TitleLibraryItem：3个
- TemplateSegment/Template/TemplateCategory：6个
- EditTemplateStatus/EditTemplate：16个

tests/unit/domain/test_domain_small_modules.py

@@ -0,0 +1,421 @@
+"""domain层小模块批量单测.
+
+覆盖：recipe / tag / editing_mode / voice_library / title_library / template / edit_template
+共 7 个模块，纯逻辑 0 外部依赖。
+"""
+
+from __future__ import annotations
+
+from packages.domain.editing_mode import EditingMode
+from packages.domain.edit_template import EditTemplate, EditTemplateStatus
+from packages.domain.recipe import Recipe, RecipeItem
+from packages.domain.tag import Tag
+from packages.domain.template import Template, TemplateCategory, TemplateSegment
+from packages.domain.title_library import TitleLibraryItem
+from packages.domain.voice_library import VoiceLibraryItem
+
+
+class TestEditingMode:
+    """EditingMode 枚举测试."""
+
+    def test_four_modes(self):
+        """四种剪辑模式."""
+        assert len(EditingMode) == 4
+
+    def test_one_take(self):
+        assert EditingMode.ONE_TAKE == "one_take"
+
+    def test_pip(self):
+        assert EditingMode.PIP == "pip"
+
+    def test_voice_over(self):
+        assert EditingMode.VOICE_OVER == "voice_over"
+
+    def test_voice_pip(self):
+        assert EditingMode.VOICE_PIP == "voice_pip"
+
+    def test_all_values_unique(self):
+        values = [m.value for m in EditingMode]
+        assert len(values) == len(set(values))
+
+
+class TestTag:
+    """Tag 测试."""
+
+    def test_create_valid(self):
+        """正常创建."""
+        tag = Tag.create(user_id="u1", name="  搞笑  ")
+        assert tag.user_id == "u1"
+        assert tag.name == "搞笑"
+        assert isinstance(tag.id, str)
+        assert len(tag.id) > 0
+        assert tag.created_at is not None
+
+    def test_create_empty_name(self):
+        """空名称无效."""
+        try:
+            Tag.create("u1", "")
+            assert False
+        except ValueError as e:
+            assert "不能为空" in str(e)
+
+    def test_create_whitespace_name(self):
+        """纯空白名称无效."""
+        try:
+            Tag.create("u1", "   ")
+            assert False
+        except ValueError as e:
+            assert "不能为空" in str(e)
+
+    def test_create_unique_id(self):
+        t1 = Tag.create("u", "t1")
+        t2 = Tag.create("u", "t2")
+        assert t1.id != t2.id
+
+
+class TestRecipeItem:
+    """RecipeItem 测试."""
+
+    def test_create_asset_item(self):
+        """素材配方项."""
+        item = RecipeItem(
+            id="item1",
+            recipe_id="r1",
+            item_type="asset",
+            item_id="a1",
+            position=0,
+        )
+        assert item.item_type == "asset"
+        assert item.item_id == "a1"
+        assert item.position == 0
+
+    def test_create_title_item(self):
+        """标题配方项."""
+        item = RecipeItem(id="i2", recipe_id="r1", item_type="title", item_id="t1", position=1)
+        assert item.item_type == "title"
+        assert item.position == 1
+
+    def test_default_metadata(self):
+        """默认 metadata 为空 dict."""
+        item = RecipeItem(id="i1", recipe_id="r1", item_type="voice", item_id="v1")
+        assert item.metadata_ == {}
+
+
+class TestRecipe:
+    """Recipe 测试."""
+
+    def test_create_minimal(self):
+        """最简配方."""
+        recipe = Recipe(id="r1", user_id="u1", name="我的配方")
+        assert recipe.name == "我的配方"
+        assert recipe.description == ""
+        assert recipe.template_id == ""
+        assert recipe.generation_params == {}
+        assert recipe.items == []
+        assert recipe.is_active is True
+        assert recipe.created_at is not None
+        assert recipe.updated_at is not None
+
+    def test_create_with_items(self):
+        """带配方项."""
+        items = [
+            RecipeItem(id="i1", recipe_id="r1", item_type="asset", item_id="a1", position=0),
+            RecipeItem(id="i2", recipe_id="r1", item_type="title", item_id="t1", position=1),
+        ]
+        recipe = Recipe(id="r1", user_id="u1", name="配方", items=items)
+        assert len(recipe.items) == 2
+        assert recipe.items[0].item_type == "asset"
+        assert recipe.items[1].position == 1
+
+    def test_default_items_empty_list(self):
+        """默认 items 为空列表."""
+        r1 = Recipe(id="r1", user_id="u1", name="r1")
+        r2 = Recipe(id="r2", user_id="u2", name="r2")
+        r1.items.append("fake")
+        assert r2.items == []
+
+
+class TestVoiceLibraryItem:
+    """VoiceLibraryItem 测试."""
+
+    def test_create_minimal(self):
+        """最简创建."""
+        item = VoiceLibraryItem(id="v1", user_id="u1", name="我的配音")
+        assert item.name == "我的配音"
+        assert item.text == ""
+        assert item.voice_provider == ""
+        assert item.voice_id == ""
+        assert item.voice_name == ""
+        assert item.audio_url == ""
+        assert item.duration == 0
+        assert item.file_size == 0
+        assert item.status == "completed"
+        assert item.project_id is None
+        assert item.tags == []
+        assert item.metadata_ == {}
+
+    def test_create_full(self):
+        """带全部字段."""
+        item = VoiceLibraryItem(
+            id="v1",
+            user_id="u1",
+            name="旁白",
+            text="大家好",
+            voice_provider="xf",
+            voice_id="v1",
+            voice_name="小云",
+            audio_url="http://x/a.mp3",
+            duration=10.5,
+            file_size=102400,
+            status="processing",
+            project_id="p1",
+            tags=["旁白", "正式"],
+        )
+        assert item.text == "大家好"
+        assert item.duration == 10.5
+        assert item.file_size == 102400
+        assert item.project_id == "p1"
+        assert item.tags == ["旁白", "正式"]
+
+    def test_tags_independent(self):
+        """不同实例的 tags 独立."""
+        i1 = VoiceLibraryItem(id="v1", user_id="u", name="n1")
+        i2 = VoiceLibraryItem(id="v2", user_id="u", name="n2")
+        i1.tags.append("x")
+        assert i2.tags == []
+
+
+class TestTitleLibraryItem:
+    """TitleLibraryItem 测试."""
+
+    def test_create_required(self):
+        """必填字段."""
+        item = TitleLibraryItem(id="t1", user_id="u1", name="爆款标题", text="这也太牛了")
+        assert item.name == "爆款标题"
+        assert item.text == "这也太牛了"
+        assert item.category == "default"
+        assert item.description == ""
+        assert item.tags == []
+        assert item.usage_count == 0
+        assert item.is_active is True
+        assert item.metadata_ == {}
+
+    def test_create_full(self):
+        """带全部字段."""
+        item = TitleLibraryItem(
+            id="t1",
+            user_id="u1",
+            name="科技标题",
+            text="震惊！",
+            category="tech",
+            description="科技类标题",
+            tags=["科技", "爆款"],
+            usage_count=100,
+            is_active=False,
+        )
+        assert item.category == "tech"
+        assert item.usage_count == 100
+        assert item.is_active is False
+        assert item.tags == ["科技", "爆款"]
+
+    def test_tags_independent(self):
+        i1 = TitleLibraryItem(id="t1", user_id="u", name="n", text="t")
+        i2 = TitleLibraryItem(id="t2", user_id="u", name="n", text="t")
+        i1.tags.append("x")
+        assert i2.tags == []
+
+
+class TestTemplateSegment:
+    """TemplateSegment 测试."""
+
+    def test_create(self):
+        """正常创建."""
+        seg = TemplateSegment(
+            id="s1",
+            template_id="t1",
+            segment_order=0,
+            duration_min=2.0,
+            duration_max=5.0,
+        )
+        assert seg.segment_order == 0
+        assert seg.duration_min == 2.0
+        assert seg.duration_max == 5.0
+        assert seg.material_type is None
+
+    def test_with_material_type(self):
+        """带素材类型（voice_over模式）."""
+        seg = TemplateSegment(
+            id="s1",
+            template_id="t1",
+            segment_order=0,
+            duration_min=3.0,
+            duration_max=8.0,
+            material_type="person",
+        )
+        assert seg.material_type == "person"
+
+    def test_has_timestamps(self):
+        seg = TemplateSegment(id="s1", template_id="t1", segment_order=0, duration_min=1, duration_max=2)
+        assert seg.created_at is not None
+        assert seg.updated_at is not None
+
+
+class TestTemplate:
+    """Template 测试."""
+
+    def test_create_minimal(self):
+        """最简模板."""
+        tpl = Template(id="t1", user_id="u1", name="通用模板", mode="one_take")
+        assert tpl.name == "通用模板"
+        assert tpl.mode == "one_take"
+        assert tpl.category == ""
+        assert tpl.tags == []
+        assert tpl.title_config == {}
+        assert tpl.subtitle_config == {}
+        assert tpl.bgm_config == {}
+        assert tpl.estimated_duration == 0.0
+        assert tpl.segments == []
+        assert tpl.is_active is True
+
+    def test_create_with_segments(self):
+        """带片段."""
+        segs = [
+            TemplateSegment(id="s1", template_id="t1", segment_order=0, duration_min=2, duration_max=5),
+            TemplateSegment(id="s2", template_id="t1", segment_order=1, duration_min=3, duration_max=7),
+        ]
+        tpl = Template(id="t1", user_id="u1", name="模板", mode="pip", segments=segs)
+        assert len(tpl.segments) == 2
+        assert tpl.segments[0].segment_order == 0
+
+    def test_segments_independent(self):
+        t1 = Template(id="t1", user_id="u", name="n1", mode="one_take")
+        t2 = Template(id="t2", user_id="u", name="n2", mode="pip")
+        t1.segments.append("fake")
+        assert t2.segments == []
+
+
+class TestTemplateCategory:
+    """TemplateCategory 测试."""
+
+    def test_create(self):
+        cat = TemplateCategory(id="c1", user_id="u1", name="科技")
+        assert cat.name == "科技"
+        assert cat.created_at is not None
+
+
+class TestEditTemplateStatus:
+    """EditTemplateStatus 枚举测试."""
+
+    def test_two_statuses(self):
+        assert len(EditTemplateStatus) == 2
+
+    def test_active(self):
+        assert EditTemplateStatus.ACTIVE == "active"
+
+    def test_inactive(self):
+        assert EditTemplateStatus.INACTIVE == "inactive"
+
+
+class TestEditTemplate:
+    """EditTemplate 测试."""
+
+    def test_create_minimal(self):
+        """最简创建."""
+        tpl = EditTemplate.create(name="  通用模板  ")
+        assert tpl.name == "通用模板"
+        assert tpl.description == ""
+        assert tpl.template_type == "default"
+        assert tpl.config == {}
+        assert tpl.preview_url == ""
+        assert tpl.sort_weight == 0
+        assert tpl.status == EditTemplateStatus.ACTIVE
+        assert isinstance(tpl.id, str)
+        assert len(tpl.id) > 0
+
+    def test_create_full(self):
+        """带全部字段."""
+        tpl = EditTemplate.create(
+            name="口播模板",
+            description="口播类模板",
+            template_type="voice_over",
+            config={"style": "formal"},
+            preview_url="https://x/preview.mp4",
+            sort_weight=100,
+            status=EditTemplateStatus.INACTIVE,
+        )
+        assert tpl.name == "口播模板"
+        assert tpl.description == "口播类模板"
+        assert tpl.template_type == "voice_over"
+        assert tpl.config == {"style": "formal"}
+        assert tpl.preview_url == "https://x/preview.mp4"
+        assert tpl.sort_weight == 100
+        assert tpl.status == EditTemplateStatus.INACTIVE
+
+    def test_create_empty_name(self):
+        """空名称无效."""
+        try:
+            EditTemplate.create(name="")
+            assert False
+        except ValueError as e:
+            assert "不能为空" in str(e)
+
+    def test_create_whitespace_name(self):
+        """空白名称无效."""
+        try:
+            EditTemplate.create(name="   ")
+            assert False
+        except ValueError as e:
+            assert "不能为空" in str(e)
+
+    def test_empty_template_type_defaults(self):
+        """空 template_type 默认 default."""
+        tpl = EditTemplate.create(name="t", template_type="")
+        assert tpl.template_type == "default"
+
+    def test_whitespace_template_type_defaults(self):
+        """空白 template_type 默认 default."""
+        tpl = EditTemplate.create(name="t", template_type="   ")
+        assert tpl.template_type == "default"
+
+    def test_config_none_defaults_empty(self):
+        """config=None 默认为空 dict."""
+        tpl = EditTemplate.create(name="t", config=None)
+        assert tpl.config == {}
+
+    def test_activate(self):
+        """激活."""
+        tpl = EditTemplate.create(name="t", status=EditTemplateStatus.INACTIVE)
+        old = tpl.updated_at
+        tpl.activate()
+        assert tpl.is_active is True
+        assert tpl.status == EditTemplateStatus.ACTIVE
+        assert tpl.updated_at >= old
+
+    def test_deactivate(self):
+        """停用."""
+        tpl = EditTemplate.create(name="t")
+        old = tpl.updated_at
+        tpl.deactivate()
+        assert tpl.is_active is False
+        assert tpl.status == EditTemplateStatus.INACTIVE
+        assert tpl.updated_at >= old
+
+    def test_is_active_property(self):
+        """is_active 属性."""
+        tpl = EditTemplate.create(name="t")
+        assert tpl.is_active is True
+        tpl.deactivate()
+        assert tpl.is_active is False
+        tpl.activate()
+        assert tpl.is_active is True
+
+    def test_unique_id(self):
+        t1 = EditTemplate.create(name="t1")
+        t2 = EditTemplate.create(name="t2")
+        assert t1.id != t2.id
+
+    def test_config_independent(self):
+        t1 = EditTemplate.create(name="t1")
+        t2 = EditTemplate.create(name="t2")
+        t1.config["k"] = "v"
+        assert "k" not in t2.config