refactor: 推进后端分层架构治理

tests/test_search_state_service.py

@@ -0,0 +1,69 @@
+"""搜索状态应用服务测试。"""
+
+import asyncio
+
+from app.application.search.state import SearchStateService
+from app.schemas.types import MediaSource, MediaType
+
+
+def test_search_state_normalizes_identity_and_preserves_cache_contract():
+    """搜索参数保存后应保留媒体身份和前端原有字段。"""
+    saved = []
+    service = SearchStateService(
+        save_cache=lambda value, key: saved.append((key, value)),
+        load_cache=lambda _key: saved[-1][1],
+        async_save_cache=lambda value, key: None,
+        async_load_cache=lambda _key: None,
+        params_key="params",
+        result_key="results",
+        subtitle_result_key="subtitles",
+    )
+
+    service.save_params(
+        keyword="tmdb:123",
+        media_source=None,
+        media_id=None,
+        mtype=MediaType.MOVIE,
+        sites=[1, 2],
+    )
+
+    assert saved == [("params", {
+        "keyword": "",
+        "media_source": str(MediaSource.TMDB),
+        "media_id": "123",
+        "type": MediaType.MOVIE.value,
+        "area": "title",
+        "title": "",
+        "year": "",
+        "season": "",
+        "episode": "",
+        "sites": "1,2",
+        "result_type": "torrent",
+    })]
+    assert service.load_params() == saved[0][1]
+
+
+def test_search_state_async_paths_use_injected_ports():
+    """异步保存和读取必须只使用注入的缓存端口。"""
+    saved = {}
+
+    async def save(value, key):
+        """记录异步缓存写入。"""
+        saved[key] = value
+
+    async def load(key):
+        """返回异步缓存内容。"""
+        return saved.get(key)
+
+    service = SearchStateService(
+        save_cache=lambda *_args: None,
+        load_cache=lambda _key: None,
+        async_save_cache=save,
+        async_load_cache=load,
+        params_key="params",
+        result_key="results",
+        subtitle_result_key="subtitles",
+    )
+
+    asyncio.run(service.async_save_params(keyword="hello"))
+    assert asyncio.run(service.async_load_params())["keyword"] == "hello"