feat: 添加任务历史记录、持久化会话、WebSocket支持和数据持久化功能

tests/test_history.py

@@ -0,0 +1,70 @@
+import pytest
+from datetime import datetime
+from app.models.session import SessionType, TaskStatus, Task
+from app.services.history import HistoryService, history_service
+
+
+class TestHistoryService:
+    @pytest.fixture(autouse=True)
+    def setup(self, mock_settings, monkeypatch):
+        from app.services import storage
+        self.storage = storage.storage
+        self.history = history_service
+        self.history._history = []
+    
+    def test_add_task_history(self):
+        task = Task(
+            id="task-1",
+            type=SessionType.EPHEMERAL,
+            prompt="test prompt",
+            status=TaskStatus.COMPLETED,
+            created_at=datetime.now(),
+            finished_at=datetime.now()
+        )
+        
+        self.history.add_task_history(task)
+        
+        assert len(self.history._history) == 1
+        assert self.history._history[0]["id"] == "task-1"
+    
+    def test_get_history(self):
+        for i in range(5):
+            task = Task(
+                id=f"task-{i}",
+                type=SessionType.EPHEMERAL,
+                prompt=f"prompt {i}",
+                status=TaskStatus.COMPLETED,
+                created_at=datetime.now()
+            )
+            self.history.add_task_history(task)
+        
+        history = self.history.get_history()
+        assert len(history) == 5
+    
+    def test_get_history_with_limit(self):
+        for i in range(10):
+            task = Task(
+                id=f"task-{i}",
+                type=SessionType.EPHEMERAL,
+                prompt=f"prompt {i}",
+                status=TaskStatus.COMPLETED,
+                created_at=datetime.now()
+            )
+            self.history.add_task_history(task)
+        
+        history = self.history.get_history(limit=3)
+        assert len(history) == 3
+    
+    def test_clear_history(self):
+        task = Task(
+            id="task-1",
+            type=SessionType.EPHEMERAL,
+            prompt="test",
+            status=TaskStatus.COMPLETED,
+            created_at=datetime.now()
+        )
+        self.history.add_task_history(task)
+        
+        self.history.clear_history()
+        
+        assert len(self.history._history) == 0