优化系统健康评分与缓存监测

backend/tests/test_permission_monitoring.py

@@ -30,6 +30,24 @@ async def test_cache_metrics():
     assert metrics.miss_rate == pytest.approx(25.0, 0.1)
 
 
+@pytest.mark.asyncio
+async def test_cache_metrics_one_hour_window_and_cache_types():
+    monitor = PermissionMonitor()
+    monitor.record_cache_hit("project_permissions")
+    monitor.record_cache_miss("project_permissions")
+    monitor.record_cache_hit("member_roles")
+
+    stats = monitor.metrics.cache_metrics.window_stats(3600)
+
+    assert stats["total_accesses"] == 3
+    assert stats["hit_rate"] == pytest.approx(66.67, 0.01)
+    assert stats["scope"] == "sliding_window"
+    assert stats["by_cache"]["project_permissions"]["total_accesses"] == 2
+    assert stats["by_cache"]["project_permissions"]["hit_rate"] == 50
+    assert stats["by_cache"]["member_roles"]["total_accesses"] == 1
+    assert stats["by_cache"]["member_roles"]["hit_rate"] == 100
+
+
 @pytest.mark.asyncio
 async def test_cache_invalidation_tracking():
     """测试缓存失效追踪"""