refactor: 推进后端分层架构治理

tests/test_runtime_manager_identity.py

@@ -0,0 +1,41 @@
+from app.foundation.singleton import Singleton
+from app.runtime.events import EventManager, eventmanager
+from app.runtime.extensions.module_manager import ModuleManager
+from app.runtime.extensions.plugin_manager import PluginManager
+from app.sdk.plugins import ModuleManager as SdkModuleManager
+from app.sdk.plugins import PluginManager as SdkPluginManager
+
+
+def _singleton_key(manager_type: type) -> tuple:
+    """返回无参数 Singleton 管理器使用的缓存键。"""
+    return manager_type, (), frozenset()
+
+
+def test_event_manager_global_and_constructor_share_identity():
+    """事件全局对象与公开构造入口必须指向同一单例。"""
+    assert EventManager() is eventmanager
+    assert EventManager() is EventManager()
+
+
+def test_module_manager_sdk_and_runtime_share_identity(monkeypatch):
+    """模块管理器 SDK 与运行时入口必须解析到同一单例对象。"""
+    instance = object.__new__(ModuleManager)
+    instances = dict(Singleton._instances)
+    instances[_singleton_key(ModuleManager)] = instance
+    monkeypatch.setattr(Singleton, "_instances", instances)
+
+    assert SdkModuleManager is ModuleManager
+    assert SdkModuleManager() is instance
+    assert ModuleManager() is instance
+
+
+def test_plugin_manager_sdk_and_runtime_share_identity(monkeypatch):
+    """插件管理器 SDK 与运行时入口必须解析到同一单例对象。"""
+    instance = object.__new__(PluginManager)
+    instances = dict(Singleton._instances)
+    instances[_singleton_key(PluginManager)] = instance
+    monkeypatch.setattr(Singleton, "_instances", instances)
+
+    assert SdkPluginManager is PluginManager
+    assert SdkPluginManager() is instance
+    assert PluginManager() is instance