fix(runtime): make plugin and box connectors resilient

tests/unit_tests/core/test_boot.py

@@ -2,6 +2,7 @@ from __future__ import annotations
 
 import signal
 from types import SimpleNamespace
+from unittest.mock import Mock
 
 import pytest
 
@@ -18,47 +19,60 @@ async def test_main_signal_handler_handles_sigint_before_app_created(monkeypatch
     async def fake_make_app(loop):
         captured_handler[signal.SIGINT](signal.SIGINT, None)
 
-    def fake_exit(code):
-        raise SystemExit(code)
-
     monkeypatch.setattr(signal, 'signal', fake_signal)
     monkeypatch.setattr(boot, 'make_app', fake_make_app)
-    monkeypatch.setattr(boot.os, '_exit', fake_exit)
 
-    with pytest.raises(SystemExit) as exc_info:
-        await boot.main(SimpleNamespace())
-
-    assert exc_info.value.code == 0
+    await boot.main(SimpleNamespace())
 
 
 @pytest.mark.asyncio
 async def test_main_signal_handler_disposes_created_app(monkeypatch):
     captured_handler = {}
-    app_inst = SimpleNamespace(disposed=False)
+    app_inst = SimpleNamespace(shutdown_called=False)
 
     def fake_signal(sig, handler):
         captured_handler[sig] = handler
 
-    def dispose():
-        app_inst.disposed = True
+    async def shutdown():
+        app_inst.shutdown_called = True
 
     async def run():
         captured_handler[signal.SIGINT](signal.SIGINT, None)
 
     async def fake_make_app(loop):
-        app_inst.dispose = dispose
+        app_inst.shutdown = shutdown
         app_inst.run = run
         return app_inst
 
-    def fake_exit(code):
-        raise SystemExit(code)
-
     monkeypatch.setattr(signal, 'signal', fake_signal)
     monkeypatch.setattr(boot, 'make_app', fake_make_app)
-    monkeypatch.setattr(boot.os, '_exit', fake_exit)
 
-    with pytest.raises(SystemExit) as exc_info:
-        await boot.main(SimpleNamespace())
+    await boot.main(SimpleNamespace())
 
-    assert exc_info.value.code == 0
-    assert app_inst.disposed is True
+    assert app_inst.shutdown_called is True
+
+
+@pytest.mark.asyncio
+async def test_main_reports_app_run_failure_and_still_shuts_down(monkeypatch):
+    app_inst = SimpleNamespace(shutdown_called=False)
+
+    async def shutdown():
+        app_inst.shutdown_called = True
+
+    async def run():
+        raise RuntimeError('run failed')
+
+    async def fake_make_app(loop):
+        app_inst.shutdown = shutdown
+        app_inst.run = run
+        return app_inst
+
+    print_exc = Mock()
+    monkeypatch.setattr(signal, 'signal', lambda *_args: None)
+    monkeypatch.setattr(boot, 'make_app', fake_make_app)
+    monkeypatch.setattr(boot.traceback, 'print_exc', print_exc)
+
+    await boot.main(SimpleNamespace())
+
+    print_exc.assert_called_once()
+    assert app_inst.shutdown_called is True