1 files changed, 22 insertions, 1 deletions
diff --git a/tests/test_events.py b/tests/test_events.py
index f36c86a87..8f01a673a 100644
--- a/tests/test_events.py
+++ b/tests/test_events.py
@@ -19,11 +19,16 @@ def test_event_priority():
     assert result == [3, 1, 2, 5, 4]
 
 
+class FakeApp:
+    def __init__(self, pdb: bool = False):
+        self.pdb = pdb
+
+
 def test_event_allowed_exceptions():
     def raise_error(app):
         raise RuntimeError
 
-    events = EventManager(object())  # pass an dummy object as an app
+    events = EventManager(FakeApp())  # pass an dummy object as an app
     events.connect('builder-inited', raise_error, priority=500)
 
     # all errors are converted to ExtensionError
@@ -33,3 +38,19 @@ def test_event_allowed_exceptions():
     # Allow RuntimeError (pass-through)
     with pytest.raises(RuntimeError):
         events.emit('builder-inited', allowed_exceptions=(RuntimeError,))
+
+
+def test_event_pdb():
+    def raise_error(app):
+        raise RuntimeError
+
+    events = EventManager(FakeApp(pdb=True))  # pass an dummy object as an app
+    events.connect('builder-inited', raise_error, priority=500)
+
+    # errors aren't converted
+    with pytest.raises(RuntimeError):
+        events.emit('builder-inited')
+
+    # Allow RuntimeError (pass-through)
+    with pytest.raises(RuntimeError):
+        events.emit('builder-inited', allowed_exceptions=(RuntimeError,))