Merge pull request pallets#4293 from pallets/flaky-lazy-test

davidism · web-flow · commit 5a1c5eb5c040 · 2021-10-05T08:06:49.000-07:00
try to address flakiness of lazy loading test
diff --git a/tests/test_cli.py b/tests/test_cli.py
@@ -334,7 +334,9 @@ def bad_load():
     lazy = DispatchingApp(bad_load, use_eager_loading=False)
 
     with pytest.raises(BadExc):
-        lazy._flush_bg_loading_exception()
+        # reduce flakiness by waiting for the internal loading lock
+        with lazy._lock:
+            lazy._flush_bg_loading_exception()
 
 
 def test_with_appcontext(runner):
