1 files changed, 10 insertions, 2 deletions
diff --git a/sources/pyside6/tests/pysidetest/all_modules_load_test.py b/sources/pyside6/tests/pysidetest/all_modules_load_test.py
index 16f2369a7..6b3ebe732 100644
--- a/sources/pyside6/tests/pysidetest/all_modules_load_test.py
+++ b/sources/pyside6/tests/pysidetest/all_modules_load_test.py
@@ -13,18 +13,26 @@ init_test_paths(False)
 
 import PySide6
 
+
 # Note:
 # "from PySide6 import *" can only be used at module level.
 # It is also really not recommended to use. But for testing,
 # the "__all__" variable is a great feature!
-
-
 class AllModulesImportTest(unittest.TestCase):
     def testAllModulesCanImport(self):
         # would also work: exec("from PySide6 import *")
         for name in PySide6.__all__:
             exec(f"import PySide6.{name}")
 
+    def testAllReappearsAfterDel(self):
+        # This is the only incompatibility that remains:
+        # After __all__ is deleted, it will re-appear.
+        PySide6.__all__ = 42
+        self.assertEqual(PySide6.__dict__["__all__"], 42)
+        del PySide6.__all__
+        self.assertTrue(PySide6.__dict__["__all__"])
+        self.assertNotEqual(PySide6.__dict__["__all__"], 42)
+
 
 if __name__ == '__main__':
     unittest.main()