1 files changed, 63 insertions, 0 deletions
diff --git a/sources/pyside6/tests/QtGui/pyside_reload_test.py b/sources/pyside6/tests/QtGui/pyside_reload_test.py
new file mode 100644
index 000000000..1ac65f709
--- /dev/null
+++ b/sources/pyside6/tests/QtGui/pyside_reload_test.py
@@ -0,0 +1,63 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+import importlib
+import importlib.util
+import os
+import shutil
+import sys
+import unittest
+
+from pathlib import Path
+sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
+from init_paths import init_test_paths
+init_test_paths(False)
+
+
+orig_path = os.path.join(os.path.dirname(__file__))
+workdir = os.getcwd()
+src = os.path.normpath(os.path.join(orig_path, '..', 'QtWidgets', 'test_module_template.py'))
+dst = os.path.join(workdir, 'test_module.py')
+shutil.copyfile(src, dst)
+sys.path.append(workdir)
+
+
+def reload_module(moduleName):
+    importlib.reload(moduleName)
+
+
+def increment_module_value():
+    modfile = open(dst, 'a')
+    modfile.write('Sentinel.value += 1' + os.linesep)
+    modfile.flush()
+    modfile.close()
+    if not sys.dont_write_bytecode:
+        import importlib.util
+        cacheFile = importlib.util.cache_from_source(dst)
+        os.remove(cacheFile)
+
+
+class TestModuleReloading(unittest.TestCase):
+
+    def testModuleReloading(self):
+        '''Test module reloading with on-the-fly modifications.'''
+
+        import test_module
+        self.assertEqual(test_module.Sentinel.value, 10)
+
+        increment_module_value()
+        reload_module(sys.modules['test_module'])
+        self.assertEqual(test_module.Sentinel.value, 11)
+
+        reload_module(sys.modules['test_module'])
+        self.assertEqual(test_module.Sentinel.value, 11)
+
+        increment_module_value()
+        reload_module(sys.modules['test_module'])
+        self.assertEqual(test_module.Sentinel.value, 12)
+
+
+if __name__ == "__main__":
+    unittest.main()
+
+