1 files changed, 59 insertions, 0 deletions
diff --git a/sources/pyside6/tests/QtWidgets/signature_test.py b/sources/pyside6/tests/QtWidgets/signature_test.py
new file mode 100644
index 000000000..f156b6717
--- /dev/null
+++ b/sources/pyside6/tests/QtWidgets/signature_test.py
@@ -0,0 +1,59 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+import inspect
+import os
+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)
+
+import PySide6.QtCore
+import PySide6.QtWidgets
+from PySide6.support.signature import get_signature
+
+
+class PySideSignatureTest(unittest.TestCase):
+    def testSignatureExist(self):
+        t1 = type(get_signature(PySide6.QtCore.QObject.children))
+        self.assertEqual(t1, inspect.Signature)
+        t2 = type(get_signature(PySide6.QtCore.QObject.__dict__["children"]))
+        self.assertEqual(t2, t1)
+        obj = PySide6.QtWidgets.QApplication.palette
+        t3 = type(get_signature(obj))
+        self.assertEqual(t3, list)
+        self.assertEqual(len(get_signature(obj)), 3)
+        for thing in get_signature(obj):
+            self.assertEqual(type(thing), inspect.Signature)
+        sm = PySide6.QtWidgets.QApplication.__dict__["palette"]
+        # PYSIDE-1436: staticmethod is a callable since Python 3.10
+        # Instead of checking callable(sm), we check the type:
+        self.assertEqual(type(sm), staticmethod)
+        self.assertTrue(get_signature(sm) is not None)
+
+    def testSignatureIsCached(self):
+        # see if we get the same object
+        ob1 = get_signature(PySide6.QtCore.QObject.children)
+        ob2 = get_signature(PySide6.QtCore.QObject.children)
+        self.assertTrue(ob1 is ob2)
+        # same with multi signature
+        ob1 = get_signature(PySide6.QtWidgets.QApplication.palette)
+        ob2 = get_signature(PySide6.QtWidgets.QApplication.palette)
+        self.assertTrue(ob1 is ob2)
+
+    def testModuleIsInitialized(self):
+        self.assertTrue(get_signature(PySide6.QtWidgets.QApplication) is not None)
+
+    def test_NotCalled_is_callable_and_correct(self):
+        # A signature that has a default value with some "Default(...)"
+        # wrapper is callable and creates an object of the right type.
+        sig = get_signature(PySide6.QtCore.QByteArray().toPercentEncoding)
+        called_default = sig.parameters["exclude"].default()
+        self.assertEqual(type(called_default), PySide6.QtCore.QByteArray)
+
+
+if __name__ == "__main__":
+    unittest.main()