1 files changed, 139 insertions, 0 deletions
diff --git a/sources/pyside6/tests/QtWidgets/qlayout_test.py b/sources/pyside6/tests/QtWidgets/qlayout_test.py
new file mode 100644
index 000000000..cc41f78b1
--- /dev/null
+++ b/sources/pyside6/tests/QtWidgets/qlayout_test.py
@@ -0,0 +1,139 @@
+# 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 gc
+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)
+
+from helper.usesqapplication import UsesQApplication
+from PySide6.QtCore import QTimer
+from PySide6.QtWidgets import (QFormLayout, QHBoxLayout, QLayout, QPushButton,
+                               QSpacerItem, QWidget, QWidgetItem)
+
+
+class MyLayout(QLayout):
+    def __init__(self, parent=None):
+        QLayout.__init__(self, parent)
+        self._list = []
+
+    def addItem(self, item):
+        self.add(item)
+
+    def addWidget(self, widget):
+        self.add(QWidgetItem(widget))
+
+    def itemAt(self, index):
+        if index < len(self._list):
+            return self._list[index]
+
+        return None
+
+    def count(self):
+        return len(self._list)
+
+    def add(self, item):
+        self._list.append(item)
+
+
+class MissingItemAtLayout(QLayout):
+    def __init__(self, parent=None):
+        QLayout.__init__(self, parent)
+        self._list = []
+
+    def addItem(self, item):
+        self.add(item)
+
+    def addWidget(self, widget):
+        self.add(QWidgetItem(widget))
+
+    def count(self):
+        return len(self._list)
+
+    def add(self, item):
+        self._list.append(item)
+
+# Test if a layout implemented in python, the QWidget.setLayout works
+# fine because this implement som layout functions used in glue code of
+# QWidget, then in c++ when call a virtual function this need call the QLayout
+# function implemented in python
+
+
+class QLayoutTest(UsesQApplication):
+    @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
+    def testOwnershipTransfer(self):
+        b = QPushButton("teste")
+        l = MyLayout()
+
+        l.addWidget(b)
+
+        self.assertEqual(sys.getrefcount(b), 2)
+
+        w = QWidget()
+
+        # transfer ref
+        w.setLayout(l)
+
+        self.assertEqual(sys.getrefcount(b), 3)
+
+    @unittest.skipUnless(hasattr(sys, "getrefcount"), f"{sys.implementation.name} has no refcount")
+    def testReferenceTransfer(self):
+        b = QPushButton("teste")
+        l = QHBoxLayout()
+
+        # keep ref
+        l.addWidget(b)
+        self.assertEqual(sys.getrefcount(b), 3)
+
+        w = QWidget()
+
+        # transfer ref
+        w.setLayout(l)
+
+        self.assertEqual(sys.getrefcount(b), 3)
+
+        # release ref
+        del w
+
+        self.assertEqual(sys.getrefcount(b), 2)
+
+    def testMissingFunctions(self):
+        w = QWidget()
+        b = QPushButton("test")
+        l = MissingItemAtLayout()
+
+        l.addWidget(b)
+
+        self.assertRaises(RuntimeError, w.setLayout, l)
+
+    def testQFormLayout(self):
+        w = QWidget()
+        formLayout = QFormLayout()
+        spacer = QSpacerItem(100, 30)
+        formLayout.setItem(0, QFormLayout.SpanningRole, spacer)
+        w.setLayout(formLayout)
+        w.show()
+        QTimer.singleShot(10, w.close)
+        self.app.exec()
+        del w
+        # PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
+        gc.collect()
+        # PYSIDE-535: Why do I need to do it twice, here?
+        gc.collect()
+        self.assertRaises(RuntimeError, spacer.isEmpty)
+
+    def testConstructorProperties(self):
+        """PYSIDE-1986, test passing properties to the constructor of
+           QHBoxLayout, which does not have default arguments."""
+        layout = QHBoxLayout(objectName="layout", spacing=30)
+        self.assertEqual(layout.spacing(), 30)
+        self.assertEqual(layout.objectName(), "layout")
+
+
+if __name__ == '__main__':
+    unittest.main()