1 files changed, 77 insertions, 0 deletions
diff --git a/sources/pyside6/tests/QtWidgets/bug_871.py b/sources/pyside6/tests/QtWidgets/bug_871.py
new file mode 100644
index 000000000..9f2481d8e
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+++ b/sources/pyside6/tests/QtWidgets/bug_871.py
@@ -0,0 +1,77 @@
+#############################################################################
+##
+## Copyright (C) 2016 The Qt Company Ltd.
+## Contact: https://www.qt.io/licensing/
+##
+## This file is part of the test suite of Qt for Python.
+##
+## $QT_BEGIN_LICENSE:GPL-EXCEPT$
+## Commercial License Usage
+## Licensees holding valid commercial Qt licenses may use this file in
+## accordance with the commercial license agreement provided with the
+## Software or, alternatively, in accordance with the terms contained in
+## a written agreement between you and The Qt Company. For licensing terms
+## and conditions see https://www.qt.io/terms-conditions. For further
+## information use the contact form at https://www.qt.io/contact-us.
+##
+## GNU General Public License Usage
+## Alternatively, this file may be used under the terms of the GNU
+## General Public License version 3 as published by the Free Software
+## Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+## included in the packaging of this file. Please review the following
+## information to ensure the GNU General Public License requirements will
+## be met: https://www.gnu.org/licenses/gpl-3.0.html.
+##
+## $QT_END_LICENSE$
+##
+#############################################################################
+
+import os
+import sys
+import unittest
+
+sys.path.append(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
+from init_paths import init_test_paths
+init_test_paths(False)
+
+from helper.usesqapplication import UsesQApplication
+from PySide6.QtGui import QValidator, QIntValidator
+from PySide6.QtWidgets import QLineEdit
+
+'''Bug #871 - http://bugs.pyside.org/show_bug.cgi?id=871'''
+
+
+class BlankIntValidator(QIntValidator):
+    def validate(self,input,pos):
+        if input == '':
+            return QValidator.Acceptable, input, pos
+        else:
+            return QIntValidator.validate(self,input,pos)
+
+
+class Bug871Test(UsesQApplication):
+    def testWithoutValidator(self):
+        edit = QLineEdit()
+        self.assertEqual(edit.text(), '')
+        edit.insert('1')
+        self.assertEqual(edit.text(), '1')
+        edit.insert('a')
+        self.assertEqual(edit.text(), '1a')
+        edit.insert('2')
+        self.assertEqual(edit.text(), '1a2')
+
+    def testWithIntValidator(self):
+        edit = QLineEdit()
+        edit.setValidator(BlankIntValidator(edit))
+        self.assertEqual(edit.text(), '')
+        edit.insert('1')
+        self.assertEqual(edit.text(), '1')
+        edit.insert('a')
+        self.assertEqual(edit.text(), '1')
+        edit.insert('2')
+        self.assertEqual(edit.text(), '12')
+
+
+if __name__ == "__main__":
+   unittest.main()
+