1 files changed, 66 insertions, 0 deletions
diff --git a/sources/pyside6/tests/QtCore/qfileread_test.py b/sources/pyside6/tests/QtCore/qfileread_test.py
new file mode 100644
index 000000000..c66a27f8a
--- /dev/null
+++ b/sources/pyside6/tests/QtCore/qfileread_test.py
@@ -0,0 +1,66 @@
+# 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 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 PySide6.QtCore import QIODevice, QTemporaryFile
+
+
+class FileChild1(QTemporaryFile):
+    pass
+
+
+class FileChild2(QTemporaryFile):
+    def readData(self, maxlen):
+        return super(FileChild2, self).readData(maxlen)
+
+    def readLineData(self, maxlen):
+        return super(FileChild2, self).readLineData(maxlen)
+
+
+class readDataTest(unittest.TestCase):
+    '''Test case for readData and readLineData'''
+
+    def setUp(self):
+        '''Acquire resources'''
+        self.filename1 = FileChild1()
+        self.assertTrue(self.filename1.open())
+        self.filename1.write(bytes('Test text for testing', "UTF-8"))
+
+        self.filename2 = FileChild2()
+        self.assertTrue(self.filename2.open())
+        self.filename2.write(bytes('Test text for testing', "UTF-8"))
+
+    def tearDown(self):
+        '''release resources'''
+        pass
+
+    def testBasic(self):
+        '''QTemporaryFile.read'''
+        self.filename1.seek(0)
+        s1 = self.filename1.read(50)
+        self.assertEqual(s1, 'Test text for testing')
+
+    def testBug40(self):
+        self.filename2.seek(0)
+        s2 = self.filename2.read(50)
+        self.assertEqual(s2, 'Test text for testing')
+
+        self.filename2.seek(0)
+        s2 = self.filename2.readLine(22)
+        self.assertEqual(s2, 'Test text for testing')
+
+        self.filename1.seek(0)
+        s1 = self.filename1.read(50)
+        self.assertEqual(s1, s2)
+
+
+if __name__ == '__main__':
+    unittest.main()