1 files changed, 41 insertions, 0 deletions
diff --git a/sources/pyside6/tests/QtCore/bug_408.py b/sources/pyside6/tests/QtCore/bug_408.py
new file mode 100644
index 000000000..30459172c
--- /dev/null
+++ b/sources/pyside6/tests/QtCore/bug_408.py
@@ -0,0 +1,41 @@
+# 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, QTextStream
+
+
+class MyDevice(QIODevice):
+    def __init__(self, txt):
+        super().__init__()
+        self.txt = txt
+        self.ptr = 0
+
+    def readData(self, size):
+        size = min(len(self.txt) - self.ptr, size)
+        retval = self.txt[self.ptr:size]
+        self.ptr += size
+        return retval
+
+
+class QIODeviceTest(unittest.TestCase):
+
+    def testIt(self):
+        device = MyDevice("hello world\nhello again")
+        device.open(QIODevice.ReadOnly)
+
+        s = QTextStream(device)
+        self.assertEqual(s.readLine(), "hello world")
+        self.assertEqual(s.readLine(), "hello again")
+
+
+if __name__ == '__main__':
+    unittest.main()