1 files changed, 73 insertions, 0 deletions
diff --git a/sources/pyside6/tests/QtCore/qsharedmemory_test.py b/sources/pyside6/tests/QtCore/qsharedmemory_test.py
new file mode 100644
index 000000000..ed8a47939
--- /dev/null
+++ b/sources/pyside6/tests/QtCore/qsharedmemory_test.py
@@ -0,0 +1,73 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+'''Unit tests for QSharedMemory'''
+
+import ctypes
+import os
+import subprocess
+import sys
+import unittest
+
+from pathlib import Path
+FILE = Path(__file__).resolve()
+sys.path.append(os.fspath(FILE.parents[1]))
+from init_paths import init_test_paths
+init_test_paths(False)
+
+from PySide6.QtCore import QSharedMemory, QRandomGenerator, qVersion
+from qsharedmemory_client import read_string
+
+
+TEST_STRING = 'ABCD'
+
+
+def run(cmd):
+    # FIXME Python 3.7: Use subprocess.run()
+    proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=False,
+                            universal_newlines=True)
+    output, error = proc.communicate()
+    proc.wait()
+    return_code = proc.returncode
+    return (return_code, output, error)
+
+
+class QSharedMemoryTest(unittest.TestCase):
+
+    def setUp(self):
+        r = QRandomGenerator.global_().bounded(1000)
+        v = qVersion()
+        self._name = f"pyside{v}_test_{r}"
+        print(self._name)
+        self._shared_memory = QSharedMemory(self._name)
+
+    def tearDown(self):
+        if self._shared_memory.isAttached():
+            self._shared_memory.detach()
+
+    def test(self):
+        # Create and write
+        self.assertTrue(self._shared_memory.create(1024, QSharedMemory.ReadWrite))
+        self.assertTrue(self._shared_memory.lock())
+        mv = memoryview(self._shared_memory.data())
+        for idx, c in enumerate(TEST_STRING + chr(0)):
+            mv[idx] = ord(c)
+        mv = None
+        self.assertTrue(self._shared_memory.unlock())
+
+        # Read
+        self.assertTrue(self._shared_memory.lock())
+        self.assertEqual(read_string(self._shared_memory), TEST_STRING)
+        self.assertTrue(self._shared_memory.unlock())
+
+        # Run a subprocess and let it read
+        client = FILE.parent / 'qsharedmemory_client.py'
+        returncode, output, error = run([sys.executable, client, self._name])
+        if error:
+            print(error, file=sys.stderr)
+        self.assertEqual(returncode, 0)
+        self.assertEqual(output, TEST_STRING)
+
+
+if __name__ == '__main__':
+    unittest.main()