1 files changed, 73 insertions, 0 deletions
diff --git a/sources/pyside6/tests/tools/metaobjectdump/test_metaobjectdump.py b/sources/pyside6/tests/tools/metaobjectdump/test_metaobjectdump.py
new file mode 100644
index 000000000..5e7412bf5
--- /dev/null
+++ b/sources/pyside6/tests/tools/metaobjectdump/test_metaobjectdump.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
+
+import os
+import sys
+import subprocess
+import unittest
+
+from pathlib import Path
+
+"""Test for pyside6-metaobjectdump.
+
+The test prints commands to regenerate the base line."""
+
+
+def msg_regenerate(cmd, baseline):
+    cmd_str = " ".join(cmd)
+    return (f"# Regenerate {baseline}\n"
+            f"{cmd_str} > {baseline}")
+
+
+@unittest.skipIf(sys.version_info < (3, 8), "Needs a recent ast module")
+class TestMetaObjectDump(unittest.TestCase):
+    """Test for the metaobjectdump tool. Compares the output of metaobjectdump.py for some
+       example files in compact format."""
+
+    def setUp(self):
+        super().setUp()
+        self._dir = Path(__file__).parent.resolve()
+        pyside_root = self._dir.parents[4]
+        self._metaobjectdump_tool = pyside_root / "sources" / "pyside-tools" / "metaobjectdump.py"
+        self._examples_dir = (pyside_root / "examples" /
+                              "qml" / "tutorials" / "extending-qml-advanced")
+
+        # Compile a list of examples (tuple [file, base line, command])
+        examples = []
+        for d in ["advanced2-Inheritance-and-coercion", "advanced3-Default-properties"]:
+            example_dir = self._examples_dir / d
+            examples.append(example_dir / "birthdayparty.py")
+            examples.append(example_dir / "person.py")
+        # Example with slot
+        examples.append(self._examples_dir / "advanced6-Property-value-source"
+                        / "happybirthdaysong.py")
+
+        metaobjectdump_cmd_root = [sys.executable, os.fspath(self._metaobjectdump_tool), "-c", "-s"]
+        self._examples = []
+        for example in examples:
+            name = example.parent.name
+            # Simplify "advanced2-Inheritance-and-coercion" -> "inheritance"
+            short_name = name.split("-")[1].lower()
+            baseline_name = f"baseline_{short_name}_{example.stem}.json"
+            baseline_path = self._dir / baseline_name
+            cmd = metaobjectdump_cmd_root + [os.fspath(example)]
+            self._examples.append((example, baseline_path, cmd))
+            print(msg_regenerate(cmd, baseline_path))
+
+    def testMetaObjectDump(self):
+        self.assertTrue(self._examples_dir.is_dir())
+        self.assertTrue(self._metaobjectdump_tool.is_file())
+
+        for example, baseline, cmd in self._examples:
+            self.assertTrue(example.is_file())
+            self.assertTrue(baseline.is_file())
+            baseline_data = baseline.read_text()
+
+            popen = subprocess.Popen(cmd, stdout=subprocess.PIPE)
+            actual = popen.communicate()[0].decode("UTF-8")
+            self.assertEqual(popen.returncode, 0)
+            self.assertEqual(baseline_data, actual)
+
+
+if __name__ == '__main__':
+    unittest.main()