1 files changed, 21 insertions, 0 deletions
diff --git a/tests/extmod/marshal_micropython.py b/tests/extmod/marshal_micropython.py
new file mode 100644
index 0000000000..213b3bf318
--- /dev/null
+++ b/tests/extmod/marshal_micropython.py
@@ -0,0 +1,21 @@
+# Test the marshal module, MicroPython-specific functionality.
+
+try:
+    import marshal
+except ImportError:
+    print("SKIP")
+    raise SystemExit
+
+import unittest
+
+
+class Test(unittest.TestCase):
+    def test_function_with_children(self):
+        # Can't marshal a function with children (in this case the module has a child function f).
+        code = compile("def f(): pass", "", "exec")
+        with self.assertRaises(ValueError):
+            marshal.dumps(code)
+
+
+if __name__ == "__main__":
+    unittest.main()