1 files changed, 24 insertions, 0 deletions
diff --git a/Lib/test/test_cmd_line_script.py b/Lib/test/test_cmd_line_script.py
index 6b59d96..70f7d1e 100644
--- a/Lib/test/test_cmd_line_script.py
+++ b/Lib/test/test_cmd_line_script.py
@@ -294,6 +294,30 @@ class CmdLineTest(unittest.TestCase):
                     print(out)
                 self.assertEqual(rc, 1)
 
+    def test_non_ascii(self):
+        # Mac OS X denies the creation of a file with an invalid UTF-8 name.
+        # Windows allows to create a name with an arbitrary bytes name, but
+        # Python cannot a undecodable bytes argument to a subprocess.
+        if (support.TESTFN_UNDECODABLE
+        and sys.platform not in ('win32', 'darwin')):
+            name = os.fsdecode(support.TESTFN_UNDECODABLE)
+        elif support.TESTFN_NONASCII:
+            name = support.TESTFN_NONASCII
+        else:
+            self.skipTest("need support.TESTFN_NONASCII")
+
+        # Issue #16218
+        source = 'print(ascii(__file__))\n'
+        script_name = _make_test_script(os.curdir, name, source)
+        self.addCleanup(support.unlink, script_name)
+        rc, stdout, stderr = assert_python_ok(script_name)
+        self.assertEqual(
+            ascii(script_name),
+            stdout.rstrip().decode('ascii'),
+            'stdout=%r stderr=%r' % (stdout, stderr))
+        self.assertEqual(0, rc)
+
+
 def test_main():
     support.run_unittest(CmdLineTest)
     support.reap_children()