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bpo-40527: Fix command line argument parsing (GH-19955)

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Victor Stinner 2020-05-06 15:22:17 +02:00 • committed by GitHub
parent eff870b618
commit 2668a9a5aa
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3 changed files with 29 additions and 7 deletions
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11
Lib/test/test_cmd_line.py
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@ -756,6 +756,17 @@ class CmdLineTest(unittest.TestCase):
self.assertEqual(proc.returncode, 0, proc)
self.assertEqual(proc.stdout.strip(), b'0')
def test_parsing_error(self):
args = [sys.executable, '-I', '--unknown-option']
proc = subprocess.run(args,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
text=True)
err_msg = "unknown option --unknown-option\nusage: "
self.assertTrue(proc.stderr.startswith(err_msg), proc.stderr)
self.assertNotEqual(proc.returncode, 0)
@unittest.skipIf(interpreter_requires_environment(),
'Cannot run -I tests when PYTHON env vars are required.')
class IgnoreEnvironmentTest(unittest.TestCase):