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ZeroIntensity merged 1 commit into from
Jul 18, 2026
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Improve getopt and unix_getopt test coverage #153933

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31 changes: 31 additions & 0 deletions Lib/test/test_getopt.py
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Original file line number Diff line number Diff line change
Expand Up @@ -149,6 +149,18 @@ def test_getopt(self):
('-a', ''), ('--alpha', '')])
self.assertEqual(args, ['arg1', 'arg2'])

# Allow string for single long argument
opts, args = getopt.getopt(cmdline, 'a::', 'alpha=?')
self.assertEqual(opts, [('-a', '1'), ('--alpha', '2'), ('--alpha', ''),
('-a', ''), ('--alpha', '')])
self.assertEqual(args, ['arg1', 'arg2'])

# Pass everything after -- as args
cmdline = ['-a1', '--alpha=2', '--', '-b', '--beta=5']
opts, args = getopt.getopt(cmdline, 'a:b', ['alpha=', 'beta'])
self.assertEqual(opts, [('-a', '1'), ('--alpha', '2')])
self.assertEqual(args, ['-b', '--beta=5'])

self.assertError(getopt.getopt, cmdline, 'a:b', ['alpha', 'beta'])

def test_gnu_getopt(self):
Expand Down Expand Up @@ -191,6 +203,25 @@ def test_gnu_getopt(self):
self.assertEqual(args, ['arg1', '-b', '1', '--alpha', '--beta=2',
'--beta', '3', 'arg2'])

# Allow string for single long argument
opts, args = getopt.gnu_getopt(cmdline, 'ab:', 'alpha')
self.assertEqual(opts, [('-a', '')])
self.assertEqual(args, ['arg1', '-b', '1', '--alpha', '--beta=2',
'--beta', '3', 'arg2'])

# Pass everything after -- as args
cmdline = ['-a1', '--alpha=2', '--', '-b', '--beta=5']
opts, args = getopt.gnu_getopt(cmdline, 'a:b', ['alpha=', 'beta'])
self.assertEqual(opts, [('-a', '1'), ('--alpha', '2')])
self.assertEqual(args, ['-b', '--beta=5'])

# In order arguments
cmdline = ["gamma", "--alpha=3"]
opts, args = getopt.gnu_getopt(cmdline, '-', ["alpha="])
self.assertEqual(opts, [(None, ['gamma']), ('--alpha', '3')])
self.assertEqual(args, [])


def test_issue4629(self):
longopts, shortopts = getopt.getopt(['--help='], '', ['help='])
self.assertEqual(longopts, [('--help', '')])
Expand Down
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