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188 lines
6.8 KiB
188 lines
6.8 KiB
# test_getopt.py
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# David Goodger <dgoodger@bigfoot.com> 2000-08-19
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from test.test_support import verbose, run_doctest, run_unittest, EnvironmentVarGuard
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import unittest
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import getopt
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sentinel = object()
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class GetoptTests(unittest.TestCase):
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def setUp(self):
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self.env = EnvironmentVarGuard()
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if "POSIXLY_CORRECT" in self.env:
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del self.env["POSIXLY_CORRECT"]
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def tearDown(self):
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self.env.__exit__()
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del self.env
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def assertError(self, *args, **kwargs):
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self.assertRaises(getopt.GetoptError, *args, **kwargs)
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def test_short_has_arg(self):
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self.assertTrue(getopt.short_has_arg('a', 'a:'))
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self.assertFalse(getopt.short_has_arg('a', 'a'))
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self.assertError(getopt.short_has_arg, 'a', 'b')
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def test_long_has_args(self):
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has_arg, option = getopt.long_has_args('abc', ['abc='])
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self.assertTrue(has_arg)
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self.assertEqual(option, 'abc')
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has_arg, option = getopt.long_has_args('abc', ['abc'])
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self.assertFalse(has_arg)
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self.assertEqual(option, 'abc')
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has_arg, option = getopt.long_has_args('abc', ['abcd'])
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self.assertFalse(has_arg)
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self.assertEqual(option, 'abcd')
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self.assertError(getopt.long_has_args, 'abc', ['def'])
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self.assertError(getopt.long_has_args, 'abc', [])
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self.assertError(getopt.long_has_args, 'abc', ['abcd','abcde'])
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def test_do_shorts(self):
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opts, args = getopt.do_shorts([], 'a', 'a', [])
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self.assertEqual(opts, [('-a', '')])
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self.assertEqual(args, [])
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opts, args = getopt.do_shorts([], 'a1', 'a:', [])
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self.assertEqual(opts, [('-a', '1')])
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self.assertEqual(args, [])
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#opts, args = getopt.do_shorts([], 'a=1', 'a:', [])
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#self.assertEqual(opts, [('-a', '1')])
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#self.assertEqual(args, [])
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opts, args = getopt.do_shorts([], 'a', 'a:', ['1'])
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self.assertEqual(opts, [('-a', '1')])
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self.assertEqual(args, [])
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opts, args = getopt.do_shorts([], 'a', 'a:', ['1', '2'])
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self.assertEqual(opts, [('-a', '1')])
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self.assertEqual(args, ['2'])
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self.assertError(getopt.do_shorts, [], 'a1', 'a', [])
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self.assertError(getopt.do_shorts, [], 'a', 'a:', [])
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def test_do_longs(self):
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opts, args = getopt.do_longs([], 'abc', ['abc'], [])
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self.assertEqual(opts, [('--abc', '')])
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self.assertEqual(args, [])
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opts, args = getopt.do_longs([], 'abc=1', ['abc='], [])
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self.assertEqual(opts, [('--abc', '1')])
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self.assertEqual(args, [])
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opts, args = getopt.do_longs([], 'abc=1', ['abcd='], [])
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self.assertEqual(opts, [('--abcd', '1')])
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self.assertEqual(args, [])
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opts, args = getopt.do_longs([], 'abc', ['ab', 'abc', 'abcd'], [])
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self.assertEqual(opts, [('--abc', '')])
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self.assertEqual(args, [])
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# Much like the preceding, except with a non-alpha character ("-") in
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# option name that precedes "="; failed in
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# http://python.org/sf/126863
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opts, args = getopt.do_longs([], 'foo=42', ['foo-bar', 'foo=',], [])
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self.assertEqual(opts, [('--foo', '42')])
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self.assertEqual(args, [])
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self.assertError(getopt.do_longs, [], 'abc=1', ['abc'], [])
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self.assertError(getopt.do_longs, [], 'abc', ['abc='], [])
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def test_getopt(self):
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# note: the empty string between '-a' and '--beta' is significant:
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# it simulates an empty string option argument ('-a ""') on the
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# command line.
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cmdline = ['-a', '1', '-b', '--alpha=2', '--beta', '-a', '3', '-a',
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'', '--beta', 'arg1', 'arg2']
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opts, args = getopt.getopt(cmdline, 'a:b', ['alpha=', 'beta'])
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self.assertEqual(opts, [('-a', '1'), ('-b', ''),
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('--alpha', '2'), ('--beta', ''),
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('-a', '3'), ('-a', ''), ('--beta', '')])
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# Note ambiguity of ('-b', '') and ('-a', '') above. This must be
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# accounted for in the code that calls getopt().
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self.assertEqual(args, ['arg1', 'arg2'])
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self.assertError(getopt.getopt, cmdline, 'a:b', ['alpha', 'beta'])
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def test_gnu_getopt(self):
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# Test handling of GNU style scanning mode.
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cmdline = ['-a', 'arg1', '-b', '1', '--alpha', '--beta=2']
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# GNU style
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opts, args = getopt.gnu_getopt(cmdline, 'ab:', ['alpha', 'beta='])
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self.assertEqual(args, ['arg1'])
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self.assertEqual(opts, [('-a', ''), ('-b', '1'),
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('--alpha', ''), ('--beta', '2')])
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# recognize "-" as an argument
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opts, args = getopt.gnu_getopt(['-a', '-', '-b', '-'], 'ab:', [])
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self.assertEqual(args, ['-'])
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self.assertEqual(opts, [('-a', ''), ('-b', '-')])
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# Posix style via +
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opts, args = getopt.gnu_getopt(cmdline, '+ab:', ['alpha', 'beta='])
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self.assertEqual(opts, [('-a', '')])
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self.assertEqual(args, ['arg1', '-b', '1', '--alpha', '--beta=2'])
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# Posix style via POSIXLY_CORRECT
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self.env["POSIXLY_CORRECT"] = "1"
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opts, args = getopt.gnu_getopt(cmdline, 'ab:', ['alpha', 'beta='])
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self.assertEqual(opts, [('-a', '')])
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self.assertEqual(args, ['arg1', '-b', '1', '--alpha', '--beta=2'])
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def test_libref_examples(self):
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s = """
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Examples from the Library Reference: Doc/lib/libgetopt.tex
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An example using only Unix style options:
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>>> import getopt
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>>> args = '-a -b -cfoo -d bar a1 a2'.split()
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>>> args
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['-a', '-b', '-cfoo', '-d', 'bar', 'a1', 'a2']
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>>> optlist, args = getopt.getopt(args, 'abc:d:')
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>>> optlist
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[('-a', ''), ('-b', ''), ('-c', 'foo'), ('-d', 'bar')]
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>>> args
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['a1', 'a2']
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Using long option names is equally easy:
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>>> s = '--condition=foo --testing --output-file abc.def -x a1 a2'
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>>> args = s.split()
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>>> args
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['--condition=foo', '--testing', '--output-file', 'abc.def', '-x', 'a1', 'a2']
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>>> optlist, args = getopt.getopt(args, 'x', [
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... 'condition=', 'output-file=', 'testing'])
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>>> optlist
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[('--condition', 'foo'), ('--testing', ''), ('--output-file', 'abc.def'), ('-x', '')]
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>>> args
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['a1', 'a2']
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"""
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import types
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m = types.ModuleType("libreftest", s)
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run_doctest(m, verbose)
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def test_issue4629(self):
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longopts, shortopts = getopt.getopt(['--help='], '', ['help='])
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self.assertEqual(longopts, [('--help', '')])
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longopts, shortopts = getopt.getopt(['--help=x'], '', ['help='])
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self.assertEqual(longopts, [('--help', 'x')])
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self.assertRaises(getopt.GetoptError, getopt.getopt, ['--help='], '', ['help'])
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def test_main():
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run_unittest(GetoptTests)
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if __name__ == "__main__":
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test_main()
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