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15738427f6
This fixes a regression introduced in the commit for issue #15302, which switched regrtest from getopt to argparse.
100 lines
3.1 KiB
Python
100 lines
3.1 KiB
Python
"""
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Tests of regrtest.py.
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"""
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import argparse
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import getopt
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import unittest
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from test import regrtest, support
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def old_parse_args(args):
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"""Parse arguments as regrtest did strictly prior to 3.4.
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Raises getopt.GetoptError on bad arguments.
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"""
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return getopt.getopt(args, 'hvqxsoS:rf:lu:t:TD:NLR:FdwWM:nj:Gm:',
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['help', 'verbose', 'verbose2', 'verbose3', 'quiet',
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'exclude', 'single', 'slow', 'randomize', 'fromfile=', 'findleaks',
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'use=', 'threshold=', 'coverdir=', 'nocoverdir',
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'runleaks', 'huntrleaks=', 'memlimit=', 'randseed=',
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'multiprocess=', 'coverage', 'slaveargs=', 'forever', 'debug',
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'start=', 'nowindows', 'header', 'testdir=', 'timeout=', 'wait',
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'failfast', 'match='])
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class ParseArgsTestCase(unittest.TestCase):
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"""Test that regrtest's parsing code matches the prior getopt behavior."""
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def _parse_args(self, args):
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# This is the same logic as that used in regrtest.main()
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parser = regrtest._create_parser()
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ns = parser.parse_args(args=args)
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opts = regrtest._convert_namespace_to_getopt(ns)
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return opts, ns.args
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def _check_args(self, args, expected=None):
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"""
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The expected parameter is for cases when the behavior of the new
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parse_args differs from the old (but deliberately so).
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"""
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if expected is None:
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try:
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expected = old_parse_args(args)
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except getopt.GetoptError:
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# Suppress usage string output when an argparse.ArgumentError
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# error is raised.
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with support.captured_stderr():
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self.assertRaises(SystemExit, self._parse_args, args)
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return
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# The new parse_args() sorts by long option string.
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expected[0].sort()
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actual = self._parse_args(args)
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self.assertEqual(actual, expected)
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def test_unrecognized_argument(self):
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self._check_args(['--xxx'])
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def test_value_not_provided(self):
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self._check_args(['--start'])
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def test_short_option(self):
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# getopt returns the short option whereas argparse returns the long.
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expected = ([('--quiet', '')], [])
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self._check_args(['-q'], expected=expected)
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def test_long_option(self):
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self._check_args(['--quiet'])
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def test_long_option__partial(self):
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self._check_args(['--qui'])
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def test_two_options(self):
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self._check_args(['--quiet', '--exclude'])
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def test_option_with_value(self):
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self._check_args(['--start', 'foo'])
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def test_option_with_empty_string_value(self):
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self._check_args(['--start', ''])
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def test_arg(self):
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self._check_args(['foo'])
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def test_option_and_arg(self):
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self._check_args(['--quiet', 'foo'])
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def test_fromfile(self):
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self._check_args(['--fromfile', 'file'])
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def test_match(self):
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self._check_args(['--match', 'pattern'])
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def test_randomize(self):
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self._check_args(['--randomize'])
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def test_main():
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support.run_unittest(__name__)
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if __name__ == '__main__':
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test_main()
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