Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_getopt.py @ 79675:c0a2294de787 2.7

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Issue #16199: Backport 2to3 typo fix from 3.2.
author Chris Jerdonek <chris.jerdonek@gmail.com>
date Thu, 11 Oct 2012 16:15:46 -0700
parents b36cb4602e21
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 # test_getopt.py
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2 # David Goodger <dgoodger@bigfoot.com> 2000-08-19
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3
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4 from test.test_support import verbose, run_doctest, run_unittest, EnvironmentVarGuard
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5 import unittest
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6
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7 import getopt
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8
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9 sentinel = object()
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10
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11 class GetoptTests(unittest.TestCase):
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12 def setUp(self):
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13 self.env = EnvironmentVarGuard()
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14 if "POSIXLY_CORRECT" in self.env:
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15 del self.env["POSIXLY_CORRECT"]
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16
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17 def tearDown(self):
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18 self.env.__exit__()
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19 del self.env
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20
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21 def assertError(self, *args, **kwargs):
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22 self.assertRaises(getopt.GetoptError, *args, **kwargs)
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23
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24 def test_short_has_arg(self):
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25 self.assertTrue(getopt.short_has_arg('a', 'a:'))
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26 self.assertFalse(getopt.short_has_arg('a', 'a'))
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27 self.assertError(getopt.short_has_arg, 'a', 'b')
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28
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29 def test_long_has_args(self):
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30 has_arg, option = getopt.long_has_args('abc', ['abc='])
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31 self.assertTrue(has_arg)
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32 self.assertEqual(option, 'abc')
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33
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34 has_arg, option = getopt.long_has_args('abc', ['abc'])
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35 self.assertFalse(has_arg)
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36 self.assertEqual(option, 'abc')
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37
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38 has_arg, option = getopt.long_has_args('abc', ['abcd'])
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39 self.assertFalse(has_arg)
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40 self.assertEqual(option, 'abcd')
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41
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42 self.assertError(getopt.long_has_args, 'abc', ['def'])
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43 self.assertError(getopt.long_has_args, 'abc', [])
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44 self.assertError(getopt.long_has_args, 'abc', ['abcd','abcde'])
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45
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46 def test_do_shorts(self):
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47 opts, args = getopt.do_shorts([], 'a', 'a', [])
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48 self.assertEqual(opts, [('-a', '')])
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49 self.assertEqual(args, [])
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50
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51 opts, args = getopt.do_shorts([], 'a1', 'a:', [])
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52 self.assertEqual(opts, [('-a', '1')])
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53 self.assertEqual(args, [])
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54
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55 #opts, args = getopt.do_shorts([], 'a=1', 'a:', [])
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56 #self.assertEqual(opts, [('-a', '1')])
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57 #self.assertEqual(args, [])
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58
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59 opts, args = getopt.do_shorts([], 'a', 'a:', ['1'])
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60 self.assertEqual(opts, [('-a', '1')])
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61 self.assertEqual(args, [])
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62
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63 opts, args = getopt.do_shorts([], 'a', 'a:', ['1', '2'])
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64 self.assertEqual(opts, [('-a', '1')])
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65 self.assertEqual(args, ['2'])
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66
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67 self.assertError(getopt.do_shorts, [], 'a1', 'a', [])
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68 self.assertError(getopt.do_shorts, [], 'a', 'a:', [])
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69
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70 def test_do_longs(self):
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71 opts, args = getopt.do_longs([], 'abc', ['abc'], [])
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72 self.assertEqual(opts, [('--abc', '')])
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73 self.assertEqual(args, [])
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74
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75 opts, args = getopt.do_longs([], 'abc=1', ['abc='], [])
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76 self.assertEqual(opts, [('--abc', '1')])
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77 self.assertEqual(args, [])
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78
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79 opts, args = getopt.do_longs([], 'abc=1', ['abcd='], [])
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80 self.assertEqual(opts, [('--abcd', '1')])
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81 self.assertEqual(args, [])
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82
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83 opts, args = getopt.do_longs([], 'abc', ['ab', 'abc', 'abcd'], [])
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84 self.assertEqual(opts, [('--abc', '')])
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85 self.assertEqual(args, [])
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86
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87 # Much like the preceding, except with a non-alpha character ("-") in
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88 # option name that precedes "="; failed in
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89 # http://python.org/sf/126863
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90 opts, args = getopt.do_longs([], 'foo=42', ['foo-bar', 'foo=',], [])
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91 self.assertEqual(opts, [('--foo', '42')])
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92 self.assertEqual(args, [])
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93
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94 self.assertError(getopt.do_longs, [], 'abc=1', ['abc'], [])
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95 self.assertError(getopt.do_longs, [], 'abc', ['abc='], [])
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96
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97 def test_getopt(self):
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98 # note: the empty string between '-a' and '--beta' is significant:
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99 # it simulates an empty string option argument ('-a ""') on the
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100 # command line.
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101 cmdline = ['-a', '1', '-b', '--alpha=2', '--beta', '-a', '3', '-a',
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102 '', '--beta', 'arg1', 'arg2']
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103
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104 opts, args = getopt.getopt(cmdline, 'a:b', ['alpha=', 'beta'])
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105 self.assertEqual(opts, [('-a', '1'), ('-b', ''),
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106 ('--alpha', '2'), ('--beta', ''),
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107 ('-a', '3'), ('-a', ''), ('--beta', '')])
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108 # Note ambiguity of ('-b', '') and ('-a', '') above. This must be
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109 # accounted for in the code that calls getopt().
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110 self.assertEqual(args, ['arg1', 'arg2'])
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111
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112 self.assertError(getopt.getopt, cmdline, 'a:b', ['alpha', 'beta'])
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113
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114 def test_gnu_getopt(self):
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115 # Test handling of GNU style scanning mode.
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116 cmdline = ['-a', 'arg1', '-b', '1', '--alpha', '--beta=2']
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117
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118 # GNU style
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119 opts, args = getopt.gnu_getopt(cmdline, 'ab:', ['alpha', 'beta='])
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120 self.assertEqual(args, ['arg1'])
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121 self.assertEqual(opts, [('-a', ''), ('-b', '1'),
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122 ('--alpha', ''), ('--beta', '2')])
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123
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124 # recognize "-" as an argument
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125 opts, args = getopt.gnu_getopt(['-a', '-', '-b', '-'], 'ab:', [])
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126 self.assertEqual(args, ['-'])
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127 self.assertEqual(opts, [('-a', ''), ('-b', '-')])
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128
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129 # Posix style via +
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130 opts, args = getopt.gnu_getopt(cmdline, '+ab:', ['alpha', 'beta='])
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131 self.assertEqual(opts, [('-a', '')])
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132 self.assertEqual(args, ['arg1', '-b', '1', '--alpha', '--beta=2'])
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133
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134 # Posix style via POSIXLY_CORRECT
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135 self.env["POSIXLY_CORRECT"] = "1"
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136 opts, args = getopt.gnu_getopt(cmdline, 'ab:', ['alpha', 'beta='])
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137 self.assertEqual(opts, [('-a', '')])
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138 self.assertEqual(args, ['arg1', '-b', '1', '--alpha', '--beta=2'])
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139
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140 def test_libref_examples(self):
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141 s = """
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142 Examples from the Library Reference: Doc/lib/libgetopt.tex
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143
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144 An example using only Unix style options:
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145
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146
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147 >>> import getopt
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148 >>> args = '-a -b -cfoo -d bar a1 a2'.split()
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149 >>> args
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150 ['-a', '-b', '-cfoo', '-d', 'bar', 'a1', 'a2']
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151 >>> optlist, args = getopt.getopt(args, 'abc:d:')
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152 >>> optlist
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153 [('-a', ''), ('-b', ''), ('-c', 'foo'), ('-d', 'bar')]
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154 >>> args
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155 ['a1', 'a2']
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156
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157 Using long option names is equally easy:
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158
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159
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160 >>> s = '--condition=foo --testing --output-file abc.def -x a1 a2'
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161 >>> args = s.split()
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162 >>> args
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163 ['--condition=foo', '--testing', '--output-file', 'abc.def', '-x', 'a1', 'a2']
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164 >>> optlist, args = getopt.getopt(args, 'x', [
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165 ... 'condition=', 'output-file=', 'testing'])
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166 >>> optlist
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167 [('--condition', 'foo'), ('--testing', ''), ('--output-file', 'abc.def'), ('-x', '')]
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168 >>> args
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169 ['a1', 'a2']
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170 """
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171
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172 import types
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173 m = types.ModuleType("libreftest", s)
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174 run_doctest(m, verbose)
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175
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176 def test_issue4629(self):
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177 longopts, shortopts = getopt.getopt(['--help='], '', ['help='])
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178 self.assertEqual(longopts, [('--help', '')])
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179 longopts, shortopts = getopt.getopt(['--help=x'], '', ['help='])
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180 self.assertEqual(longopts, [('--help', 'x')])
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181 self.assertRaises(getopt.GetoptError, getopt.getopt, ['--help='], '', ['help'])
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182
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183 def test_main():
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184 run_unittest(GetoptTests)
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185
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186 if __name__ == "__main__":
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187 test_main()