Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_string.py @ 80661:94de77bd0b4b 2.7

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Issue #16194: document imp.load_dynamic problems when read several extension modules from the same binary object file.
author Andrew Svetlov <andrew.svetlov@gmail.com>
date Thu, 29 Nov 2012 19:51:28 +0200
parents ee5350f1d0c2
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 import unittest, string
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2 from test import test_support, string_tests
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3 from UserList import UserList
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4
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5 class StringTest(
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6 string_tests.CommonTest,
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7 string_tests.MixinStrStringUserStringTest
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8 ):
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9
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10 type2test = str
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11
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12 def checkequal(self, result, object, methodname, *args):
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13 realresult = getattr(string, methodname)(object, *args)
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14 self.assertEqual(
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15 result,
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16 realresult
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17 )
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18
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19 def checkraises(self, exc, object, methodname, *args):
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20 self.assertRaises(
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21 exc,
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22 getattr(string, methodname),
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23 object,
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24 *args
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25 )
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26
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27 def checkcall(self, object, methodname, *args):
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28 getattr(string, methodname)(object, *args)
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29
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30 def test_join(self):
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31 # These are the same checks as in string_test.ObjectTest.test_join
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32 # but the argument order ist different
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33 self.checkequal('a b c d', ['a', 'b', 'c', 'd'], 'join', ' ')
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34 self.checkequal('abcd', ('a', 'b', 'c', 'd'), 'join', '')
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35 self.checkequal('w x y z', string_tests.Sequence(), 'join', ' ')
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36 self.checkequal('abc', ('abc',), 'join', 'a')
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37 self.checkequal('z', UserList(['z']), 'join', 'a')
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38 if test_support.have_unicode:
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39 self.checkequal(unicode('a.b.c'), ['a', 'b', 'c'], 'join', unicode('.'))
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40 self.checkequal(unicode('a.b.c'), [unicode('a'), 'b', 'c'], 'join', '.')
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41 self.checkequal(unicode('a.b.c'), ['a', unicode('b'), 'c'], 'join', '.')
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42 self.checkequal(unicode('a.b.c'), ['a', 'b', unicode('c')], 'join', '.')
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43 self.checkraises(TypeError, ['a', unicode('b'), 3], 'join', '.')
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44 for i in [5, 25, 125]:
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45 self.checkequal(
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46 ((('a' * i) + '-') * i)[:-1],
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47 ['a' * i] * i, 'join', '-')
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48 self.checkequal(
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49 ((('a' * i) + '-') * i)[:-1],
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50 ('a' * i,) * i, 'join', '-')
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51
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52 self.checkraises(TypeError, string_tests.BadSeq1(), 'join', ' ')
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53 self.checkequal('a b c', string_tests.BadSeq2(), 'join', ' ')
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54 try:
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55 def f():
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56 yield 4 + ""
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57 self.fixtype(' ').join(f())
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58 except TypeError, e:
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59 if '+' not in str(e):
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60 self.fail('join() ate exception message')
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61 else:
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62 self.fail('exception not raised')
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63
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64
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65
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66
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67 class ModuleTest(unittest.TestCase):
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68
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69 def test_attrs(self):
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70 string.whitespace
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71 string.lowercase
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72 string.uppercase
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73 string.letters
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74 string.digits
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75 string.hexdigits
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76 string.octdigits
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77 string.punctuation
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78 string.printable
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79
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80 def test_atoi(self):
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81 self.assertEqual(string.atoi(" 1 "), 1)
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82 self.assertRaises(ValueError, string.atoi, " 1x")
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83 self.assertRaises(ValueError, string.atoi, " x1 ")
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84
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85 def test_atol(self):
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86 self.assertEqual(string.atol(" 1 "), 1L)
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87 self.assertRaises(ValueError, string.atol, " 1x ")
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88 self.assertRaises(ValueError, string.atol, " x1 ")
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89
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90 def test_atof(self):
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91 self.assertAlmostEqual(string.atof(" 1 "), 1.0)
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92 self.assertRaises(ValueError, string.atof, " 1x ")
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93 self.assertRaises(ValueError, string.atof, " x1 ")
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94
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95 def test_maketrans(self):
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96 transtable = '\000\001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037 !"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`xyzdefghijklmnopqrstuvwxyz{|}~\177\200\201\202\203\204\205\206\207\210\211\212\213\214\215\216\217\220\221\222\223\224\225\226\227\230\231\232\233\234\235\236\237\240\241\242\243\244\245\246\247\250\251\252\253\254\255\256\257\260\261\262\263\264\265\266\267\270\271\272\273\274\275\276\277\300\301\302\303\304\305\306\307\310\311\312\313\314\315\316\317\320\321\322\323\324\325\326\327\330\331\332\333\334\335\336\337\340\341\342\343\344\345\346\347\350\351\352\353\354\355\356\357\360\361\362\363\364\365\366\367\370\371\372\373\374\375\376\377'
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97
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98 self.assertEqual(string.maketrans('abc', 'xyz'), transtable)
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99 self.assertRaises(ValueError, string.maketrans, 'abc', 'xyzq')
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100
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101 def test_capwords(self):
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102 self.assertEqual(string.capwords('abc def ghi'), 'Abc Def Ghi')
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103 self.assertEqual(string.capwords('abc\tdef\nghi'), 'Abc Def Ghi')
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104 self.assertEqual(string.capwords('abc\t def \nghi'), 'Abc Def Ghi')
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105 self.assertEqual(string.capwords('ABC DEF GHI'), 'Abc Def Ghi')
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106 self.assertEqual(string.capwords('ABC-DEF-GHI', '-'), 'Abc-Def-Ghi')
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107 self.assertEqual(string.capwords('ABC-def DEF-ghi GHI'), 'Abc-def Def-ghi Ghi')
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108 self.assertEqual(string.capwords(' aBc DeF '), 'Abc Def')
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109 self.assertEqual(string.capwords('\taBc\tDeF\t'), 'Abc Def')
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110 self.assertEqual(string.capwords('\taBc\tDeF\t', '\t'), '\tAbc\tDef\t')
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111
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112 def test_formatter(self):
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113 fmt = string.Formatter()
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114 self.assertEqual(fmt.format("foo"), "foo")
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115
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116 self.assertEqual(fmt.format("foo{0}", "bar"), "foobar")
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117 self.assertEqual(fmt.format("foo{1}{0}-{1}", "bar", 6), "foo6bar-6")
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118 self.assertEqual(fmt.format("-{arg!r}-", arg='test'), "-'test'-")
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119
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120 # override get_value ############################################
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121 class NamespaceFormatter(string.Formatter):
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122 def __init__(self, namespace={}):
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123 string.Formatter.__init__(self)
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124 self.namespace = namespace
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125
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126 def get_value(self, key, args, kwds):
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127 if isinstance(key, str):
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128 try:
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129 # Check explicitly passed arguments first
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130 return kwds[key]
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131 except KeyError:
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132 return self.namespace[key]
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133 else:
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134 string.Formatter.get_value(key, args, kwds)
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135
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136 fmt = NamespaceFormatter({'greeting':'hello'})
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137 self.assertEqual(fmt.format("{greeting}, world!"), 'hello, world!')
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138
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139
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140 # override format_field #########################################
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141 class CallFormatter(string.Formatter):
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142 def format_field(self, value, format_spec):
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143 return format(value(), format_spec)
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144
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145 fmt = CallFormatter()
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146 self.assertEqual(fmt.format('*{0}*', lambda : 'result'), '*result*')
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147
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148
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149 # override convert_field ########################################
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150 class XFormatter(string.Formatter):
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151 def convert_field(self, value, conversion):
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152 if conversion == 'x':
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153 return None
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154 return super(XFormatter, self).convert_field(value, conversion)
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155
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156 fmt = XFormatter()
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157 self.assertEqual(fmt.format("{0!r}:{0!x}", 'foo', 'foo'), "'foo':None")
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158
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159
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160 # override parse ################################################
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161 class BarFormatter(string.Formatter):
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162 # returns an iterable that contains tuples of the form:
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163 # (literal_text, field_name, format_spec, conversion)
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164 def parse(self, format_string):
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165 for field in format_string.split('|'):
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166 if field[0] == '+':
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167 # it's markup
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168 field_name, _, format_spec = field[1:].partition(':')
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169 yield '', field_name, format_spec, None
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170 else:
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171 yield field, None, None, None
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172
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173 fmt = BarFormatter()
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174 self.assertEqual(fmt.format('*|+0:^10s|*', 'foo'), '* foo *')
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175
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176 # test all parameters used
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177 class CheckAllUsedFormatter(string.Formatter):
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178 def check_unused_args(self, used_args, args, kwargs):
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179 # Track which arguments actually got used
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180 unused_args = set(kwargs.keys())
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181 unused_args.update(range(0, len(args)))
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182
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183 for arg in used_args:
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184 unused_args.remove(arg)
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185
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186 if unused_args:
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187 raise ValueError("unused arguments")
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188
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189 fmt = CheckAllUsedFormatter()
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190 self.assertEqual(fmt.format("{0}", 10), "10")
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191 self.assertEqual(fmt.format("{0}{i}", 10, i=100), "10100")
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192 self.assertEqual(fmt.format("{0}{i}{1}", 10, 20, i=100), "1010020")
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193 self.assertRaises(ValueError, fmt.format, "{0}{i}{1}", 10, 20, i=100, j=0)
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194 self.assertRaises(ValueError, fmt.format, "{0}", 10, 20)
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195 self.assertRaises(ValueError, fmt.format, "{0}", 10, 20, i=100)
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196 self.assertRaises(ValueError, fmt.format, "{i}", 10, 20, i=100)
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197
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198 # Alternate formatting is not supported
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199 self.assertRaises(ValueError, format, '', '#')
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200 self.assertRaises(ValueError, format, '', '#20')
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201
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202 class BytesAliasTest(unittest.TestCase):
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203
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204 def test_builtin(self):
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205 self.assertTrue(str is bytes)
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206
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207 def test_syntax(self):
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208 self.assertEqual(b"spam", "spam")
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209 self.assertEqual(br"egg\foo", "egg\\foo")
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210 self.assertTrue(type(b""), str)
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211 self.assertTrue(type(br""), str)
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212
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213 def test_main():
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214 test_support.run_unittest(StringTest, ModuleTest, BytesAliasTest)
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215
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216 if __name__ == "__main__":
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217 test_main()