source: python/trunk/Lib/test/test_string.py

Last change on this file was 391, checked in by dmik, 11 years ago

python: Merge vendor 2.7.6 to trunk.
  • Property svn:eol-style set to native
File size: 8.9 KB
Line 
1import unittest, string
2from test import test_support, string_tests
3from UserList import UserList
4
5class StringTest(
6 string_tests.CommonTest,
7 string_tests.MixinStrStringUserStringTest
8 ):
9
10 type2test = str
11
12 def checkequal(self, result, object, methodname, *args):
13 realresult = getattr(string, methodname)(object, *args)
14 self.assertEqual(
15 result,
16 realresult
17 )
18
19 def checkraises(self, exc, object, methodname, *args):
20 self.assertRaises(
21 exc,
22 getattr(string, methodname),
23 object,
24 *args
25 )
26
27 def checkcall(self, object, methodname, *args):
28 getattr(string, methodname)(object, *args)
29
30 def test_join(self):
31 # These are the same checks as in string_test.ObjectTest.test_join
32 # but the argument order ist different
33 self.checkequal('a b c d', ['a', 'b', 'c', 'd'], 'join', ' ')
34 self.checkequal('abcd', ('a', 'b', 'c', 'd'), 'join', '')
35 self.checkequal('w x y z', string_tests.Sequence(), 'join', ' ')
36 self.checkequal('abc', ('abc',), 'join', 'a')
37 self.checkequal('z', UserList(['z']), 'join', 'a')
38 if test_support.have_unicode:
39 self.checkequal(unicode('a.b.c'), ['a', 'b', 'c'], 'join', unicode('.'))
40 self.checkequal(unicode('a.b.c'), [unicode('a'), 'b', 'c'], 'join', '.')
41 self.checkequal(unicode('a.b.c'), ['a', unicode('b'), 'c'], 'join', '.')
42 self.checkequal(unicode('a.b.c'), ['a', 'b', unicode('c')], 'join', '.')
43 self.checkraises(TypeError, ['a', unicode('b'), 3], 'join', '.')
44 for i in [5, 25, 125]:
45 self.checkequal(
46 ((('a' * i) + '-') * i)[:-1],
47 ['a' * i] * i, 'join', '-')
48 self.checkequal(
49 ((('a' * i) + '-') * i)[:-1],
50 ('a' * i,) * i, 'join', '-')
51
52 self.checkraises(TypeError, string_tests.BadSeq1(), 'join', ' ')
53 self.checkequal('a b c', string_tests.BadSeq2(), 'join', ' ')
54 try:
55 def f():
56 yield 4 + ""
57 self.fixtype(' ').join(f())
58 except TypeError, e:
59 if '+' not in str(e):
60 self.fail('join() ate exception message')
61 else:
62 self.fail('exception not raised')
63
64
65
66
67class ModuleTest(unittest.TestCase):
68
69 def test_attrs(self):
70 string.whitespace
71 string.lowercase
72 string.uppercase
73 string.letters
74 string.digits
75 string.hexdigits
76 string.octdigits
77 string.punctuation
78 string.printable
79
80 def test_atoi(self):
81 self.assertEqual(string.atoi(" 1 "), 1)
82 self.assertRaises(ValueError, string.atoi, " 1x")
83 self.assertRaises(ValueError, string.atoi, " x1 ")
84
85 def test_atol(self):
86 self.assertEqual(string.atol(" 1 "), 1L)
87 self.assertRaises(ValueError, string.atol, " 1x ")
88 self.assertRaises(ValueError, string.atol, " x1 ")
89
90 def test_atof(self):
91 self.assertAlmostEqual(string.atof(" 1 "), 1.0)
92 self.assertRaises(ValueError, string.atof, " 1x ")
93 self.assertRaises(ValueError, string.atof, " x1 ")
94
95 def test_maketrans(self):
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'
97
98 self.assertEqual(string.maketrans('abc', 'xyz'), transtable)
99 self.assertRaises(ValueError, string.maketrans, 'abc', 'xyzq')
100
101 def test_capwords(self):
102 self.assertEqual(string.capwords('abc def ghi'), 'Abc Def Ghi')
103 self.assertEqual(string.capwords('abc\tdef\nghi'), 'Abc Def Ghi')
104 self.assertEqual(string.capwords('abc\t def \nghi'), 'Abc Def Ghi')
105 self.assertEqual(string.capwords('ABC DEF GHI'), 'Abc Def Ghi')
106 self.assertEqual(string.capwords('ABC-DEF-GHI', '-'), 'Abc-Def-Ghi')
107 self.assertEqual(string.capwords('ABC-def DEF-ghi GHI'), 'Abc-def Def-ghi Ghi')
108 self.assertEqual(string.capwords(' aBc DeF '), 'Abc Def')
109 self.assertEqual(string.capwords('\taBc\tDeF\t'), 'Abc Def')
110 self.assertEqual(string.capwords('\taBc\tDeF\t', '\t'), '\tAbc\tDef\t')
111
112 def test_formatter(self):
113 fmt = string.Formatter()
114 self.assertEqual(fmt.format("foo"), "foo")
115
116 self.assertEqual(fmt.format("foo{0}", "bar"), "foobar")
117 self.assertEqual(fmt.format("foo{1}{0}-{1}", "bar", 6), "foo6bar-6")
118 self.assertEqual(fmt.format("-{arg!r}-", arg='test'), "-'test'-")
119
120 # override get_value ############################################
121 class NamespaceFormatter(string.Formatter):
122 def __init__(self, namespace={}):
123 string.Formatter.__init__(self)
124 self.namespace = namespace
125
126 def get_value(self, key, args, kwds):
127 if isinstance(key, str):
128 try:
129 # Check explicitly passed arguments first
130 return kwds[key]
131 except KeyError:
132 return self.namespace[key]
133 else:
134 string.Formatter.get_value(key, args, kwds)
135
136 fmt = NamespaceFormatter({'greeting':'hello'})
137 self.assertEqual(fmt.format("{greeting}, world!"), 'hello, world!')
138
139
140 # override format_field #########################################
141 class CallFormatter(string.Formatter):
142 def format_field(self, value, format_spec):
143 return format(value(), format_spec)
144
145 fmt = CallFormatter()
146 self.assertEqual(fmt.format('*{0}*', lambda : 'result'), '*result*')
147
148
149 # override convert_field ########################################
150 class XFormatter(string.Formatter):
151 def convert_field(self, value, conversion):
152 if conversion == 'x':
153 return None
154 return super(XFormatter, self).convert_field(value, conversion)
155
156 fmt = XFormatter()
157 self.assertEqual(fmt.format("{0!r}:{0!x}", 'foo', 'foo'), "'foo':None")
158
159
160 # override parse ################################################
161 class BarFormatter(string.Formatter):
162 # returns an iterable that contains tuples of the form:
163 # (literal_text, field_name, format_spec, conversion)
164 def parse(self, format_string):
165 for field in format_string.split('|'):
166 if field[0] == '+':
167 # it's markup
168 field_name, _, format_spec = field[1:].partition(':')
169 yield '', field_name, format_spec, None
170 else:
171 yield field, None, None, None
172
173 fmt = BarFormatter()
174 self.assertEqual(fmt.format('*|+0:^10s|*', 'foo'), '* foo *')
175
176 # test all parameters used
177 class CheckAllUsedFormatter(string.Formatter):
178 def check_unused_args(self, used_args, args, kwargs):
179 # Track which arguments actually got used
180 unused_args = set(kwargs.keys())
181 unused_args.update(range(0, len(args)))
182
183 for arg in used_args:
184 unused_args.remove(arg)
185
186 if unused_args:
187 raise ValueError("unused arguments")
188
189 fmt = CheckAllUsedFormatter()
190 self.assertEqual(fmt.format("{0}", 10), "10")
191 self.assertEqual(fmt.format("{0}{i}", 10, i=100), "10100")
192 self.assertEqual(fmt.format("{0}{i}{1}", 10, 20, i=100), "1010020")
193 self.assertRaises(ValueError, fmt.format, "{0}{i}{1}", 10, 20, i=100, j=0)
194 self.assertRaises(ValueError, fmt.format, "{0}", 10, 20)
195 self.assertRaises(ValueError, fmt.format, "{0}", 10, 20, i=100)
196 self.assertRaises(ValueError, fmt.format, "{i}", 10, 20, i=100)
197
198 # Alternate formatting is not supported
199 self.assertRaises(ValueError, format, '', '#')
200 self.assertRaises(ValueError, format, '', '#20')
201
202class BytesAliasTest(unittest.TestCase):
203
204 def test_builtin(self):
205 self.assertTrue(str is bytes)
206
207 def test_syntax(self):
208 self.assertEqual(b"spam", "spam")
209 self.assertEqual(br"egg\foo", "egg\\foo")
210 self.assertTrue(type(b""), str)
211 self.assertTrue(type(br""), str)
212
213def test_main():
214 test_support.run_unittest(StringTest, ModuleTest, BytesAliasTest)
215
216if __name__ == "__main__":
217 test_main()
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