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first cut at unittest version of re tests
This commit is contained in:
Skip Montanaro
parent
d839ecdc81
commit
8ed06da754
1 changed files with 265 additions and 342 deletions
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@ -1,274 +1,188 @@
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import sys
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sys.path = ['.'] + sys.path
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from test.test_support import verify, verbose, TestFailed
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from test.test_support import verbose, run_suite
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import re
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import sys, os, traceback
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# Misc tests from Tim Peters' re.doc
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if verbose:
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print 'Running tests on re.search and re.match'
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import unittest
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try:
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verify(re.search('x*', 'axx').span(0) == (0, 0))
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verify(re.search('x*', 'axx').span() == (0, 0))
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verify(re.search('x+', 'axx').span(0) == (1, 3))
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verify(re.search('x+', 'axx').span() == (1, 3))
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verify(re.search('x', 'aaa') is None)
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except:
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raise TestFailed, "re.search"
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class ReTests(unittest.TestCase):
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def test_search_star_plus(self):
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self.assertEqual(re.search('x*', 'axx').span(0), (0, 0))
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self.assertEqual(re.search('x*', 'axx').span(), (0, 0))
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self.assertEqual(re.search('x+', 'axx').span(0), (1, 3))
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self.assertEqual(re.search('x+', 'axx').span(), (1, 3))
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self.assertEqual(re.search('x', 'aaa') is None, True)
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self.assertEqual(re.match('a*', 'xxx').span(0), (0, 0))
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self.assertEqual(re.match('a*', 'xxx').span(), (0, 0))
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self.assertEqual(re.match('x*', 'xxxa').span(0), (0, 3))
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self.assertEqual(re.match('x*', 'xxxa').span(), (0, 3))
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self.assertEqual(re.match('a+', 'xxx') is None, True)
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try:
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verify(re.match('a*', 'xxx').span(0) == (0, 0))
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verify(re.match('a*', 'xxx').span() == (0, 0))
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verify(re.match('x*', 'xxxa').span(0) == (0, 3))
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verify(re.match('x*', 'xxxa').span() == (0, 3))
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verify(re.match('a+', 'xxx') is None)
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except:
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raise TestFailed, "re.search"
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if verbose:
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print 'Running tests on re.sub'
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try:
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verify(re.sub("(?i)b+", "x", "bbbb BBBB") == 'x x')
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def bump_num(matchobj):
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def bump_num(self, matchobj):
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int_value = int(matchobj.group(0))
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return str(int_value + 1)
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verify(re.sub(r'\d+', bump_num, '08.2 -2 23x99y') == '9.3 -3 24x100y')
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verify(re.sub(r'\d+', bump_num, '08.2 -2 23x99y', 3) == '9.3 -3 23x99y')
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def test_basic_re_sub(self):
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self.assertEqual(re.sub("(?i)b+", "x", "bbbb BBBB"), 'x x')
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self.assertEqual(re.sub(r'\d+', self.bump_num, '08.2 -2 23x99y'),
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'9.3 -3 24x100y')
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self.assertEqual(re.sub(r'\d+', self.bump_num, '08.2 -2 23x99y', 3),
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'9.3 -3 23x99y')
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verify(re.sub('.', lambda m: r"\n", 'x') == '\\n')
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verify(re.sub('.', r"\n", 'x') == '\n')
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self.assertEqual(re.sub('.', lambda m: r"\n", 'x'), '\\n')
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self.assertEqual(re.sub('.', r"\n", 'x'), '\n')
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s = r"\1\1"
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verify(re.sub('(.)', s, 'x') == 'xx')
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verify(re.sub('(.)', re.escape(s), 'x') == s)
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verify(re.sub('(.)', lambda m: s, 'x') == s)
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self.assertEqual(re.sub('(.)', s, 'x'), 'xx')
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self.assertEqual(re.sub('(.)', re.escape(s), 'x'), s)
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self.assertEqual(re.sub('(.)', lambda m: s, 'x'), s)
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verify(re.sub('(?P<a>x)', '\g<a>\g<a>', 'xx') == 'xxxx')
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verify(re.sub('(?P<a>x)', '\g<a>\g<1>', 'xx') == 'xxxx')
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verify(re.sub('(?P<unk>x)', '\g<unk>\g<unk>', 'xx') == 'xxxx')
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verify(re.sub('(?P<unk>x)', '\g<1>\g<1>', 'xx') == 'xxxx')
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self.assertEqual(re.sub('(?P<a>x)', '\g<a>\g<a>', 'xx'), 'xxxx')
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self.assertEqual(re.sub('(?P<a>x)', '\g<a>\g<1>', 'xx'), 'xxxx')
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self.assertEqual(re.sub('(?P<unk>x)', '\g<unk>\g<unk>', 'xx'), 'xxxx')
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self.assertEqual(re.sub('(?P<unk>x)', '\g<1>\g<1>', 'xx'), 'xxxx')
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verify(re.sub('a', r'\t\n\v\r\f\a\b\B\Z\a\A\w\W\s\S\d\D', 'a') == '\t\n\v\r\f\a\b\\B\\Z\a\\A\\w\\W\\s\\S\\d\\D')
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verify(re.sub('a', '\t\n\v\r\f\a', 'a') == '\t\n\v\r\f\a')
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verify(re.sub('a', '\t\n\v\r\f\a', 'a') == (chr(9)+chr(10)+chr(11)+chr(13)+chr(12)+chr(7)))
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self.assertEqual(re.sub('a',r'\t\n\v\r\f\a\b\B\Z\a\A\w\W\s\S\d\D','a'),
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'\t\n\v\r\f\a\b\\B\\Z\a\\A\\w\\W\\s\\S\\d\\D')
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self.assertEqual(re.sub('a', '\t\n\v\r\f\a', 'a'), '\t\n\v\r\f\a')
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self.assertEqual(re.sub('a', '\t\n\v\r\f\a', 'a'),
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(chr(9)+chr(10)+chr(11)+chr(13)+chr(12)+chr(7)))
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verify(re.sub('^\s*', 'X', 'test') == 'Xtest')
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self.assertEqual(re.sub('^\s*', 'X', 'test'), 'Xtest')
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def test_escaped_re_sub(self):
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# Test for sub() on escaped characters, see SF bug #449000
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verify(re.sub(r'\r\n', r'\n', 'abc\r\ndef\r\n') == 'abc\ndef\n')
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verify(re.sub('\r\n', r'\n', 'abc\r\ndef\r\n') == 'abc\ndef\n')
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verify(re.sub(r'\r\n', '\n', 'abc\r\ndef\r\n') == 'abc\ndef\n')
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verify(re.sub('\r\n', '\n', 'abc\r\ndef\r\n') == 'abc\ndef\n')
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except AssertionError:
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raise TestFailed, "re.sub"
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self.assertEqual(re.sub(r'\r\n', r'\n', 'abc\r\ndef\r\n'),
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'abc\ndef\n')
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self.assertEqual(re.sub('\r\n', r'\n', 'abc\r\ndef\r\n'),
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'abc\ndef\n')
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self.assertEqual(re.sub(r'\r\n', '\n', 'abc\r\ndef\r\n'),
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'abc\ndef\n')
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self.assertEqual(re.sub('\r\n', '\n', 'abc\r\ndef\r\n'),
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'abc\ndef\n')
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def test_qualified_re_sub(self):
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self.assertEqual(re.sub('a', 'b', 'aaaaa'), 'bbbbb')
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self.assertEqual(re.sub('a', 'b', 'aaaaa', 1), 'baaaa')
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try:
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verify(re.sub('a', 'b', 'aaaaa') == 'bbbbb')
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verify(re.sub('a', 'b', 'aaaaa', 1) == 'baaaa')
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except AssertionError:
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raise TestFailed, "qualified re.sub"
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def test_symbolic_refs(self):
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self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<a', 'xx')
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self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<', 'xx')
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self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g', 'xx')
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self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<a a>', 'xx')
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self.assertRaises(re.error, re.sub, '(?P<a>x)', '\g<1a1>', 'xx')
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self.assertRaises(IndexError, re.sub, '(?P<a>x)', '\g<ab>', 'xx')
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self.assertRaises(re.error, re.sub, '(?P<a>x)|(?P<b>y)', '\g<b>', 'xx')
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self.assertRaises(re.error, re.sub, '(?P<a>x)|(?P<b>y)', '\\2', 'xx')
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if verbose:
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print 'Running tests on symbolic references'
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def test_re_subn(self):
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self.assertEqual(re.subn("(?i)b+", "x", "bbbb BBBB"), ('x x', 2))
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self.assertEqual(re.subn("b+", "x", "bbbb BBBB"), ('x BBBB', 1))
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self.assertEqual(re.subn("b+", "x", "xyz"), ('xyz', 0))
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self.assertEqual(re.subn("b*", "x", "xyz"), ('xxxyxzx', 4))
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self.assertEqual(re.subn("b*", "x", "xyz", 2), ('xxxyz', 2))
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try:
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re.sub('(?P<a>x)', '\g<a', 'xx')
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except re.error, reason:
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pass
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else:
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raise TestFailed, "symbolic reference"
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def test_re_split(self):
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self.assertEqual(re.split(":", ":a:b::c"), ['', 'a', 'b', '', 'c'])
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self.assertEqual(re.split(":*", ":a:b::c"), ['', 'a', 'b', 'c'])
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self.assertEqual(re.split("(:*)", ":a:b::c"),
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['', ':', 'a', ':', 'b', '::', 'c'])
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self.assertEqual(re.split("(?::*)", ":a:b::c"), ['', 'a', 'b', 'c'])
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self.assertEqual(re.split("(:)*", ":a:b::c"),
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['', ':', 'a', ':', 'b', ':', 'c'])
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self.assertEqual(re.split("([b:]+)", ":a:b::c"),
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['', ':', 'a', ':b::', 'c'])
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self.assertEqual(re.split("(b)|(:+)", ":a:b::c"),
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['', None, ':', 'a', None, ':', '', 'b', None, '',
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None, '::', 'c'])
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self.assertEqual(re.split("(?:b)|(?::+)", ":a:b::c"),
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['', 'a', '', '', 'c'])
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try:
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re.sub('(?P<a>x)', '\g<', 'xx')
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except re.error, reason:
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pass
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else:
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raise TestFailed, "symbolic reference"
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def test_qualified_re_split(self):
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self.assertEqual(re.split(":", ":a:b::c", 2), ['', 'a', 'b::c'])
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self.assertEqual(re.split(':', 'a:b:c:d', 2), ['a', 'b', 'c:d'])
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self.assertEqual(re.split("(:)", ":a:b::c", 2),
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['', ':', 'a', ':', 'b::c'])
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self.assertEqual(re.split("(:*)", ":a:b::c", 2),
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['', ':', 'a', ':', 'b::c'])
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try:
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re.sub('(?P<a>x)', '\g', 'xx')
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except re.error, reason:
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pass
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else:
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raise TestFailed, "symbolic reference"
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try:
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re.sub('(?P<a>x)', '\g<a a>', 'xx')
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except re.error, reason:
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pass
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else:
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raise TestFailed, "symbolic reference"
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try:
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re.sub('(?P<a>x)', '\g<1a1>', 'xx')
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except re.error, reason:
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pass
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else:
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raise TestFailed, "symbolic reference"
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try:
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re.sub('(?P<a>x)', '\g<ab>', 'xx')
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except IndexError, reason:
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pass
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else:
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raise TestFailed, "symbolic reference"
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try:
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re.sub('(?P<a>x)|(?P<b>y)', '\g<b>', 'xx')
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except re.error, reason:
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pass
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else:
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raise TestFailed, "symbolic reference"
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try:
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re.sub('(?P<a>x)|(?P<b>y)', '\\2', 'xx')
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except re.error, reason:
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pass
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else:
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raise TestFailed, "symbolic reference"
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if verbose:
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print 'Running tests on re.subn'
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try:
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verify(re.subn("(?i)b+", "x", "bbbb BBBB") == ('x x', 2))
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verify(re.subn("b+", "x", "bbbb BBBB") == ('x BBBB', 1))
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verify(re.subn("b+", "x", "xyz") == ('xyz', 0))
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verify(re.subn("b*", "x", "xyz") == ('xxxyxzx', 4))
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verify(re.subn("b*", "x", "xyz", 2) == ('xxxyz', 2))
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except AssertionError:
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raise TestFailed, "re.subn"
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if verbose:
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print 'Running tests on re.split'
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try:
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verify(re.split(":", ":a:b::c") == ['', 'a', 'b', '', 'c'])
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verify(re.split(":*", ":a:b::c") == ['', 'a', 'b', 'c'])
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verify(re.split("(:*)", ":a:b::c") == ['', ':', 'a', ':', 'b', '::', 'c'])
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verify(re.split("(?::*)", ":a:b::c") == ['', 'a', 'b', 'c'])
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verify(re.split("(:)*", ":a:b::c") == ['', ':', 'a', ':', 'b', ':', 'c'])
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verify(re.split("([b:]+)", ":a:b::c") == ['', ':', 'a', ':b::', 'c'])
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verify(re.split("(b)|(:+)", ":a:b::c") == \
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['', None, ':', 'a', None, ':', '', 'b', None, '', None, '::', 'c'] )
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verify(re.split("(?:b)|(?::+)", ":a:b::c") == ['', 'a', '', '', 'c'])
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except AssertionError:
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raise TestFailed, "re.split"
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try:
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verify(re.split(":", ":a:b::c", 2) == ['', 'a', 'b::c'])
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verify(re.split(':', 'a:b:c:d', 2) == ['a', 'b', 'c:d'])
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verify(re.split("(:)", ":a:b::c", 2) == ['', ':', 'a', ':', 'b::c'])
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verify(re.split("(:*)", ":a:b::c", 2) == ['', ':', 'a', ':', 'b::c'])
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except AssertionError:
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raise TestFailed, "qualified re.split"
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if verbose:
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print "Running tests on re.findall"
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try:
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verify(re.findall(":+", "abc") == [])
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verify(re.findall(":+", "a:b::c:::d") == [":", "::", ":::"])
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verify(re.findall("(:+)", "a:b::c:::d") == [":", "::", ":::"])
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verify(re.findall("(:)(:*)", "a:b::c:::d") == [(":", ""),
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def test_re_findall(self):
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self.assertEqual(re.findall(":+", "abc"), [])
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self.assertEqual(re.findall(":+", "a:b::c:::d"), [":", "::", ":::"])
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self.assertEqual(re.findall("(:+)", "a:b::c:::d"), [":", "::", ":::"])
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self.assertEqual(re.findall("(:)(:*)", "a:b::c:::d"), [(":", ""),
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(":", ":"),
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(":", "::")])
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except AssertionError:
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raise TestFailed, "re.findall"
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if verbose:
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print "Running tests on re.match"
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try:
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def test_re_match(self):
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# No groups at all
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m = re.match('a', 'a') ; verify(m.groups() == ())
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# A single group
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m = re.match('(a)', 'a') ; verify(m.groups() == ('a',))
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pat = re.compile('((a)|(b))(c)?')
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verify(pat.match('a').groups() == ('a', 'a', None, None))
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verify(pat.match('b').groups() == ('b', None, 'b', None))
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verify(pat.match('ac').groups() == ('a', 'a', None, 'c'))
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verify(pat.match('bc').groups() == ('b', None, 'b', 'c'))
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verify(pat.match('bc').groups("") == ('b', "", 'b', 'c'))
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except AssertionError:
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raise TestFailed, "match .groups() method"
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try:
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m = re.match('a', 'a')
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self.assertEqual(m.groups(), ())
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# A single group
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m = re.match('(a)', 'a')
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verify(m.group(0) == 'a')
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verify(m.group(0) == 'a')
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verify(m.group(1) == 'a')
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verify(m.group(1, 1) == ('a', 'a'))
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self.assertEqual(m.groups(), ('a',))
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pat = re.compile('((a)|(b))(c)?')
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self.assertEqual(pat.match('a').groups(), ('a', 'a', None, None))
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self.assertEqual(pat.match('b').groups(), ('b', None, 'b', None))
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self.assertEqual(pat.match('ac').groups(), ('a', 'a', None, 'c'))
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self.assertEqual(pat.match('bc').groups(), ('b', None, 'b', 'c'))
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self.assertEqual(pat.match('bc').groups(""), ('b', "", 'b', 'c'))
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# A single group
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m = re.match('(a)', 'a')
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self.assertEqual(m.group(0), 'a')
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self.assertEqual(m.group(0), 'a')
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self.assertEqual(m.group(1), 'a')
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self.assertEqual(m.group(1, 1), ('a', 'a'))
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pat = re.compile('(?:(?P<a1>a)|(?P<b2>b))(?P<c3>c)?')
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verify(pat.match('a').group(1, 2, 3) == ('a', None, None))
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verify(pat.match('b').group('a1', 'b2', 'c3') == (None, 'b', None))
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verify(pat.match('ac').group(1, 'b2', 3) == ('a', None, 'c'))
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except AssertionError:
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raise TestFailed, "match .group() method"
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self.assertEqual(pat.match('a').group(1, 2, 3), ('a', None, None))
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self.assertEqual(pat.match('b').group('a1', 'b2', 'c3'),
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(None, 'b', None))
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self.assertEqual(pat.match('ac').group(1, 'b2', 3), ('a', None, 'c'))
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if verbose:
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print "Running tests on re.escape"
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try:
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def test_re_escape(self):
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p=""
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for i in range(0, 256):
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p = p + chr(i)
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verify(re.match(re.escape(chr(i)), chr(i)) is not None)
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verify(re.match(re.escape(chr(i)), chr(i)).span() == (0,1))
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self.assertEqual(re.match(re.escape(chr(i)), chr(i)) is not None,
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True)
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self.assertEqual(re.match(re.escape(chr(i)), chr(i)).span(), (0,1))
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pat=re.compile( re.escape(p) )
|
||||
verify(pat.match(p) is not None)
|
||||
verify(pat.match(p).span() == (0,256))
|
||||
except AssertionError:
|
||||
raise TestFailed, "re.escape"
|
||||
|
||||
|
||||
if verbose:
|
||||
print 'Pickling a RegexObject instance'
|
||||
self.assertEqual(pat.match(p) is not None, True)
|
||||
self.assertEqual(pat.match(p).span(), (0,256))
|
||||
|
||||
def test_pickling(self):
|
||||
import pickle
|
||||
pat = re.compile('a(?:b|(c|e){1,2}?|d)+?(.)')
|
||||
s = pickle.dumps(pat)
|
||||
pat = pickle.loads(s)
|
||||
oldpat = re.compile('a(?:b|(c|e){1,2}?|d)+?(.)')
|
||||
s = pickle.dumps(oldpat)
|
||||
newpat = pickle.loads(s)
|
||||
self.assertEqual(oldpat, newpat)
|
||||
|
||||
try:
|
||||
verify(re.I == re.IGNORECASE)
|
||||
verify(re.L == re.LOCALE)
|
||||
verify(re.M == re.MULTILINE)
|
||||
verify(re.S == re.DOTALL)
|
||||
verify(re.X == re.VERBOSE)
|
||||
except AssertionError:
|
||||
raise TestFailed, 're module constants'
|
||||
def test_constants(self):
|
||||
self.assertEqual(re.I, re.IGNORECASE)
|
||||
self.assertEqual(re.L, re.LOCALE)
|
||||
self.assertEqual(re.M, re.MULTILINE)
|
||||
self.assertEqual(re.S, re.DOTALL)
|
||||
self.assertEqual(re.X, re.VERBOSE)
|
||||
|
||||
def test_flags(self):
|
||||
for flags in [re.I, re.M, re.X, re.S, re.L]:
|
||||
try:
|
||||
r = re.compile('^pattern$', flags)
|
||||
except:
|
||||
print 'Exception raised on flag', flags
|
||||
|
||||
if verbose:
|
||||
print 'Test engine limitations'
|
||||
|
||||
def test_limitations(self):
|
||||
# Try nasty case that overflows the straightforward recursive
|
||||
# implementation of repeated groups.
|
||||
try:
|
||||
verify(re.match('(x)*', 50000*'x').span() == (0, 50000))
|
||||
except RuntimeError, v:
|
||||
print v
|
||||
|
||||
from test.re_tests import *
|
||||
self.assertEqual(re.match('(x)*', 50000*'x').span(), (0, 50000))
|
||||
|
||||
def run_re_tests():
|
||||
from test.re_tests import benchmarks, tests, SUCCEED, FAIL, SYNTAX_ERROR
|
||||
if verbose:
|
||||
print 'Running re_tests test suite'
|
||||
else:
|
||||
|
|
@ -390,3 +304,12 @@ for t in tests:
|
|||
result = obj.search(s)
|
||||
if result is None:
|
||||
print '=== Fails on unicode-sensitive match', t
|
||||
|
||||
def test_main():
|
||||
run_re_tests()
|
||||
suite = unittest.TestSuite()
|
||||
suite.addTest(unittest.makeSuite(ReTests))
|
||||
run_suite(suite)
|
||||
|
||||
if __name__ == "__main__":
|
||||
test_main()
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue