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- import sys
- sys.path = ['.'] + sys.path
-
- from test_support import verbose, TestFailed
- import re
- import sys, os, string, traceback
-
- # Misc tests from Tim Peters' re.doc
-
- if verbose:
- print 'Running tests on re.search and re.match'
-
- try:
- assert re.search('x*', 'axx').span(0) == (0, 0)
- assert re.search('x*', 'axx').span() == (0, 0)
- assert re.search('x+', 'axx').span(0) == (1, 3)
- assert re.search('x+', 'axx').span() == (1, 3)
- assert re.search('x', 'aaa') == None
- except:
- raise TestFailed, "re.search"
-
- try:
- assert re.match('a*', 'xxx').span(0) == (0, 0)
- assert re.match('a*', 'xxx').span() == (0, 0)
- assert re.match('x*', 'xxxa').span(0) == (0, 3)
- assert re.match('x*', 'xxxa').span() == (0, 3)
- assert re.match('a+', 'xxx') == None
- except:
- raise TestFailed, "re.search"
-
- if verbose:
- print 'Running tests on re.sub'
-
- try:
- assert re.sub("(?i)b+", "x", "bbbb BBBB") == 'x x'
-
- def bump_num(matchobj):
- int_value = int(matchobj.group(0))
- return str(int_value + 1)
-
- assert re.sub(r'\d+', bump_num, '08.2 -2 23x99y') == '9.3 -3 24x100y'
- assert re.sub(r'\d+', bump_num, '08.2 -2 23x99y', 3) == '9.3 -3 23x99y'
-
- assert re.sub('.', lambda m: r"\n", 'x') == '\\n'
- assert re.sub('.', r"\n", 'x') == '\n'
-
- s = r"\1\1"
- assert re.sub('(.)', s, 'x') == 'xx'
- assert re.sub('(.)', re.escape(s), 'x') == s
- assert re.sub('(.)', lambda m: s, 'x') == s
-
- assert re.sub('(?P<a>x)', '\g<a>\g<a>', 'xx') == 'xxxx'
- assert re.sub('(?P<a>x)', '\g<a>\g<1>', 'xx') == 'xxxx'
- assert re.sub('(?P<unk>x)', '\g<unk>\g<unk>', 'xx') == 'xxxx'
- assert re.sub('(?P<unk>x)', '\g<1>\g<1>', 'xx') == 'xxxx'
-
- assert 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'
- assert re.sub('a', '\t\n\v\r\f\a', 'a') == '\t\n\v\r\f\a'
- assert re.sub('a', '\t\n\v\r\f\a', 'a') == (chr(9)+chr(10)+chr(11)+chr(13)+chr(12)+chr(7))
-
- assert re.sub('^\s*', 'X', 'test') == 'Xtest'
- except AssertionError:
- raise TestFailed, "re.sub"
-
-
- try:
- assert re.sub('a', 'b', 'aaaaa') == 'bbbbb'
- assert re.sub('a', 'b', 'aaaaa', 1) == 'baaaa'
- except AssertionError:
- raise TestFailed, "qualified re.sub"
-
- if verbose:
- print 'Running tests on symbolic references'
-
- try:
- re.sub('(?P<a>x)', '\g<a', 'xx')
- except re.error, reason:
- pass
- else:
- raise TestFailed, "symbolic reference"
-
- try:
- re.sub('(?P<a>x)', '\g<', 'xx')
- except re.error, reason:
- pass
- else:
- raise TestFailed, "symbolic reference"
-
- try:
- re.sub('(?P<a>x)', '\g', 'xx')
- except re.error, reason:
- pass
- else:
- raise TestFailed, "symbolic reference"
-
- try:
- re.sub('(?P<a>x)', '\g<a a>', 'xx')
- except re.error, reason:
- pass
- else:
- raise TestFailed, "symbolic reference"
-
- try:
- re.sub('(?P<a>x)', '\g<1a1>', 'xx')
- except re.error, reason:
- pass
- else:
- raise TestFailed, "symbolic reference"
-
- try:
- re.sub('(?P<a>x)', '\g<ab>', 'xx')
- except IndexError, reason:
- pass
- else:
- raise TestFailed, "symbolic reference"
-
- try:
- re.sub('(?P<a>x)|(?P<b>y)', '\g<b>', 'xx')
- except re.error, reason:
- pass
- else:
- raise TestFailed, "symbolic reference"
-
- try:
- re.sub('(?P<a>x)|(?P<b>y)', '\\2', 'xx')
- except re.error, reason:
- pass
- else:
- raise TestFailed, "symbolic reference"
-
- if verbose:
- print 'Running tests on re.subn'
-
- try:
- assert re.subn("(?i)b+", "x", "bbbb BBBB") == ('x x', 2)
- assert re.subn("b+", "x", "bbbb BBBB") == ('x BBBB', 1)
- assert re.subn("b+", "x", "xyz") == ('xyz', 0)
- assert re.subn("b*", "x", "xyz") == ('xxxyxzx', 4)
- assert re.subn("b*", "x", "xyz", 2) == ('xxxyz', 2)
- except AssertionError:
- raise TestFailed, "re.subn"
-
- if verbose:
- print 'Running tests on re.split'
-
- try:
- assert re.split(":", ":a:b::c") == ['', 'a', 'b', '', 'c']
- assert re.split(":*", ":a:b::c") == ['', 'a', 'b', 'c']
- assert re.split("(:*)", ":a:b::c") == ['', ':', 'a', ':', 'b', '::', 'c']
- assert re.split("(?::*)", ":a:b::c") == ['', 'a', 'b', 'c']
- assert re.split("(:)*", ":a:b::c") == ['', ':', 'a', ':', 'b', ':', 'c']
- assert re.split("([b:]+)", ":a:b::c") == ['', ':', 'a', ':b::', 'c']
- assert re.split("(b)|(:+)", ":a:b::c") == \
- ['', None, ':', 'a', None, ':', '', 'b', None, '', None, '::', 'c']
- assert re.split("(?:b)|(?::+)", ":a:b::c") == ['', 'a', '', '', 'c']
- except AssertionError:
- raise TestFailed, "re.split"
-
- try:
- assert re.split(":", ":a:b::c", 2) == ['', 'a', 'b::c']
- assert re.split(':', 'a:b:c:d', 2) == ['a', 'b', 'c:d']
-
- assert re.split("(:)", ":a:b::c", 2) == ['', ':', 'a', ':', 'b::c']
- assert re.split("(:*)", ":a:b::c", 2) == ['', ':', 'a', ':', 'b::c']
- except AssertionError:
- raise TestFailed, "qualified re.split"
-
- if verbose:
- print "Running tests on re.findall"
-
- try:
- assert re.findall(":+", "abc") == []
- assert re.findall(":+", "a:b::c:::d") == [":", "::", ":::"]
- assert re.findall("(:+)", "a:b::c:::d") == [":", "::", ":::"]
- assert re.findall("(:)(:*)", "a:b::c:::d") == [(":", ""),
- (":", ":"),
- (":", "::")]
- except AssertionError:
- raise TestFailed, "re.findall"
-
- if verbose:
- print "Running tests on re.match"
-
- try:
- # No groups at all
- m = re.match('a', 'a') ; assert m.groups() == ()
- # A single group
- m = re.match('(a)', 'a') ; assert m.groups() == ('a',)
-
- pat = re.compile('((a)|(b))(c)?')
- assert pat.match('a').groups() == ('a', 'a', None, None)
- assert pat.match('b').groups() == ('b', None, 'b', None)
- assert pat.match('ac').groups() == ('a', 'a', None, 'c')
- assert pat.match('bc').groups() == ('b', None, 'b', 'c')
- assert pat.match('bc').groups("") == ('b', "", 'b', 'c')
- except AssertionError:
- raise TestFailed, "match .groups() method"
-
- try:
- # A single group
- m = re.match('(a)', 'a')
- assert m.group(0) == 'a' ; assert m.group(0) == 'a'
- assert m.group(1) == 'a' ; assert m.group(1, 1) == ('a', 'a')
-
- pat = re.compile('(?:(?P<a1>a)|(?P<b2>b))(?P<c3>c)?')
- assert pat.match('a').group(1, 2, 3) == ('a', None, None)
- assert pat.match('b').group('a1', 'b2', 'c3') == (None, 'b', None)
- assert pat.match('ac').group(1, 'b2', 3) == ('a', None, 'c')
- except AssertionError:
- raise TestFailed, "match .group() method"
-
- if verbose:
- print "Running tests on re.escape"
-
- try:
- p=""
- for i in range(0, 256):
- p = p + chr(i)
- assert re.match(re.escape(chr(i)), chr(i)) != None
- assert re.match(re.escape(chr(i)), chr(i)).span() == (0,1)
-
- pat=re.compile( re.escape(p) )
- assert pat.match(p) != None
- assert pat.match(p).span() == (0,256)
- except AssertionError:
- raise TestFailed, "re.escape"
-
-
- if verbose:
- print 'Pickling a RegexObject instance'
-
- import pickle
- pat = re.compile('a(?:b|(c|e){1,2}?|d)+?(.)')
- s = pickle.dumps(pat)
- pat = pickle.loads(s)
-
- try:
- assert re.I == re.IGNORECASE
- assert re.L == re.LOCALE
- assert re.M == re.MULTILINE
- assert re.S == re.DOTALL
- assert re.X == re.VERBOSE
- except AssertionError:
- raise TestFailed, 're module constants'
-
- 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'
-
- # Try nasty case that overflows the straightforward recursive
- # implementation of repeated groups.
- try:
- assert re.match('(x)*', 50000*'x').span() == (0, 50000)
- except RuntimeError, v:
- print v
-
- from re_tests import *
-
- if verbose:
- print 'Running re_tests test suite'
- else:
- # To save time, only run the first and last 10 tests
- #tests = tests[:10] + tests[-10:]
- pass
-
- for t in tests:
- sys.stdout.flush()
- pattern = s = outcome = repl = expected = None
- if len(t) == 5:
- pattern, s, outcome, repl, expected = t
- elif len(t) == 3:
- pattern, s, outcome = t
- else:
- raise ValueError, ('Test tuples should have 3 or 5 fields', t)
-
- try:
- obj = re.compile(pattern)
- except re.error:
- if outcome == SYNTAX_ERROR: pass # Expected a syntax error
- else:
- print '=== Syntax error:', t
- except KeyboardInterrupt: raise KeyboardInterrupt
- except:
- print '*** Unexpected error ***', t
- if verbose:
- traceback.print_exc(file=sys.stdout)
- else:
- try:
- result = obj.search(s)
- except re.error, msg:
- print '=== Unexpected exception', t, repr(msg)
- if outcome == SYNTAX_ERROR:
- # This should have been a syntax error; forget it.
- pass
- elif outcome == FAIL:
- if result is None: pass # No match, as expected
- else: print '=== Succeeded incorrectly', t
- elif outcome == SUCCEED:
- if result is not None:
- # Matched, as expected, so now we compute the
- # result string and compare it to our expected result.
- start, end = result.span(0)
- vardict={'found': result.group(0),
- 'groups': result.group(),
- 'flags': result.re.flags}
- for i in range(1, 100):
- try:
- gi = result.group(i)
- # Special hack because else the string concat fails:
- if gi is None:
- gi = "None"
- except IndexError:
- gi = "Error"
- vardict['g%d' % i] = gi
- for i in result.re.groupindex.keys():
- try:
- gi = result.group(i)
- if gi is None:
- gi = "None"
- except IndexError:
- gi = "Error"
- vardict[i] = gi
- repl = eval(repl, vardict)
- if repl != expected:
- print '=== grouping error', t,
- print repr(repl) + ' should be ' + repr(expected)
- else:
- print '=== Failed incorrectly', t
-
- # Try the match on a unicode string, and check that it
- # still succeeds.
- result = obj.search(unicode(s, "latin-1"))
- if result == None:
- print '=== Fails on unicode match', t
-
- # Try the match on a unicode pattern, and check that it
- # still succeeds.
- obj=re.compile(unicode(pattern, "latin-1"))
- result = obj.search(s)
- if result == None:
- print '=== Fails on unicode pattern match', t
-
- # Try the match with the search area limited to the extent
- # of the match and see if it still succeeds. \B will
- # break (because it won't match at the end or start of a
- # string), so we'll ignore patterns that feature it.
-
- if pattern[:2] != '\\B' and pattern[-2:] != '\\B' \
- and result != None:
- obj = re.compile(pattern)
- result = obj.search(s, result.start(0), result.end(0) + 1)
- if result == None:
- print '=== Failed on range-limited match', t
-
- # Try the match with IGNORECASE enabled, and check that it
- # still succeeds.
- obj = re.compile(pattern, re.IGNORECASE)
- result = obj.search(s)
- if result == None:
- print '=== Fails on case-insensitive match', t
-
- # Try the match with LOCALE enabled, and check that it
- # still succeeds.
- obj = re.compile(pattern, re.LOCALE)
- result = obj.search(s)
- if result == None:
- print '=== Fails on locale-sensitive match', t
-
- # Try the match with UNICODE locale enabled, and check
- # that it still succeeds.
- obj = re.compile(pattern, re.UNICODE)
- result = obj.search(s)
- if result == None:
- print '=== Fails on unicode-sensitive match', t
-