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- #!/usr/local/bin/python
- # -*- mode: python -*-
- # test_re.py,v 1.14 1997/12/30 17:32:33 guido Exp
-
- 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.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('.', 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<unk>x)', '\g<unk>\g<unk>', '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\bBZ\aAwWsSdD'
- 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))
-
- except AssertionError:
- raise TestFailed, "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<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)
- except AssertionError:
- raise TestFailed, "re.subn"
-
- 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"
-
- 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)
-
- if verbose:
- print 'Running tests on re.split'
-
- 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
-
- from re_tests import *
- if verbose:
- print 'Running re_tests test suite'
- else:
- # To save time, only run the first and last 10 tests
- pass #tests = tests[:10] + tests[-10:]
-
- 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 ***'
- 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 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':
- obj=re.compile(pattern)
- result=obj.search(s, pos=result.start(0), endpos=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
-
-