| 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 |