Viewing file:  test_util.py (1.56 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
# Copyright (c) 2001-2010 Twisted Matrix Laboratories.
# See LICENSE for details.
"""
Tests for L{twisted.web.util}.
"""
from twisted.trial.unittest import TestCase
from twisted.web.util import _hasSubstring
class HasSubstringTestCase(TestCase):
"""
Test regular expression-based substring searching.
"""
def test_hasSubstring(self):
"""
L{_hasSubstring} returns True if the specified substring is present in
the text being searched.
"""
self.assertTrue(_hasSubstring("foo", "<foo>"))
def test_hasSubstringWithoutMatch(self):
"""
L{_hasSubstring} returns False if the specified substring is not
present in the text being searched.
"""
self.assertFalse(_hasSubstring("foo", "<bar>"))
def test_hasSubstringOnlyMatchesStringsWithNonAlphnumericNeighbors(self):
"""
L{_hasSubstring} returns False if the specified substring is present
in the text being searched but the characters surrounding the
substring are alphanumeric.
"""
self.assertFalse(_hasSubstring("foo", "barfoobaz"))
self.assertFalse(_hasSubstring("foo", "1foo2"))
def test_hasSubstringEscapesKey(self):
"""
L{_hasSubstring} uses a regular expression to determine if a substring
exists in a text snippet. The substring is escaped to ensure that it
doesn't interfere with the regular expression.
"""
self.assertTrue(_hasSubstring("[b-a]",
"Python can generate names like [b-a]."))
|