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]."))
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]."))
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_hasSubstring(self):
"""
L{_hasSubstring} returns True if the specified substring is present in
the text being searched.
"""
self.assertTrue(_hasSubstring("foo", "<foo>"))
