def testLowercase(self):
self.assertEqual(extractWords('asdf'), ['asdf'])
def testEmptyString(self):
self.assertEqual(extractWords(''), [])
def testSpaces(self):
self.assertEqual(extractWords('asdf qwer'), ['asdf', 'qwer'])
self.assertEqual(extractWords('asdf qwer'), ['asdf', 'qwer'])
self.assertEqual(extractWords("asdf\tqwer"), ['asdf', 'qwer'])
def testDigits(self):
self.assertEqual(extractWords('1234'), [])
self.assertEqual(extractWords('as12df'), ['asdf'])
def testUppercase(self):
self.assertEqual(extractWords('ASDF'), ['asdf'])