def test_lyric_split_by_whitespace(self):
'''
Test case: Test the util function to be able extract relevant words from the the lyrics string.
'''
output = lyricFormat("dupa kupa lupa")
self.assertListEqual(output, ["dupa", "kupa", "lupa"])
output = lyricFormat("dupa kupa lupa")
self.assertListEqual(output, ["dupa", "kupa", "lupa"])
output = lyricFormat("dupa\nkupa\t\n\r\t lupa")
def test_lyric_lower_case(self):
'''
Test case: Test the util function to be able to convert to lower case.
'''
# Strange input but we should be able to handle it.
output = lyricFormat('DUPA KupA')
self.assertListEqual(output, ["dupa", "kupa"])
def test_lyric_handle_numbers(self):
'''
Test case: Test the util function to be able to handle numbers.
'''
# Strange input but we should be able to handle it.
output = lyricFormat('26th,27th')
self.assertListEqual(output, ["26th", "27th"])
def test_lyric_ignore_punctuation(self):
'''
Test case: Test the util function to be able to ignore punctuation.
'''
# Strange input but we should be able to handle it.
output = lyricFormat('dupa!!kupa ?, - lupa"mupa')
self.assertListEqual(output, ["dupa", "kupa", "lupa", "mupa"])
def test_lyric_format_apostrophe(self):
'''
Test case: Test the util function to be able to sanitise apostrophes
'''
# Strange input but we should be able to handle it.
output = lyricFormat("don't don`t don´t")
self.assertListEqual(output, ["don't", "don't", "don't"])