def test_bopomofo(self):
self.assertEqual(tone_number('ㄧㄣ'), '1')
self.assertEqual(tone_number('ㄖㄨˊ'), '2')
self.assertEqual(tone_number('ㄋㄧˇ'), '3')
self.assertEqual(tone_number('ㄓㄨˋ'), '4')
self.assertEqual(tone_number('ㄋㄜ˙'), '5')
def test_tone_styling(self):
self.assertEqual(tone_number('<span class="tone2">nǐ</span>'), '3')
def test_tone_superscript(self):
self.assertEqual(tone_number('ni³'), '3')
def test_tone_mark(self):
self.assertEqual(tone_number('nǐ'), '3')
def test_tone_number(self):
self.assertEqual(tone_number('ni3'), '3')
