def test_collapseLetters(self): self.assertEqual('a', collapse.dominantLetter(['a', 'a', 'b', 'f', 'a'], self.placeholder))
def test_collapseLetters_twoDominantLetters(self): self.assertEqual(self.placeholder, collapse.dominantLetter(['a', 'a', 'b', 'c', 'b'], self.placeholder))
def test_collapseLetters_dominantLetterComesLast(self): self.assertEqual('x', collapse.dominantLetter(['a', 'a', 'b', 'c', 'b', 'x', 'x', 'x'], self.placeholder))
def test_collapseLetters_emptyList(self): self.assertIsNone(collapse.dominantLetter([], self.placeholder))
def test_collapseLetters(self): self.assertEqual( 'a', collapse.dominantLetter(['a', 'a', 'b', 'f', 'a'], self.placeholder))
def test_collapseLetters_dominantLetterComesLast(self): self.assertEqual( 'x', collapse.dominantLetter(['a', 'a', 'b', 'c', 'b', 'x', 'x', 'x'], self.placeholder))
def test_collapseLetters_twoDominantLetters(self): self.assertEqual( self.placeholder, collapse.dominantLetter(['a', 'a', 'b', 'c', 'b'], self.placeholder))