def test_2_should_have_3_letters(self): self.assertEquals(count_letters_in_numbers(2), 3)
def test_102_should_have_16_letters(self): self.assertEquals(count_letters_in_numbers(102), 16)
def test_200_should_have_10_letters(self): self.assertEquals(count_letters_in_numbers(200), 10)
def test_11_should_have_6_letters(self): self.assertEquals(count_letters_in_numbers(11), 6)
def test_9_should_have_4_letters(self): self.assertEquals(count_letters_in_numbers(9), 4)
def test_3_should_have_5_letters(self): self.assertEquals(count_letters_in_numbers(3), 5)