def test_should_return_lower_case_string_of_string_with_capital_letters(self): self.assertEqual('foobar', _switch_characters_to_lower_case('FooBar'))
def test_should_return_lower_case_string_of_given_string(self): self.assertEqual('abc', _switch_characters_to_lower_case('ABC'))
def test_should_return_lower_case_character_of_character(self): self.assertEqual('a', _switch_characters_to_lower_case('A'))
def test_should_return_lower_case_string_of_string_with_capital_letters( self): self.assertEqual('foobar', _switch_characters_to_lower_case('FooBar'))