def test_check_palindrome_invalid_case_2(self):
     self.assertEqual(
         False, exercises.check_palindrome("Was it a dog or a cat I saw?"))
 def test_check_palindrome_invalid_numbers(self):
     self.assertEqual(False, exercises.check_palindrome("123421"))
 def test_check_palindrome_valid_numbers_case_2(self):
     self.assertEqual(True, exercises.check_palindrome("123321"))
 def test_check_palindrome_invalid_case_1(self):
     self.assertEqual(False, exercises.check_palindrome("nope"))
 def test_check_palindrome_valid_case_6(self):
     self.assertEqual(True, exercises.check_palindrome("No 'x' in Nixon"))
 def test_check_palindrome_valid_case_5(self):
     self.assertEqual(
         True, exercises.check_palindrome("Was it a car or a cat I saw?"))
 def test_check_palindrome_valid_case_4(self):
     self.assertEqual(
         True,
         exercises.check_palindrome("A man, a plan, a canal, Panama!"))
 def test_check_palindrome_valid_case_3(self):
     self.assertEqual(True, exercises.check_palindrome("Madam"))
 def test_check_palindrome_valid_case_2(self):
     self.assertEqual(True, exercises.check_palindrome("racecar"))