def test_same_first_and_last_characters(self): self.assertIs(is_isogram("angola"), False)
def test_empty_string(self): assert is_isogram("") == True
def test_word_with_duplicated_character_in_mixed_case_lowercase_first(self): self.assertIs(is_isogram("alphAbet"), False)
def test_word_with_duplicated_letter_in_mixed_case_lowercase_first(self): self.assertIs(is_isogram("alphAbet"), False)
def test_duplicated_character_in_the_middle(self): assert is_isogram("accentor") == False
def test_longest_reported_english_isogram(self): self.assertIs(is_isogram("subdermatoglyphic"), True)
def test_made_up_name_that_is_an_isogram(self): self.assertIs(is_isogram("Emily Jung Schwartzkopf"), True)
def test_isogram_with_only_lower_case_characters(self): self.assertIs(is_isogram("isogram"), True)
def test_word_with_one_duplicated_character(self): self.assertIs(is_isogram("eleven"), False)
def test_empty_string(self): self.assertTrue(is_isogram(""))
import isogram print(isogram.is_isogram("isogram"))
def test_isogram_with_duplicated_non_letter_character(self): self.assertTrue(is_isogram("Hjelmqvist-Gryb-Zock-Pfund-Wax"))
def test_isogram_with_duplicated_hyphen(self): self.assertIs(is_isogram("six-year-old"), True)
def test_isogram_equals(self): self.assertEquals(is_isogram('Dermatoglyphics'), True) self.assertEquals(is_isogram('isogram'), True) self.assertEquals(is_isogram('thumbscrewjapingly'), True) self.assertEquals(is_isogram('moose'), False) self.assertEquals(is_isogram('abcdefghijklmnopqrstuwwxyz'), False)
def test_word_with_duplicated_character_in_mixed_case(self): self.assertIs(is_isogram("Alphabet"), False)
def test_hypothetical_isogrammic_word_with_hyphen(self): self.assertIs(is_isogram("thumbscrew-japingly"), True)
def test_isogram_with_duplicated_letter_and_nonletter_character(self): self.assertIs(is_isogram("Aleph Bot Chap"), False)
def test_isogram_with_duplicated_non_letter_character(self): self.assertIs(is_isogram("Hjelmqvist-Gryb-Zock-Pfund-Wax"), True)
def test_made_up_name_that_is_an_isogram(self): assert is_isogram("Emily Jung Schwartzkopf") == True
def test_isogram_with_duplicated_letter_and_nonletter_character(self): assert is_isogram("Aleph Bot Chap") == False
def test_duplicated_character_in_the_middle(self): self.assertIs(is_isogram("accentor"), False)
def test_word_with_one_duplicated_character_from_the_end_of_the_alphabet(self): self.assertIs(is_isogram("zzyzx"), False)
def test_hypothetical_word_with_duplicated_character_following_hyphen(self): self.assertIs(is_isogram("thumbscrew-jappingly"), False)
def test_empty_string(self): self.assertIs(is_isogram(""), True)
def test_isogram_false(self): self.assertFalse(is_isogram("abcdeaa")) self.assertFalse(is_isogram("abcdeaB"))
def test_isogram_with_only_lower_case_characters(self): assert is_isogram("isogram") == True
def test_isogram_true(self): self.assertTrue(is_isogram("abcde")) self.assertTrue(is_isogram(''))
def test_word_with_one_duplicated_character(self): assert is_isogram("eleven") == False
def test_longest_reported_english_isogram(self): assert is_isogram("subdermatoglyphic") == True
def test_word_with_duplicated_character_in_mixed_case(self): assert is_isogram("Alphabet") == False
def test_hypothetical_isogrammic_word_with_hyphen(self): assert is_isogram("thumbscrew-japingly") == True
def test_isogram_with_duplicated_hyphen(self): assert is_isogram("six-year-old") == True
def test_word_with_one_duplicated_character_from_end_of_alphabet(self): self.assertIs(is_isogram("zzyzx"), False)