import unittest

from anagram import find_anagrams

# Tests adapted from `problem-specifications//canonical-data.json` @ v1.4.0

class AnagramTest(unittest.TestCase):

def test_no_matches(self):

candidates = ["hello", "world", "zombies", "pants"]

self.assertEqual(find_anagrams("diaper", candidates), [])

def test_detects_two_anagrams(self):

candidates = ["stream", "pigeon", "maters"]

self.assertEqual(

find_anagrams("master", candidates), ["stream", "maters"])

def test_does_not_detect_anagram_subsets(self):

self.assertEqual(find_anagrams("good", ["dog", "goody"]), [])

def test_detects_anagram(self):

candidates = ["enlists", "google", "inlets", "banana"]

self.assertEqual(find_anagrams("listen", candidates), ["inlets"])

def test_detects_three_anagrams(self):

candidates = [

"gallery", "ballerina", "regally", "clergy", "largely", "leading"

]

self.assertEqual(

find_anagrams("allergy", candidates),

["gallery", "regally", "largely"])

def test_does_not_detect_non_anagrams_with_identical_checksum(self):

self.assertEqual(find_anagrams("mass", ["last"]), [])

def test_detects_anagrams_case_insensitively(self):

candidates = ["cashregister", "Carthorse", "radishes"]

self.assertEqual(

find_anagrams("Orchestra", candidates), ["Carthorse"])

def test_detects_anagrams_using_case_insensitive_subject(self):

candidates = ["cashregister", "carthorse", "radishes"]

self.assertEqual(

find_anagrams("Orchestra", candidates), ["carthorse"])

def test_detects_anagrams_using_case_insensitive_possible_matches(self):

candidates = ["cashregister", "Carthorse", "radishes"]

self.assertEqual(

find_anagrams("orchestra", candidates), ["Carthorse"])

def test_does_not_detect_a_anagram_if_the_original_word_is_repeated(self):

self.assertEqual(find_anagrams("go", ["go Go GO"]), [])

def test_anagrams_must_use_all_letters_exactly_once(self):

self.assertEqual(find_anagrams("tapper", ["patter"]), [])

def test_words_are_not_anagrams_of_themselves_case_insensitive(self):

candidates = ["BANANA", "Banana", "banana"]

self.assertEqual(find_anagrams("BANANA", candidates), [])

if __name__ == '__main__':

unittest.main()