def test_no_path_given(self):
"""
Check handling of an invalid path
"""
# xxxx.txt does not exist
path = "../resources/XXXX.txt"
start_word = 'cat'
end_word = 'dog'
test_path = WordPath(path, start_word, end_word)
# only the start word is returned
self.assertEqual(test_path.__str__() , 'cat')
def test_main(self):
"""
test the expected paths are generated for the start_word and end_word
"""
test_data = ['cat -> cot -> cog -> dog',
'pint -> pent -> peat -> prat -> pray',
'fire -> fare -> care -> carp -> camp']
for test in test_data:
seperate = test.split()
start_word = seperate[0]
end_word = seperate[-1]
expected = WordPath(self.path, start_word, end_word)
self.assertEqual(expected.__str__(), test)
# test identical start and end words
expected = WordPath(self.path, 'cat', 'cat')
self.assertEqual(expected.__str__(), 'cat')
# test words not in dict
expected = WordPath(self.path, 'xxxxx', 'yyyyy')
self.assertEqual(expected.__str__(), 'xxxxx')
