def test_input_with_params(self): assert get_words("hello world", 6) == set([]) assert get_words("hello world bye", 4) == set(["hello", "world"]) assert get_words("hello world bye goooodbye", 4, 6) == set(["hello", "world"])
def test_normal_input(self): assert get_words("hello") == set(["hello"]) assert get_words("hello world") == set(["hello", "world"])
def test_empty_input(self): assert get_words("") == set([])