def test_problem_1_2(self):
self.assertFalse(p_1_2.are_permutations("alex", "aalex"))
self.assertTrue(p_1_2.are_permutations("alex", "xela"))
self.assertFalse(p_1_2.are_permutations("aabb", "aaaa"))
self.assertFalse(p_1_2.are_permutations("aaaa", "aabb"))
self.assertFalse(p_1_2.are_permutations("aaaa", "aa"))
self.assertTrue(p_1_2.are_permutations("", ""))
def test_problem_1_2(self):
s1 = "alex"
s2 = "aalex"
s3 = "xela"
self.assertFalse(p_1_2.are_permutations(s1, s2))
self.assertTrue(p_1_2.are_permutations(s1, s3))
