def test_case1(self): cost = get_cost(['Oksana Baiul', 'Michelle Kwan']) self.assertEqual(cost, 1)
def test_case2(self): cost = get_cost([ 'Elvis Stojko', 'Evgeni Plushenko', 'Kristi Yamaguchi']) self.assertEqual(cost, 0)
def test_case3(self): cost = get_cost(['1', '3', '4', '2']) self.assertEqual(cost, 1)