def test4(self):
arr1 = ['1', '2', '3', '4']
targsum = 6
realsum = 2
random.shuffle(arr1)
self.assertEqual(calculate_combinations(arr1, targsum), realsum)
def test1(self):
arr1 = [1, 2, 3, 4]
targsum = 6
realsum = 2
random.shuffle(arr1)
self.assertEqual(calculate_combinations(arr1, targsum), realsum)
def test3(self):
arr1 = ['A', 'B', 'C', 'D']
targsum = 6
realsum = 2
random.shuffle(arr1)
self.assertEqual(calculate_combinations(arr1, targsum), realsum)