def test_not_reverse(self):
numbers = [4, 1, 2, 3]
self.assertEqual(rotate_list(numbers, reverse=False), 4)
self.assertEqual(numbers, [1, 2, 3, 4])
def test_reverse_rotate(self):
numbers = [1, 2, 3, 4]
self.assertEqual(rotate_list(numbers, reverse=True), 4)
self.assertEqual(numbers, [4, 1, 2, 3])
def test_two_items(self):
numbers = ['a', 'b']
self.assertEqual(rotate_list(numbers), 'a')
self.assertEqual(numbers, ['b', 'a'])
def test_one_item(self):
numbers = [0]
self.assertEqual(rotate_list(numbers), 0)
self.assertEqual(numbers, [0])
def test_four_items(self):
numbers = [1, 2, 3, 4]
self.assertEqual(rotate_list(numbers), 1)
self.assertEqual(numbers, [2, 3, 4, 1])