def test_can_pop_any_position(self):
vector = Vector(2, 5, 1)
val = vector.pop(1)
self.assertEqual(val, 5)
self.assertEqual(vector._values, [2, 1])
def test_can_pop_value(self):
vector = Vector(2, 5, 1)
val = vector.pop()
self.assertEqual(val, 1)
self.assertEqual(vector._values, [2, 5])