def test_sum_min_max(self):
a = Vector(1, 2, 3, 4, 5)
# after initialisation
expected_min = (1.0, 0)
expected_max = (5.0, 4)
expected_sum = 15
self.assertEqual(expected_min, a.min)
self.assertEqual(expected_max, a.max)
self.assertEqual(expected_sum, a.sum)
# after changing a component
a[1] = -2
expected_min = (-2.0, 1)
expected_max = (5.0, 4)
expected_sum = 11
self.assertEqual(expected_min, a.min)
self.assertEqual(expected_max, a.max)
self.assertEqual(expected_sum, a.sum)
# after deletion
a.pop(1)
expected_min = (1.0, 0)
expected_max = (5.0, 3)
expected_sum = 13
self.assertEqual(expected_min, a.min)
self.assertEqual(expected_max, a.max)
self.assertEqual(expected_sum, a.sum)
# after appending a scalar
a.append(-2)
expected_min = (-2.0, 4)
expected_max = (5.0, 3)
expected_sum = 11
self.assertEqual(expected_min, a.min)
self.assertEqual(expected_max, a.max)
self.assertEqual(expected_sum, a.sum)
# after inserting a value
a.insert(2, -20)
expected_min = (-20.0, 2)
expected_max = (5.0, 4)
expected_sum = -9
self.assertEqual(expected_min, a.min)
self.assertEqual(expected_max, a.max)
self.assertEqual(expected_sum, a.sum)
# after inserting a value at min position
a.insert(2, -21)
expected_min = (-21.0, 2)
expected_max = (5.0, 5)
expected_sum = -30
self.assertEqual(expected_min, a.min)
self.assertEqual(expected_max, a.max)
self.assertEqual(expected_sum, a.sum)
# after inserting a value at max position
a.insert(5, 10)
expected_min = (-21.0, 2)
expected_max = (10, 5)
expected_sum = -20
self.assertEqual(expected_min, a.min)
self.assertEqual(expected_max, a.max)
self.assertEqual(expected_sum, a.sum)
# after appending a sequence
a.append([-22, 20, 1])
expected_min = (-22.0, 8)
expected_max = (20.0, 9)
expected_sum = -21.0
self.assertEqual(expected_min, a.min)
self.assertEqual(expected_max, a.max)
self.assertEqual(expected_sum, a.sum)
def test_insert(self):
a = Vector(1, 2, 3)
a.insert(1, 2)
expected_a_after_insert = Vector(1, 2, 2, 3)
self.assertEqual(expected_a_after_insert, a)