import unittest


class TestCoinChange(unittest.TestCase):

    def test_coin_change(self):
        coin_changer = CoinChanger()
        self.assertRaises(TypeError, coin_changer.make_change, None, None)
        self.assertEqual(coin_changer.make_change([], 0), 0)
        self.assertEqual(coin_changer.make_change([1, 2, 3], 5), 2)
        self.assertEqual(coin_changer.make_change([3, 2, 1], 5), 2)
        self.assertEqual(coin_changer.make_change([3, 2, 1], 8), 3)
        print('Success: test_coin_change')


def main():
    test = TestCoinChange()
    test.test_coin_change()


if __name__ == '__main__':
    main()