def test_multiplication(self):
five = Dollar(5)
assert Dollar(10) == five.times(2)
assert Dollar(15) == five.times(3)
def test_multiplication(self):
"""テスト"""
five = Dollar(5)
self.assertEqual(Dollar(10), five.times(2), "5 * 2")
self.assertEqual(Dollar(15), five.times(3), "5 * 3")
