def test_mixed_addition(self):
     five_dollar = Money.dollar(5)
     ten_franc = Money.franc(10)
     bank = Bank()
     bank.add_rate("CHF", "USD", 2)
     result = bank.reduce(ten_franc.plus(five_dollar), "USD")
     assert Money.dollar(10) == result, "{}".format(result.amount)
 def test_multiplication(self):
     five_dollar = Money.dollar(5)
     assert five_dollar.times(2) == Money.dollar(10)
     assert five_dollar.times(3) == Money.dollar(15)
     # Check currency with times() method
     five_franc = Money.franc(5)
     assert five_franc.times(2) == five_franc.times(2)
     assert five_dollar.times(2) == five_dollar.times(2)
     assert not five_franc.times(2) == five_dollar.times(2)
 def test_currency(self):
     assert "USD" == Money.dollar(1).get_currency()
     assert "CHF" == Money.franc(1).get_currency()
 def test_reduce_money_difference_currency(self):
     bank = Bank()
     bank.add_rate("CHF", "USD", 2)
     result = bank.reduce(Money.franc(2), "USD")
     assert Money.dollar(1) == result
 def test_equals(self):
     assert Money.dollar(5).equals(Money.dollar(5))
     assert not Money.dollar(5).equals(Money.dollar(6))
     assert not Money.dollar(5).equals(Money.franc(5))
     assert not Money.franc(5).equals(Money.dollar(5))