def test_sum_times():
five_bucks = Money.dollar(5)
ten_francs = Money.franc(10)
sum = Sum(five_bucks, ten_francs).times(2)
bank = Bank()
bank.add_rate("CHF", "USD", 2)
reduced = bank.reduce(sum, "USD")
assert Money.dollar(20).equals(reduced)
def test_sum_plus_money():
five_bucks = Money.dollar(5)
ten_francs = Money.franc(10)
sum = Sum(five_bucks, ten_francs).plus(Money.dollar(5))
bank = Bank()
bank.add_rate("CHF", "USD", 2)
reduced = bank.reduce(sum, "USD")
assert Money.dollar(15).equals(reduced)
def test_sum_different_currency():
current_value = Money.franc(5)
sum = current_value.plus(Money.dollar(5))
bank = Bank()
bank.add_rate("CHF", "USD", 2)
reduced = bank.reduce(sum, "USD")
assert Money.dollar(7.5).equals(reduced)
sum = Money.dollar(5).plus(current_value)
reduced = bank.reduce(sum, "USD")
assert Money.dollar(7.5).equals(reduced)
def test_currency():
assert Money.dollar(5).currency() == "USD"
assert Money.franc(5).currency() == "CHF"
def test_equal_different_currency():
assert not Money.dollar(5).equals(Money.franc(5))
assert not Money.dollar(12).equals(Money.franc(12))
assert not Money.dollar(5).equals(Money.franc(6))
assert not Money.franc(5).equals(Money.dollar(6))