public void test_currency_times_n_then_return_amount_multiplied_by_n()
{
//Given
var fiveTWD = FakeMoneyBuilder.CreateTWD(5);
//When
var ans = exchange.Times(fiveTWD, 5);
//Then
Assert.Equal(FakeMoneyBuilder.CreateTWD(25), ans);
}
public void test_money_with_same_amount_should_equality()
{
//given
var fiveNT = FakeMoneyBuilder.CreateTWD(5);
var fivebucks = FakeMoneyBuilder.CreateUSD(5);
//when
//then
Assert.Equal(fiveNT,FakeMoneyBuilder.CreateTWD(5));
Assert.Equal(fivebucks, FakeMoneyBuilder.CreateUSD(5));
Assert.NotEqual(fivebucks, fiveNT);
}
public void test_currency_exchange_to_another_currency()
{
//Given
var usd = Currency.Create("USD", 2);
var fiveTWD = FakeMoneyBuilder.CreateTWD(5);
//When
var bucks = exchange.ExchangeTo(fiveTWD, usd);
//Then
Assert.True(bucks.Currency.Equals(usd));
Assert.Equal(1, bucks.Amount);
}
public void test_subtraction_of_money_gives_correct_amount()
{
//Given
var profit = FakeMoneyBuilder.CreateTWD(10);
var cost = FakeMoneyBuilder.CreateTWD(3);
var except_earn = FakeMoneyBuilder.CreateTWD(7);
//When
var actual_earn = exchange.Subtraction(profit, cost);
//Then
Assert.Equal(except_earn, actual_earn);
}
public void test_sum_of_money_gives_full_amount()
{
//Given
var money1 = FakeMoneyBuilder.CreateTWD(5);
var money2 = FakeMoneyBuilder.CreateUSD(10);
var money3 = FakeMoneyBuilder.CreateTWD(3);
//When
var sum = exchange.Sum(Currency.Default, money1, money2, money3);
var banknote = Money.Create(58, Currency.Default);
//Then
Assert.Equal(sum, banknote);
}