public void ShouldCalculateWHenDkkUsed(string from, string to, decimal fromAmount, decimal expected)
{
var service = new DefaultExchangeService();
decimal delta = expected * 0.05m;
Assert.InRange(
service.GetAmount(from, to, fromAmount),
expected - delta, expected + delta
);
}
public void ShouldErrorWhenUnknownCurrency()
{
var service = new DefaultExchangeService();
var result = Assert.Throws <InvalidCurrencyException>(
() => service.GetAmount("AAA", "USD", 1)
);
Assert.Equal("AAA", result.InvalidValue);
result = Assert.Throws <InvalidCurrencyException>(
() => service.GetAmount("USD", "BBB", 1)
);
Assert.Equal("BBB", result.InvalidValue);
}
public void ShouldReturnSameAmountWhenCurrenciesMatch(string from, string to, decimal fromAmount)
{
var service = new DefaultExchangeService();
Assert.Equal(fromAmount, service.GetAmount(from, to, fromAmount));
}
