public void IncorrectInputProducesInvalidCoin()
{
//Create a service with the USD Currency (could mock with more time)
ICoinValueService service = new CoinValueService(new USDCurrency());
CoinValueViewModel coinValue = service.GetCoinValue(0, 0);
Assert.True(coinValue.IsValidCoin == false);
coinValue = service.GetCoinValue(-1, 0);
Assert.True(coinValue.IsValidCoin == false);
coinValue = service.GetCoinValue(-1, 1);
Assert.True(coinValue.IsValidCoin == false);
coinValue = service.GetCoinValue(0, -1);
Assert.True(coinValue.IsValidCoin == false);
coinValue = service.GetCoinValue(1, -1);
Assert.True(coinValue.IsValidCoin == false);
coinValue = service.GetCoinValue(1, 1);
Assert.True(coinValue.IsValidCoin == false);
coinValue = service.GetCoinValue(-1, -1);
Assert.True(coinValue.IsValidCoin == false);
}
public void CorrectInputProducesCorrectOutputUSDCurrency()
{
//Create a service with the USD Currency (could mock with more time)
ICoinValueService service = new CoinValueService(new USDCurrency());
CoinValueViewModel coinValue = service.GetCoinValue(2.5, 19.05);
Assert.True(coinValue.IsValidCoin);
Assert.True(coinValue.CoinValue == 0.01);
coinValue = service.GetCoinValue(5, 21.209);
Assert.True(coinValue.IsValidCoin);
Assert.True(coinValue.CoinValue == 0.05);
coinValue = service.GetCoinValue(2.268, 17.907);
Assert.True(coinValue.IsValidCoin);
Assert.True(coinValue.CoinValue == 0.10);
coinValue = service.GetCoinValue(5.67, 24.257);
Assert.True(coinValue.IsValidCoin);
Assert.True(coinValue.CoinValue == 0.25);
coinValue = service.GetCoinValue(11.34, 30.607);
Assert.True(coinValue.IsValidCoin);
Assert.True(coinValue.CoinValue == 0.50);
coinValue = service.GetCoinValue(22.68, 38.1);
Assert.True(coinValue.IsValidCoin);
Assert.True(coinValue.CoinValue == 1);
}
public CoinValueViewModel GetCoinValue(double coinWeight, double coinSize)
{
CoinValueViewModel model = new CoinValueViewModel();
foreach (CurrencyItem currencyItem in _currency.GetItems())
{
if (currencyItem.MaxWeight >= coinWeight &&
currencyItem.MinWeight <= coinWeight &&
currencyItem.MaxSize >= coinSize &&
currencyItem.MinSize <= coinSize)
{
model.CoinValue = currencyItem.Value;
}
}
return(model);
}
