public decimal CalculateExchangeRate(UserCurrencyInput userInput)
{
var result = userInput.ExchangeCurrencyFrom.Amount / userInput.ExchangeCurrencyTo.Amount
* userInput.Amount;
return(result);
}
public void ExchangeRateCalculationService_GivenCurrencies_CalculateCorrectExchange(string currencyFrom, string currencyTo, int result)
{
//Arange
var path = "C:\\Users\\kater\\Documents\\dot-net\\CurrencyExchangeRate\\CurrencyExchangeRate\\Data\\ExchangeRates.json";
FetchData fetchData = new FetchData();
var exchangeRates = fetchData.LoadJson(path);
var currencyExchangeFrom = exchangeRates.Where(c => c.ISO == currencyFrom).FirstOrDefault();
var currencyExchangeTo = exchangeRates.Where(c => c.ISO == currencyTo).FirstOrDefault();
var amount = 2;
var userInputObject = new UserCurrencyInput()
{
Amount = amount,
ExchangeCurrencyFrom = currencyExchangeFrom,
ExchangeCurrencyTo = currencyExchangeTo
};
//Act
var rateCalculation = new ExchangeRateCalculationService();
var rateResult = rateCalculation.CalculateExchangeRate(userInputObject);
//Assert
result.Should().Be(result);
}
