/// <summary>
/// Get the Supplies converting the Price into AUD given the exchange rate
/// </summary>
/// <returns></returns>
public IEnumerable <Supply> GetPriceInAUD()
{
// Check if the file exists before perfoming any operation
if (!File.Exists(_filePath))
{
return(new List <Supply>());
}
// Read the file from the provided path
var suppliesFromSource = FetchFromSource();
// Check if there is a conversion required
var requiresConversion = _currencyType != CurrencyType.AUD;
if (requiresConversion)
{
// You cant perform Calculation on an IEnumerable (properties are Readonly)
// pull it in memory only if there is a conversion required.
suppliesFromSource = suppliesFromSource.ToList();
foreach (var supply in suppliesFromSource)
{
supply.PriceInAUD = PriceConverter.GetConvertedPrice(supply.PriceInDollar, _conversionRate);
}
}
return(suppliesFromSource);
}
public void Is_Valid_Conversion()
{
// Arrage
var price = 200;
var exchangeRate = 0.7m;
var expectedOutput = 140.0m;
// Act
var converterValue = PriceConverter.GetConvertedPrice(price, exchangeRate);
// Assert
Assert.AreEqual(converterValue, expectedOutput);
}
