public async Task GetConversionRate_WithInvalidCurrencies()
{
// arrange
var client = new CurrencyServiceClient(
_httpClient,
"https://free.currconv.com/api/v7/currencies?apiKey=d4cf3228112bfb5a29f5",
"https://free.currconv.com/api/v7/convert?compact=y");
// act - assert
await Assert.ThrowsAsync <HttpRequestException>(() => client.GetConversionRate("USD", "EUR"));
}
public async Task GetConversionRate_WithValidLookup()
{
// arrange
var client = new CurrencyServiceClient(_httpClient);
// act
var result = await client.GetConversionRate("USD", "CAD");
// assert
Assert.NotNull(result);
Assert.Equal("USD", result.ConvertFrom);
Assert.Equal("CAD", result.ConvertTo);
Assert.True(result.Rate >= 1M);
}
public async Task GetConversionRate_WithSameCurrency()
{
// arrange
var client = new CurrencyServiceClient(_httpClient);
// act
var result = await client.GetConversionRate("EUR", "EUR");
// assert
Assert.NotNull(result);
Assert.Equal("EUR", result.ConvertFrom);
Assert.Equal("EUR", result.ConvertTo);
Assert.True(result.Rate == 1M);
}
public async Task GetCurrencies()
{
// arrange
var client = new CurrencyServiceClient(_httpClient);
// act
var result = await client.GetCurrencies();
// assert
Assert.NotEmpty(result);
Assert.Contains <CurrencyDescriptor>(result, p => p.Id == "USD");
Assert.Contains <CurrencyDescriptor>(result, p => p.Id == "EUR");
var usd = result.First(p => p.Id == "USD");
Assert.Equal("United States Dollar", usd.CurrencyName);
Assert.Equal("$", usd.CurrencySymbol);
}
decimal GetExchangeRate(CurrencyCode fromCurrency, CurrencyCode toCurrency)
{
decimal d = 0;
try
{
CurrencyServiceClient csc = new CurrencyServiceClient();
var result = csc.GetConversionRate(fromCurrency, toCurrency);
if (result != null)
{
d = (decimal)result.Rate;
}
}
catch (Exception ex)
{
Debug.WriteLine("BeginGetExchangeRate for " + fromCurrency.ToString() + " threw exception: " + ex.Message);
}
return d;
}
