public async Task <CryptocurrencyQuotesResponse> Execute(CryptocurrencyQuotesRequest request)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
var baseCryptocurrencyCode = CurrencyCode.Of(request.CryptocurrencyCode);
var quotes = await _exchangeRatesService.GetQuotesFor(baseCryptocurrencyCode);
return(CryptocurrencyQuotesResponse.From(baseCryptocurrencyCode, quotes));
}
public void Is_successfully_created_from_base_cryptocurrency_code_and_quotes_when_both_values_are_present()
{
var expectedCryptocurrencyQuotesResponse = new CryptocurrencyQuotesResponse
{
BaseCryptocurrencyCode = BTC,
Quotes = new List <QuoteCurrencyDetails>
{
new QuoteCurrencyDetails {
Code = USD, ExchangeRate = BTC_to_USD
}
}
};
var cryptocurrencyQuotesResponse = CryptocurrencyQuotesResponse.From(
CurrencyCode.Of(BTC),
QuoteCurrenciesOf((USD, BTC_to_USD)));
cryptocurrencyQuotesResponse.Should().BeEquivalentTo(expectedCryptocurrencyQuotesResponse);
}
public void Requires_quotes_when_created_from_base_cryptocurrency_code_and_quotes()
{
Action createCryptocurrencyQuotesResponseFromBaseCryptocurrencyCodeAndQuotes = () =>
CryptocurrencyQuotesResponse.From(CurrencyCode.Of(BTC), null);
createCryptocurrencyQuotesResponseFromBaseCryptocurrencyCodeAndQuotes.Should()
.ThrowExactly <ArgumentNullException>()
.Which.ParamName.Should().Be("quotes");
}
public void Requires_base_cryptocurrency_code_when_created_from_base_cryptocurrency_code_and_quotes()
{
Action createCryptocurrencyQuotesResponseFromBaseCryptocurrencyCodeAndQuotes = () =>
CryptocurrencyQuotesResponse.From(null, Enumerable.Empty <QuoteCurrency>());
createCryptocurrencyQuotesResponseFromBaseCryptocurrencyCodeAndQuotes.Should()
.ThrowExactly <ArgumentNullException>()
.Which.ParamName.Should().Be("baseCryptocurrencyCode");
}