public async Task GetAllRates_InvokeProxyForEveryCurrency_Simultaneously()
{
var case1 = MakeCase(TimeSpan.FromSeconds(1));
var case2 = MakeCase(TimeSpan.FromSeconds(1));
var case3 = MakeCase(TimeSpan.FromSeconds(1));
var currencies = new[] { case1.From, case2.From, case3.From };
opts.Currencies = currencies;
var expectedResult = new[] { case1.Response, case2.Response, case3.Response }
.Select(r => r.ToDomain(opts.Name, currentTime))
.SelectMany(r => r)
.ToArray();
var proxy = new OpenExchangeProxyTest(new [] { case1, case2, case3 });
var provider = new OpenExchangeRatesProvider(proxy, clock.Object, Options.Create(opts), logger);
var watch = new Stopwatch();
watch.Start();
var result = await provider.GetAllRates();
watch.Stop();
// it means that proxy was invoked simultaneously for every currency
Assert.True(watch.Elapsed < TimeSpan.FromSeconds(3));
result.Should().BeEquivalentTo(expectedResult);
}
public async Task GetAllRates_IfSomeRequestsThrowException_TheyWillBeSuppressed()
{
var case1 = MakeCase(TimeSpan.FromSeconds(1));
var case2 = MakeCase(TimeSpan.FromSeconds(1), true);
var case3 = MakeCase(TimeSpan.FromSeconds(1));
var currencies = new[] { case1.From, case2.From, case3.From };
opts.Currencies = currencies;
var expectedResult = new[] { case1.Response, case3.Response }
.Select(r => r.ToDomain(opts.Name, currentTime))
.SelectMany(r => r)
.ToArray();
var proxy = new OpenExchangeProxyTest(new [] { case1, case2, case3 });
var provider = new OpenExchangeRatesProvider(proxy, clock.Object, Options.Create(opts), logger);
var result = await provider.GetAllRates();
result.Should().BeEquivalentTo(expectedResult);
}