public async Task WhenEcbAccessSubmitsRequestToApi_ThenExpectedRequestIsSubmitted()
{
var baseUri = "http://localhost";
var baseCurrency = "baseCur";
var requestDate = new DateTime(2019, 01, 3);
var httpMessageHandler = new Mock <HttpMessageHandler>();
Uri actualUri = default(Uri);
httpMessageHandler.Protected().As <HttpMessageHandlerProtectedMembers>()
.Setup(m => m.SendAsync(It.IsAny <HttpRequestMessage>(), It.IsAny <CancellationToken>()))
.Callback <HttpRequestMessage, CancellationToken>((message, token) => actualUri = message.RequestUri)
.ReturnsAsync(
new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StringContent("content")
}
);
var ecbAccess = new EcbExchangeRatesAccess(
Mock.Of <IApiResponseHandler>(),
new HttpClient(httpMessageHandler.Object),
new Uri(baseUri));
await ecbAccess.GetRates(new ExchangeRatesRequest(baseCurrency, requestDate));
var uriBuilder = new UriBuilder(baseUri)
{
Path = $"{requestDate.Date.ToString("yyyy-MM-dd")}",
Query = $"base={baseCurrency}"
};
actualUri.Should().BeEquivalentTo(uriBuilder.Uri);
}
public async Task WhenLatestRatesAreRetrieved_ThenApiResponseIsPassedToHandler()
{
var expectedHandlerInput = "some simple json structure";
var httpMessageHandler = new Mock <HttpMessageHandler>();
httpMessageHandler.Protected().As <HttpMessageHandlerProtectedMembers>()
.Setup(m => m.SendAsync(It.IsAny <HttpRequestMessage>(), It.IsAny <CancellationToken>()))
.ReturnsAsync(
new HttpResponseMessage(HttpStatusCode.OK)
{
Content = new StringContent(expectedHandlerInput)
});
string actualHandlerInput = null;
var responseHandler = new Mock <IApiResponseHandler>();
responseHandler.Setup(m => m.ParseResponse(It.IsAny <string>()))
.Callback <string>(input => actualHandlerInput = input);
var apiAccess = new EcbExchangeRatesAccess(
responseHandler.Object,
new HttpClient(httpMessageHandler.Object),
new Uri("http://localhost"));
await apiAccess.GetRates(new ExchangeRatesRequest("BASE", DateTime.UtcNow));
actualHandlerInput.Should().Be(expectedHandlerInput);
}
public void WhenEcbAccessProvidesDefaultRequest_ThenRequestShouldBeforEuroForToday()
{
var ecbAccess = new EcbExchangeRatesAccess(
Mock.Of <IApiResponseHandler>(),
new HttpClient(),
new Uri("http://localhost"));
var defaultRequest = ecbAccess.DefaultRequest;
defaultRequest.BaseCurrency.Should().Be("EUR");
defaultRequest.Date.Date.Should().Be(DateTime.UtcNow.Date);
}