public async Task TryInvokeAsync_ThrowsInvocationExceptionIfHttpResponseHas500StatusCode()
{
// Arrange
var dummyInvocationRequest = new InvocationRequest(ModuleSourceType.Cache, "dummyModuleSource");
Mock <HttpContent> mockRequestHttpContent = _mockRepository.Create <HttpContent>(); // HttpContent is an abstract class
Mock <IHttpContentFactory> mockHttpContentFactory = _mockRepository.Create <IHttpContentFactory>();
mockHttpContentFactory.Setup(h => h.Create(dummyInvocationRequest)).Returns(mockRequestHttpContent.Object);
var dummyHttpResponseMessage = new HttpResponseMessage(HttpStatusCode.InternalServerError)
{
Content = new StreamContent(new MemoryStream())
};
Mock <IHttpClientService> mockHttpClientService = _mockRepository.Create <IHttpClientService>();
mockHttpClientService.Setup(h => h.SendAsync(It.Is <HttpRequestMessage>(hr => ReferenceEquals(hr.Content, mockRequestHttpContent.Object)),
HttpCompletionOption.ResponseHeadersRead,
CancellationToken.None)).
ReturnsAsync(dummyHttpResponseMessage);
var dummyInvocationError = new InvocationError("dummyErrorMessage", "dummyErrorStack");
Mock <IJsonService> mockJsonService = _mockRepository.Create <IJsonService>();
mockJsonService.Setup(j => j.DeserializeAsync <InvocationError>(It.IsAny <Stream>(), CancellationToken.None)).ReturnsAsync(dummyInvocationError);
#pragma warning disable IDE0067
ExposedHttpNodeJSService testSubject = CreateHttpNodeJSService(httpContentFactory: mockHttpContentFactory.Object,
httpClientService: mockHttpClientService.Object,
jsonService: mockJsonService.Object);
#pragma warning disable IDE0067
// Act and assert
InvocationException result = await Assert.ThrowsAsync <InvocationException>(() => testSubject.ExposedTryInvokeAsync <string>(dummyInvocationRequest, CancellationToken.None)).ConfigureAwait(false);
_mockRepository.VerifyAll();
Assert.Equal(dummyInvocationError.ErrorMessage + Environment.NewLine + dummyInvocationError.ErrorStack, result.Message, ignoreLineEndingDifferences: true);
}
public async void AllInvokeMethods_HandleHttpClientErrorsSuchAsMalformedRequests()
{
// Arrange
HttpNodeJSService testSubject = CreateHttpNodeJSService();
await testSubject.InvokeFromStringAsync("module.exports = callback => callback();").ConfigureAwait(false); // Starts the Node.js process
Uri dummyEndpoint = testSubject.Endpoint;
var dummyJsonService = new JsonService();
// Act
using (var dummyHttpClient = new HttpClient())
// Send a request with an invalid HTTP method. NodeJS drops the connection halfway through and fires the clientError event - https://nodejs.org/api/http.html#http_event_clienterror
using (var dummyHttpRequestMessage = new HttpRequestMessage(new HttpMethod("INVALID"), dummyEndpoint))
using (HttpResponseMessage dummyHttpResponseMessage = await dummyHttpClient.SendAsync(dummyHttpRequestMessage).ConfigureAwait(false))
using (Stream dummyStream = await dummyHttpResponseMessage.Content.ReadAsStreamAsync().ConfigureAwait(false))
{
InvocationError result = await dummyJsonService.DeserializeAsync <InvocationError>(dummyStream).ConfigureAwait(false);
// Assert
Assert.Equal(HttpStatusCode.InternalServerError, dummyHttpResponseMessage.StatusCode);
Assert.False(string.IsNullOrWhiteSpace(result.ErrorMessage));
Assert.False(string.IsNullOrWhiteSpace(result.ErrorStack));
}
}
