How to fake a network error which is represented by an Exception thrown? about moq.contrib.httpclient HOT 3 CLOSED

Hi! You can use the standard Moq Throws() to cause the handler to throw an exception:

var handler = new Mock<HttpMessageHandler>();
var client = handler.CreateClient();

handler.SetupAnyRequest()
    .Throws<HttpRequestException>();

Func<Task> attempt = () => client.GetAsync("http://example.com");
await attempt.Should().ThrowAsync<HttpRequestException>();

Or if you want to get fancy:

var inner = new System.Net.Sockets.SocketException((int)System.Net.Sockets.SocketError.ConnectionRefused);
handler.SetupAnyRequest()
    .Throws(new HttpRequestException(inner.Message, inner));

from moq.contrib.httpclient.

🤔 hmm.. i tried to do that but kept getting something like "no response was returned" or something .. hmm ...

from moq.contrib.httpclient.

Expected System.Net.Http.HttpRequestException, but found System.InvalidOperationException with message "Handler did not return a response message." ?

Try new Mock<HttpMessageHandler>(MockBehavior.Strict); and see if you get a MockException "All invocations on the mock must have a corresponding setup". Might just not be matching the setup.

from moq.contrib.httpclient.