MockHttpMessageHandler

MockHttpMessageHandler.cs

using System.Net.Http;
using System.Threading;
using System.Threading.Tasks;

namespace Namespace123
{
  public class MockHttpMessageHandler : HttpMessageHandler
  {
    private readonly HttpResponseMessage? message;

    public MockHttpMessageHandler(HttpResponseMessage? message = null)
    {
      this.message = message;
    }

    protected override Task<HttpResponseMessage> SendAsync(
      HttpRequestMessage request,
      CancellationToken cancellationToken)
    {
      return SendAsync(request);
    }

    public virtual Task<HttpResponseMessage> SendAsync(HttpRequestMessage request)
    {
      return Task.FromResult(
        message ??
        new HttpResponseMessage(System.Net.HttpStatusCode.OK)
        {
          RequestMessage = request
        });
    }
  }
}