gistfile1.txt

   [Fact]
        public void HttpMessageContent_from_a_file()
        {
            
            var stream =
                this.GetType().Assembly.GetManifestResourceStream("ClientSamples.StaticContent.HttpResponseMessage.txt");
            
            var content = new StreamContent(stream);
            var contentType = new MediaTypeHeaderValue("application/http");
            contentType.Parameters.Add(new NameValueHeaderValue("msgtype", "response"));
            content.Headers.ContentType = contentType;
            
            
            var message = content.ReadAsHttpResponseMessageAsync().Result;

            Assert.NotNull(message);
        }