System.Net.Tests.HttpWebRequestTest.BeginGetRequestStream_CreatePostRequestThenCallTwice_ThrowsInvalidOperationException C# (CSharp) Method

        public void BeginGetRequestStream_CreatePostRequestThenCallTwice_ThrowsInvalidOperationException(Uri remoteServer)
        {
            _savedHttpWebRequest = HttpWebRequest.CreateHttp(remoteServer);
            _savedHttpWebRequest.Method = "POST";

            IAsyncResult asyncResult = _savedHttpWebRequest.BeginGetRequestStream(null, null);
            Assert.Throws<InvalidOperationException>(() =>
            {
                _savedHttpWebRequest.BeginGetRequestStream(null, null);
            });
        }