fix #1928 bad auth response misses status code

Author: Mpdreamz

Diff for: src/Elasticsearch.Net/Transport/Pipeline/RequestPipeline.cs

@@ -465,8 +465,17 @@ public void BadResponse<TReturn>(ref ElasticsearchResponse<TReturn> response, Re
 
 			if (response == null)
 			{
-				response = new ResponseBuilder<TReturn>(data) { Exception = clientException }.ToResponse();
+				response = new ResponseBuilder<TReturn>(data)
+				{
+					StatusCode = callDetails?.HttpStatusCode,
+					Exception = clientException
+				}.ToResponse();
 			}
+			if (callDetails?.ResponseBodyInBytes != null && response.ResponseBodyInBytes == null)
+				response.ResponseBodyInBytes = callDetails.ResponseBodyInBytes;
+
+			if (callDetails?.ServerError != null && response.ServerError == null)
+				response.ServerError = callDetails.ServerError;
 
 			response.AuditTrail = this.AuditTrail;
 		}

Diff for: src/Tests/ClientConcepts/ConnectionPooling/Exceptions/UnrecoverableExceptions.doc.cs

@@ -89,6 +89,7 @@ [U] public async Task BadAuthenticationHtmlResponseIsIgnored()
 				(e) =>
 				{
 					e.FailureReason.Should().Be(PipelineFailure.BadAuthentication);
+					e.Response.HttpStatusCode.Should().Be(401);
 					e.Response.ResponseBodyInBytes.Should().BeNull();
 				}
 			);
@@ -112,6 +113,7 @@ [U] public async Task BadAuthenticationHtmlResponseStillExposedWhenUsingDisableD
 				(e) =>
 				{
 					e.FailureReason.Should().Be(PipelineFailure.BadAuthentication);
+					e.Response.HttpStatusCode.Should().Be(401);
 					e.Response.ResponseBodyInBytes.Should().NotBeNull();
 					var responseString = Encoding.UTF8.GetString(e.Response.ResponseBodyInBytes);
 					responseString.Should().Contain("nginx/");
@@ -142,6 +144,7 @@ [U] public async Task BadAuthOnGetClientCallDoesNotThrowSerializationException()
 				(e) =>
 				{
 					e.FailureReason.Should().Be(PipelineFailure.BadAuthentication);
+					e.Response.HttpStatusCode.Should().Be(401);
 					e.Response.ResponseBodyInBytes.Should().NotBeNull();
 					var responseString = Encoding.UTF8.GetString(e.Response.ResponseBodyInBytes);
 					responseString.Should().Contain("nginx/");

Diff for: src/Tests/Reproduce/GithubIssue1901.cs

@@ -30,12 +30,21 @@ private class Example
 <!-- a padding to disable MSIE and Chrome friendly error page -->
 <!-- a padding to disable MSIE and Chrome friendly error page -->";
 
-		[U]
-		public async Task BadAuthResponseDoesNotThrowExceptionWhenAttemptingToDeserializeResponse()
+		[U] public async Task BadAuthResponseDoesNotThrowExceptionWhenAttemptingToDeserializeResponse()
 		{
 			var client = TestClient.GetFixedReturnClient(ProxyAuthResponse, 401, contentType: "text/html", exception: new Exception("problem with the request as a result of 401"));
 			var source = await client.LowLevel.GetSourceAsync<Example>("examples", "example", "1");
 			source.Success.Should().BeFalse();
 		}
+
+		[U] public async Task BadAuthCarriesStatusCodeAndResponseBodyOverToResponse()
+		{
+			var client = TestClient.GetFixedReturnClient(ProxyAuthResponse, 401, contentType: "text/html", exception: new Exception("problem with the request as a result of 401"),
+				modifySettings: (s) => s.DisableDirectStreaming());
+			var response = await client.LowLevel.GetAsync<Example>("examples", "example", "1");
+			response.Success.Should().BeFalse();
+			response.ResponseBodyInBytes.Should().NotBeNullOrEmpty();
+			response.HttpStatusCode.Should().Be(401);
+		}
 	}
 }