Fix #234

WIP Still needs tests

Author: halter73

src/Microsoft.AspNet.Server.Kestrel/Infrastructure/MemoryPoolIterator2.cs

@@ -442,6 +442,7 @@ public MemoryPoolIterator2 CopyTo(byte[] array, int offset, int count, out int a
                 else
                 {
                     Buffer.BlockCopy(block.Array, index, array, offset, following);
+                    offset += following;
                     remaining -= following;
                     block = block.Next;
                     index = block.Start;

test/Microsoft.AspNet.Server.Kestrel.FunctionalTests/RequestTests.cs

@@ -8,6 +8,8 @@
 using Microsoft.AspNet.Builder;
 using Microsoft.AspNet.Hosting;
 using Microsoft.AspNet.Http;
+using Microsoft.AspNet.Http.Features;
+using Microsoft.AspNet.Server.Kestrel.Filter;
 using Microsoft.Dnx.Runtime.Infrastructure;
 using Microsoft.Extensions.Configuration;
 using Xunit;
@@ -16,7 +18,7 @@ namespace Microsoft.AspNet.Server.Kestrel.FunctionalTests
 {
     public class RequestTests
     {
-        [Fact(Skip = "https://github.com/aspnet/KestrelHttpServer/issues/234")]
+        [Fact]
         public async Task LargeUpload()
         {
             var config = new ConfigurationBuilder()
@@ -30,6 +32,9 @@ public async Task LargeUpload()
             hostBuilder.UseServer("Microsoft.AspNet.Server.Kestrel");
             hostBuilder.UseStartup(app =>
             {
+                var info = app.ServerFeatures.Get<IKestrelServerInformation>();
+                info.ConnectionFilter = new NoOpConnectionFilter();
+
                 app.Run(async context =>
                 {
                     // Read the full request body