Fixed fallout from adding DisposeAsync to ConnectionContext

src/SignalR/clients/csharp/Client/test/FunctionalTests/HubConnectionTests.cs

@@ -59,7 +59,7 @@ public class HubConnectionTests : FunctionalTestBase
 
             var delegateConnectionFactory = new DelegateConnectionFactory(
                 GetHttpConnectionFactory(url, loggerFactory, path, transportType ?? HttpTransportType.LongPolling | HttpTransportType.WebSockets | HttpTransportType.ServerSentEvents),
-                connection => ((HttpConnection)connection).DisposeAsync());
+                connection => ((HttpConnection)connection).DisposeAsync().AsTask());
             hubConnectionBuilder.Services.AddSingleton<IConnectionFactory>(delegateConnectionFactory);
 
             return hubConnectionBuilder.Build();

src/SignalR/clients/csharp/Client/test/UnitTests/HubConnectionTests.Helpers.cs

@@ -16,7 +16,7 @@ private static HubConnection CreateHubConnection(TestConnection connection, IHub
 
             var delegateConnectionFactory = new DelegateConnectionFactory(
                 connection.StartAsync,
-                c => ((TestConnection)c).DisposeAsync());
+                c => c.DisposeAsync().AsTask());
 
             builder.Services.AddSingleton<IConnectionFactory>(delegateConnectionFactory);
 

src/SignalR/clients/csharp/Client/test/UnitTests/HubConnectionTests.cs

@@ -63,7 +63,7 @@ public async Task ClosedEventRaisedWhenTheClientIsStopped()
 
             var delegateConnectionFactory = new DelegateConnectionFactory(
                 format => new TestConnection().StartAsync(format),
-                connection => ((TestConnection)connection).DisposeAsync());
+                connection => ((TestConnection)connection).DisposeAsync().AsTask());
             builder.Services.AddSingleton<IConnectionFactory>(delegateConnectionFactory);
 
             var hubConnection = builder.Build();

src/SignalR/clients/csharp/Client/test/UnitTests/TestConnection.cs

@@ -60,7 +60,7 @@ public TestConnection(Func<Task> onStart = null, Func<Task> onDispose = null, bo
             null);
         }
 
-        public Task DisposeAsync() => DisposeCoreAsync();
+        public override ValueTask DisposeAsync() => DisposeCoreAsync();
 
         public async Task<ConnectionContext> StartAsync(TransferFormat transferFormat = TransferFormat.Binary)
         {
@@ -195,7 +195,7 @@ public void CompleteFromTransport(Exception ex = null)
             Application.Output.Complete(ex);
         }
 
-        private async Task DisposeCoreAsync(Exception ex = null)
+        private async ValueTask DisposeCoreAsync(Exception ex = null)
         {
             Interlocked.Increment(ref _disposeCount);
             _disposed.TrySetResult(null);

src/SignalR/clients/csharp/Http.Connections.Client/ref/Microsoft.AspNetCore.Http.Connections.Client.netcoreapp3.0.cs

@@ -15,7 +15,7 @@ public partial class HttpConnection : Microsoft.AspNetCore.Connections.Connectio
         bool Microsoft.AspNetCore.Connections.Features.IConnectionInherentKeepAliveFeature.HasInherentKeepAlive { get { throw null; } }
         public override System.IO.Pipelines.IDuplexPipe Transport { get { throw null; } set { } }
         [System.Diagnostics.DebuggerStepThroughAttribute]
-        public System.Threading.Tasks.Task DisposeAsync() { throw null; }
+        public override System.Threading.Tasks.ValueTask DisposeAsync() { throw null; }
         [System.Diagnostics.DebuggerStepThroughAttribute]
         public System.Threading.Tasks.Task StartAsync(Microsoft.AspNetCore.Connections.TransferFormat transferFormat, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
         public System.Threading.Tasks.Task StartAsync(System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }

src/SignalR/clients/csharp/Http.Connections.Client/ref/Microsoft.AspNetCore.Http.Connections.Client.netstandard2.0.cs

@@ -15,7 +15,7 @@ public partial class HttpConnection : Microsoft.AspNetCore.Connections.Connectio
         bool Microsoft.AspNetCore.Connections.Features.IConnectionInherentKeepAliveFeature.HasInherentKeepAlive { get { throw null; } }
         public override System.IO.Pipelines.IDuplexPipe Transport { get { throw null; } set { } }
         [System.Diagnostics.DebuggerStepThroughAttribute]
-        public System.Threading.Tasks.Task DisposeAsync() { throw null; }
+        public override System.Threading.Tasks.ValueTask DisposeAsync() { throw null; }
         [System.Diagnostics.DebuggerStepThroughAttribute]
         public System.Threading.Tasks.Task StartAsync(Microsoft.AspNetCore.Connections.TransferFormat transferFormat, System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }
         public System.Threading.Tasks.Task StartAsync(System.Threading.CancellationToken cancellationToken = default(System.Threading.CancellationToken)) { throw null; }

src/SignalR/common/testassets/Tests.Utils/TaskExtensions.cs

@@ -17,6 +17,16 @@ static class TaskExtensions
     {
         private const int DefaultTimeout = 30 * 1000;
 
+        public static Task OrTimeout(this ValueTask task, int milliseconds = DefaultTimeout, [CallerMemberName] string memberName = null, [CallerFilePath] string filePath = null, [CallerLineNumber] int? lineNumber = null)
+        {
+            return OrTimeout(task, new TimeSpan(0, 0, 0, 0, milliseconds), memberName, filePath, lineNumber);
+        }
+
+        public static Task OrTimeout(this ValueTask task, TimeSpan timeout, [CallerMemberName] string memberName = null, [CallerFilePath] string filePath = null, [CallerLineNumber] int? lineNumber = null)
+        {
+            return task.AsTask().TimeoutAfter(timeout, filePath, lineNumber ?? 0);
+        }
+
         public static Task OrTimeout(this Task task, int milliseconds = DefaultTimeout, [CallerMemberName] string memberName = null, [CallerFilePath] string filePath = null, [CallerLineNumber] int? lineNumber = null)
         {
             return OrTimeout(task, new TimeSpan(0, 0, 0, 0, milliseconds), memberName, filePath, lineNumber);

src/SignalR/samples/ClientSample/Tcp/TcpConnection.cs

@@ -43,14 +43,14 @@ public TcpConnection(EndPoint endPoint)
         // We claim to have inherent keep-alive so the client doesn't kill the connection when it hasn't seen ping frames.
         public bool HasInherentKeepAlive { get; } = true;
 
-        public Task DisposeAsync()
+        public override ValueTask DisposeAsync()
         {
             Transport?.Output.Complete();
             Transport?.Input.Complete();
 
             _socket?.Dispose();
 
-            return Task.CompletedTask;
+            return default;
         }
 
         public async Task<ConnectionContext> StartAsync()

src/SignalR/samples/ClientSample/Tcp/TcpHubConnectionBuilderExtensions.cs

@@ -54,7 +54,7 @@ public Task<ConnectionContext> ConnectAsync(TransferFormat transferFormat, Cance
 
             public Task DisposeAsync(ConnectionContext connection)
             {
-                return ((TcpConnection)connection).DisposeAsync();
+                return connection.DisposeAsync().AsTask();
             }
         }
     }