Better support for HTTP/2 in SignalR .NET client (#42817)

Author: BrennanConroy

src/Shared/SignalR/FunctionalTestBase.cs

@@ -4,6 +4,7 @@
 using System;
 using System.Collections.Generic;
 using System.Threading.Tasks;
+using Microsoft.AspNetCore.Server.Kestrel.Core;
 using Microsoft.Extensions.Logging.Testing;
 
 namespace Microsoft.AspNetCore.SignalR.Tests;
@@ -36,9 +37,9 @@ private Func<WriteContext, bool> ResolveExpectedErrorsFilter(Func<WriteContext,
         };
     }
 
-    public Task<InProcessTestServer<T>> StartServer<T>(Func<WriteContext, bool> expectedErrorsFilter = null) where T : class
+    public Task<InProcessTestServer<T>> StartServer<T>(Func<WriteContext, bool> expectedErrorsFilter = null, Action<KestrelServerOptions> configureKestrelServerOptions = null) where T : class
     {
         var disposable = base.StartVerifiableLog(ResolveExpectedErrorsFilter(expectedErrorsFilter));
-        return InProcessTestServer<T>.StartServer(LoggerFactory, disposable);
+        return InProcessTestServer<T>.StartServer(LoggerFactory, configureKestrelServerOptions, disposable);
     }
 }

src/Shared/SignalR/InProcessTestServer.cs

@@ -11,6 +11,7 @@
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Hosting.Server;
 using Microsoft.AspNetCore.Hosting.Server.Features;
+using Microsoft.AspNetCore.Server.Kestrel.Core;
 using Microsoft.AspNetCore.Testing;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
@@ -38,6 +39,7 @@ public class InProcessTestServer<TStartup> : InProcessTestServer
     private IHostApplicationLifetime _lifetime;
     private readonly IDisposable _logToken;
     private readonly IDisposable _extraDisposable;
+    private readonly Action<KestrelServerOptions> _configureKestrelServerOptions;
 
     private readonly LogSinkProvider _logSinkProvider;
     private string _url;
@@ -52,19 +54,20 @@ internal override event Action<LogRecord> ServerLogged
 
     public override string Url => _url;
 
-    public static async Task<InProcessTestServer<TStartup>> StartServer(ILoggerFactory loggerFactory, IDisposable disposable = null)
+    public static async Task<InProcessTestServer<TStartup>> StartServer(ILoggerFactory loggerFactory, Action<KestrelServerOptions> configureKestrelServerOptions = null, IDisposable disposable = null)
     {
-        var server = new InProcessTestServer<TStartup>(loggerFactory, disposable);
+        var server = new InProcessTestServer<TStartup>(loggerFactory, configureKestrelServerOptions, disposable);
         await server.StartServerInner();
         return server;
     }
 
-    private InProcessTestServer() : this(loggerFactory: null, null)
+    private InProcessTestServer() : this(loggerFactory: null, null, null)
     {
     }
 
-    private InProcessTestServer(ILoggerFactory loggerFactory, IDisposable disposable)
+    private InProcessTestServer(ILoggerFactory loggerFactory, Action<KestrelServerOptions> configureKestrelServerOptions, IDisposable disposable)
     {
+        _configureKestrelServerOptions = configureKestrelServerOptions;
         _extraDisposable = disposable;
         _logSinkProvider = new LogSinkProvider();
 
@@ -99,7 +102,7 @@ private async Task StartServerInner()
                 .SetMinimumLevel(LogLevel.Trace)
                 .AddProvider(new ForwardingLoggerProvider(_loggerFactory)))
                 .UseStartup(typeof(TStartup))
-                .UseKestrel()
+                .UseKestrel(o => _configureKestrelServerOptions?.Invoke(o))
                 .UseUrls(url)
                 .UseContentRoot(Directory.GetCurrentDirectory());
             }).Build();