Test for castleproject#646: resolve from thread pool causes null refe…

…rence in scope

src/Castle.Windsor.Extensions.DependencyInjection.Tests/ResolveFromThreadpoolUnsafe.cs

@@ -0,0 +1,56 @@
+using Castle.MicroKernel.Registration;
+using Castle.Windsor.Extensions.DependencyInjection.Tests.Components;
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Threading;
+using System.Threading.Tasks;
+using Xunit;
+
+namespace Castle.Windsor.Extensions.DependencyInjection.Tests {
+ public class ResolveFromThreadpoolUnsafe {
+ [Fact]
+ public async Task Can_Resolve_From_ServiceProvider() {
+
+ var serviceProvider = new ServiceCollection();
+ var container = new WindsorContainer();
+ var f = new WindsorServiceProviderFactory(container);
+ f.CreateBuilder(serviceProvider);
+
+ container.Register(
+ Component.For<IUserService>().ImplementedBy<UserService>()
+ );
+
+ IServiceProvider sp = f.CreateServiceProvider(container);
+
+ var actualUserService = sp.GetService<IUserService>();
+ Assert.NotNull(actualUserService);
+
+ /*
+ ThreadPool.UnsafeQueueUserWorkItem(state => {
+ // resolving using castle (without scopes) works
+ var actualUserService = container.Resolve<IUserService>(nameof(UserService));
+ Assert.NotNull(actualUserService);
+ }, null);
+ */
+
+ TaskCompletionSource<IUserService> tcs = new TaskCompletionSource<IUserService>();
+
+ ThreadPool.UnsafeQueueUserWorkItem(state => {
+ try {
+ var actualUserService = sp.GetService<IUserService>();
+ Assert.NotNull(actualUserService);
+ }
+ catch (Exception ex) {
+ tcs.SetException(ex);
+ return;
+ }
+ tcs.SetResult(actualUserService);
+ }, null);
+
+ // Wait for the work item to complete.
+ var task = tcs.Task;
+ IUserService result = await task;
+ Assert.NotNull(result);
+ }
+ }
+}