CHANGELOG.md

@@ -35,12 +35,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - X10D: Removed `IEnumerable<T>.ConcatOne` - this functionality already exists with `Append`.
 
-## [3.3.1] - 2023-08-21
-
-### Fixed
-
-- X10D.Hosting: Fixed `AddHostedSingleton` not accepting an interface as the service type.
-
 ## [3.3.0] - 2023-08-21
 
 ### Added
@@ -619,8 +613,7 @@ please [open an issue](https://github.com/oliverbooth/X10D/issues)!
 
 Earlier versions of this package are undocumented and unlisted from package results.
 
-[unreleased]: https://github.com/oliverbooth/X10D/compare/v3.3.1...main
+[unreleased]: https://github.com/oliverbooth/X10D/compare/v3.3.0...main
-[3.3.1]: https://github.com/oliverbooth/X10D/releases/tag/v3.3.1
 [3.3.0]: https://github.com/oliverbooth/X10D/releases/tag/v3.3.0
 [3.2.2]: https://github.com/oliverbooth/X10D/releases/tag/v3.2.2
 [3.2.0]: https://github.com/oliverbooth/X10D/releases/tag/v3.2.0

X10D.Hosting/src/DependencyInjection/ServiceCollectionExtensions.cs

@@ -29,12 +29,11 @@ public static class ServiceCollectionExtensions
     /// <typeparam name="TImplementation">The type of the implementation to use.</typeparam>
     /// <returns>A reference to this instance after the operation has completed.</returns>
     public static IServiceCollection AddHostedSingleton<TService, TImplementation>(this IServiceCollection services)
-        where TService : class
+        where TService : class, IHostedService
-        where TImplementation : class, TService, IHostedService
+        where TImplementation : class, TService
     {
         services.AddSingleton<TService, TImplementation>();
-        return services.AddSingleton<IHostedService, TImplementation>(provider =>
+        return services.AddSingleton<IHostedService, TService>(provider => provider.GetRequiredService<TService>());
-            (TImplementation)provider.GetRequiredService<TService>());
     }
 
     /// <summary>

X10D.Tests/src/Hosting/ServiceCollectionTests.cs

@@ -29,27 +29,6 @@ public class ServiceCollectionTests
         });
     }
 
-    [Test]
-    public void AddHostedSingleton_ShouldRegisterServiceAsSingletonAndAsHostedService_GivenServiceAndImplTypes()
-    {
-        var services = new ServiceCollection();
-
-        services.AddHostedSingleton<ITestService, TestService>();
-
-        var serviceProvider = services.BuildServiceProvider();
-        var service = serviceProvider.GetService<ITestService>();
-        var hostedService = serviceProvider.GetService<IHostedService>();
-
-        Assert.Multiple(() =>
-        {
-            Assert.That(service, Is.Not.Null);
-            Assert.That(hostedService, Is.Not.Null);
-            Assert.IsAssignableFrom<TestService>(service);
-            Assert.IsAssignableFrom<TestService>(hostedService);
-            Assert.That(hostedService, Is.SameAs(service));
-        });
-    }
-
     [Test]
     public void AddHostedSingleton_ShouldRegisterServiceTypeAsSingletonAndAsHostedService()
     {
@@ -71,38 +50,8 @@ public class ServiceCollectionTests
         });
     }
 
-    [Test]
+    private sealed class TestService : IHostedService
-    public void AddHostedSingleton_ShouldRegisterServiceTypeAsSingletonAndAsHostedService_GivenServiceAndImplTypes()
     {
-        var services = new ServiceCollection();
-
-        services.AddHostedSingleton(typeof(ITestService), typeof(TestService));
-
-        var serviceProvider = services.BuildServiceProvider();
-        var service = serviceProvider.GetService<ITestService>();
-        var hostedService = serviceProvider.GetService<IHostedService>();
-
-        Assert.Multiple(() =>
-        {
-            Assert.That(service, Is.Not.Null);
-            Assert.That(hostedService, Is.Not.Null);
-            Assert.IsAssignableFrom<TestService>(service);
-            Assert.IsAssignableFrom<TestService>(hostedService);
-            Assert.That(hostedService, Is.SameAs(service));
-        });
-    }
-
-    private interface ITestService
-    {
-        void Foo();
-    }
-
-    private sealed class TestService : ITestService, IHostedService
-    {
-        public void Foo()
-        {
-        }
-
         public Task StartAsync(CancellationToken cancellationToken)
         {
             return Task.CompletedTask;