Failing test that burden is not added to an unrelated object

src/Castle.Windsor.Tests/Facilities/TypedFactory/BurdenAddedToUnrelatedObjectTestCase.cs

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+// Copyright 2018 Castle Project - http://www.castleproject.org/
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+namespace CastleTests.Facilities.TypedFactory
+{
+	using System;
+
+	using Castle.Facilities.TypedFactory;
+	using Castle.MicroKernel.Registration;
+
+	using NUnit.Framework;
+
+	public sealed class BurdenAddedToUnrelatedObjectTestCase : AbstractContainerTestCase
+	{
+		protected override void AfterContainerCreated()
+		{
+			Container.AddFacility<TypedFactoryFacility>();
+		}
+
+		[Test]
+		public void Object_resolved_from_factory_is_not_added_as_burden_of_object_being_created()
+		{
+			Container.Register(
+				Component.For(typeof(IFactory<>)).AsFactory(),
+				Component.For<Foo>().LifeStyle.Transient,
+				Component.For<LongLivedService>().LifeStyle.Singleton,
+				Component.For<ShortLivedViewModel>().LifeStyle.Transient);
+
+			var longLivedService = Container.Resolve<LongLivedService>();
+			var shortLivedViewModel = Container.Resolve<ShortLivedViewModel>();
+
+			var prematureDisposalHandler = new EventHandler((s, e) =>
+				Assert.Fail("Long-lived service’s connection was disposed when short-lived view model was released."));
+
+			longLivedService.SqlConnection.Disposed += prematureDisposalHandler;
+			Container.Release(shortLivedViewModel);
+			longLivedService.SqlConnection.Disposed -= prematureDisposalHandler;
+
+			Container.Release(longLivedService);
+		}
+
+		public sealed class Foo : IDisposable
+		{
+			public event EventHandler Disposed;
+
+			public void Dispose() => Disposed?.Invoke(this, EventArgs.Empty);
+		}
+
+		public interface IFactory<T>
+		{
+			T Resolve();
+			void Release(T instance);
+		}
+
+		public sealed class LongLivedService
+		{
+			public IFactory<Foo> FooFactory { get; }
+
+			public Foo SqlConnection { get; private set; }
+
+			public LongLivedService(IFactory<Foo> fooFactory)
+			{
+				FooFactory = fooFactory;
+			}
+
+			public void StartSomething()
+			{
+				SqlConnection = FooFactory.Resolve();
+			}
+
+			public void Dispose()
+			{
+				FooFactory.Release(SqlConnection);
+			}
+		}
+
+		public sealed class ShortLivedViewModel
+		{
+			public IFactory<Foo> FooFactory { get; }
+			public LongLivedService LongLivedService { get; }
+
+			public ShortLivedViewModel(IFactory<Foo> fooFactory, LongLivedService longLivedService)
+			{
+				FooFactory = fooFactory;
+				LongLivedService = longLivedService;
+				longLivedService.StartSomething();
+			}
+		}
+	}
+}