gistfile1.cs

namespace Domain.Tests
{
    using Castle.MicroKernel.Registration;
    using Castle.Windsor;
    using Xunit;

    public class ChildContainerResolveTests
    {
        public interface IService1 { }

        public interface IService2 { }
        
        public interface IService3 { }

        public class Service1 : IService1 { }
        
        public class Service1Consumer : IService2
        {
            public Service1Consumer(IService1 service1)
            {
            }
        }
        
        public class Service2Consumer : IService3
        {
            public Service2Consumer(IService2 service2)
            {
            }
        }

        [Fact]
        public void ResolveComponentRegisteredInParentWhichDependendOnComponentRegisteredInChild()
        {
            using (var parent = new WindsorContainer())
            using (var child = new WindsorContainer())
            {
                child.Register(Component.For<IService1>().ImplementedBy<Service1>());
                parent.AddChildContainer(child);

                parent.Register(//Component.For<IService1>(),
                                Component.For<IService2>().ImplementedBy<Service1Consumer>());

                var consumer = child.Resolve<IService2>();
                Assert.NotNull(consumer);
            }
        }

        [Fact]
        public void ResolveRegisteredInChildWithDependencyOnComponentRegisteredInParentWithDependencyOnComponentRegisteredInChild()
        {
            using (var parent = new WindsorContainer())
            using (var child = new WindsorContainer())
            {
                parent.AddChildContainer(child);
                
                child.Register(Component.For<IService1>().ImplementedBy<Service1>(),
                               Component.For<IService3>().ImplementedBy<Service2Consumer>());

                parent.Register(//Component.For<IService1>(),
                                Component.For<IService2>().ImplementedBy<Service1Consumer>());

                var consumer = child.Resolve<IService3>();
                Assert.NotNull(consumer);
            }
        }
    }
}