public void ShouldForwardResolveToInnerContainerWhenKeyIsUsed()
        {
            object myInstance = new object();

            CompositionContainer compositionContainer = new CompositionContainer();
            compositionContainer.ComposeExportedValue<object>("key", myInstance);

            IServiceLocator containerAdapter = new MefServiceLocatorAdapter(compositionContainer);

            Assert.AreSame(myInstance, containerAdapter.GetInstance(typeof(object), "key"));
        }
        public void ShouldForwardResolveToInnerContainerWhenKeyIsUsed()
        {
            object myInstance = new object();

            ContainerConfiguration config = new ContainerConfiguration();
            config.WithExport<object>(myInstance, "key");
            MefServiceLocatorAdapter.CompositionContainer = config.CreateContainer();

            IServiceLocator containerAdapter = new MefServiceLocatorAdapter();

            Assert.AreSame(myInstance, containerAdapter.GetInstance(typeof(object), "key"));
        }
        public void ShouldThrowActivationExceptionWhenMoreThanOneInstanceAvailble()
        {
            object myInstance = new object();
            object myInstance2 = new object();

            CompositionContainer compositionContainer = new CompositionContainer();
            compositionContainer.ComposeExportedValue<object>(myInstance);
            compositionContainer.ComposeExportedValue<object>(myInstance2);

            IServiceLocator containerAdapter = new MefServiceLocatorAdapter(compositionContainer);
            try
            {
                containerAdapter.GetInstance(typeof (object));
                Assert.Fail("Expected exception not thrown.");
            }
            catch(ActivationException ex)
            {
                Assert.AreEqual(typeof(InvalidOperationException), ex.InnerException.GetType());
                Assert.IsTrue(ex.InnerException.Message.Contains("Sequence contains more than one element"));
            }
        }
        public void ShouldThrowActivationExceptionWhenMoreThanOneInstanceAvailble()
        {
            object myInstance = new object();
            object myInstance2 = new object();

            ContainerConfiguration config = new ContainerConfiguration();
            config.WithExport<object>(myInstance);
            config.WithExport<object>(myInstance2);
            MefServiceLocatorAdapter.CompositionContainer = config.CreateContainer();

            IServiceLocator containerAdapter = new MefServiceLocatorAdapter();
            Assert.ThrowsException<ActivationException>(() => containerAdapter.GetInstance(typeof(object)), "Sequence contains more than one element");
        }