public void GetFactoryAdapter_uses_constructor_selector(ISelectsConstructor ctorSelector, ResolutionRequest request) { // Arrange var type = typeof(SampleServiceWithConstructorParameters); var sut = new TypeRegistration(type, ctorSelector); var ctor = type.GetConstructor(new [] { typeof(string), typeof(string) }); Mock.Get(ctorSelector) .Setup(x => x.SelectConstructor(type)) .Returns(ctor); // Act var result = sut.GetFactoryAdapter(request); // Assert Assert.That(result, Is.Not.Null); Assert.That(result, Is.InstanceOf <ConstructorFactory>()); var ctorFactory = (ConstructorFactory)result; Assert.That(ctorFactory.Constructor, Is.SameAs(ctor)); }