public void Instantiate_FakeConnectionString_FakeExecutionEngine() { var localServiceLocator = new ServiceLocator(); var query = Mock.Of <IQuery>(x => x.ConnectionString == "fake://MyConnectionString"); var sessionFactory = localServiceLocator.GetSessionFactory(); sessionFactory.RegisterFactories(new[] { typeof(FakeSessionFactory) }); var commandFactory = localServiceLocator.GetCommandFactory(); commandFactory.RegisterFactories(new[] { typeof(FakeCommandFactory) }); var factory = new ExecutionEngineFactory(sessionFactory, commandFactory); factory.RegisterEngines(new[] { typeof(FakeExecutionEngine) }); var engine = factory.Instantiate(query); Assert.IsInstanceOf <FakeExecutionEngine>(engine); }