public void type_attribute_type_by_category_get_list_returns_attribute_types_in_list() { List <AttributeType> newTypeList = new List <AttributeType>(); Mock <IBusinessEngineFactory> mockBusinessEngineFactory = new Mock <IBusinessEngineFactory>(); mockBusinessEngineFactory.Setup(mock => mock.GetBusinessEngine <IAttributeTypeBusinessEngine>() .GetTypesByCategory("Dummy")).Returns(newTypeList); TypeService service = new TypeService(mockBusinessEngineFactory.Object); List <AttributeType> lookup_ret_val = service.GetAttributeTypeListByCategory("Dummy"); Assert.IsTrue(lookup_ret_val is List <AttributeType>); }