Take a look at the lime plugin - which extends lime - it appears to support auto-creation of mock objects.
http://webmozarts.com/2009/06/30/easy-unit-testing/ On Thu, 22 Oct 2009 21:32:13 +0200, Henning Glatter-Gotz <[email protected]> wrote: > Thomas, > > > Thanks for your reply. > > Not sure if that would be practical: > > > Class MyClass > > { > > : > > : > > public function doSomething($parameters) > > { > > : > > //do a bunch of processing > > : > > $db = new MyModel(); > > : > > // set model properties > > : > > $db->save(); > > : > > return some_status; > > } > > : > > } > > > I would like to unit test the method doSomething. Problem is when > running in production mode I want it to construct an object of type > MyModel and actually save the data to the database. > > However, when running a unit test, I need the line > > > $db = new MyModel(); > > > to be > > > $db = new MyModelFake(); > > > I see two ways around this: > > > 1. Pass in the model objects to be used either as a parameter to > the method or in the constructor. That way I can pass in the real thing > in production and a fake one in test mode. The problem with this is, > that if you have a lot of dependencies you end up passing in a tone of > objects. What if you need 3 instances of the same object? Just does not > seem very “clean”. > > > > 2. Use a factory: > $db = ModelFactory->getMyModel(); > then you could just pass in a reference to the factory and when you > construct the factory you tell it whether to construct real model > objects or fake ones. > > > PHPUnit has a really cool feature for this, it will create Mock objects > for you based on the real object, so there is not even any hand coding > necessary. Does Lime have something like this? > > > Thanks > > Henning > > > From: [email protected] > [mailto:[email protected]] On Behalf Of Thomas Rabaix > Sent: Thursday, October 22, 2009 3:05 PM > To: [email protected] > Subject: [symfony-users] Re: Unit testing with fake model classes > > > You can open a transaction and just rollback at the end. > > On Thu, Oct 22, 2009 at 8:58 PM, Henning Glatter-Gotz > <[email protected]> wrote: > > Hi, > > > I have a class I would like to unit/functional test that uses several > propel model classes that are used to write to the db (in this scenario > I am not getting any data out of the db). At this point I am not worried > about checking if data actually ends up in the db, I will rely on propel > to do its job. > > > So what I really want is the ability to inject fake model objects that > do not actually write to the database when I am running a unit test. The > fake model could be a class derived from the actual model where the save > method is overridden and simply returns 0 (or whatever other value I > want) and does nothing else. > > > The problem I am having is how to go about injecting the fakes. I don’t > really want to have to pass a reference of all model objects into my > object because I sometimes need multiple instances of the same class. So > what I would need is for the class I am testing to know which model > class to instantiate (MyModelReal or MyModelFake). > > To follow a good design principle of decoupling dependencies it would > probably be a good idea to not even have the model object construction > inside my object in the first place, but rather use a factory that knows > how to construct model objects and is environment aware (if running in > test it would construct fakes and otherwise the ‘real’ models). > > > I know of http://components.symfony-project.org/dependency-injection/. > It is not part of sf 1.2.x. Has anyone used this in sf 1.2.x? > > Does anyone have other suggestions on how to implement something like > this? > > > Thanks > > Henning > > > > > > > -- Using Opera's revolutionary e-mail client: http://www.opera.com/mail/ --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "symfony users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/symfony-users?hl=en -~----------~----~----~----~------~----~------~--~---
