The world has a million PHP frameworks, and now that I need one, there is not a single one that fulfils my requirements.
SemanticScuttle, my pet project, is a good ol' PHP project with several dozen files in the document root and which do a single task: login.php, register.php, admin.php, profile.php, edit.php - you name it.
While it works and Rasmus likes such code , does it make unit testing slow because I have to do real HTTP requests, and I cannot really re-use the action code in other situations. The proper solution is to use a framework/library for MVC and take the C from it. Alternatively, I could write it myself, debug it myself, maintain it myself and have all the hassle. But as I wrote, there are a million frameworks out there to use.
- PSR-0 compatible
- installable from a PEAR channel
goodsupport for unit testing
- Controller component needs to be usable standalone - without the db abstraction, templating and the things that the fat frameworks all provide
- Needs to fit into the existing project file structure since I won't change it just because a component wants it this and that way.
Unit testing support
This is a thing that's very important for me. I want to unit test everything in the application, and I expect that a framework does as much work for me as possible.
Let's look at the tasks when testing a web application:
- check if the output is ok (well-formed/valid XHTML, JSON, XML)
- verify that the correct HTTP status codes are sent
- same for the content type and encoding
- user-dependent pages with a login
- check the behavior of the app with different GET, POST, HTTP header and cookie input
Those testing requirements are the same that most other web apps also have, thus the framework/controller library needs to assist me writing such standard tests.
I want predefined assertions for common uses, i.e. assertHttpResponseCode(200). Using assertEquals($res->getCode(), 200) is of course possible but I don't have a nice error message which I need when debugging the code half a year later, and it's just too much code to write when I have to do it again and again.
And no, I don't want to write those assertions myself. That's the framework's task!
The best tool for the task?
I've spent quite some time analyzing the existing frameworks: Zend Framework, Lithium, Yii, Kohona, CodeIgniter, Symfony2.
Zend has a nice ControllerTestCase class with dozens of the assertions I long for. Unfortunately, it's a big fat pack from which I can't pick the controller component only and automatically keep that up to date. Downloading the 6.x MiB minimal zip file after each release and copying the required files does not count.
All others don't have advanced unit testing support. Most don't have a PEAR channel (Symfony2 is the notable exception here) and the devs don't feel that it's necessary. Looks like they never worked professionally on a app that's supposed to run several years and needs security and feature updates without hassle.
It seems to me that everyone wrote an own framework because he wasn't satisified with others but failed to make it awesome and finish it to 100%.
Do you have an answer or suggestion? Then please comment on the stackoverflow question or send a mail.