Tag Archives: unit tests

The Grumpy Programmer’s Book at PHPNW12

I’ve got some good news for the people that already have decided to attend my tutorial “Test your code like a Pro – PHPUnit in practise” at PHPNW12 conference in ManchesterChris Hartjes has kindly offered to give away 3 digital copies of his famous “Guide To Building Testable Applications in PHP” book to attendees of my tutorial! I strongly believe this will nicely compliment the tutorial itself and give the people such a boost in their further adventures with testing. You can learn more about the book itself at http://www.grumpy-testing.com/.

Your still have a chance to get a ticket to my tutorial on 5th October and only one more reason to buy it! For these who already know PHPUnit and already have started they journey through unit testing PHP code I strongly recommend buying the book and reading it. There is plenty of hints and tips that will help you understand how to write unit testable code and increase its quality!

Big thanks to Chris again and I hope to see you all in Manchester soon!

Test your code like a pro – PHPUnit in practice at PHPNW12

PHP NW12 conference is nearly upon us, so I guess it’s about time to tell you more about the workshop that I will be having there on the 5th October morning. I wanted to do that for a very long time, especially that I am a big fan of quality assurance in software engineering. You can read the official abstract at the conference homepage, but here I am gonna tell you a little bit more about what we gonna do during the 3 hour tutorial.

My main focus will be to teach you and lead you through main concepts of unit testing PHP code. It’s a beginners course, so we will go though all the basics of organising your test suite, understanding the benefits of unit tests and making you feel comfortable and confident with the code you write. We’ll do it all big band TDD style – so we will write the tests first and implement the functionality afterwards. It’s very important to get this right and to set up the mindset from the very beginning.

PHPUnit is de-facto a standard in PHP world, so it is also important that you are aware of the main features of the tool. We’ll go through the set up, configuration and options that are the most useful at the beginning – so you can get the most out of the tool. The concepts that I am gonna go through will include:

  • working with typical test suites
  • basic assertions – strings, integers, booleans, object
  • PHPUnit from the command line
  • using phpunit.xml configuration file
  • testing exceptions
  • testing PHP errors, warnings and notices
  • asserting output
  • data driving your tests by using data providers
  • generating code coverage report

If you have never had a chance to unit test your code, but you’d like to try now, it’s the best time to get started. I will do my best to make you feel confident and to help you start your own Journey Towards Continuous Integration, but what you have to do is to go to your boss and convince him to buy you a ticket to my tutorial ( and the conference). There is still plenty of time and there are still some tickets left.

No matter whether you have already bought a ticker or you’re thinking about right now, if there is anything specific you you want me to go through during the tutorial please let me know. I’ll do my best to fit that in. We can also change the course of the tutorial if the group will prefer to touch on some slightly different subjects of unit testing – I am open for suggestions. And I will be accessible after the tutorial too, for any questions, help or even quick hacks. You will even get more chances to speak to me over the next 2 days, during the main conference days – on the 6th and 7th October.

It’s a lot of things to go through so it is very important that you come prepared and focused on the day. We only have 3 hours and I’d like to avoid situation where the hardware/operational issues will stand in our way. While I will try to help everybody out if there are any issues I will encourage you to install PHPUnit on your laptops before, so it is working without a problem. I want to focus on writing the tests and using PHPUnit, not on trying to make PHP itself working on your machines.  I strongly recommend using a non-Windows system. Windows has been proved to be very unreliable if it comes to setting up PHP and PEAR. It does work, but it requires some strong skills and patience. So you’d rather install ubuntu or debian, as this is an environment that everything just works out of the box.

During the course of the next 2 days I will post more detailed instructions about how you can prepare your laptops to make sure you can run PHPUnit on them without any issues, so watch this space closely.

I hope to see you at my tutorial in about 3 weeks!

PHPUnit assertion gotcha

A recent discovery. If you found yourself upgrading from PHPUnit 3.5.x to PHPUnit 3.6.x be aware of a subtle change. assertEquals() and I guess all related assertions will behave a bit differently after the upgrade. When you assert 2 values and one of them is an object with defined __toString() function PHPUnit 3.5.x will fail the test, while PHPUnit 3.6 will happily pass it (by I am guessing converting the object to string). See an example on gisthub for more details:

$ phpunit testCaseTest.php
PHPUnit 3.5.15 by Sebastian Bergmann.
F.
Time: 1 second, Memory: 4.50Mb
There was 1 failure:
1) TestCase::testAssertStringWithObject
Failed asserting that
myClass Object
(
)
matches expected .
/private/tmp/Testing/testCaseTest.php:16
FAILURES!
Tests: 2, Assertions: 2, Failures: 1.
$ phpunit testCaseTest.php
PHPUnit 3.6.10 by Sebastian Bergmann.
..
Time: 1 second, Memory: 5.50Mb
OK (2 tests, 2 assertions)