Php test fest
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The document outlines the PHP Test Fest event, a global initiative designed to help developers write tests for PHP, scheduled from September to December 2017. It provides information on participants, the process of writing and submitting tests, and resources for finding untested code. The event emphasizes the simplicity of writing PHP tests and includes a demonstration of the testing process.
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- 1. PHP Test Fest Become a core PHP Developer
- 2. Who am I? Lead Developer and Solutions Architect for DynamicReservations Writing PHP web apps professionally for 12 yrs DDD and EventSourcing fanatic (I will talk for hours) Recovered Architecture Astronaut Co-Organiser of PHPDublin @barryosull [email protected] http://dev.to/barryosull http://barryosullivan.me
- 3. What is PHPTestFest? World wide event - Sep to Dec 2017 Write tests for the core of PHP Meeting Virtually and Physically PHPDublin is taking part! Day long event, help devs in Ireland write tests
- 4. Why am I qualified to give this talk? Because I am a core contributor to PHP
- 5. The file I committed
- 6. “Hey, I could do that!”
- 7. Writing tests in PHP So easy, even I could do it
- 8. Testing in PHP PHP tests are written as PHPT files These are just PHP files with extra bits No C code required! They’re super easy to read and write Any PHP developer can do it
- 9. Walk through an example --TEST -- Test description --FILE-- Test contents --EXPECT-- Expected output php-src/Zend/tests/nullable_types/string.phpt
- 10. Types of test 1. Basic 2. Error 3. Bug
- 11. Running your tests 1. Get your machine setup to run the tests a. Install docker on your machine b. Run the following command line curl -s https://raw.githubusercontent.com/herdphp/docker-phpqa/master/bin/installer.sh | bash 2. Fork the PHP-SRC from github 3. Clone to your local machine 4. Create your test file in the tests directory of the file/function you’re testing 5. Run your tests
- 12. Debugging failing tests Running a failing test creates the following file extensions with same name as the test .out - The actual output that the PHP code from the --FILE-- section generated .exp - The output we expected from the --EXPECT-- section .diff - A diff file with the actual output compared to the expected output .log - Both actual and expected output in one file .php - The --FILE-- section as a PHP file .sh - A bash script that runs the PHP file in the same environment that run-tests ran it
- 13. Example diff file php-src/Zend/tests/nullable_types/string.phpt php-src/Zend/tests/nullable_types/string.diff
- 14. Submitting your test 1. Push your changes to your fork on github 2. Create a PR between your branch and master 3. Wait … 4. Celebrate when it’s accepted!
- 15. Finding untested code The whole point of writing a test is to test untested code Go to http://gcov.php.net/ Look for something with low coverage Write a test for it!
- 16. The test I wrote You will not believe how simple it is
- 17. How I found curl_share_close needed to be tested
- 18. How I found curl_share_close needed to be tested
- 19. My simple test
- 20. What it looks like now
- 21. What it looks like now
- 22. Tips for navigating the C code Not as hard as it looks - PHP_FUNCTION marks the definition of a function - Look for untested function code - Goto the php.net definition for that function - Looks for example code - Use that as a template for your test
- 23. Writing a test from scratch Because a tutorial isn’t complete without a live demo! (one that will most likely break)
- 24. We missed an error case Missed Error Case
- 25. Live demo time
- 26. It’s that easy Today we showed 1. PHPT tests in PHP 2. How to find code to test 3. How to write the tests 4. How to submit tests 5. Wrote a test in ~5 minutes In other words:
- 27. PHP Test Fest Day long event in on a Saturday in September (details TBD). The Dublin PHPTestFest team https://groups.google.com/a/phpcommunity.org/group/testfest/ #phptestfest https://phptestfest.org/ Michael Flanagan @micflan Bruno Siqueira @brunoric Ken Guest @kenguest Barry O Sullivan @barryosull Joao Paulo V Martins @jpvm Mark Railton @railto
Editor's Notes
- #3: The “Why are you qualified to give this talk?” slide I work for DynamicReservations, a startup in the travel agent space. The problem I solve, day to day, is what is stopping growth? What is stopping us changing/growing our software, our team, our business (from a technical perspectice). I look at where we and where we want to go in a month/6months/2years, and figure out the steps we need to take so our architecture will help us, rather than hinder us.