Embrace Your Inner Grumpy: Metatesting in 2016

Presentation I gave at GPUG on January 27, 2016

Transcript

1. Embrace Your Inner Grumpy Metatesting in 2016 Chris Hartjes GPUG - January 27, 2016
2. A little something about me • PHP user since 1998 • testing advocate since 2004 • writer of PHP books at http://grumpy-learning.com • working at Mozilla as QA engineer in Cloud Services • organize TrueNorthPHP • /dev/hell podcast • OpenCFP head honcho
3. What is Metatesting?
4. It starts with… Magic: The Gathering?
5. Mature Testing Tools Are Available
6. Mature Testing Tools • PHPUnit — http://phpunit.de • Behat — http://behat.org • PHPSpec — http://www.phpspec • Codeception — http://codeception.com
7. Mature Testing Tools • Don’t reinvent mature tools • Extend them for your own needs
8. Open Source Drives Acceptance
9. Open Source • Every popular framework has extensive test suites • Lack of tests speaks volumes about intent • Great entry point into contributing
10. Proof Exists To Back The Promises
11. Proof Exists • Study commissioned by IBM and Microsoft • White paper -> http://research.microsoft.com/en- us/groups/ese/nagappan_tdd.pdf
12. Proof Exists • TDD clearly takes more time… • …but results in fewer bugs in production
13. “Hey boss, for just one extra day per week on this project we can get up to 90% fewer bugs making it into production”
14. Testing Moves Bugs To A Cheaper Phase
15. Cheaper Fixes • cheapest time to fix bugs is when the developer finds them during their work • cost of bugs needs to be evaluated as multiples of developer costs
16. Cheaper Fixes • cultural costs • opportunity costs
17. Build Systems Are Finally Easy To Use
18. Build Systems • Jenkins — https://jenkins-ci.org • Travis-CI — https://travis-ci.org
19. Build Systems • Great side effects • Highlights pain points
20. Awesome Complementary Tools
21. Complementary Tools • code coverage • static analysis
22. Complementary Tools • Code Climate — https://codeclimate.com • Scrutinizer — https://scrutinizer-ci.com
23. “Tracking improvements via tests lets you know the team is on track and doing good work.”
24. It will never be more difficult to test PHP code
25. The time investment in tests produces tangible results
26. I still suck at Magic but are good at Metatesting
27. Questions? chartjes@grumpy-learning.com Twitter - @grmpyprogrammer Buy my stuff at http://grumpy-learning.com