Building the quality in

Agile methodologies are very popular these days. Writing user stories with acceptance criteria, standup meetings and other agile ceremonies are nothing new to the most of us.

Going one step further and automating the acceptance criteria with tools like Behat, improves the outer quality of the software we write, by focusing the development on the business goals from the very beginning.

On the other hand, tools like PhpSpec aim to ensure the inner quality of code, supporting the developer at every step by almost suggesting next actions to take.

During the talk Jakub presented development practices for developers focused on building quality into the application with a test-first approach.

Transcript

1. Building the quality in by Jakub Zalas BrightonPHP, 16th Sep 2013
2. Who am I? o  I work @SensioLabsUK o  I tweet @jakub_zalas o  I code @jakzal
3. QUALITY? What is
4. How would you define software quality? @jakub_zalas
5. for me software quality is defined by factor how easy is to introduce and manage change without breaking product @cakper
6. clean, readable code. documentation where appropriate. complementary test suite. peer reviewed. @rich_81 oh and bug-free ;-)
7. easier to maintain = less technical debt = less cost financially. @rich_81 plus, who likes working on crappy projects? ;-)
8. Easy to maintain and extend. @sprain
9. software quality is very subjective! It's not only about the code @hhamon but also availability, ease to use, ease to change, failures tolerance, performance, backups management...
10. WTF per minute per user Jacek
11. I would distinguish between internal and external quality. @CiaranMcNulty
12. Quality is really two levers: external and internal quality. External quality is the quality perceived by the customer. [Internal quality is] Quality of internals of the system: how well it is designed, how good the internal tests are, and so on.
13. the extent to what the software takes into account what matters most for the customer & the maintainability of the source code @_md External quality Internal quality
14. software quality? That the software delivers real value and is built in a sustainable way. @IanDominey External quality Internal quality
15. IGNORE THE QUALITY? What if we
16. Ignoring the external quality
17. Ignoring the internal quality
18. Ignoring the internal quality
    Care No care Time # of features
19. IS OUR PROFESSIONAL RESPONSIBILITY Ensuring the internal quality
20. CONTINUOUSLY REVIEW THE DESIGN To MAINTAIN the internal quality
21. REFACTOR To MAINTAIN the internal quality
22. TESTS There’s no refactoring without
23. IS OUR PROFESSIONAL RESPONSIBILITY Writing tests
24. DESIGN WELL To BUILD the internal quality
25. DRIVE YOUR CODE WITH TESTS To BUILD the internal quality
26. WE LEARN HOW TO KEEP THE DESIGN SIMPLE Writing tests FIRST
27. IS OUR PROFESSIONAL RESPONSIBILITY Writing tests FIRST
28. THE EXTERNAL QUALITY? What about
29. Requirements Design Coding QA Support External quality Internal quality
30. CREATE A COMMON UNDERSTANDING To build the external quality into your software
31. Failing   step   Failing   test   Code   Refactor   Passing   step   External Internal
32. INTERNAL AND EXTERNAL QUALITIES WON’T BE ALIGNED If you’re not building them in
33. DEMO
34. Feature: Language detection In order to avoid frustration As a Visitor I want my language to be automatically detected Scenario: British visitor Given I am in the UK When I visit the homepage Then I should see the website in English Scenario: French visitor Given I am in France When I visit the homepage Then I should see the website in French Scenario: Unrecognised language Given my language cannot be determined based on location When I visit the homepage Then I should see the website in English
35. Language Detection Listener •  Sets a locale on the Request if it can be determined •  Does nothing if locale cannot be determined
36. Geo Ip Dictionary •  It returns a locale found by ip •  It returns a default locale if country could not be determined •  It returns a default locale if country is not supported
37. THE END
38. Credits •  http://www.rgbstock.com/photo/mfXiaE4/Angry+Sumo •  http://www.nightmarefactory.com/cgi-bin/shopper?preadd=action&key=RU909885 •  http://en.wikipedia.org/wiki/Blind_men_and_an_elephant •  http://www.rgbstock.com/download/RWLinder/mC5Xudi.jpg