Applying testing mindset to software development
Software Development is a creative activity that requires focus. During coding session you as a programmer tends to make so many decision that sometimes force you to neglect 'unimportant details' that might sounds like specific use cases, unclear statements or somethings that won't gonna happen. In most cases the system even so complex that is not that easy to step out and see the whole picture, even from user's point of view. Historically software developers used to trust other people called testers to verify those 'details' from user's perspective before deploying into production. In order to have proper alignment inside the team dedicated 'QA step' added to the process. That obvious solution have some quick-wins with outcome of found bugs before releasing the software. But there are some tradeoffs, such as: slower delivery cycle, extra test documentation and GUI automated tests that are not that easy to maintain. During my talk I would like to share some insight and lessons we learned @ Spotify that helps us improving team's development productivity without losing quality of the product. Hopefully that will help your team as well or at least show one of the directions you might want to follow. Spotify Engineering Culture: https://labs.spotify.com/2014/03/27/spotify-engineering-culture-part-1/ https://labs.spotify.com/2014/09/20/spotify-engineering-culture-part-2/
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Applying testing mindset to software development
- 1. November 30, 2015 Applying testing mindset to software development Andrii Dzynia Software Engineer @adzynia
- 2. 2 Spotify brings you the right music for every moment! Over 20,000 songs added every day Started in 2006 (in Sweden) Now 1500+ employees, 600+ engineers 5(STO, GBG, NYC, BOS, SF) engineering offices Over 30 million songs available Over 60 million active users Over 15 million paying subscribers
- 3. 3
- 4. Organic Structure 4 Scaled Agile @ Spotify@joakimsunden
- 5. 5 Is a Programmer Enjoying learning new things Passioned about technologies PETER
- 6. ONE DAY OF PETER’S LIFE WAKE UP THINK ABOUT PROBLEM WAS NOT ABLE TO SOLVE YESTERDAY COMMUTE TO THE OFFICE SYNC MEETING WITH A TEAM FINISH CODING AND DEPLOYMENT GO ON MEETING GET NEW TASK TO WORK ON START IMPLEMENTATION GO ON MEETING GO HOME 6
- 7. WHERE IS THE HIDDEN RISK? 7 @visbeek
- 8. Peter deployed the code. Bug NullPointerException Issue 403 5xx 503 4xx IllegalStateException Bug
- 9. 9 Let’s hire a tester!
- 10. Scenario A Testing is not my job attitude from programmers Tester is full of boring routine work Users are frustrated how long it takes to fix bugs 10
- 11. Scenario A' ‘Testing’ is boring let’s automate it attitude Tester is helping out with test ideas Tester establishing communication channels with the users 11
- 12. Questions How can we spot issues early? How could we miss that bug? How to fix missed bugs faster? 12
- 13. Think how to receive feedback 13
- 14. Feedback during meetings 14 challenge ideas and solutions via healthy discussions prove hypnotises via end user collaborations
- 15. 15 Feedback while online comments, corrections, suggestions shared with everyone, any input is valuable
- 16. Feedback during implementation 16 write tests during implementation rise your concerns during ad-hoc discussions peer review before merging to master
- 23. Testing uncovers what your system/ product can and cannot do. 23 @adzynia
- 24. If testing is not fun, then something is wrong. 24 @adzynia