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Productive JavaScript Workflow
- 1. Productive JavaScript workflow Krzysztof Szafranek
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- 5. 2 years > 80000 lines of JavaScript 4 major redesigns 15 front-end developers
- 6. Do you testevery change in each browser? Before each commit? × ×
- 7. Are you sureyou didn’t break any page in the application?
- 8. Do you knowif you didn’t break somebody else’s code?
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- 10. How to staysane while working on a large JS project? Krzysztof Szafranek
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- 13. jslint will hurtyour feelings Early
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- 16. “But we don’thave time to write tests!” “My manager didn’t want unit tests”
- 17. How do youknow your code works, when you don’t have a test for it?
- 18. How do youknow your code still works aer each commit, when you don’t have a test for it?
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- 20. Added bonus: Refactorings area breeze
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- 22. Which framework? DOH Jasmine RhinoUnit JSUnit screw-unit JasUnit QUnit Test.Simple FireUnit Crosscheck Test.More Js-test-driver J3Unit TestCase Sinon.js JSNUnit TestIt SOAtest YUITest jsUnitTest Vows JSSpec JSTest Nodeunit UnitTesting JSTest.NET Tyrtle JSpec jsUnity
- 23. Doesn’t matter (Aslong as you use it) (And is easy to automate)
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- 25. How about testinglayouts?
- 26. Part II Putting itall together
- 27. Running tests inevery browser takes time People make mistakes
- 28. Automation to therescue!
- 29. Continuous Integration isa soware development practice where members of a team integrate their work frequently . . . leading to multiple integrations per day. Each integration is verified by an automated build (including test) to detect integration errors as quickly as possible. Martin Fowler
- 30. CI for front-end push jslint deploy tests
- 32. Early bug detection Earlyfixes No more FTP uploads Application is always shippable
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- 34. Part III Humans areuseful, too
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- 38. .. soware testingalone has limited effectiveness – the average defect detection rate is only 25 percent for unit testing, 35 percent for function testing, and 45 percent for integration testing. In contrast, the average effectiveness of design and code inspections are 55 and 60 percent. Steve McConnell Code Complete
- 40. A little helpfrom the process Not Checked Code Design QA Started Out Review Review Review Are there unit tests?
- 41. Before we part 1.Use jslint and unit tests to get feedback early 2. Use CI to have shippable soware all the time 3. Don’t be afraid of your peers (and ducks)
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- 43. krzysztof@szafranek.net Photo credits: SpoiltCat, RemixDave, activeside, kate.gardiner, Jiheffe