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Javascript Tests with Jasmine for Front-end Devs
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Javascript Tests with Jasmine for Front-end Devs

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Jasmine isn't just for Rubyists - it's for anyone that wants to revolutionize their Javascript code and development workflow. I give a tutorial in getting up and running with an agile, Test Driven …

Jasmine isn't just for Rubyists - it's for anyone that wants to revolutionize their Javascript code and development workflow. I give a tutorial in getting up and running with an agile, Test Driven Development workflow using nothing but HTML and Javascript.

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Transcript

  • 1. Javascript Tests with JasmineA Primer for Front-end Devs
  • 2. Chris PowersConsultant with //obtivahttp://chrisjpowers.com@chrisjpowers
  • 3. Get the Code!$ git clone git://github.com/chrisjpowers/jasmine_demo.git
  • 4. Why Test Javascript?
  • 5. Seems like alot of work just for some lousyregression tests...
  • 6. Test Driven Development is about much morethan just writingtest coverage!
  • 7. How Does TDD Work?•Red• Green• Refactor• Repeat!
  • 8. RED•Identify a business requirement• Write a test to express the requirement•Watch the test fail• Ensure it failed “correctly”
  • 9. GREEN• Write code to make the test pass• Write as little code as possible• Focus on the requirement, don’t solve future problems
  • 10. REFACTOR•Improve your code quality• Remove duplication (DRY)• Modularize code• DO NOT change app behavior
  • 11. REPEAT! Feature TestUnit Test Unit Test Unit Test
  • 12. Enforces Good Design•Modular and Namespaced• Flexible, Updatable, Reusable• Easily Testable
  • 13. Focus and Process• Driven by Business Requirements• Red, Green, Refactor• Know When You’re Done
  • 14. “Free” Documentation•Legible Output• Expresses Object Behavior• Get Devs Up to Speed
  • 15. Oh yeah... plus you get aregression test suite
  • 16. What is Jasmine?•TDD Framework• Tests Run in the Browser• No Command Line Needed• Especially Rubyist Friendly
  • 17. TutorialLet’s get testing...