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Einführung Test-driven Development
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Einführung Test-driven Development

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Transcript

  • 1. Test-Driven DevelopmentPython Barcamp – April 2013Timo Stollenwerk
  • 2. Testing ???
  • 3. Do not break things!Timo Stollenwerk
  • 4. What do we get?●Code that works●Proof that is works●Lower defect rate●Cheaper bug fixing
  • 5. Test-Driven Development
  • 6. Test-Driven Development
  • 7. Test-Driven Development
  • 8. Test-Driven Development
  • 9. What do we get?●Shorter developmentcycles●Fast developmentprocess●Satisfaction●Fun!
  • 10. No code without a failing test
  • 11. Make test pass (quickly)
  • 12. Test
  • 13. Fix
  • 14. Refactor
  • 15. What do we get?●Clean Code thatworks●Agile code
  • 16. Testing Pyramid
  • 17. Unit Testing
  • 18. Integration Tests●Schema●Factory Type Info●Factory●Adding●View
  • 19. Functional Testing
  • 20. Functional Tests●„Second line of testdefense.“ (MartinFowler)●Testable specification●Failure in afunctional test >missing unit test
  • 21. Book Recommendations
  • 22. Test-Driven Developmentcontact@timostollenwerk.nettwitter: @timostollenwerkirc: tistoTimo Stollenwerk