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Test Driven Development

Avatar for Hyperjump Tech Hyperjump Tech
May 07, 2021
Programming
45
3

Test Driven Development

Explain how TDD is actually happening in a real programming case.

Avatar for Hyperjump Tech

Hyperjump Tech

May 07, 2021

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Transcript

  1. Test Driven Development

  2. What is TDD ?

  3. The Red/Green/Refactor Cycle Refactor and clean the code Write test

    and watch it fails Write minimal code that makes that test pass
  4. None

  5. Write test.

  6. None
  7. None
  8. None
  9. None

  10. Run test, watch it fails.

  11. None

  12. Write minimal code, pass the test.

  13. None

  14. Run test, watch it fails.

  15. None

  16. Write minimal code, pass the test.

  17. None

  18. Run test, watch it fails.

  19. None

  20. Refactor is the key

  21. None
  22. None
  23. None

  24. Run test, watch it fails.

  25. None

  26. Write minimal code, pass the test.

  27. None

  28. Run test, watch it fails.

  29. None

  30. Write minimal code, pass the test.

  31. None

  32. Run test, watch it fails.

  33. None

  34. Even more refactor.

  35. None

  36. Run test, watch it fails.

  37. None

  38. Write minimal code, pass the test.

  39. None

  40. Run test, watch it fails.

  41. None

  42. Ship code to production.

  43. None

  44. Refactor is the key, remember?

  45. Refactoring is a disciplined technique for restructuring an existing body

    of code, altering its internal structure without changing its external behavior. - Martin Fowler
  46. None

  47. Run test, watch it fails.

  48. None

  49. Why should we use TDD ?

  50. TDD start with the end of mind, and walks you

    through what is the next step you have to do to get the code working
  51. None
  52. None
  53. None
  54. None

  55. 75% of a developer’s time is spent on debugging

  56. TDD eradicates fear of change - Eric Elliott

  57. 40%-80% fewer bugs in production* *https:/ /www.researchgate.net/publication/3249271_Guest_Editors'_Introduction_TDD--The_Art_ of_Fearless_Programming

  58. Source https://www.codecademy.com/articles/tdd-red- green-refactor https://blog.cleancoder.com/uncle-bob/2014/1 2/17/TheCyclesOfTDD.html https://medium.com/javascript-scene/tdd-chan ged-my-life-5af0ce099f80 https://coralogix.com/log-analytics-blog/this-is- what-your-developers-are-doing-75-of-the-time -and-this-is-the-cost-you-pay/

    https://pixabay.com/vectors/wow-bang-explosi on-pow-blast-155268/ https://heeris.id.au/2013/this-is-why-you-shoul dnt-interrupt-a-programmer/