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Presentation for Pittsburgh Agile Group
- 1. Test Driven Development Pittsburgh Agile Group May 24, 2011 Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 2. Our Tests It == This Presentation Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 3. Our Tests It == This Presentation ā¢ it should deļ¬ne TDD Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 4. Our Tests It == This Presentation ā¢ it should deļ¬ne TDD ā¢ it should explain why TDD works Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 5. Our Tests It == This Presentation ā¢ it should deļ¬ne TDD ā¢ it should explain why TDD works ā¢ it should explain why you should do TDD Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 6. Our Tests It == This Presentation ā¢ it should deļ¬ne TDD ā¢ it should explain why TDD works ā¢ it should explain why you should do TDD ā¢ it should demonstrate TDD Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 7. What is TDD? Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 8. What is TDD? ā¢ Simple, high-feedback incremental coding technique Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 9. What is TDD? ā¢ Simple, high-feedback incremental coding technique ā¢ Write tests as specs prior to code Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 10. What is TDD? ā¢ Simple, high-feedback incremental coding technique ā¢ Write tests as specs prior to code ā¢ Immediate feedback Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 11. Core of the cycle Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 12. History of TDD Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 13. History of TDD Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 14. History of TDD ā¢ Devised by Ward Cunningham Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 15. History of TDD ā¢ Devised by Ward Cunningham ā¢ Honed by Kent Beck Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 16. History of TDD ā¢ Devised by Ward Cunningham ā¢ Honed by Kent Beck ā¢ Incorporated as one of XPās practices Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 17. History of TDD ā¢ Devised by Ward Cunningham ā¢ Honed by Kent Beck ā¢ Incorporated as one of XPās practices ā¢ Buzzword History Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 18. History of TDD ā¢ Devised by Ward Cunningham ā¢ Honed by Kent Beck ā¢ Incorporated as one of XPās practices ā¢ Buzzword History ā¢ Test-ļ¬rst programming Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 19. History of TDD ā¢ Devised by Ward Cunningham ā¢ Honed by Kent Beck ā¢ Incorporated as one of XPās practices ā¢ Buzzword History ā¢ Test-ļ¬rst programming ā¢ Test-ļ¬rst design Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 20. History of TDD ā¢ Devised by Ward Cunningham ā¢ Honed by Kent Beck ā¢ Incorporated as one of XPās practices ā¢ Buzzword History ā¢ Test-ļ¬rst programming ā¢ Test-ļ¬rst design ā¢ Test-driven development Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 21. TDD and Testing Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 22. TDD and Testing ā¢ Creates testable code by deļ¬nition Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 23. TDD and Testing ā¢ Creates testable code by deļ¬nition ā¢ Obvious but signiļ¬cant Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 24. TDD and Testing ā¢ Creates testable code by deļ¬nition ā¢ Obvious but signiļ¬cant ā¢ Writing tests after code built is much harder Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 25. TDD and Testing ā¢ Creates testable code by deļ¬nition ā¢ Obvious but signiļ¬cant ā¢ Writing tests after code built is much harder ā¢ Therefore fewer tests get written Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 26. TDD and Testing ā¢ Creates testable code by deļ¬nition ā¢ Obvious but signiļ¬cant ā¢ Writing tests after code built is much harder ā¢ Therefore fewer tests get written ā¢ Minimizes defects Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 27. More Importantly... Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 28. More Importantly... ā¢ Promotes better design Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 29. More Importantly... ā¢ Promotes better design ā¢ Teaches you how to design isolated classes Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 30. More Importantly... ā¢ Promotes better design ā¢ Teaches you how to design isolated classes ā¢ Creates comprehensive developer documentation Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 31. More Importantly... ā¢ Promotes better design ā¢ Teaches you how to design isolated classes ā¢ Creates comprehensive developer documentation ā¢ Development Pacing Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 32. TDD Rules Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 33. TDD Rules ā¢ Test everything that could possibly break Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 34. TDD Rules ā¢ Test everything that could possibly break ā¢ Do not write any production code until you have a failing test Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 35. TDD Rules ā¢ Test everything that could possibly break ā¢ Do not write any production code until you have a failing test ā¢ Code is not checked in until 100% of unit tests run Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 36. Our Tests It == This Presentation ā¢ it should deļ¬ne TDD ā¢ it should explain why TDD works ā¢ it should explain why you should do TDD ā¢ it should demonstrate TDD Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 37. Our Tests It == This Presentation ā¢ it should deļ¬ne TDD ā¢ it should explain why TDD works ā¢ it should explain why you should do TDD ā¢ it should demonstrate TDD Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 38. Why does it work? Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 39. Why does it work? Pleasure spiked with Pain! Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 40. Why does it work? Pleasure spiked with Pain! Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 41. Why does it work? Pleasure spiked with Pain! Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 42. Long Methods Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 43. Long Methods Pain! Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 44. Many Dependencies Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 45. Many Dependencies Pain! Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 46. Doing too much Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 47. Doing too much Pain! Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 48. Keep it clean Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 49. Keep it clean Pleasure Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 50. Feel good Pleasure Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 51. Our Tests It == This Presentation ā¢ it should deļ¬ne TDD ā¢ it should explain why TDD works ā¢ it should explain why you should do TDD ā¢ it should demonstrate TDD Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 52. Our Tests It == This Presentation ā¢ it should deļ¬ne TDD ā¢ it should explain why TDD works ā¢ it should explain why you should do TDD ā¢ it should demonstrate TDD Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 53. Nature ^ F T> Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 54. Nature X ^ F T> Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 55. Nature X ^ F T> Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 56. Nature X ^ F T> Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 57. Nature X ^ F T> Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 58. Nature X ^ F T> Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 59. Design Evolves Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 60. Design Evolves Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 61. Design Evolves Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 62. Design Evolves Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 63. Design Evolves Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 64. Design Evolves Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 65. Fewer Defects http://research.microsoft.com/en-us/projects/esm/ nagappan_tdd.pdf Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 66. We Do Scrum! Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 67. We Do Scrum! Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 68. We Do Scrum! Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 69. Professionalism Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 70. Our Tests It == This Presentation ā¢ it should deļ¬ne TDD ā¢ it should explain why TDD works ā¢ it should explain why you should do TDD ā¢ it should demonstrate TDD Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 71. Our Tests It == This Presentation ā¢ it should deļ¬ne TDD ā¢ it should explain why TDD works ā¢ it should explain why you should do TDD ā¢ it should demonstrate TDD Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 72. Demo Time Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 73. Our Tests It == This Presentation ā¢ it should deļ¬ne TDD ā¢ it should explain why TDD works ā¢ it should explain why you should do TDD ā¢ it should demonstrate TDD Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 74. Our Tests It == This Presentation ā¢ it should deļ¬ne TDD ā¢ it should explain why TDD works ā¢ it should explain why you should do TDD ā¢ it should demonstrate TDD Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 75. Final Thoughts Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 76. Final Thoughts ā¢ TDD is here to stay Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 77. Final Thoughts ā¢ TDD is here to stay ā¢ A satisfying and enriching practice that can dramatically increase the quality of your application Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 78. Final Thoughts ā¢ TDD is here to stay ā¢ A satisfying and enriching practice that can dramatically increase the quality of your application ā¢ Diligent adherence to practice is required to succeed Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
- 79. Final Thoughts ā¢ TDD is here to stay ā¢ A satisfying and enriching practice that can dramatically increase the quality of your application ā¢ Diligent adherence to practice is required to succeed ā¢ But the beneļ¬ts are worth it Copyright 2011 LeanDog, Inc. All Rights Reserved. Do not copy or distribute without permission.
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