Treat yourself - A tale about dogtraining and test driven development

Slides to my keynote at European Testing Conference 2020 in Amsterdam.
You can find the code example on github:
https://github.com/programmiri/examples-talk-tdd-dogtraining

Transcript

1. Treat yourself
   A TALE ABOUT DOG TRAINING AND TEST DRIVEN
   DEVELOPMENT
   

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2. HI!
   !
   

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3. I
   !
   TESTING
   Image src: https://www.youtube.com/watch?v=dQw4w9WgXcQ
   

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4. MFW SOMEONE SAYS THEY don't like testing
   Image src: https://giphy.com/gifs/reaction-dogs-texting-RGK9jWz0t89Hy
   

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5. THE PERFECT JOB DOES NOT EXI—
   

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6. I WAS A DOG
   TRAINER
   

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7. Image src: https://giphy.com/gifs/truthorange-dog-surprised-wtf-xThuW7icYBlQZxjnyg
   

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8. SO... HOW TO
   TRAIN A DOG,
   MIRJAM?
   Original image: https://www.flickr.com/photos/lovine/5433988749
   

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9. Teach your dog
   WHAT TO DO
   Video src: https://giphy.com/gifs/cat-dog-trick-2J2XDIiYBFIu4
   

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10. Dogs do things when
    IT'S WORTH IT
    Image src: https://giphy.com/gifs/happiness-9fuvOqZ8tbZOU
    

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11. WORK WITH
    your dogs brain
    Video src: https://www.youtube.com/watch?v=EbJ5J5SE6ws
    

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12. Always have a
    POSITIVE GOAL
    Image src: https://giphy.com/gifs/cute-aww-eyebleach-2yqyKvK47qaea8IdnV
    

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13. Take the
    SMALLEST STEPS
    Image src: https://i.imgur.com/REevAsi.gifv
    

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14. BACK TO CODE
    Image src: https://i.imgur.com/REevAsi.gifv
    

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15. Test Driven
    DEVELOPMENT
    

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16. TEST DRIVEN DEVELOPMENT
    Tests first
    

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17. TEST DRIVEN DEVELOPMENT - how
    Red - Green - Refactor
    Image src: https://giphy.com/gifs/peteandpete-season-3-the-adventures-of-pete-and-3o7Z4tNIWOQWTlfGN2
    

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18. TDD CYCLE
    ❌
    Write a test.
    ❌
    That test fails - obviously
    ❌
    Write code that makes the test pass
    ✅
    Test pass!
    #
    Refactor
    Rinse and repeat!
    Image src: https://giphy.com/gifs/girl-yeah-wash-JS88XIgg7laNO
    

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19. BUT WHY?
    

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20. Image src: https://martinfowler.com/bliki/TestPyramid.html
    

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21. LET'S WRITE SOME
    ✨
    tests
    

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22. DOG TRAINING SIMULATOR
    TASK
    Program to show others how to train a specific behavior to a dog.
    

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23. DOG TRAINING SIMULATOR
    USER STORY
    I have a dog and I want to teach this dog the behavior "Touch",
    using positive reinforcement as a technique.
    

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24. DOG TRAINING SIMULATOR
    INITIAL SITUATION
    - no past no conditioning
    - rewarding, neutral and punishing consequences
    - visible reactions to consequences
    

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25. DOG TRAINING SIMULATOR
    My training will be successful when...
    - I say "Touch"
    - and hold two fingers so my dog can access them,
    - my dog comes immediately and
    - with a joyful body language to me and
    - presses its nose at the two fingers shortly.
    

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26. LET'S THINK ABOUT THIS
    

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27. ✋
    STOP!
    

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28. RED
    GREEN
    REFACTOR
    

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37. !"#
    

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42. Take
    little
    steps!
    

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51. !
    

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55. !
    

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83. SUMMARY
    

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84. WHAT - imho - TDD IS ABOUT
    TDD is not only a strategy for tests, it's a strategy for design.
    It helps to stay focused and keep things simple.
    It makes changes easier and refactoring safer.
    You can work in quick iterations and get in a very motivating feedback loop.
    

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85. TESTER
    !
    DEVELOPER
    How it brings us together
    - help developers to refine tests
    - build a balanced testing pyramid together
    Image src: https://giphy.com/gifs/dog-hug-sX755wvr2Q6gE
    

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86. THANKS A
    LawhoooooOT
    

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