Use Testing to Develop Better Software Faster

Testing doesn’t always get the attention it deserves in software development. Many developers claim to be bad at it, or are just not that interested. (These may or may not be related.)

As developers, our job is to deliver working software. With the shift to CI/CD and the move to the cloud, the need to have the right feedback at the right time only increases. There are many ways that testing can help us with that. Not only can testing help us verify our solution and prevent us from breaking things, it can also help us design our software, find flaws in our architecture and come up with better solutions. In this talk I will highlight some of the many ways that testing can help you to develop better software faster.

Transcript

1. https://maritvandijk.com/
   
   
   @MaritvanDijk77
   
   
   github.com/mlvandijk
   
   
   @maritvandijk@mastodon.social
   Use Testing to
   Develop Better
   Software Faster
   OOP 2023 DIGITAL - Feb 9th, 2023
   

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2. Some tests…
   @MaritvanDijk77
   

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3. @MaritvanDijk77
   

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4. @MaritvanDijk77
   

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5. Build quality in
   @MaritvanDijk77
   

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6. https://danashby.co.uk/2016/10/19/continuous-testing-in-devops/ @MaritvanDijk77
   

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7. https://janetgregory.ca/testing-from-a-holistic-point-of-view/
   
   
   @MaritvanDijk77
   

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8. @MaritvanDijk77
   

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9. The right
   feedback
   at the
   right time
   @MaritvanDijk77
   

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10. Ask questions
    @MaritvanDijk77
    

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11. @MaritvanDijk77
    

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12. @MaritvanDijk77
    

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13. https://elizabethzagroba.com/posts/2019/2019-01-25_have-i-tried-enough-weird-stuff/
    @ezagroba
    @MaritvanDijk77
    

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14. @MaritvanDijk77
    

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15. https://github.com/minimaxir/big-list-of-naughty-strings
    @MaritvanDijk77
    

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16. https://twitter.com/sempf/status/514473420277694465?s=20&t=ZDqpc0arpJZeUBL6M1J3jg
    
    
    https://www.sempf.net/post/On-Testing1
    @MaritvanDijk77
    

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17. How are we going to test this?
    @MaritvanDijk77
    

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18. Test pyramid
    @MaritvanDijk77
    https://martinfowler.com/bliki/TestPyramid.html
    

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19. @MaritvanDijk77
    

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20. Build testability in
    @MaritvanDijk77
    

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21. @MaritvanDijk77
    

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22. “When developers are involved in creating and maintaining
    acceptance tests:
    
    
    1. code becomes more testable (this is why TDD is
    important)
    
    
    2. they will care more and invest more effort into
    maintaining & fixing them.”
    
    
    - Accelerate by Nicole Forsgren, PhD
    
    
    Jez Humble, and Gene Kim
    

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23. Use the right tools
    @MaritvanDijk77
    

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24. @MaritvanDijk77
    

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25. Use tools as intended
    @MaritvanDijk77
    

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26. Tests should increase confidence
    @MaritvanDijk77
    

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27. @MaritvanDijk77
    

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28. Tests should be reliable
    @MaritvanDijk77
    

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29. @MaritvanDijk77
    

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30. @MaritvanDijk77
    

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31. @MaritvanDijk77
    https://www.youtube.com/watch?v=1cZRBtrvys0
    

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32. Run your tests
    @MaritvanDijk77
    

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33. Run your tests
    @MaritvanDijk77
    

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34. Never
    
    
    trust a test
    
    
    you haven’t
    seen fail
    @MaritvanDijk77
    

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35. @MaritvanDijk77
    

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36. A failing test should tell you
    exactly what’s wrong quickly
    @MaritvanDijk77
    

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37. @MaritvanDijk77
    @MaritvanDijk77
    Kevlin Henney
    
    
    GOTO 2022 Amsterdam
    

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38. Use
    meaningful,
    descriptive
    names
    @MaritvanDijk77
    

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39. Each test should test one thing
    @MaritvanDijk77
    

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40. @MaritvanDijk77
    Readability of your tests
    

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41. @MaritvanDijk77
    

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42. @MaritvanDijk77
    

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43. TL; DR: Test your code!
    @MaritvanDijk77
    https://www.redbubble.com/people/hogfish (Trish Khoo @hogfish)
    

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44. https://maritvandijk.com/
    
    
    @MaritvanDijk77
    
    
    github.com/mlvandijk
    
    
    @maritvandijk@mastodon.social
    Slides & More
    https://maritvandijk.com/presentations/better-software-faster/
    

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