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Last active March 16, 2017 07:23
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A few quick thoughts on testing
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notes.md

Why write tests?

  • Have more confidence that the code works. Important since the business depends on it.
  • Reduces the number of bugs.
  • Make changes and refactor more easily / at lower cost.
  • Save time in the long run.
  • Understand the code and make better design choices.
  • Gives you a form of documentation.

How to do it with existing code

  • Add tests for new stuff.
  • Add tests for pieces of old stuff that the new stuff touches.
  • Add tests for old stuff where you fix bugs.
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