The Three Laws of Test Driven Development are Useful
summary
Claims that the three laws of TDD (write a failing test, write just enough test to fail, write just enough production code to pass) help design APIs and create tight feedback loops but miss when to stop and what to test. Solution is to author executable specifications from requirements, run them with Jest (example: FizzBuzz implemented as spec-driven tests), publish HTML living reports as living documentation, refactor freely and keep tests green.
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chapters (8)
- 0:00Introduction to TDD
- 7:12What is Test Driven Development
- 12:09Three Rules of TDD
- 14:20Why Three Rules Are Incomplete
- 17:50Executable Specifications
- 21:43Zeroth Rule and Solution
- 22:06FizzBuzz Example
- 34:23Summary and Recommendations
