Learning TDD by reading the book: TDD by Example

1. Write a test
2. Make it compile
3. Run it to see that it fails
4. Make it run
5. Remove duplication

First 3 steps prioritise speed over quality

• Divide and conquer (small steps)
• Passing tests very quickly is more important than code quality
• After passing the tests, then clean up the code

• Fake it: If something goes wrong
• Obvious implementation: When all is well
• Triangulation: adding another test case and generalize the 2 cases when uncertain on how to refactor