Test-driven development is a great technique to add to your tool belt, it will help you by:
- Giving you confidence so you can refactor
- Improving your design towards SOLID — Forcing the code to be designed in a testable manner.
- Develop faster over the long run.
- Give you an easy way to retest the application in a matter of seconds.
- Minimise YAGNI (You aren’t gonna need it) — As developers have clear goals to know when the task is done.
- Maintenance costs reduced.
关于重构的时候，先去做TDD，很有好处
TDD rules:
- You shall not write production code other than to pass a failing test
- You shall not write more of the production code than necessary to pass that failing test.
- You shall not write more of the test than to make it fail for the right reason.
TDD works greatly when you have a domain, something you know the input and what is the expected output.
针对领域编程部分，TDD效果很好