Writing the tests first, or at least in tandem with your code, is the only way to fly. It's like publishing a proof along with your code.
it sounds trite: make the tests fit the code. Yes, it's a little more work to accomplish. The key here is that refactors of any scale become trivial to implement when you have unit-test coverage greater than 80%. This lets you extend your code with ease since that usually requires some refactor on some level.
Writing the tests first, or at least in tandem with your code, is the only way to fly. It's like publishing a proof along with your code.
it sounds trite: make the tests fit the code. Yes, it's a little more work to accomplish. The key here is that refactors of any scale become trivial to implement when you have unit-test coverage greater than 80%. This lets you extend your code with ease since that usually requires some refactor on some level.