>True, but you can have both types of tests You can, but if your code is 95% coordination and 5% algorithmic, at most you'd want 5% unit tests. >In many cases

>True, but you can have both types of tests You can, but if your code is 95% coordination and 5% algorithmic, at most you'd want 5% unit tests. >In many cases, you'd be better off separating the logic Which is refactoring and if you're refactoring you need to have your code surrounded with tests to do it safely. And, once you've done that, if you've already written integration tests for that logic and they perform acceptably well, there may be no point in rewriting the integration test as a unit test.