Some code are very hard to test unless you spend a great deal amount of time in making a test driver. I once wrote some 1000 unit tests all by myself for a project I was working on. It was painful to keep updating code, no matter how much time I put into abstraction. At some point a big feature blows things away and tests start to fail.
Some systems are hard to test. Anything involving spawning processes doing unit-testing is hell. I can mock/stub but it takes a lot of effort to do that. Nowadays I go with functional tests as much as possible. If I can't even pass my functional tests how on earth do I ship my code upstream. Sometimes unit-tests don't reflect problem in the real world and the hours i have to spend on making unit tests passing can be used to make a few more functional tests more robust.
Does anyone know unit test coverage for software like puppet/chef/ansible. A year ago when I checked ansible the number of unit tests was very little. Most of the time functional tests look more promising then unittesting in that kind of complex, process/system interactive software.
Some systems are hard to test. Anything involving spawning processes doing unit-testing is hell. I can mock/stub but it takes a lot of effort to do that. Nowadays I go with functional tests as much as possible. If I can't even pass my functional tests how on earth do I ship my code upstream. Sometimes unit-tests don't reflect problem in the real world and the hours i have to spend on making unit tests passing can be used to make a few more functional tests more robust.
Does anyone know unit test coverage for software like puppet/chef/ansible. A year ago when I checked ansible the number of unit tests was very little. Most of the time functional tests look more promising then unittesting in that kind of complex, process/system interactive software.