Question

(Leaving aside hair-splitting about if this is integration-testing or unit-testing.)

I would rather first test at the large scale. If my app writes a VRML file that is the same as the reference one then the VRML exporter works, I don’t then have to run unit tests on every single statement in the code. I would also like to use this do some level of poor-man gui testing by comparing screenshots.

Is there a unit test framework (for C++ ideally) that integrates this sort of testing – or at least makes it easy to integrate with unit tests?

edit. It seems a better term is approval testing. So are there any other unit test frameworks that incorporate Approval Testing ?

Answer 1

Have a look at Approval Tests, written by a couple of friends of mine. Not C++, but it’s the general idea of what you’re after, also known as Golden Master tests. Good stuff, whether it’s unit tests or not.