Overriding system libraries

Regression testing is great, but when you're testing your applications interactions with other libraries (especially ones that do lots of work) while doing memory checking (valgrind) things can get really really slow. Opendias testing is no exception.

Since we don't want to test these libraries - we just want to test opendias - I've decided to 'stub out' some of the larger application libraries (some parts of same, tesseract and PDF parsing) while running regression tests.

Some very cool stuff. Here's two links I've recently found very useful in that task.

• http://www.techytalk.info/c-cplusplus-library-programming-on-linux-part-two-dynamic-libraries/
• http://entrenchant.blogspot.co.uk/2009/03/linking-static-libraries-into-shared.html

I'm pleased to say, they do their job very well, and I'm very happy at the results.