On testing culture in GitHub projects
to.leif.me
to.leif.me
If someone wants to discuss how to approach or solve a problem in general without working and tested code, I'd prefer to see that happen in the bug/issue rather than a pull request. Otherwise it can lead to wasted effort and/or hurt feelings on the part of the contributor.
and link to the paper concerned: http://se.uni-hannover.de/pub/File/pdfpapers/Pham2012.pdf