Hello, I initially sent the following message to the boost-dev mailing list, but I'm thinking this might reach more potential users here on boost-users. Would a library for mock objects be of interest ? The documentation can be found here : http://mat007.users.sourceforge.net/boost_mock/ An archive is also available for download there : http://sourceforge.net/projects/mat007.u/files/boost-mock.zip It's been converted from turtle (http://turtle.sourceforge.net/) which was mentioned on the mailing-lists a couple of times in the past. There is a catch in that it needs Boost.Test from the release branch and doesn't compile with the trunk. The changes are minimal though and I can provide a patch if anyone is interested. Is anyone already using the library who would like to see it in Boost ? Or is anyone using another mock object library who wants to give it a go ? Or even better has anyone tried it and decided to user another library who would like to comment on it ? I would be highly interested in any feedback ! Thank you, MAT.