This is not actually a plugin, but C++ files to include in your project that automatically reports unit tests to the TeamCity server if run within TeamCity.
The reporting is performed via TeamCity service messages
Alternatively you may use XML Report Processing to import results from running tests to TeamCity.
Also use it for not yet supported frameworks such as CxxTest
teamcity-boost-1.3.zip for Boost.Test library
teamcity-cppunit-1.3.zip for CppUnit