in boost/teamcity_boost.cpp [125:135]
void TeamcityBoostLogFormatter::test_unit_start(std::ostream &out, boost::unit_test::test_unit const& tu) {
messages.setOutput(out);
if (tu.p_type == TUT_CASE_IDENTIFIER) {
messages.testStarted(tu.p_name, flowId);
} else {
messages.suiteStarted(tu.p_name, flowId);
}
currentDetails.clear();
}