google-test code coverage
stackoverflow google-test: code coverage
Yes, I've successfully used both free (gcov) and commercial (CTC++) tools.
More details can be found in this blog http://googletesting.blogspot.dk/2014/07/measuring-coverage-at-google.html
NOTE:
1、上面这篇blog,就是这个回答者写的
Yes, You can club your Gtest Based application with support of Gcov/lcov. refer the documentation of lcov http://ltp.sourceforge.net/coverage/lcov.php