google-test: code coverage

Question

Is it possible to get code coverage done by tests using google test framework?

Answer 1

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

there is one linux test project utility available which does your job very easy and is very self-interpretative.

lcov - a graphical GCOV front-end

Download from Ubuntu repo:

$ sudo apt-get install lcov

1. Use following commands in your build directory

   $ lcov --directory ./build/ --capture --output-file ./code_coverage.info -rc lcov_branch_coverage=1
   

2. Run the Application

3. Generate HTML Report

   $ genhtml code_coverage.info --branch-coverage --output-directory ./code_coverage_report/
   

This will look something like - http://ltp.sourceforge.net/coverage/lcov/output/index.html