To measure code coverage, compile TESTCOV build using g++:
mkdir -p build/testcov
cd build/testcov
cmake -DCMAKE_BUILD_TYPE=Debug -DTESTCOV=ON -DCMAKE_CXX_COMPILER=g++-4.8 -G Ninja ../../src
and run:
ninja cov
It will build the project, run testcases, and compute code-coverage.
In the end, you have build/testcov/coverage directory containing
a code-coverage report in HTML format.
Make sure that the version of gcov matches with the one of
g++. Also try to use the latest lcov (currently lcov-1.10)
if you have a problem with the existing one:
wget http://downloads.sourceforge.net/ltp/lcov-1.10.tar.gz;
tar xvfz lcov-1.10.tar.gz;
cp -v lcov-1.10/bin/{lcov,genpng,gendesc,genhtml,geninfo} /usr/bin/;
rm -rf lcov-1.10.tar.gz lcov-1.10;