CMAKE_MODULE_PATH is usually a list instead of single entry. Especially
for projects contain sub cmake projects. My patch replace the
CMAKE_MODULE_PATH with fixed path, to locate the `.in` file.
Use lcov/gcov to gather coverage info for the tests (Only works with gcc/clang and make).
cmake -DEVENT__COVERAGE=1 -DCMAKE_BUILD_TYPE=Debug ..
make
make verify_coverage
Current coverage (run on debian):
Line coverage 79.1 % 10231 / 12939
Function coverage 86.1 % 933 / 1083