Generating a C++ Code Coverage Report with Colcon

asked 2020-06-19 21:44:26 -0600

allenh1

3045 ●62 ●89 ●110 http://allen-software.com/

Just trying to create something similar to the ROS 2 CI for code coverage (example here).

With colcon mixins, I've seen coverage-gcc under build mixins, but I'm not sure how to use it.

answered 2020-07-05 11:27:04 -0600

allenh1

3045 ●62 ●89 ●110 http://allen-software.com/

For those curious, I was able to do it by invoking colcon as follows.

colcon build --symlink-install --cmake-args -DCMAKE_BUILD_TYPE=Debug -DCMAKE_CXX_FLAGS="--coverage" -DCMAKE_CXX_OUTPUT_EXTENSION_REPLACE=ON

Then I ran the tests.

colcon test

Finally, I ran lcov.

lcov --capture --directory build/ --output-file my_fantastic_coverage_report.info

And generated fancy HTML with this.

genhtml my_fantastic_coverage_report.info --output-directory fancy_html_coverage_report

Then just sensible-browser fancy_html_coverage_report/index.html.

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Comments

For CI purposes, the following PR may be interesting: ros-industrial/industrial_ci/pull/504.

gvdhoorn ( 2020-07-05 11:42:54 -0600 )edit

The colcon mixin repository provides a mixinto generate C++ coverage (https://github.com/colcon/colcon-mixi...) which contains all the CMake arguments you need.

Dirk Thomas ( 2020-07-06 10:55:13 -0600 )edit

That's nice to get back the details of the commands but can you get back the CmakeModule to directly generate report as new target ?

TomSon ( 2021-11-05 10:23:18 -0600 )edit

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