With catkin, I can run tests and check results like so:

$ catkin run_tests --workspace $CATKIN_WS ; catkin_test_results $CATKIN_WS

These commands would produce junit-compliant reports satisfying the following FileSet globbing expressions:

• **/*gtest-*.xml
• **/*rostest-*.xml
• **/*rosunit-*.xml

The seemingly equivalent invocations for colcon, namely

$ colcon test ; colcon test-result --all

do not produce any reports satisfying the aforementioned FileSet.

How do I tell colcon to produce junit-compliant reports? Where does colcon write those reports?

References:

• Java FileSet: https://ant.apache.org/manual/Types/fileset.html
• catkin running unit tests: https://docs.ros.org/en/melodic/api/catkin/html/howto/format2/run_tests.html
• colcon verb test: https://colcon.readthedocs.io/en/released/reference/verb/test.html
• colcon verb test-result: https://colcon.readthedocs.io/en/released/reference/verb/test-result.html