Make launch_testing.markers.retry_on_failure decorator more robust. (#352)
Make launch_testing.markers.retry_on_failure decorator more robust. (#352)

Signed-off-by: Michel Hidalgo <2c7f9fd20fbeb41ce8894ec4653d66fa7f3b6e1a@ekumenlabs.com>

ros2/launch,ros2/launch,ros2/launch