I'm trying to port my ROS code to using the newer ROS Kinetic. I have a Docker container with Ubuntu 16.04, which I have ROS Kinetic setup. There is one particular unit test (involving the use of ActionLib) which now fails, giving me the following error:

C++ exception with description "std::bad_alloc" thrown in the test fixture's constructor.

I want to debug this by connecting the gdb debugger and setting a break point on std::bad_alloc::bad_alloc constructor. The test is defined in my CMakeLists in a add_rostest_gtest() call. This is my launch file:

<launch>
  <test test-name="transition_query_client_test" pkg="intra_sector_planner" type="transition_query_client_test" />
</launch>

I've tried adding output="screen" launch-prefix="xterm -e gdb --args" but I get an error saying I cannot use the output tag with the test tag.

Is this possible?