[Unit]
Description=Test for RuntimeDirectory owner (must not be the default group of the user if Group is set)
[Service]
ExecStart=/bin/sh -x -c 'group=$$(stat -c %%G /tmp/test-exec_runtimedirectory-owner); test "$$group" = "nobody"'
Type=oneshot
Group=nobody
User=root
RuntimeDirectory=test-exec_runtimedirectory-owner