f"SYSTEMD_UNIT_PATH=/usr/lib/systemd/tests/testdata/testsuite-{args.test_number}.units:/usr/lib/systemd/tests/testdata/units:",
f"systemd.unit={test_unit}",
]),
+ '--credential', f"journal.storage={'persistent' if sys.stderr.isatty() else 'runtime'}" ,
*args.mkosi_args,
'qemu',
*(['-no-reboot'] if not sys.stderr.isatty() else [])