1 2traps=$(${SH} -c 'trap "echo bad" 0; trap - 0; trap') 3[ -z "$traps" ] || exit 1 4traps=$(${SH} -c 'trap "echo bad" 0; trap "" 0; trap') 5expected_traps=$(${SH} -c 'trap "" EXIT; trap') 6[ "$traps" = "$expected_traps" ] || exit 2 7traps=$(${SH} -c 'trap "echo bad" 0; trap 0; trap') 8[ -z "$traps" ] || exit 3 9traps=$(${SH} -c 'trap "echo bad" 0; trap -- 0; trap') 10[ -z "$traps" ] || exit 4 11traps=$(${SH} -c 'trap "echo bad" 0 1 2; trap - 0 1 2; trap') 12[ -z "$traps" ] || exit 5 13traps=$(${SH} -c 'trap "echo bad" 0 1 2; trap "" 0 1 2; trap') 14expected_traps=$(${SH} -c 'trap "" EXIT HUP INT; trap') 15[ "$traps" = "$expected_traps" ] || exit 6 16traps=$(${SH} -c 'trap "echo bad" 0 1 2; trap 0 1 2; trap') 17[ -z "$traps" ] || exit 7 18traps=$(${SH} -c 'trap "echo bad" 0 1 2; trap -- 0 1 2; trap') 19[ -z "$traps" ] || exit 8 20