busybox/shell/ash_test/ash-signals/subshell.tests
Denys Vlasenko 8d2191c6ae ash: copy three tests from hush_test/hush-signals/*
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2017-07-24 19:42:46 +02:00

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# Non-empty traps should be reset in subshell
# HUP is special in interactive shells
trap '' HUP
# QUIT is always special
trap '' QUIT
# SYS is not special
trap '' SYS
# WINCH is harmless
trap 'bad: caught WINCH' WINCH
# With TERM we'll check whether it is reset
trap 'bad: caught TERM' TERM
(trap; "$THIS_SH" -c 'kill -HUP $PPID'; echo Ok)
(trap; "$THIS_SH" -c 'kill -QUIT $PPID'; echo Ok)
(trap; "$THIS_SH" -c 'kill -SYS $PPID'; echo Ok)
(trap; "$THIS_SH" -c 'kill -WINCH $PPID'; echo Ok)
(trap; "$THIS_SH" -c 'kill -TERM $PPID'; echo Bad: TERM is not reset)
echo Done