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Diffstat (limited to 'tests/trap.tests')
-rw-r--r-- | tests/trap.tests | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/tests/trap.tests b/tests/trap.tests new file mode 100644 index 0000000..4f808be --- /dev/null +++ b/tests/trap.tests @@ -0,0 +1,114 @@ +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# +# test the trap code + +trap 'echo exiting' 0 +trap 'echo aborting' 1 2 3 6 15 + +# make sure a user-specified subshell runs the exit trap, but does not +# inherit the exit trap from a parent shell +( trap 'echo subshell exit' 0; exit 0 ) +( exit 0 ) + +trap + +func() +{ + trap 'echo ${FUNCNAME:-$0}[$LINENO] funcdebug' DEBUG + echo funcdebug line +} + +trap 'echo [$LINENO] debug' DEBUG +echo debug line + +trap + +func + +trap + +trap 'echo ${FUNCNAME:-$0}[$LINENO] debug' DEBUG +func2() +{ + echo func2debug line +} +declare -ft func2 +func2 + +unset -f func2 + +trap '' DEBUG + +trap + +trap - debug + +trap + +trap - HUP +trap hup +trap '' INT +trap '' int + +trap + +# exit 0 in exit trap should set exit status +( +set -e +trap 'exit 0' EXIT +false +echo bad +) +echo $? + +# hmmm...should this set the handling to SIG_IGN for children, too? +trap '' USR2 +./trap1.sub +trap - USR2 + +# test ERR trap +./trap2.sub + +${THIS_SH} ./trap3.sub + +${THIS_SH} ./trap4.sub + +# This doesn't work right on all Unix versions +#${THIS_SH} ./trap5.sub + +# Return trap issues +${THIS_SH} ./trap6.sub + +# +# show that setting a trap on SIGCHLD is not disastrous. +# +set -o monitor + +trap 'echo caught a child death' SIGCHLD + +sleep 7 & sleep 6 & sleep 5 & + +# this will only catch the first, since there's a trap on SIGCHLD +wait + +trap -p SIGCHLD + +# Now reset some of the signals the shell handles specially back to +# their default values (with or without the SIG prefix) +trap - SIGINT QUIT TERM + +trap + +trap - SIGCHLD +wait |