t/self-check-exit.tap

#! /bin/sh
# Copyright (C) 2011-2024 Free Software Foundation, Inc.
#
# 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 2, 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 <https://www.gnu.org/licenses/>.

# Sanity check for the automake testsuite.
# Check that, in case of failing commands, the correct exit status is
# passed to the exit trap installed by the 'test-init.sh' script.
# Also check that the 'errexit' shell flag is active.

am_create_testdir=no
. test-init.sh

plan_ 32

# This test becomes more cumbersome if we keep the 'errexit' shell flag
# set.  And removing it is no big deal, as this test is a TAP-based one,
# so that false positives remain very unlikely.
set +e

# It's especially important that the 'unset' is done before sourcing
# test-init.sh, i.e., when 'set -e' is not active yet, for the benefit
# of shells (like Bash 2.05 and Solaris 10 /bin/ksh) that returns a
# non-zero status when unsetting an already-unset variable.
# Add an extra newline at the end so that the aliases defined by
# test-init.sh can take effect.  Yes, this is truly required.
init="stderr_fileno_=2; unset am_explicit_skips;. test-init.sh${nl}"

# Required so that the code in test-init.sh doesn't go crazy trying to creating a
# temporary directory in the absolute dir of $AM_TEST_RUNNER_SHELL.
dummy_test_script=t/$me.sh

for st in 1 2 3 4 5 77 99 126 127 128 129 130 255; do
  for exit_cmd in "exit $st" "sh -c 'exit $st'"; do
    $AM_TEST_RUNNER_SHELL -c "$init $exit_cmd; :" "$dummy_test_script"
    command_ok_ "$exit_cmd" test $? -eq $st
  done
done

for sig in 1 2 13 15; do
  if is_blocked_signal $sig; then
    skip_ -r "signal $sig seems blocked"
    continue
  fi
  if test $sig -eq 2; then
    # Some Korn shells might otherwise get a spurious SIGINT when one is
    # sent to the child $AM_TEST_RUNNER_SHELL.  For more details, see:
    # <https://lists.gnu.org/archive/html/bug-autoconf/2011-09/msg00004.html>
    trap : 2
  fi
  $AM_TEST_RUNNER_SHELL -c "$init kill -$sig \$\$; :" "$dummy_test_script"
  rc=$?
  if test $sig -eq 2; then
    # Reset default SIGINT handler as portably as possible.
    trap 2 || trap - 2
  fi
  command_ok_ "kill -$sig" test $rc -eq 99
  unset rc
done

: Non-existent program.
$AM_TEST_RUNNER_SHELL -c "$init non-existent-prog; :" "$dummy_test_script"
command_ok_ "command not found" -- test $? -gt 0

: Non-executable command.
test -f Makefile && test ! -x Makefile || \
  framework_failure_ "no proper Makefile in the current directory"
$AM_TEST_RUNNER_SHELL -c "$init ./Makefile; :" "$dummy_test_script"
command_ok_ "permission denied" test $? -gt 0

: