#! /bin/sh
# Copyright (C) 2011-2021 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/>.

# TAP support:
#  - a test script terminated by a signal causes an hard error

. test-init.sh

fetch_tap_driver

plan_ 10

cat >> configure.ac <<END
AC_OUTPUT
END

cat > Makefile.am << END
TEST_LOG_DRIVER = \$(srcdir)/tap-driver
TEST_LOG_COMPILER = $PERL -w
## Will be updated later.
TESTS =
END

all_signals='1 2 3 9 13 15'
blocked_signals=''
for sig in $all_signals; do
  # Ignore blocked signals
  if is_blocked_signal $sig; then
    blocked_signals="$blocked_signals $sig"
    continue
  fi
  # Write the dummy test scripts in perl, not as shell scripts, to work
  # around unportabilities in the handling of signals (in fact, even
  # with bash, the older script were unable to properly deliver a SIGQUIT
  # to themselves consistently).  The shebang is dummy here, as we prefer
  # to rely on the definition of TEST_LOG_COMPILER instead.
  unindent > signal-$sig.test <<END
    #! /usr/bin/env perl
    # We need autoflush to avoid losing output, which could cause spurious
    # "no test plan seen" in the TAP driver.
    BEGIN { $| = 1 }
    use warnings FATAL => "all";
    print "1..1\\n";
    print "ok 1\\n";
    kill $sig, \$\$;
    print "Bail out! \$0 not killed?\\n";
END
  echo TESTS += signal-$sig.test >> Makefile.am
done
results_count=$(ls *.test | wc -l | tr -d "$tab$sp")

chmod a+x *.test

$ACLOCAL
$AUTOCONF
$AUTOMAKE

./configure

system=$(uname -s -r || echo unknown) # Needed later.

signal_caught ()
{
  numeric=$1
  case $numeric in
     1) symbolic=HUP;;
     2) symbolic=INT;;
     3) symbolic=QUIT;;
     9) symbolic=KILL;;
    13) symbolic=PIPE;;
    15) symbolic=TERM;;
     *) fatal_ "unexpected signal number '$numeric'"
  esac
  # Sending a SIGQUIT on Cygwin 1.5 can cause a segmentation fault
  # instead (sometimes).  Don't let this older bug pollute the results
  # of our testsuite.
  case $numeric,$system in
    3,CYGWIN*\ 1.5.*) sig_re="((SIG)?($symbolic|SEGV)|$numeric|11)";;
    *) sig_re="((SIG)?$symbolic|$numeric)";;
  esac
  wbound_re="($|[^a-zA-Z0-9_-])"
  pfx_re="^ERROR: signal-$numeric\\.test"
  rx="${pfx_re} .*terminated by signal ${sig_re}${wbound_re}"
  desc="TAP driver catch test termination by signal SIG${symbolic}"
  case " $blocked_signals " in
    *" $numeric "*) skip_ -r "SIG$symbolic is blocked" "$desc" ;;
    *) command_ok_ "$desc" env LC_ALL=C $EGREP "$rx" stdout ;;
  esac
}

command_ok_ '"make check" fails' eval '
  (
    run_make -e IGNORE -O check
    # Extra "echo" and silencing of xtraces required to avoid possible
    # garbled output with NetBSD make, which would miss some final
    # newlines in the expected places and thus mess up our TAP output.
    set +x; echo
    test $am_make_rc -gt 0
  )
'
cat stdout # For debugging.

command_ok_ "count of test results" count_test_results \
  total=$(($results_count * 2)) \
  pass=$results_count error=$results_count \
  fail=0 xpass=0 xfail=0 skip=0

for sig in $all_signals; do
  signal_caught $sig
done

echo 'TEST_LOG_DRIVER_FLAGS = --ignore-exit' >> Makefile

command_ok_ '"make check" passes [--ignore-exit]' run_make -O check

command_ok_ "count of test results [--ignore-exit]" count_test_results \
  total=$results_count pass=$results_count \
  fail=0 xpass=0 xfail=0 skip=0 error=0

: