#   Copyright (C) 2003, 2004, 2005, 2006, 2008, 2012

#   Rocky Bernstein <rocky@gnu.org>

#

#   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/>.

#

# Common routines and setup for regression testing.

SKIP_TEST_EXITCODE=77

# Some output changes depending on TZ and locale. Set this so we get known

# results

TZ=CUT

# both 'en_US' and 'en_US.utf8' might be defined on some platforms

if locale -a >/dev/null 2>&1 ; then 

  # Note: Solaris 10's shell can't handle $(..) so we use `...`

  LC_TIME=`locale -a | grep 'en_US' | grep -v 'utf8' | grep -v 'iso88591' &2>/dev/null`

fi

[ -z "$LC_TIME" ] && {

  LC_TIME=${LC_TIME:-en_US}

}>/dev/null 2>&1

export TZ LC_TIME

DIFF="/usr/bin/diff"

DIFF_OPTS=" -w --unified"

RM="rm -f"

check_result() {

  RC=$1

  shift

  msg=$1

  shift

  cmdline="$cmd $*"

  if test $RC -ne 0 ; then 

    if test $RC -ne $SKIP_TEST_EXITCODE ; then

      echo "$0: $msg failed."

      if test -n "$cmdline" ; then 

        echo "$0: failed command:"

        echo "	$cmdline"

      fi

      exit $RC

    else 

      echo "-- $0: $msg skipped."

    fi

  else 

    echo "-- $0: $msg ok."

  fi

}

test_common() {

  cmdname="$1"

  cmd="../src/${cmdname}"

  opts="$2"

  outfile="$3"

  rightfile="$4"

  if [ ! -x "${cmd}" ]; then

    echo "-- $0: No ${cmd}"

    return 1

  fi

  cmdline="${cmd}"

  if "${cmd}" --no-header ${opts} >"${outfile}" 2>&1 ; then 

    if test "/usr/bin/diff" != no; then

      if /usr/bin/diff  -w --unified "${outfile}" "${rightfile}" ; then

	rm -f "${outfile}"

	return 0

      else

	return 3

      fi

    else

      echo "$0: No diff(1) or cmp(1) found - cannot test ${cmdname}"

      rm -f "${outfile}"

      return $SKIP_TEST_EXITCODE

    fi

  else

    echo "$0 failed running: ${cmdname} ${opts}"

    return 2

  fi

}

test_cdinfo() {

  test_common cd-info "$@"

}

test_iso_info() {

  test_common iso-info "$@"

}

test_cd_read() {

  test_common cd-read "$@"

}

test_iso_read() {

  # not test_common, as we use an output file not stdout.

  opts="$1"

  outfile="$2"

  rightfile="$3"

  ISO_READ="../src/iso-read"

  if [ ! -x ${ISO_READ} ]; then

    echo "-- $0: No ${ISO_READ}"

    return 1

  fi

  if "${ISO_READ}" ${opts} -o "${outfile}" 2>&1 ; then 

    if test "/usr/bin/diff" != no; then

      if /usr/bin/diff  -w --unified "${outfile}" "${rightfile}" ; then

	rm -f "${outfile}"

	return 0

      else

	return 3

      fi

    else

      echo "$0: No diff(1) or cmp(1) found - cannot test ${ISO_READ}"

      rm -f "${outfile}"

      return 77

    fi

  else

    echo "$0 failed running: ${ISO_READ} ${opts} -o ${outfile}"

    return 2

  fi

}

test_legal_header() {

  cmdname="$1"

  cmd="../src/${cmdname}"

  opts="$2"

  outfile="$3"

  if test "/bin/grep" = no; then

    echo "$0: No grep(1) found - cannot test ${cmd}."

    echo "$0: Legal header test skipped."

    exit $SKIP_TEST_EXITCODE

  fi

  "${cmd}" ${opts} > ${outfile} 2>&1

  while read line; do

    /bin/grep "${line}" ${outfile} >/dev/null 2>&1

    if [ "$?" -ne 0 ] ; then

      echo "$0: Legal header test failed due to missing expected line:"

      echo "  ${line}"

      echo "$0: Failed command:"

      echo "  ${cmd} ${opts}"

      exit 4

    fi

  done < ${srcdir}/check_legal.regex

  rm -f ${outfile}

  echo "-- $0: Legal header of ${cmd} ${opts} ok."

}

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