#! /bin/sh

# test that the empty file means no pattern

# and an empty pattern means match all.

#

# Copyright (C) 2001, 2006, 2009-2017 Free Software Foundation, Inc.

#

# Copying and distribution of this file, with or without modification,

# are permitted in any medium without royalty provided the copyright

# notice and this notice are preserved.

. "${srcdir=.}/init.sh"; path_prepend_ ../src

require_timeout_

failures=0

for locale in C en_US.UTF-8; do

    for options in '-E' '-F'; do

        # should return 0 found a match

        echo "" | LC_ALL=$locale timeout 10s grep $options -e ''

        if test $? -ne 0 ; then

          echo "Status: Wrong status code, test \#1 failed ($options $locale)"

          failures=1

        fi

        # should return 1 found no match

        echo abcd | LC_ALL=$locale timeout 10s grep $options -f /dev/null

        if test $? -ne 1 ; then

          echo "Status: Wrong status code, test \#2 failed ($options $locale)"

          failures=1

        fi

        # should return 0 found a match

        echo abcd \

            | LC_ALL=$locale timeout 10s grep $options -f /dev/null -e abcd

        if test $? -ne 0 ; then

          echo "Status: Wrong status code, test \#3 failed ($options $locale)"

          failures=1

        fi

        # should return 0 found a match

        echo "" | LC_ALL=$locale timeout 10s grep $options -e ''

        if test $? -ne 0 ; then

          echo "Status: Wrong status code, test \#4 failed ($options $locale)"

          failures=1

        fi

        # should return 0 found a match

        echo abcd | LC_ALL=$locale timeout 10s grep $options -e ''

        if test $? -ne 0 ; then

          echo "Status: Wrong status code, test \#5 failed ($options $locale)"

          failures=1

        fi

    done

    for options in '-E -w' '-E -x' '-E -w -x' '-F -w' '-F -x' '-F -w -x'; do

        # should return 0 found a match

        echo "" | LC_ALL=$locale timeout 10s grep $options -e ''

        if test $? -ne 0 ; then

          echo "Status: Wrong status code, test \#6 failed ($options $locale)"

          failures=1

        fi

        # should return 1 found no match

        echo abcd | LC_ALL=$locale timeout 10s grep $options -f /dev/null

        if test $? -ne 1 ; then

          echo "Status: Wrong status code, test \#7 failed ($options $locale)"

          failures=1

        fi

        # should return 1 found no match

        echo abcd | LC_ALL=$locale timeout 10s grep $options -f /dev/null -e ""

        if test $? -ne 1 ; then

          echo "Status: Wrong status code, test \#8 failed ($options $locale)"

          failures=1

        fi

    done

done

Exit $failures