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#! /bin/sh
# test that the empty file means no pattern
# and an empty pattern means match all.
#
# Copyright (C) 2001, 2006, 2009 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=.}
failures=0
for options in '-E' '-E -w' '-F -x' '-G -w -x'; do
# should return 0 found a match
echo "" | ${GREP} $options -e '' > /dev/null 2>&1
if test $? -ne 0 ; then
echo "Status: Wrong status code, test \#1 failed ($options)"
failures=1
fi
# should return 1 found no match
echo "abcd" | ${GREP} $options -f /dev/null > /dev/null 2>&1
if test $? -ne 1 ; then
echo "Status: Wrong status code, test \#2 failed ($options)"
failures=1
fi
# should return 0 found a match
echo "abcd" | ${GREP} $options -f /dev/null -e "abcd" > /dev/null 2>&1
if test $? -ne 0 ; then
echo "Status: Wrong status code, test \#3 failed ($options)"
failures=1
fi
done
exit $failures
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