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coreutils/tests/cp/sparse

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#!/bin/sh
# Test cp --sparse=always
# Copyright (C) 2006-2008 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 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/>.
if test "$VERBOSE" = yes; then
set -x
cp --version
fi
. $srcdir/test-lib.sh
require_sparse_support_
# Create a sparse file.
# It has to be at least 128K in order to be sparse on some systems.
# Make its size one larger than 128K, in order to tickle the
# bug in coreutils-6.0.
size=`expr 128 \* 1024 + 1`
dd bs=1 seek=$size of=sparse < /dev/null 2> /dev/null || framework_failure
fail=0
cp --sparse=always sparse copy || fail=1
# Ensure that the copy has the same block count as the original.
test `stat --printf %b copy` -le `stat --printf %b sparse` || fail=1
(exit $fail); exit $fail