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#!/bin/sh
# Test 'test -N file'.
# Copyright (C) 2018-2022 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 <https://www.gnu.org/licenses/>.
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
print_ver_ test stat
stat_test_N() {
mtime=$(env stat -c '%.Y' "$1")
atime=$(env stat -c '%.X' "$1")
test "$mtime" = "$atime" && return 1
latest=$(printf '%s\n' "$mtime" "$atime" | sort -g | tail -n1)
test "$mtime" = "$latest"
}
# For a freshly touched file, atime should equal mtime: 'test -N' returns 1.
touch file || framework_failure_
if ! stat_test_N file; then
returns_ 1 env test -N file || fail=1
fi
# Set access time to 2 days ago: 'test -N' returns 0.
touch -a -d '12:00 today -2 days' file || framework_failure_
if stat_test_N file; then
env test -N file || fail=1
fi
# Set mtime to 2 days before atime: 'test -N' returns 1;
touch -m -d '12:00 today -4 days' file || framework_failure_
if ! stat_test_N file; then
returns_ 1 env test -N file || fail=1
fi
# Now modify the file: 'test -N' returns 0.
echo 'data' > file || framework_failure_
if stat_test_N file; then
env test -N file || fail=1
fi
Exit $fail
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