#!/bin/sh
# Exercise timestamps.

# Copyright 2016 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/>.
# limit so don't run it by default.

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

TZ=UTC0
export TZ

# On platforms supporting time stamps outside gzip's range,
# test that gzip warns when converting them to gzip format.
for time in 190101010000 196912312359.59 197001010000 210602070628.16; do
  if touch -t $time in; then
     gzip in
     test $? = 2 || fail=1
  fi
  rm -f in.gz in
done

# Test that time stamps in range for gzip do not generate warnings.
for time in 197001010000.01 203801190314.07 203801190314.08 210602070628.15; do
  if touch -t $time in; then
     gzip in || fail=1
  fi
  rm -f in.gz in
done

# On platforms that fail to support time stamps within gzip's range,
# test that gzip warns when converting them from gzip format.
touch -t 210602070628.15 in || {
  printf '\037\213\10\0\377\377\377\377\0\377\3\0\0\0\0\0\0\0\0\0' >y2106.gz ||
    framework_failure_
  gzip -Nlv <y2106.gz
  test $? = 2 || fail=1
}

Exit $fail