1 files changed, 52 insertions, 0 deletions
diff --git a/tests/du/bigtime.sh b/tests/du/bigtime.sh
new file mode 100755
index 0000000..761ac0c
--- /dev/null
+++ b/tests/du/bigtime.sh
@@ -0,0 +1,52 @@
+#!/bin/sh
+# Exercise du on a file with a big timestamp.
+
+# Copyright (C) 2010-2020 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/>.
+
+. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
+print_ver_ du
+
+export LC_ALL=C
+export TZ=UTC0
+
+# 2**63 - 1
+bignum=9223372036854775807
+
+touch -d @$bignum future 2>/dev/null &&
+future_time=$(ls -l future) &&
+case "$future_time" in
+*" $bignum "*)
+  : ;;
+*' Dec  4  300627798676 '*)
+  skip_ "file system and localtime both handle big timestamps" ;;
+*)
+  skip_ "file system or localtime mishandles big timestamps:" \
+      "$future_time" ;;
+esac || skip_ "file system cannot represent big timestamps"
+
+printf "0\t$bignum\tfuture\n" > exp || framework_failure_
+printf "du: time '$bignum' is out of range\n" > err_ok || framework_failure_
+
+du --time future >out 2>err || fail=1
+
+# On some systems an empty file occupies 4 blocks.
+# Map the number of blocks to 0.
+sed 's/^[0-9][0-9]*/0/' out > k && mv k out
+
+compare exp out || fail=1
+compare err err_ok || fail=1
+
+Exit $fail