1#!/bin/sh
2# Show that wc's --total option works.
3
4# Copyright (C) 2022-2023 Free Software Foundation, Inc.
5
6# This program is free software: you can redistribute it and/or modify
7# it under the terms of the GNU General Public License as published by
8# the Free Software Foundation, either version 3 of the License, or
9# (at your option) any later version.
10
11# This program is distributed in the hope that it will be useful,
12# but WITHOUT ANY WARRANTY; without even the implied warranty of
13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14# GNU General Public License for more details.
15
16# You should have received a copy of the GNU General Public License
17# along with this program.  If not, see <https://www.gnu.org/licenses/>.
18
19. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
20print_ver_ wc
21require_sparse_support_ # for 'truncate --size=$BIG'
22getlimits_
23
24printf '%s\n' '2' > 2b || framework_failure_
25printf '%s\n' '2 words' > 2w || framework_failure_
26
27returns_ 1 wc --total 2b 2w > out || fail=1
28
29wc --total=never 2b 2w > out || fail=1
30cat <<\EOF > exp || framework_failure_
31 1  1  2 2b
32 1  2  8 2w
33EOF
34compare exp out || fail=1
35
36wc --total=only 2b 2w > out || fail=1
37cat <<\EOF > exp || framework_failure_
382 3 10
39EOF
40compare exp out || fail=1
41
42wc --total=always 2b > out || fail=1
43test "$(wc -l < out)" = 2 || fail=1
44
45if truncate -s 2E big; then
46  if test "$UINTMAX_MAX" = '18446744073709551615'; then
47    # Ensure overflow is diagnosed
48    returns_ 1 wc --total=only -c big big big big big big big big \
49      > out || fail=1
50
51    # Ensure total is saturated
52    printf '%s\n' "$UINTMAX_MAX" > exp || framework_failure_
53    compare exp out || fail=1
54
55    # Ensure overflow is ignored if totals not shown
56    wc --total=never -c big big big big big big big big || fail=1
57  fi
58fi
59
60Exit $fail
61