1#!/bin/sh
2# test splitting into round-robin chunks
3
4# Copyright (C) 2010-2023 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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
20print_ver_ split
21
22# N can be greater than the file size
23# in which case no data is extracted, or empty files are written
24split -n r/10 /dev/null || fail=1
25test "$(stat -c %s x* | uniq -c | sed 's/^ *//; s/ /x/')" = "10x0" || fail=1
26rm x??
27
28# Ensure --elide-empty-files is honored
29split -e -n r/10 /dev/null || fail=1
30stat x?? 2>/dev/null && fail=1
31
32printf '1\n2\n3\n4\n5\n' > in || framework_failure_
33
34split -n r/3 in > out || fail=1
35compare /dev/null out || fail=1
36
37split -n r/1/3 in > r1 || fail=1
38split -n r/2/3 in > r2 || fail=1
39split -n r/3/3 in > r3 || fail=1
40
41printf '1\n4\n' > exp-1
42printf '2\n5\n' > exp-2
43printf '3\n' > exp-3
44
45compare exp-1 xaa || fail=1
46compare exp-2 xab || fail=1
47compare exp-3 xac || fail=1
48compare exp-1 r1 || fail=1
49compare exp-2 r2 || fail=1
50compare exp-3 r3 || fail=1
51test -f xad && fail=1
52
53# Test input without trailing \n
54printf '1\n2\n3\n4\n5' | split -n r/2/3 > out
55printf '2\n5' > exp
56compare exp out || fail=1
57
58# Ensure we fall back to appending to a file at a time
59# if we hit the limit for the number of open files.
60rm x*
61(ulimit -n 20 && yes | head -n90 | split -n r/30 ) || fail=1
62test "$(stat -c %s x* | uniq -c | sed 's/^ *//; s/ /x/')" = "30x6" || fail=1
63
64Exit $fail
65