tests/split/b-chunk.sh

   1 #!/bin/sh
   2 # test splitting into 3 chunks
   3
   4 # Copyright (C) 2010-2024 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 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  20 print_ver_ split
  21
  22 # N can be greater than the file size
  23 # in which case no data is extracted, or empty files are written
  24 split -n 10 /dev/null || fail=1
  25 test "$(stat -c %s x* | uniq -c | sed 's/^ *//; s/ /x/')" = "10x0" || fail=1
  26 rm -f x??
  27
  28 printf 'abc' > abc || framework_failure_
  29 printf 'a' > exp-a || framework_failure_
  30 printf 'b' > exp-b || framework_failure_
  31 printf 'c' > exp-c || framework_failure_
  32 printf 'ab' > exp-ab || framework_failure_
  33 split -n 4 abc || fail=1
  34 compare exp-a xaa || fail=1
  35 compare exp-b xab || fail=1
  36 compare exp-c xac || fail=1
  37 compare /dev/null xad || fail=1
  38 test ! -f xae || fail=1
  39 rm -f x??
  40 split -n 2 abc || fail=1
  41 compare exp-ab xaa || fail=1
  42 compare exp-c xab || fail=1
  43 test ! -f xac || fail=1
  44 rm -f x??
  45
  46 # When extracting K of N where N > file size
  47 # no data is extracted, and no files are written
  48 split -n 2/3 /dev/null || fail=1
  49 returns_ 1 stat x?? 2>/dev/null || fail=1
  50
  51 # Ensure --elide-empty-files is honored
  52 split -e -n 10 /dev/null || fail=1
  53 returns_ 1 stat x?? 2>/dev/null || fail=1
  54
  55 printf '1\n2\n3\n4\n5\n' > input || framework_failure_
  56 printf '1\n2\n' > exp-1 || framework_failure_
  57 printf '3\n4' > exp-2 || framework_failure_
  58 printf '\n5\n' > exp-3 || framework_failure_
  59
  60 for file in input /proc/version /sys/kernel/profiling; do
  61   test -f $file || continue
  62
  63   for blksize in 1 2 4096; do
  64     if ! test "$file" = 'input'; then
  65       # For /proc like files we must be able to read all
  66       # into the internal buffer to be able to determine size.
  67       test "$blksize" = 4096 || continue
  68     fi
  69
  70     split -n 3 ---io-blksize=$blksize $file > out || fail=1
  71     split -n 1/3 ---io-blksize=$blksize $file > b1 || fail=1
  72     split -n 2/3 ---io-blksize=$blksize $file > b2 || fail=1
  73     split -n 3/3 ---io-blksize=$blksize $file > b3 || fail=1
  74
  75     case $file in
  76       input)
  77         compare exp-1 xaa || fail=1
  78         compare exp-2 xab || fail=1
  79         compare exp-3 xac || fail=1
  80         ;;
  81     esac
  82
  83     compare xaa b1 || fail=1
  84     compare xab b2 || fail=1
  85     compare xac b3 || fail=1
  86     cat xaa xab xac | compare - $file || fail=1
  87     test -f xad && fail=1
  88   done
  89 done
  90
  91 Exit $fail