tests/misc/sort-continue.sh

   1 #!/bin/sh
   2 # Tests for file descriptor exhaustion.
   3
   4 # Copyright (C) 2009-2019 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_ sort
  21
  22 # Skip the test when running under valgrind.
  23 ( ulimit -n 6; sort 3<&- 4<&- 5<&- < /dev/null ) \
  24   || skip_ 'fd-limited sort failed; are you running under valgrind?'
  25
  26 for i in $(seq 31); do
  27   echo $i | tee -a in > __test.$i || framework_failure_
  28 done
  29
  30 # glob before ulimit to avoid issues on bash 3.2 on OS X 10.6.8 at least
  31 test_files=$(echo __test.*)
  32
  33 (
  34  ulimit -n 6
  35  sort -n -m $test_files 3<&- 4<&- 5<&- < /dev/null > out
  36 ) &&
  37 compare in out ||
  38   { fail=1; echo 'file descriptor exhaustion not handled' 1>&2; }
  39
  40 echo 32 | tee -a in > in1
  41 (
  42  ulimit -n 6
  43  sort -n -m $test_files - 3<&- 4<&- 5<&- < in1 > out
  44 ) &&
  45 compare in out || { fail=1; echo 'stdin not handled properly' 1>&2; }
  46
  47 Exit $fail