tests/misc/nproc-positive.sh

   1 #!/bin/sh
   2 # Ensure that nproc prints a number > 0
   3
   4 # Copyright (C) 2009-2016 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 <http://www.gnu.org/licenses/>.
  18
  19 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  20 print_ver_ nproc
  21
  22 for mode in --all ''; do
  23     procs=$(nproc $mode)
  24     test "$procs" -gt 0 || fail=1
  25 done
  26
  27 for i in -1000 0 1 1000; do
  28     procs=$(OMP_NUM_THREADS=$i nproc)
  29     test "$procs" -gt 0 || fail=1
  30 done
  31
  32 for i in 0 ' 1' 1000; do
  33     procs=$(nproc --ignore="$i")
  34     test "$procs" -gt 0 || fail=1
  35 done
  36
  37 for i in -1 N; do
  38     returns_ 1 nproc --ignore=$i || fail=1
  39 done
  40
  41 procs=$(OMP_NUM_THREADS=42 nproc --ignore=40)
  42 test "$procs" -eq 2 || fail=1
  43
  44 Exit $fail