tests/tail-2/assert-2

   1 #!/bin/sh
   2 # This variant of `assert' would get a UMR reliably in 2.0.9.
   3 # Due to a race condition in the test, the `assert' script would get
   4 # the UMR on Solaris only some of the time, and not at all on Linux/GNU.
   5
   6 # Copyright (C) 2000, 2006-2011 Free Software Foundation, Inc.
   7
   8 # This program is free software: you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation, either version 3 of the License, or
  11 # (at your option) any later version.
  12
  13 # This program is distributed in the hope that it will be useful,
  14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 # GNU General Public License for more details.
  17
  18 # You should have received a copy of the GNU General Public License
  19 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20
  21 . "${srcdir=.}/init.sh"; path_prepend_ ../src
  22 print_ver_ tail
  23
  24 # Not "expensive" per se, but sleeping for so long is annoying.
  25 very_expensive_
  26
  27 ok='ok ok ok'
  28
  29 touch a
  30 tail --follow=name a foo > err 2>&1 &
  31 tail_pid=$!
  32 # Arrange for the tail process to die after 12 seconds.
  33 (sleep 12; kill $tail_pid) &
  34 echo $ok > f
  35 echo sleeping for 7 seconds...
  36 sleep 7
  37 mv f foo
  38
  39 # echo waiting....
  40 wait
  41
  42 case "`cat err`" in
  43   *$ok) ;;
  44   *) fail=1;;
  45 esac
  46
  47 test $fail = 1 && cat err
  48
  49 Exit $fail