tests/du/8gb

   1 #!/bin/sh
   2 # Ensure that du does not rely on narrow types like size_t for
   3 # file sizes or sums.
   4
   5 # Copyright (C) 2003, 2005-2008 Free Software Foundation, Inc.
   6
   7 # This program is free software: you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation, either version 3 of the License, or
  10 # (at your option) any later version.
  11
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 if test "$VERBOSE" = yes; then
  21   set -x
  22   du --version
  23 fi
  24
  25 . $srcdir/test-lib.sh
  26 require_sparse_support_
  27
  28 dd bs=1 seek=8G of=big < /dev/null 2> /dev/null
  29 if test $? != 0; then
  30   skip_test_ 'cannot create a file large enough for this test; possibly
  31 because file offsets are only 32 bits on this file system'
  32 fi
  33
  34 # FIXME: this should be a test of dd.
  35 # On some systems (at least linux-2.4.18 + NFS to disks on a Solaris system)
  36 # the `dd' command above mistakenly creates a file of length `0', yet
  37 # doesn't fail.  The root of that failure is that the ftruncate call
  38 # returns zero but doesn't do its job.  Detect this failure.
  39 set x `ls -gG big`
  40 size=$4
  41 if test "$size" = 0; then
  42   skip_test_ "cannot create a file large enough for this test
  43 possibly because this system's NFS support is buggy
  44 Consider rerunning this test on a different file system."
  45 fi
  46
  47 fail=0
  48
  49 # This would print `0   big' with coreutils-4.5.8.
  50 du -ab big > out || fail=1
  51
  52 cat <<\EOF > exp
  53 8589934592      big
  54 EOF
  55
  56 compare out exp || fail=1
  57
  58 Exit $fail