src/du-tests

   1 #!/bin/bash
   2
   3 # Copyright (C) 2003, 2006 Free Software Foundation, Inc.
   4
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; either version 2, or (at your option)
   8 # any later version.
   9
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 # GNU General Public License for more details.
  14
  15 # You should have received a copy of the GNU General Public License
  16 # along with this program; if not, write to the Free Software Foundation,
  17 # Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18
  19 cat - <<\EOF > /dev/null
  20 Invoke e.g., like this
  21 VG_PATH_PREFIX=/cu/src/vg: DU1=/cu/src/du DU2=/usr/bin/du ./du-tests
  22 Where /cu/src/vg/du is a valgrind wrapper around du,
  23 and DU1 refers to the just-built du binary you want to test.
  24 EOF
  25
  26 test -z "$DU1" && { echo DU1 envvar not set 1>&2; exit 1; }
  27 test -z "$DU2" && { echo DU2 envvar not set 1>&2; exit 1; }
  28
  29 test -x "$DU1" || { echo $DU1 not executable 1>&2; exit 1; }
  30 test -x "$DU2" || { echo $DU2 not executable 1>&2; exit 1; }
  31
  32 # Expects $DU1 and $DU2 to be the binaries to compare.
  33 d1=$(mktemp -d)
  34 cp -a $DU1 $d1/du
  35 d2=$(mktemp -d)
  36 cp -a $DU2 $d2/du
  37
  38 for args in  \
  39     '-Sa .' \
  40     '-Sa ../..' \
  41     '-Sa a' \
  42     '-Sa /tmp /t' \
  43     '-Sa /tmp' \
  44     '/tmp /t' \
  45     '-a /tmp /t' \
  46     '-a a' \
  47     '-ca .' \
  48     '-ca ..' \
  49     '-ca ../..' \
  50     '-ca /tmp /t' \
  51     '-ca /tmp' \
  52     '-ca a' \
  53   ; do
  54   echo Args: $args ======================
  55   diff -u --label=$DU1 --label=$DU2 \
  56     <(PATH=$VG_PATH_PREFIX$d1 du $args 2>&1) <(PATH=$d2 du $args 2>&1)
  57 done
  58 rm -rf $d1 $d2