src/du-tests

   1 #!/bin/bash
   2
   3 # Copyright (C) 2003-2024 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 3 of the License, or
   8 # (at your option) 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, see <https://www.gnu.org/licenses/>.
  17
  18 cat - <<\EOF > /dev/null
  19 Invoke e.g., like this
  20 VG_PATH_PREFIX=/cu/src/vg: DU1=/cu/src/du DU2=/usr/bin/du ./du-tests
  21 Where /cu/src/vg/du is a valgrind wrapper around du,
  22 and DU1 refers to the just-built du binary you want to test.
  23 EOF
  24
  25 test -z "$DU1" && { echo DU1 envvar not set 1>&2; exit 1; }
  26 test -z "$DU2" && { echo DU2 envvar not set 1>&2; exit 1; }
  27
  28 test -x "$DU1" || { echo $DU1 not executable 1>&2; exit 1; }
  29 test -x "$DU2" || { echo $DU2 not executable 1>&2; exit 1; }
  30
  31 # Expects $DU1 and $DU2 to be the binaries to compare.
  32 d1=$(mktemp -d)
  33 cp -a $DU1 $d1/du
  34 d2=$(mktemp -d)
  35 cp -a $DU2 $d2/du
  36
  37 for args in  \
  38     '-Sa .' \
  39     '-Sa ../..' \
  40     '-Sa a' \
  41     '-Sa /tmp /t' \
  42     '-Sa /tmp' \
  43     '/tmp /t' \
  44     '-a /tmp /t' \
  45     '-a a' \
  46     '-ca .' \
  47     '-ca ..' \
  48     '-ca ../..' \
  49     '-ca /tmp /t' \
  50     '-ca /tmp' \
  51     '-ca a' \
  52   ; do
  53   echo Args: $args ======================
  54   diff -u --label=$DU1 --label=$DU2 \
  55     <(PATH=$VG_PATH_PREFIX$d1 du $args 2>&1) <(PATH=$d2 du $args 2>&1)
  56 done
  57 rm -rf $d1 $d2