tests/mv/into-self.sh

   1 #!/bin/sh
   2 # Demonstrate how mv fails when it tries to move a directory into itself.
   3
   4 # Copyright (C) 1998-2025 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 <https://www.gnu.org/licenses/>.
  18
  19 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  20 print_ver_ mv
  21
  22 dir=toself-dir
  23 file=toself-file
  24
  25 rm -rf $dir $file || framework_failure_
  26 mkdir -p $dir/a/b || framework_failure_
  27 touch $file || framework_failure_
  28
  29
  30 # This mv command should fail.
  31 mv $dir $file $dir > out 2>&1 && fail=1
  32
  33 sed \
  34    -e "s,mv:,XXX:," \
  35    -e "s,$dir,SRC," \
  36    -e "s,$dir/$dir,DEST," \
  37   out > out2
  38
  39 cat > exp <<\EOF
  40 XXX: cannot move 'SRC' to a subdirectory of itself, 'DEST'
  41 EOF
  42
  43 compare exp out2 || fail=1
  44
  45 # Make sure the file is gone.
  46 test -f $file && fail=1
  47 # Make sure the directory is *not* moved.
  48 test -d $dir || fail=1
  49 test -d $dir/$dir && fail=1
  50 # Make sure the file has been moved to the right place.
  51 test -f $dir/$file || fail=1
  52
  53 Exit $fail