tests/mv/i-3.sh

   1 #!/bin/sh
   2 # Make sure that 'mv file unwritable-file' prompts the user
   3 # and that 'mv -f file unwritable-file' doesn't.
   4
   5 # Copyright (C) 2001-2024 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 <https://www.gnu.org/licenses/>.
  19
  20 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  21 print_ver_ mv
  22 require_controlling_input_terminal_
  23 skip_if_root_
  24 trap '' TTIN # Ignore SIGTTIN
  25
  26 uname -s | grep 'BSD$' && skip_ 'known spurious failure on *BSD'
  27
  28 touch f g h i || framework_failure_
  29 chmod 0 g i || framework_failure_
  30
  31
  32 ls /dev/stdin >/dev/null 2>&1 \
  33   || skip_ 'there is no /dev/stdin file'
  34
  35 # work around a dash bug when redirecting
  36 # from symlinked ttys in the background
  37 tty=$(readlink -f /dev/stdin)
  38
  39 test -r "$tty" 2>&1 \
  40   || skip_ '/dev/stdin is not readable'
  41
  42 # Terminate any background processes
  43 cleanup_() { kill $pid 2>/dev/null && wait $pid; }
  44
  45 mv f g < $tty > out 2>&1 & pid=$!
  46
  47 # Test for the expected prompt; sleep upon non-match.
  48 check_overwrite_prompt()
  49 {
  50   local delay="$1"
  51   case "$(cat out)" in
  52     "mv: replace 'g', overriding mode 0000"*) ;;
  53     *) sleep $delay; return 1;;
  54   esac
  55 }
  56
  57 # Wait for up to 12.7 seconds for the expected prompt.
  58 retry_delay_ check_overwrite_prompt .1 7 || { fail=1; cat out; }
  59
  60 cleanup_
  61
  62 mv -f h i > out 2>&1 || fail=1
  63 test -f i || fail=1
  64 test -f h && fail=1
  65
  66 # Make sure there was no prompt.
  67 case "$(cat out)" in
  68   '') ;;
  69   *) fail=1 ;;
  70 esac
  71
  72 Exit $fail