tests/ln/misc.sh

   1 #!/bin/sh
   2 # Miscellaneous tests for "ln".
   3
   4 # Copyright (C) 1998-2016 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 <http://www.gnu.org/licenses/>.
  18
  19 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  20 print_ver_ ln
  21
  22 t=tln-symlink
  23 d=tln-subdir
  24 ld=tln-symlink-to-subdir
  25 f=tln-file
  26
  27 # Create a simple symlink with both source and destination files
  28 # in current directory.
  29 touch $f || framework_failure_
  30 rm -f $t || framework_failure_
  31 ln -s $f $t || fail=1
  32 test -f $t || fail=1
  33 rm $t $f
  34
  35 # Create a symlink with source file and explicit destination directory/file.
  36 touch $f || framework_failure_
  37 rm -rf $d || framework_failure_
  38 mkdir $d || framework_failure_
  39 ln -s ../$f $d/$t || fail=1
  40 test -f $d/$t || fail=1
  41 rm -rf $d $f
  42
  43 # Create a symlink with source file and destination directory.
  44 touch $f || framework_failure_
  45 rm -rf $d || framework_failure_
  46 mkdir $d || framework_failure_
  47 ln -s ../$f $d || fail=1
  48 test -f $d/$f || fail=1
  49 rm -rf $d $f
  50
  51 # See whether a trailing slash is followed too far.
  52 touch $f || framework_failure_
  53 rm -rf $d || framework_failure_
  54 mkdir $d $d/$f || framework_failure_
  55 returns_ 1 ln $f $d/ 2> /dev/null || fail=1
  56 returns_ 1 ln -s $f $d/ 2> /dev/null || fail=1
  57 rm -rf $d $f
  58
  59 # Make sure we get a failure with existing dest without -f option
  60 touch $t || framework_failure_
  61 # FIXME: don't ignore the error message but rather test
  62 # it to make sure it's the right one.
  63 returns_ 1 ln -s $t $t 2> /dev/null || fail=1
  64 rm $t
  65
  66 # Make sure -sf fails when src and dest are the same
  67 touch $t || framework_failure_
  68 returns_ 1 ln -sf $t $t 2> /dev/null || fail=1
  69 rm $t
  70
  71 # Create a symlink with source file and no explicit directory
  72 rm -rf $d || framework_failure_
  73 mkdir $d || framework_failure_
  74 touch $d/$f || framework_failure_
  75 ln -s $d/$f || fail=1
  76 test -f $f || fail=1
  77 rm -rf $d $f
  78
  79 # Create a symlink with source file and destination symlink-to-directory.
  80 rm -rf $d $f $ld || framework_failure_
  81 touch $f || framework_failure_
  82 mkdir $d || framework_failure_
  83 ln -s $d $ld
  84 ln -s ../$f $ld || fail=1
  85 test -f $d/$f || fail=1
  86 rm -rf $d $f $ld
  87
  88 # Create a symlink with source file and destination symlink-to-directory.
  89 # BUT use the new --no-dereference option.
  90 rm -rf $d $f $ld || framework_failure_
  91 touch $f || framework_failure_
  92 mkdir $d || framework_failure_
  93 ln -s $d $ld
  94 af=$(pwd)/$f
  95 ln --no-dereference -fs "$af" $ld || fail=1
  96 test -f $ld || fail=1
  97 rm -rf $d $f $ld
  98
  99 # Try to create a symlink with backup where the destination file exists
 100 # and the backup file name is a hard link to the destination file.
 101 touch a b || framework_failure_
 102 ln b b~ || framework_failure_
 103 ln -f --b=simple a b || fail=1
 104
 105 # ===================================================
 106
 107 # Make sure ln can make simple backups.
 108 # This was fixed in 4.0.34.  Broken in 4.0r.
 109 for cmd in ln cp mv ginstall; do
 110   rm -rf a x a.orig
 111   touch a x || framework_failure_
 112   $cmd --backup=simple --suffix=.orig x a || fail=1
 113   test -f a.orig || fail=1
 114 done
 115
 116 # ===================================================
 117 # With coreutils-5.2.1, this would mistakenly access argv[1][-1].
 118 # I'm including it here, in case some day programs like valgrind detect that.
 119 # Purify probably would have done so.
 120 ln foo '' 2> /dev/null
 121
 122 # ===================================================
 123
 124 Exit $fail