t/t4011-diff-symlink.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2005 Johannes Schindelin
   4 #
   5
   6 test_description='Test diff of symlinks.
   7
   8 '
   9 . ./test-lib.sh
  10 . "$TEST_DIRECTORY"/diff-lib.sh
  11
  12 if ! test_have_prereq SYMLINKS
  13 then
  14         say 'Symbolic links not supported, skipping tests.'
  15         test_done
  16 fi
  17
  18 cat > expected << EOF
  19 diff --git a/frotz b/frotz
  20 new file mode 120000
  21 index 0000000..7c465af
  22 --- /dev/null
  23 +++ b/frotz
  24 @@ -0,0 +1 @@
  25 +xyzzy
  26 \ No newline at end of file
  27 EOF
  28
  29 test_expect_success \
  30     'diff new symlink' \
  31     'ln -s xyzzy frotz &&
  32     git update-index &&
  33     tree=$(git write-tree) &&
  34     git update-index --add frotz &&
  35     GIT_DIFF_OPTS=--unified=0 git diff-index -M -p $tree > current &&
  36     compare_diff_patch current expected'
  37
  38 test_expect_success \
  39     'diff unchanged symlink' \
  40     'tree=$(git write-tree) &&
  41     git update-index frotz &&
  42     test -z "$(git diff-index --name-only $tree)"'
  43
  44 cat > expected << EOF
  45 diff --git a/frotz b/frotz
  46 deleted file mode 120000
  47 index 7c465af..0000000
  48 --- a/frotz
  49 +++ /dev/null
  50 @@ -1 +0,0 @@
  51 -xyzzy
  52 \ No newline at end of file
  53 EOF
  54
  55 test_expect_success \
  56     'diff removed symlink' \
  57     'rm frotz &&
  58     git diff-index -M -p $tree > current &&
  59     compare_diff_patch current expected'
  60
  61 cat > expected << EOF
  62 diff --git a/frotz b/frotz
  63 EOF
  64
  65 test_expect_success \
  66     'diff identical, but newly created symlink' \
  67     'sleep 3 &&
  68     ln -s xyzzy frotz &&
  69     git diff-index -M -p $tree > current &&
  70     compare_diff_patch current expected'
  71
  72 cat > expected << EOF
  73 diff --git a/frotz b/frotz
  74 index 7c465af..df1db54 120000
  75 --- a/frotz
  76 +++ b/frotz
  77 @@ -1 +1 @@
  78 -xyzzy
  79 \ No newline at end of file
  80 +yxyyz
  81 \ No newline at end of file
  82 EOF
  83
  84 test_expect_success \
  85     'diff different symlink' \
  86     'rm frotz &&
  87     ln -s yxyyz frotz &&
  88     git diff-index -M -p $tree > current &&
  89     compare_diff_patch current expected'
  90
  91 test_expect_success \
  92     'diff symlinks with non-existing targets' \
  93     'ln -s narf pinky &&
  94     ln -s take\ over brain &&
  95     test_must_fail git diff --no-index pinky brain > output 2> output.err &&
  96     grep narf output &&
  97     ! grep error output.err'
  98 test_done