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