Teach git diff about BibTeX head hunk patterns

diff --git a/t/t7001-mv.sh b/t/t7001-mv.sh
index fa382c58da08a6eeca1aa51d4af47215e3e1c107..910a28c7e29b6dd8bd30d1ccb156681b44e51bca 100755 (executable)
--- a/t/t7001-mv.sh
+++ b/t/t7001-mv.sh
@@ -80,7 +80,7 @@ test_expect_success \
 
 test_expect_success \
     'do not move directory over existing directory' \
-    'mkdir path0 && mkdir path0/path2 && ! git mv path2 path0'
+    'mkdir path0 && mkdir path0/path2 && test_must_fail git mv path2 path0'
 
 test_expect_success \
     'move into "."' \
@@ -149,11 +149,65 @@ test_expect_success 'absolute pathname outside should fail' '(
        >sub/file &&
        git add sub/file &&
 
-       ! git mv sub "$out/out" &&
+       test_must_fail git mv sub "$out/out" &&
        test -d sub &&
        ! test -d ../in &&
        git ls-files --error-unmatch sub/file
 
 )'
 
+test_expect_success 'git mv should not change sha1 of moved cache entry' '
+
+       rm -fr .git &&
+       git init &&
+       echo 1 >dirty &&
+       git add dirty &&
+       entry="$(git ls-files --stage dirty | cut -f 1)"
+       git mv dirty dirty2 &&
+       [ "$entry" = "$(git ls-files --stage dirty2 | cut -f 1)" ] &&
+       echo 2 >dirty2 &&
+       git mv dirty2 dirty &&
+       [ "$entry" = "$(git ls-files --stage dirty | cut -f 1)" ]
+
+'
+
+rm -f dirty dirty2
+
+test_expect_success 'git mv should overwrite symlink to a file' '
+
+       rm -fr .git &&
+       git init &&
+       echo 1 >moved &&
+       ln -s moved symlink &&
+       git add moved symlink &&
+       test_must_fail git mv moved symlink &&
+       git mv -f moved symlink &&
+       ! test -e moved &&
+       test -f symlink &&
+       test "$(cat symlink)" = 1 &&
+       git update-index --refresh &&
+       git diff-files --quiet
+
+'
+
+rm -f moved symlink
+
+test_expect_success 'git mv should overwrite file with a symlink' '
+
+       rm -fr .git &&
+       git init &&
+       echo 1 >moved &&
+       ln -s moved symlink &&
+       git add moved symlink &&
+       test_must_fail git mv symlink moved &&
+       git mv -f symlink moved &&
+       ! test -e symlink &&
+       test -h moved &&
+       git update-index --refresh &&
+       git diff-files --quiet
+
+'
+
+rm -f moved symlink
+
 test_done