Make builtin-rerere use of strbuf nicer and more efficient.

diff --git a/t/t2200-add-update.sh b/t/t2200-add-update.sh
index 61d08bb431ca18d6223e944cd4ca43fba6c1d332..eb1ced3c371ecaeab9d0dc14be888bf7df110483 100755 (executable)
--- a/t/t2200-add-update.sh
+++ b/t/t2200-add-update.sh
@@ -16,11 +16,12 @@ only the updates to dir/sub.'
 test_expect_success setup '
        echo initial >check &&
        echo initial >top &&
+       echo initial >foo &&
        mkdir dir1 dir2 &&
        echo initial >dir1/sub1 &&
        echo initial >dir1/sub2 &&
        echo initial >dir2/sub3 &&
-       git add check dir1 dir2 top &&
+       git add check dir1 dir2 top foo &&
        test_tick
        git-commit -m initial &&
 
@@ -76,4 +77,12 @@ test_expect_success 'change gets noticed' '
 
 '
 
+test_expect_success 'replace a file with a symlink' '
+
+       rm foo &&
+       ln -s top foo &&
+       git add -u -- foo
+
+'
+
 test_done