lstat_cache(): print a warning if doing ping-pong between cache types

diff --git a/t/t7003-filter-branch.sh b/t/t7003-filter-branch.sh
index b0a9d7d536314ec842b141c09ba0d6f8b06b6288..cb0474336d66302d9c7cf003bcdeadacb789aa8a 100755 (executable)
--- a/t/t7003-filter-branch.sh
+++ b/t/t7003-filter-branch.sh
@@ -39,7 +39,9 @@ test_expect_success 'result is really identical' '
 '
 
 test_expect_success 'rewrite bare repository identically' '
-       (git config core.bare true && cd .git && git filter-branch branch)
+       (git config core.bare true && cd .git &&
+        git filter-branch branch > filter-output 2>&1 &&
+       ! fgrep fatal filter-output)
 '
 git config core.bare false
 test_expect_success 'result is really identical' '
@@ -262,4 +264,12 @@ test_expect_success 'Tag name filtering allows slashes in tag names' '
        test_cmp expect actual
 '
 
+test_expect_success 'Prune empty commits' '
+       git rev-list HEAD > expect &&
+       make_commit to_remove &&
+       git filter-branch -f --index-filter "git update-index --remove to_remove" --prune-empty HEAD &&
+       git rev-list HEAD > actual &&
+       test_cmp expect actual
+'
+
 test_done