test_prefix subdir_ceil_at_subdi_slash "sub/dir/"
-GIT_CEILING_DIRECTORIES="foo:$TRASH_ROOT/sub"
+GIT_CEILING_DIRECTORIES="/foo:$TRASH_ROOT/sub"
test_fail second_of_two
-GIT_CEILING_DIRECTORIES="$TRASH_ROOT/sub:bar"
+GIT_CEILING_DIRECTORIES="$TRASH_ROOT/sub:/bar"
test_fail first_of_two
-GIT_CEILING_DIRECTORIES="foo:$TRASH_ROOT/sub:bar"
+GIT_CEILING_DIRECTORIES="/foo:$TRASH_ROOT/sub:/bar"
test_fail second_of_three