} >"$actual" &&
                if test -f "$expect"
                then
-                       git diff "$expect" "$actual" &&
+                       test_cmp "$expect" "$actual" &&
                        rm -f "$actual"
                else
                        # this is to help developing new tests.
 diff --patch-with-stat -r initial..side
 diff --patch-with-raw -r initial..side
 diff --name-status dir2 dir
+diff --no-index --name-status dir2 dir
 EOF
 
 test_done