test -z "$(git diff-files -- one)"
'
+test_expect_success POSIXPERM 'find-copies-harder is not confused by mode bits' '
+ echo content >exec &&
+ chmod +x exec &&
+ git add exec &&
+ git commit -m exec &&
+ git update-index --assume-unchanged exec &&
+ >expect &&
+ git diff-files --find-copies-harder -- exec >actual &&
+ test_cmp expect actual
+'
+
test_done