for _, name := range []string{"WriteTo", "Copy"} {
		for _, size := range []int{0, 10, 1023, 1024, 1025} {
			t.Run(fmt.Sprintf("%s/%d", name, size), func(t *testing.T) {
				testBuffer_writeTo(t, size, name == "Copy")
			})
		}
	}
}

func testBuffer_writeTo(t *testing.T, chunks int, useCopy bool) {
	oldHook := poll.TestHookDidWritev
	defer func() { poll.TestHookDidWritev = oldHook }()
	var writeLog struct {
		sync.Mutex