}

func TestInternalIsZero(t *testing.T) {
	b := make([]byte, 512)
	for a := 0; a < 8; a++ {
		for i := 1; i <= 512-a; i++ {
			InternalIsZero(b[a : a+i])
		}
	}
}

func TestInterfaceExtraction(t *testing.T) {
	var s struct {
		W io.Writer
	}

	s.W = os.Stdout
	v := Indirect(ValueOf(&s)).Field(0).Interface()
	if v != s.W.(any) {
		t.Error("Interface() on interface: ", v, s.W)