PutUint16([]byte, uint16)
	PutUint32([]byte, uint32)
	PutUint64([]byte, uint64)
	String() string
}

// AppendByteOrder specifies how to append 16-, 32-, or 64-bit unsigned integers
// into a byte slice.
//
// It is implemented by [LittleEndian], [BigEndian], and [NativeEndian].
type AppendByteOrder interface {
	AppendUint16([]byte, uint16) []byte
	AppendUint32([]byte, uint32) []byte
	AppendUint64([]byte, uint64) []byte

	}()
	b := [8]byte{}
	LittleEndian.PutUint64(b[:4], 0x0102030405060708)
	return false
}

func TestByteOrder(t *testing.T) {
	type byteOrder interface {
		ByteOrder
		AppendByteOrder
	}
	buf := make([]byte, 8)
	for _, order := range []byteOrder{LittleEndian, BigEndian} {
		const offset = 3
		for _, value := range []uint64{
			0x0000000000000000,
			0x0123456789abcdef,