assertEquals((byte) 0x12, dst[2]);
        assertEquals((byte) 0x34, dst[3]);
    }

    @Test
    @DisplayName("writeHeaderWireFormat should set extended bit for large length")
    void testWriteHeaderWireFormatExtendedLength() {
        packet.type = SessionServicePacket.SESSION_MESSAGE;
        packet.length = 0x10000;

        byte[] dst = new byte[10];
        packet.writeHeaderWireFormat(dst, 0);