assertEquals((byte) 0x01, dst[1]); // Extended bit set
    }

    @Test
    @DisplayName("readHeaderWireFormat should parse header correctly")
    void testReadHeaderWireFormat() {
        byte[] buffer = { (byte) 0x82, (byte) 0x00, (byte) 0x00, (byte) 0x20 };
        ByteArrayInputStream bais = new ByteArrayInputStream(buffer);

        assertEquals((byte) 0x03, dst[9]);
        assertEquals((byte) 0x00, dst[10]); // additionalCount
        assertEquals((byte) 0x04, dst[11]);
    }

    @Test
    void testReadHeaderWireFormat() {
        byte[] src = new byte[NameServicePacket.HEADER_LENGTH];
        NameServicePacket.writeInt2(0x1234, src, 0);
        src[2] = (byte) (0x80 | (NameServicePacket.QUERY << 3) | 0x04 | 0x02 | 0x01);