NameServicePacket.writeInt2(12, src, 10); // rDataLength (for two NbtAddress)

        packet.questionName = mockQuestionName;

        int read = packet.readResourceRecordWireFormat(src, 0);
        assertEquals(24, read); // 2 (pointer) + 2 (type) + 2 (class) + 4 (ttl) + 2 (rDataLength) + 12 (rData)
        assertEquals(12, packet.rDataLength);
        assertNotNull(packet.addrEntry);

        writeInt2(recordClass, dst, dstIndex);
        dstIndex += 2;
        writeInt4(ttl, dst, dstIndex);
        dstIndex += 4;
        rDataLength = writeRDataWireFormat(dst, dstIndex + 2);
        writeInt2(rDataLength, dst, dstIndex);
        dstIndex += 2 + rDataLength;
        return dstIndex - start;
    }

    int readResourceRecordWireFormat(final byte[] src, int srcIndex) {
        final int start = srcIndex;

        dstIndex += 2;
        writeInt4(this.ttl, dst, dstIndex);
        dstIndex += 4;
        this.rDataLength = writeRDataWireFormat(dst, dstIndex + 2);
        writeInt2(this.rDataLength, dst, dstIndex);
        dstIndex += 2 + this.rDataLength;
        return dstIndex - start;
    }

    int readResourceRecordWireFormat(final byte[] src, int srcIndex) {

        // ttl (4 bytes)
        src[srcIndex + 6] = 0x00;
        src[srcIndex + 7] = 0x00;
        src[srcIndex + 8] = 0x00;
        src[srcIndex + 9] = 0x00;
        // rDataLength (2 bytes)
        src[srcIndex + 10] = 0x00;
        src[srcIndex + 11] = 0x06; // 6 bytes of data

        // Initialize questionName to avoid NPE