packet.ttl = 100;
        packet.rDataLength = 0; // Will be set by writeRDataWireFormat

        // TestNameServicePacket.writeRDataWireFormat returns 0
        int written = packet.writeResourceRecordWireFormat(dst, 0);
        assertEquals(12, written); // 2 (pointer) + 2 (type) + 2 (class) + 4 (ttl) + 2 (rDataLength) + 0 (rData)

        assertEquals((byte) 0xC0, dst[0]); // Pointer

        srcIndex += 2;
        this.questionClass = readInt2(src, srcIndex);
        srcIndex += 2;
        return srcIndex - start;
    }

    int writeResourceRecordWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;
        if (this.recordName == this.questionName) {
            dst[dstIndex] = (byte) 0xC0; // label string pointer to
            dstIndex++;

        questionType = readInt2(src, srcIndex);
        srcIndex += 2;
        questionClass = readInt2(src, srcIndex);
        srcIndex += 2;
        return srcIndex - start;
    }

    int writeResourceRecordWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;
        if (recordName == questionName) {
            dst[dstIndex] = (byte) 0xC0; // label string pointer to
            dstIndex++;