// Verify that the 'recordName' field in the superclass (NameServicePacket) is initialized
        Field recordNameField = NameServicePacket.class.getDeclaredField("recordName");
        recordNameField.setAccessible(true); // Allow access to protected field
        Name recordName = (Name) recordNameField.get(nameQueryResponse);
        assertNotNull(recordName, "recordName should be initialized by the constructor");
    }

        assertEquals(expectedString, packet.toString());

        // Test recordName == questionName branch in toString
        packet.recordName = packet.questionName;
        expectedString =

        final int start = dstIndex;
        if (this.recordName == this.questionName) {
            dst[dstIndex] = (byte) 0xC0; // label string pointer to
            dstIndex++;
            dst[dstIndex++] = (byte) 0x0C; // questionName (offset 12)
        } else {
            dstIndex += this.recordName.writeWireFormat(dst, dstIndex);
        }
        writeInt2(this.recordType, dst, dstIndex);

        final int start = dstIndex;
        if (recordName == questionName) {
            dst[dstIndex] = (byte) 0xC0; // label string pointer to
            dstIndex++;
            dst[dstIndex++] = (byte) 0x0C; // questionName (offset 12)
        } else {
            dstIndex += recordName.writeWireFormat(dst, dstIndex);
        }
        writeInt2(recordType, dst, dstIndex);

        queryAddressField.setAccessible(true);
        assertSame(mockQueryAddress, queryAddressField.get(response));

        // Verify recordName is initialized
        Field recordNameField = NameServicePacket.class.getDeclaredField("recordName");
        recordNameField.setAccessible(true);
        assertNotNull(recordNameField.get(response));

        // Verify macAddress is initialized with correct size