final int start = dstIndex;
        writeInt2(this.nameTrnId, dst, dstIndex);
        dst[dstIndex + OPCODE_OFFSET] = (byte) ((this.isResponse ? 0x80 : 0x00) + (this.opCode << 3 & 0x78)
                + (this.isAuthAnswer ? 0x04 : 0x00) + (this.isTruncated ? 0x02 : 0x00) + (this.isRecurDesired ? 0x01 : 0x00));
        dst[dstIndex + OPCODE_OFFSET + 1] =

        assertEquals(0x12, dst[1] & 0xFF);
        // Check count
        assertEquals(10, dst[2] & 0xFF);
        assertEquals(0, dst[3] & 0xFF);
        // Check offset
        assertEquals(0x78, dst[4] & 0xFF);
        assertEquals(0x56, dst[5] & 0xFF);
    }

    /**
     * Test writeBytesWireFormat writes data correctly
     */
    @Test
    public void testWriteBytesWireFormat() {

        SessionServicePacket.writeInt4(0x12345678, dst, 0);

        assertEquals((byte) 0x12, dst[0]);
        assertEquals((byte) 0x34, dst[1]);
        assertEquals((byte) 0x56, dst[2]);
        assertEquals((byte) 0x78, dst[3]);
    }

    @ParameterizedTest
    @MethodSource("provideInt4TestValues")
    @DisplayName("writeInt4 should handle various values")
    void testWriteInt4Various(int value) {
        byte[] dst = new byte[4];

        assertEquals((byte) 0x56, dst[2]);
        assertEquals((byte) 0x78, dst[3]);
    }

    @Test
    void testReadInt2() {
        byte[] src = { (byte) 0x12, (byte) 0x34 };
        assertEquals(0x1234, NameServicePacket.readInt2(src, 0));
    }

    @Test
    void testReadInt4() {
        byte[] src = { (byte) 0x12, (byte) 0x34, (byte) 0x56, (byte) 0x78 };
        assertEquals(0x12345678, NameServicePacket.readInt4(src, 0));

	o = msgp.AppendString(o, z.ID)
	// string "User"
	o = append(o, 0xa4, 0x55, 0x73, 0x65, 0x72)
	o = msgp.AppendString(o, z.User)
	// string "Started"
	o = append(o, 0xa7, 0x53, 0x74, 0x61, 0x72, 0x74, 0x65, 0x64)
	o = msgp.AppendTime(o, z.Started)
	// string "Replicate"
	o = append(o, 0xa9, 0x52, 0x65, 0x70, 0x6c, 0x69, 0x63, 0x61, 0x74, 0x65)
	if z.Replicate == nil {
		o = msgp.AppendNil(o)
	} else {

	// string "Marker"
	o = append(o, 0x85, 0xa6, 0x4d, 0x61, 0x72, 0x6b, 0x65, 0x72)
	o = msgp.AppendString(o, z.Marker)
	// string "LatestOnly"
	o = append(o, 0xaa, 0x4c, 0x61, 0x74, 0x65, 0x73, 0x74, 0x4f, 0x6e, 0x6c, 0x79)
	o = msgp.AppendBool(o, z.LatestOnly)
	// string "AskDisks"
	o = append(o, 0xa8, 0x41, 0x73, 0x6b, 0x44, 0x69, 0x73, 0x6b, 0x73)
	o = msgp.AppendString(o, z.AskDisks)
	// string "VersionsSort"

        }

        // Add context length at offset
        buffer[offset + 24] = 0x12;
        buffer[offset + 25] = 0x34;
        buffer[offset + 26] = 0x56;
        buffer[offset + 27] = 0x78;

        // Decode
        int bytesConsumed = response.decode(buffer, offset, 28);

        // Verify
        assertEquals(28, bytesConsumed, "Should consume exactly 28 bytes");

	// string "Endpoint"
	o = append(o, 0xa8, 0x45, 0x6e, 0x64, 0x70, 0x6f, 0x69, 0x6e, 0x74)
	o = msgp.AppendString(o, z.Endpoint)
	// string "Path"
	o = append(o, 0xa4, 0x50, 0x61, 0x74, 0x68)
	o = msgp.AppendString(o, z.Path)
	// string "Creds"
	o = append(o, 0xa5, 0x43, 0x72, 0x65, 0x64, 0x73)
	// map header, size 3
	// string "AccessKey"
	o = append(o, 0x83, 0xa9, 0x41, 0x63, 0x63, 0x65, 0x73, 0x73, 0x4b, 0x65, 0x79)

		}
		// write "CSumAlgo"
		err = en.Append(0xa8, 0x43, 0x53, 0x75, 0x6d, 0x41, 0x6c, 0x67, 0x6f)
		if err != nil {
			return
		}
		err = en.WriteUint8(uint8(z.BitrotChecksumAlgo))
		if err != nil {
			err = msgp.WrapError(err, "BitrotChecksumAlgo")
			return
		}
		// write "PartNums"
		err = en.Append(0xa8, 0x50, 0x61, 0x72, 0x74, 0x4e, 0x75, 0x6d, 0x73)
		if err != nil {
			return
		}

	// string "PartNumber"
	o = append(o, 0x83, 0xaa, 0x50, 0x61, 0x72, 0x74, 0x4e, 0x75, 0x6d, 0x62, 0x65, 0x72)
	o = msgp.AppendInt(o, z.PartNumber)
	// string "Algorithm"
	o = append(o, 0xa9, 0x41, 0x6c, 0x67, 0x6f, 0x72, 0x69, 0x74, 0x68, 0x6d)
	o = msgp.AppendUint(o, uint(z.Algorithm))
	// string "Hash"
	o = append(o, 0xa4, 0x48, 0x61, 0x73, 0x68)
	o = msgp.AppendBytes(o, z.Hash)
	return
}