# Copyright (c) 2015 Nicolas JOUANIN
#
# See the file license.txt for copying permission.
import anyio
import unittest

from hbmqtt.mqtt.subscribe import SubscribePacket, SubscribePayload
from hbmqtt.mqtt.packet import PacketIdVariableHeader
from hbmqtt.mqtt.constants import QOS_1, QOS_2
from hbmqtt.adapters import BufferAdapter


class SubscribePacketTest(unittest.TestCase):
    def test_from_stream(self):
        data = b'\x80\x0e\x00\x0a\x00\x03a/b\x01\x00\x03c/d\x02'
        stream = BufferAdapter(data)
        message = anyio.run(SubscribePacket.from_stream, stream)
        (topic, qos) = message.payload.topics[0]
        self.assertEqual(topic, 'a/b')
        self.assertEqual(qos, QOS_1)
        (topic, qos) = message.payload.topics[1]
        self.assertEqual(topic, 'c/d')
        self.assertEqual(qos, QOS_2)

    def test_to_stream(self):
        variable_header = PacketIdVariableHeader(10)
        payload = SubscribePayload(
            [
                ('a/b', QOS_1),
                ('c/d', QOS_2)
            ])
        publish = SubscribePacket(variable_header=variable_header, payload=payload)
        out = publish.to_bytes()
        self.assertEqual(out, b'\x82\x0e\x00\x0a\x00\x03a/b\x01\x00\x03c/d\x02')

[((493, 512), 'hbmqtt.adapters.BufferAdapter', 'BufferAdapter', (['data'], {}), '(data)\n', (506, 512), False, 'from hbmqtt.adapters import BufferAdapter\n'), ((531, 577), 'anyio.run', 'anyio.run', (['SubscribePacket.from_stream', 'stream'], {}), '(SubscribePacket.from_stream, stream)\n', (540, 577), False, 'import anyio\n'), ((885, 911), 'hbmqtt.mqtt.packet.PacketIdVariableHeader', 'PacketIdVariableHeader', (['(10)'], {}), '(10)\n', (907, 911), False, 'from hbmqtt.mqtt.packet import PacketIdVariableHeader\n'), ((930, 980), 'hbmqtt.mqtt.subscribe.SubscribePayload', 'SubscribePayload', (["[('a/b', QOS_1), ('c/d', QOS_2)]"], {}), "([('a/b', QOS_1), ('c/d', QOS_2)])\n", (946, 980), False, 'from hbmqtt.mqtt.subscribe import SubscribePacket, SubscribePayload\n'), ((1058, 1123), 'hbmqtt.mqtt.subscribe.SubscribePacket', 'SubscribePacket', ([], {'variable_header': 'variable_header', 'payload': 'payload'}), '(variable_header=variable_header, payload=payload)\n', (1073, 1123), False, 'from hbmqtt.mqtt.subscribe import SubscribePacket, SubscribePayload\n')]