from unittest import TestCase

from amqp.adapter.amq_message_factory import AMQMessageFactory
from amqp.adapter.amq_response_factory import AMQResponseFactory
from amqp.model.snowflake_id import SnowflakeId


class TestAMQResponseFactory(TestCase):

    def test_create_async_response_message(self):
        _f = AMQResponseFactory()
        _g = AMQMessageFactory(111)
        _resp = _f.create_async_response_message(_g.generate_snowflake_id())
        self.assertEqual(200, _resp.response_code)
        self.assertEqual(b"OK", _resp.response)

    def test_serialize(self):
        _f = AMQResponseFactory()
        _g = AMQMessageFactory(111)
        _snowflakeId: SnowflakeId = _g.generate_snowflake_id()
        _resp = _f.create_async_response_message(_snowflakeId)
        _ser = _f.serialize(_resp)
        self.assertEqual(2, str(_ser[2:]).index(_f.MAGIC_BYTE_HTTP_REQUEST+_snowflakeId.as_string()), "Magic byte and SnowflakeId not found")
        self.assertGreater(str(_ser[2:]).index("|e=|"), 2)
        self.assertEqual((_ser[0]+_ser[1]), len(_ser) - 2 - len('T0s='))

    def test_from_bytes(self):
        _f = AMQResponseFactory()
        _g = AMQMessageFactory(111)
        _snowflakeId: SnowflakeId = _g.generate_snowflake_id()
        _resp = _f.create_async_response_message(_snowflakeId)
        _ser = _f.serialize(_resp)
        _deser = _f.from_bytes(_ser)
        self.assertEqual(_snowflakeId.as_string(), _deser.id)
        self.assertEqual(200, _deser.response_code)
        self.assertEqual(b'OK', _deser.response)