from typing import Dict
from aiohttp import ClientSession
from aiohttp.web_exceptions import HTTPInternalServerError


async def send_request() -> Dict:
    async with ClientSession() as session:
        async with session.get('http://localhost') as response:
            if response.status != 200:
                raise HTTPInternalServerError()
            return await response.json()


from asynctest import patch, CoroutineMock
from aiohttp import web
from aiohttp.web_exceptions import HTTPInternalServerError
from aiohttp.test_utils import AioHTTPTestCase, unittest_run_loop

from .main import send_request


class SendRequestTestCase(AioHTTPTestCase):

    def set_get_mock_response(self, mock_get, status, json_data):
        mock_get.return_value.__aenter__.return_value.status = status
        mock_get.return_value.__aenter__.return_value.json = CoroutineMock(return_value=json_data)

    async def get_application(self):
        return web.Application()

    @unittest_run_loop
    @patch('aiohttp.ClientSession.get')
    async def test_success(self, mock_get):
        self.set_get_mock_response(mock_get, 200, {'test': True})
        response = await send_request()
        assert response['test']

    @unittest_run_loop
    @patch('aiohttp.ClientSession.get')
    async def test_fail(self, mock_get):
        self.set_get_mock_response(mock_get, 500, {})
        with self.assertRaises(HTTPInternalServerError):
            await send_request()