@pytest.fixture
def app(aiohttp_client):
    app = web.Application()
    app.router.add_get('/pochta', pochta)
    return aiohttp_client(app)
@pytest.fixture
def app(aiohttp_client):
    app = web.Application()
    app.router.add_get('/pochta', pochta)
    return aiohttp_client(app)