python-dependency-injector/examples/miniapps/monitoring-daemon-asyncio/monitoringdaemon/tests.py

"""Tests module."""

import asyncio
import dataclasses
from unittest import mock

import pytest

from .containers import ApplicationContainer


@dataclasses.dataclass
class RequestStub:
    status: int
    content_length: int


@pytest.fixture
def container():
    container = ApplicationContainer()
    container.config.from_dict({
        'log': {
            'level': 'INFO',
            'formant': '[%(asctime)s] [%(levelname)s] [%(name)s]: %(message)s',
        },
        'monitors': {
            'example': {
                'method': 'GET',
                'url': 'http://fake-example.com',
                'timeout': 1,
                'check_every': 1,
            },
            'httpbin': {
                'method': 'GET',
                'url': 'http://fake-httpbin.org/get',
                'timeout': 1,
                'check_every': 1,
            },
        },
    })
    return container


@pytest.mark.asyncio
async def test_example_monitor(container, caplog):
    caplog.set_level('INFO')

    http_client_mock = mock.AsyncMock()
    http_client_mock.request.return_value = RequestStub(
        status=200,
        content_length=635,
    )

    with container.http_client.override(http_client_mock):
        example_monitor = container.example_monitor()
        await example_monitor.check()

    assert 'http://fake-example.com' in caplog.text
    assert 'Response code: 200' in caplog.text
    assert 'content length: 635' in caplog.text


@pytest.mark.asyncio
async def test_dispatcher(container, caplog, event_loop):
    caplog.set_level('INFO')

    example_monitor_mock = mock.AsyncMock()
    httpbin_monitor_mock = mock.AsyncMock()

    with container.example_monitor.override(example_monitor_mock), \
            container.httpbin_monitor.override(httpbin_monitor_mock):

        dispatcher = container.dispatcher()
        event_loop.create_task(dispatcher.start())
        await asyncio.sleep(0.1)
        dispatcher.stop()

    assert example_monitor_mock.check.called
    assert httpbin_monitor_mock.check.called