297 lines
12 KiB
Python
297 lines
12 KiB
Python
from __future__ import annotations
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import json
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import unittest
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from typing import Any
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from unittest.mock import MagicMock, Mock, patch
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import aiohttp
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import aiohttp.test_utils
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import aiotools
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from aiohttp import web, web_request
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from diskcache import Cache
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from matrix_alertbot.alertmanager import AlertmanagerClient
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from matrix_alertbot.errors import (
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AlertmanagerError,
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AlertNotFoundError,
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SilenceNotFoundError,
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)
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class AbstractFakeAlertmanagerServer:
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def __init__(self) -> None:
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self.app = web.Application()
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self.app.router.add_routes(
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[
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web.get("/api/v2/alerts", self.get_alerts),
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web.post("/api/v2/silences", self.create_silence),
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web.delete("/api/v2/silence/{silence}", self.delete_silence),
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]
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)
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self.runner = web.AppRunner(self.app)
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async def __aenter__(self) -> AbstractFakeAlertmanagerServer:
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await self.start()
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return self
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async def __aexit__(self, *args: Any) -> None:
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await self.stop()
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async def start(self) -> None:
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self.port = aiohttp.test_utils.unused_port()
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await self.runner.setup()
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site = web.TCPSite(self.runner, "localhost", self.port)
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await site.start()
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async def stop(self) -> None:
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await self.runner.cleanup()
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async def get_alerts(self, request: web_request.Request) -> web.Response:
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raise NotImplementedError
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async def create_silence(self, request: web_request.Request) -> web.Response:
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raise NotImplementedError
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async def delete_silence(self, request: web_request.Request) -> web.Response:
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raise NotImplementedError
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class FakeAlertmanagerServer(AbstractFakeAlertmanagerServer):
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async def get_alerts(self, request: web_request.Request) -> web.Response:
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return web.Response(
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body=json.dumps(
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[
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{
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"fingerprint": "fingerprint1",
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"labels": {"alertname": "alert1"},
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"status": {"state": "active"},
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},
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{
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"fingerprint": "fingerprint2",
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"labels": {"alertname": "alert2"},
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"status": {
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"state": "suppressed",
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"silencedBy": ["silence1", "silence2"],
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},
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},
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]
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),
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content_type="application/json",
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)
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async def create_silence(self, request: web_request.Request) -> web.Response:
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return web.Response(
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body=json.dumps({"silenceID": "silence1"}), content_type="application/json"
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)
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async def delete_silence(self, request: web_request.Request) -> web.Response:
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return web.Response(status=200, content_type="application/json")
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class FakeAlertmanagerServerWithoutAlert(AbstractFakeAlertmanagerServer):
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async def get_alerts(self, request: web_request.Request) -> web.Response:
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return web.Response(body=json.dumps([]), content_type="application/json")
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class FakeAlertmanagerServerWithErrorAlerts(AbstractFakeAlertmanagerServer):
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async def get_alerts(self, request: web_request.Request) -> web.Response:
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return web.Response(status=500)
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class FakeAlertmanagerServerWithErrorCreateSilence(FakeAlertmanagerServer):
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async def create_silence(self, request: web_request.Request) -> web.Response:
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return web.Response(status=500)
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class FakeAlertmanagerServerWithErrorDeleteSilence(FakeAlertmanagerServer):
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async def delete_silence(self, request: web_request.Request) -> web.Response:
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return web.Response(status=500)
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class AlertmanagerClientTestCase(unittest.IsolatedAsyncioTestCase):
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async def asyncSetUp(self) -> None:
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self.fake_fingerprints = Mock(return_value=["fingerprint1", "fingerprint2"])
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self.fake_cache = MagicMock(spec=Cache)
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self.fake_cache.__getitem__ = self.fake_fingerprints
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async def test_get_alerts_happy(self) -> None:
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async with FakeAlertmanagerServer() as fake_alertmanager_server:
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port = fake_alertmanager_server.port
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alertmanager = AlertmanagerClient(
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f"http://localhost:{port}", self.fake_cache
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)
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async with aiotools.closing_async(alertmanager) as alertmanager:
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alerts = await alertmanager.get_alerts()
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self.assertEqual(
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[
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{
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"fingerprint": "fingerprint1",
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"labels": {"alertname": "alert1"},
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"status": {"state": "active"},
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},
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{
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"fingerprint": "fingerprint2",
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"labels": {"alertname": "alert2"},
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"status": {
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"state": "suppressed",
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"silencedBy": ["silence1", "silence2"],
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},
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},
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],
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alerts,
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)
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async def test_get_alerts_empty(self) -> None:
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async with FakeAlertmanagerServerWithoutAlert() as fake_alertmanager_server:
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port = fake_alertmanager_server.port
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alertmanager = AlertmanagerClient(
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f"http://localhost:{port}", self.fake_cache
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)
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async with aiotools.closing_async(alertmanager) as alertmanager:
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alerts = await alertmanager.get_alerts()
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self.assertEqual([], alerts)
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async def test_get_alerts_raise_alertmanager_error(self) -> None:
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async with FakeAlertmanagerServerWithErrorAlerts() as fake_alertmanager_server:
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port = fake_alertmanager_server.port
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alertmanager = AlertmanagerClient(
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f"http://localhost:{port}", self.fake_cache
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)
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async with aiotools.closing_async(alertmanager) as alertmanager:
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with self.assertRaises(AlertmanagerError):
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await alertmanager.get_alerts()
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async def test_get_alert_happy(self) -> None:
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async with FakeAlertmanagerServer() as fake_alertmanager_server:
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port = fake_alertmanager_server.port
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alertmanager = AlertmanagerClient(
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f"http://localhost:{port}", self.fake_cache
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)
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async with aiotools.closing_async(alertmanager) as alertmanager:
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alert = await alertmanager.get_alert("fingerprint1")
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self.assertEqual(
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{
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"fingerprint": "fingerprint1",
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"labels": {"alertname": "alert1"},
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"status": {"state": "active"},
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},
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alert,
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)
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async def test_get_alert_raise_alert_not_found(self) -> None:
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async with FakeAlertmanagerServerWithoutAlert() as fake_alertmanager_server:
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port = fake_alertmanager_server.port
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alertmanager = AlertmanagerClient(
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f"http://localhost:{port}", self.fake_cache
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)
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async with aiotools.closing_async(alertmanager) as alertmanager:
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with self.assertRaises(AlertNotFoundError):
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await alertmanager.get_alert("fingerprint1")
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async def test_get_alert_raise_alertmanager_error(self) -> None:
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async with FakeAlertmanagerServerWithErrorAlerts() as fake_alertmanager_server:
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port = fake_alertmanager_server.port
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alertmanager = AlertmanagerClient(
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f"http://localhost:{port}", self.fake_cache
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)
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async with aiotools.closing_async(alertmanager) as alertmanager:
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with self.assertRaises(AlertmanagerError):
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await alertmanager.get_alert("fingerprint1")
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async def test_create_silence_happy(self) -> None:
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async with FakeAlertmanagerServer() as fake_alertmanager_server:
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port = fake_alertmanager_server.port
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alertmanager = AlertmanagerClient(
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f"http://localhost:{port}", self.fake_cache
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)
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async with aiotools.closing_async(alertmanager) as alertmanager:
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silence = await alertmanager.create_silence(
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"fingerprint1", "1d", "user"
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)
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self.assertEqual("silence1", silence)
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async def test_create_silence_raise_alert_not_found(self) -> None:
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async with FakeAlertmanagerServerWithoutAlert() as fake_alertmanager_server:
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port = fake_alertmanager_server.port
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alertmanager = AlertmanagerClient(
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f"http://localhost:{port}", self.fake_cache
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)
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async with aiotools.closing_async(alertmanager) as alertmanager:
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with self.assertRaises(AlertNotFoundError):
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await alertmanager.create_silence("fingerprint1", "1d", "user")
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async def test_create_silence_raise_alertmanager_error(self) -> None:
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async with FakeAlertmanagerServerWithErrorCreateSilence() as fake_alertmanager_server:
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port = fake_alertmanager_server.port
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alertmanager = AlertmanagerClient(
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f"http://localhost:{port}", self.fake_cache
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)
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async with aiotools.closing_async(alertmanager) as alertmanager:
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await alertmanager.get_alert("fingerprint1")
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with self.assertRaises(AlertmanagerError):
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await alertmanager.create_silence("fingerprint1", "1d", "user")
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async def test_delete_silences_happy(self) -> None:
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async with FakeAlertmanagerServer() as fake_alertmanager_server:
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port = fake_alertmanager_server.port
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alertmanager = AlertmanagerClient(
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f"http://localhost:{port}", self.fake_cache
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)
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async with aiotools.closing_async(alertmanager) as alertmanager:
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silences = await alertmanager.delete_silences("fingerprint2")
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self.assertEqual(["silence1", "silence2"], silences)
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async def test_delete_silences_raise_silence_not_found(self) -> None:
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async with FakeAlertmanagerServer() as fake_alertmanager_server:
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port = fake_alertmanager_server.port
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alertmanager = AlertmanagerClient(
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f"http://localhost:{port}", self.fake_cache
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)
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async with aiotools.closing_async(alertmanager) as alertmanager:
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with self.assertRaises(SilenceNotFoundError):
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await alertmanager.delete_silences("fingerprint1")
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async def test_delete_silences_raise_alert_not_found(self) -> None:
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async with FakeAlertmanagerServerWithoutAlert() as fake_alertmanager_server:
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port = fake_alertmanager_server.port
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alertmanager = AlertmanagerClient(
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f"http://localhost:{port}", self.fake_cache
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)
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async with aiotools.closing_async(alertmanager) as alertmanager:
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with self.assertRaises(AlertNotFoundError):
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await alertmanager.delete_silences("fingerprint2")
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async def test_delete_silences_raise_alertmanager_error(self) -> None:
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async with FakeAlertmanagerServerWithErrorDeleteSilence() as fake_alertmanager_server:
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port = fake_alertmanager_server.port
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alertmanager = AlertmanagerClient(
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f"http://localhost:{port}", self.fake_cache
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)
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async with aiotools.closing_async(alertmanager) as alertmanager:
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await alertmanager.get_alert("fingerprint1")
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with self.assertRaises(AlertmanagerError):
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await alertmanager.delete_silences("fingerprint2")
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async def test_find_alert_happy(self) -> None:
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alertmanager = AlertmanagerClient(f"http://localhost", self.fake_cache)
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alert = alertmanager._find_alert(
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"fingerprint1", [{"fingerprint": "fingerprint1"}]
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)
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self.assertEqual({"fingerprint": "fingerprint1"}, alert)
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async def test_find_alert_raise_alert_not_found(self) -> None:
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alertmanager = AlertmanagerClient(f"http://localhost", self.fake_cache)
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with self.assertRaises(AlertNotFoundError):
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alertmanager._find_alert("fingerprint2", [{"fingerprint": "fingerprint1"}])
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if __name__ == "__main__":
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unittest.main()
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