matrix-alertbot/tests/test_alert.py

import unittest
from typing import Dict

from matrix_alertbot.alert import Alert


class AlertTestCase(unittest.TestCase):
    def setUp(self) -> None:
        self.alert_dict: Dict = {
            "fingerprint": "fingerprint1",
            "generatorURL": "http://example.com",
            "status": "unknown",
            "labels": {"alertname": "alert1", "severity": "critical", "job": "job1"},
            "annotations": {"description": "some description"},
        }

    def test_create_firing_alert_from_dict(self) -> None:
        self.alert_dict["status"] = "firing"
        alert = Alert.from_dict(self.alert_dict)

        self.assertEqual("fingerprint1", alert.id)
        self.assertEqual("http://example.com", alert.url)
        self.assertTrue(alert.firing)
        self.assertEqual("critical", alert.status)
        self.assertDictEqual(
            {"alertname": "alert1", "severity": "critical", "job": "job1"}, alert.labels
        )
        self.assertDictEqual({"description": "some description"}, alert.annotations)

    def test_create_resolved_alert_from_dict(self) -> None:
        self.alert_dict["status"] = "resolved"
        alert = Alert.from_dict(self.alert_dict)

        self.assertEqual("resolved", alert.status)
        self.assertFalse(alert.firing)

    def test_create_unknown_alert_from_dict(self) -> None:
        alert = Alert.from_dict(self.alert_dict)

        self.assertEqual("resolved", alert.status)
        self.assertFalse(alert.firing)

    def test_display_firing_critical_alert(self) -> None:
        self.alert_dict["status"] = "firing"
        alert = Alert.from_dict(self.alert_dict)
        alert.labels["severity"] = "critical"

        html = alert.html()
        self.assertEqual(
            "<font color='#dc3545'><b>[🔥 CRITICAL]</b></font> "
            "<a href='http://example.com'>alert1</a> (job1)<br/>"
            "some description",
            html,
        )

        plaintext = alert.plaintext()
        self.assertEqual("[🔥 CRITICAL] alert1: some description", plaintext)

    def test_display_firing_warning_alert(self) -> None:
        self.alert_dict["status"] = "firing"
        self.alert_dict["labels"]["severity"] = "warning"
        alert = Alert.from_dict(self.alert_dict)

        html = alert.html()
        self.assertEqual(
            "<font color='#ffc107'><b>[⚠️ WARNING]</b></font> "
            "<a href='http://example.com'>alert1</a> (job1)<br/>"
            "some description",
            html,
        )

        plaintext = alert.plaintext()
        self.assertEqual("[⚠️ WARNING] alert1: some description", plaintext)

    def test_display_firing_unknown_alert(self) -> None:
        self.alert_dict["status"] = "firing"
        self.alert_dict["labels"]["severity"] = "unknown"
        alert = Alert.from_dict(self.alert_dict)

        with self.assertRaisesRegex(KeyError, "unknown"):
            alert.html()

        with self.assertRaisesRegex(KeyError, "unknown"):
            alert.plaintext()

    def test_display_resolved_alert(self) -> None:
        self.alert_dict["status"] = "resolved"
        alert = Alert.from_dict(self.alert_dict)

        html = alert.html()
        self.assertEqual(
            "<font color='#33cc33'><b>[🥦 RESOLVED]</b></font> "
            "<a href='http://example.com'>alert1</a> (job1)<br/>"
            "some description",
            html,
        )

        plaintext = alert.plaintext()
        self.assertEqual("[🥦 RESOLVED] alert1: some description", plaintext)


if __name__ == "__main__":
    unittest.main()