Testing Alert Integrations

End-to-end alert testing. Critical and overlooked.

End-to-end testing

Manually trigger condition; verify alert fires through full chain.

Tests detection rule, routing rule, notification channel, acknowledgement flow.

Surfaces breakage that synthetic tests miss.

CI synthetic alerts

Test alert configurations on every PR. Fake metric data; verify rule triggers.

Catches regressions in alert configurations.

Cheap; fast; runs on every alert change.

Scheduled drills

Quarterly: test the full alerting pipeline end-to-end.

Inject failures; verify alerts fire, route, page, and acknowledge.

Scheduled before busy seasons (holidays, product launches) to ensure readiness.

Operating discipline

Test alerts after every infrastructure change. New paging tool, new dashboard, new on-call rotation.

Document known limitations. What synthetic tests don't catch.

Postmortem if real alert path fails. Each failure is a chance to improve.