Error2 reports
Fix JestAssertionError
in Kibana
✅ Solution
JestAssertionError usually arises from timing issues in asynchronous tests, where assertions are checked before the application state has fully updated. To fix it, use `await` with asynchronous operations like `waitFor` or `findBy` to ensure the UI is in the expected state before running assertions. Consider increasing timeout values if necessary, but prioritize ensuring the component has fully rendered/updated.
Related Issues
Real GitHub issues where developers encountered this error:
Failing test: Chrome X-Pack Observability UI Functional Tests.x-pack/solutions/observability/test/observability_functional/apps/observability/pages/alerts/custom_threshold·ts - ObservabilityApp CustomFeb 19, 2026
Failing test: Chrome X-Pack Observability UI Functional Tests.x-pack/solutions/observability/test/observability_functional/apps/observability/pages/alerts/custom_threshold·ts - ObservabilityApp CustomFeb 18, 2026
Timeline
First reported:Feb 18, 2026
Last reported:Feb 19, 2026