[dreamorosi]

Summary

Changes

This PR improves the resilience of Logger e2e tests by replacing strict array index assertions with log level grouping, fixing intermittent test failures in advancedUses.test.ts.

Issue number: closes #4907

The Logger e2e tests were failing intermittently (~40% failure rate) due to inconsistent log ordering when uncaught errors occur. The tests expected logs in a specific sequence, but the uncaught error handler could flush logs in different order, causing assertions to fail on array indices.

Solution

• Group logs by level before assertions rather than expecting strict micro-ordering during error conditions
• Assert on log content rather than array positions for INFO, DEBUG, and ERROR logs
• Maintain test coverage while improving reliability for CI
• No core logger changes required - only test improvements

Benefits

• CI Stability: Eliminates intermittent test failures that reduce confidence in the test suite
• Developer Experience: Reduces time wasted investigating false failures
• Test Reliability: Aligns with real-world logging behavior during error conditions
• Maintenance: Reduces need for manual re-runs when tests fail intermittently

Testing

• Verified the fix resolves intermittent failures through multiple test runs
• Maintains the same validation coverage as before
• Tests now focus on log completeness rather than exact ordering during errors

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[dreamorosi]

Tests seem to pass now: https://github.com/aws-powertools/powertools-lambda-typescript/actions/runs/20719517816

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud