PRODUCTION READINESS: Comprehensive integration and end-to-end testing

[sfloess]

Overview

Project needs extensive integration testing for cluster operations, failover, distributed state.

Current Gaps

• No integration tests (components tested in isolation)
• No end-to-end tests (full deployment scenarios)
• No cluster operation tests
• No failover tests
• No chaos tests

Test Categories Needed

1. Integration: Cluster formation, deployment, leader failover, node failure
2. End-to-end: Full lifecycle, cluster upgrade
3. Chaos: Network partition, random failures
4. Performance: Load tests, throughput tests

Acceptance Criteria

• 50+ integration tests covering key scenarios
• End-to-end tests for major workflows
• Chaos tests for failure scenarios
• Performance tests meeting SLAs
• Tests run in CI/CD
• Coverage > 70%

Estimated Impact

~100+ new tests, 6-8 weeks work, CRITICAL for production confidence