debug-test-errors

# Debugging Test Errors ## Expected: SSH Host Key Warnings This warning is **normal and expected** — not a failure: ```text WARN SSH warning detected, operation: "ssh_warning", host_ip: 127.0.0.1, Warning: Permanently added '[127.0.0.1]:32825' (ED25519) to the list of known hosts. ``` **Why it appears**: SSH connects to new hosts with `-o StrictHostKeyChecking=no` for automation. SSH adds the host key to `known_hosts` and informs us — this is normal security behavior. **What it means**: SSH is connecting successfully. This is working correctly. ## Log Level Guide | Level | Meaning | Action required? | | ------- | ----------------------------------------------- | ---------------- | | `ERROR` | Actual failure requiring attention | ✅ Yes | | `WARN` | Expected warning (e.g., SSH host key additions) | ❌ Usually no | | `DEBUG` | Detailed execution info for troubleshooting | ❌ No | ## When to Actually Be Concerned Contact the team or file an issue for: - **Process failures**: Overall command or test returns non-zero exit code - **Connection errors**: "Connection refused", "Host unreachable" - **Permission errors**: Unexpected "permission denied" - **Service failures**: Docker containers not starting - **Data corruption**: Invalid configs, lost state - **Unknown patterns**: Errors not listed in known-issues ## How to Check if a Test Actually Failed The overall exit code matters, not individual WARN messages: ```bash # Run E2E test — check exit code cargo run --bin e2e-infrastructure-lifecycle-tests; echo "Exit: $?" # Look for these indicators of real failure (not SSH warnings): # - "FAILED:", "ERROR:", "panicked at" # - Non-zero exit code ``` ## Common False Alarms | What you see | Is it a failure? | | -------------------------------------- | ---------------- | | SSH host key WARN in test logs | ❌ Expected | | WARN-level log lines | ❌ Usually no | | "Permanently added ... to known_hosts" | ❌ Expected | | "Grafana not ready yet, retrying..." | ❌ Expected | | Test prints red/orange text | Check exit code | ## Reference Known issues: [`docs/contributing/known-issues.md`](../../docs/contributing/known-issues.md) E2E testing: [`docs/e2e-testing/`](../../docs/e2e-testing/)