Files
Charon/docs/issues/manual_test_smtp_mock_flakiness_fix.md
GitHub Actions 7497cbecd0 chore: Implement manual test plan for SMTP mock server flakiness fix
- Added a new documentation file outlining the manual test plan to validate the SMTP mock server flakiness fix, ensuring improved mail test reliability without affecting production behavior.
- Updated the current specification document to reflect the focus on stabilizing flaky SMTP STARTTLS+AUTH unit tests, including detailed research findings and requirements for the implementation.
- Created a QA/Security validation report for the SMTP flaky test fix, confirming that changes are test-only, stable under repeated runs, and do not introduce new security risks.
2026-02-22 06:29:37 +00:00

1.8 KiB

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Manual Test Plan - SMTP Mock Server Flakiness Fix Open High QA testing, backend, reliability

Test Objective

Confirm the SMTP mock server flakiness fix improves mail test reliability without changing production mail behavior.

Scope

  • In scope: test reliability for SMTP mock server flows used by backend mail tests.
  • Out of scope: production SMTP sending behavior and user-facing mail features.

Prerequisites

  • Charon repository is up to date.
  • Backend test environment is available.
  • Ability to run backend tests repeatedly.

Manual Scenarios

1) Target flaky test repeated run

  • Run TestMailService_TestConnection_StartTLSSuccessWithAuth repeatedly (at least 20 times).
  • Record pass/fail count and any intermittent errors.

2) Mail service targeted subset run

  • Run mail service connection and send test subset once.
  • Confirm no new intermittent failures appear in related tests.

3) Race-focused verification

  • Run targeted mail service tests with race detection enabled.
  • Confirm no race warnings or hangs occur.

4) Cleanup/shutdown stability check

  • Repeat targeted runs and watch for stuck test processes or timeout behavior.
  • Confirm test execution exits cleanly each run.

Expected Results

  • Repeated target test runs complete with zero flaky failures.
  • Related mail service test subset remains stable.
  • No race detector findings for targeted scenarios.
  • No hangs during test cleanup/shutdown.

Regression Checks (No Production Impact)

  • Confirm only test reliability behavior changed; no production mail behavior changes are required.
  • Confirm no production endpoints, settings, or user-facing mail flows are affected.
  • Confirm standard backend test workflow still completes successfully after this fix.