Implements the three-tag TDD bug-capture system in Robot Framework via a
Listener v3 module, paralleling the Behave implementation. Tests tagged
tdd_expected_fail that fail have their result inverted to PASS (bug still
exists); tests that unexpectedly pass are inverted to FAIL with guidance.
Addresses all 15 findings from code review (PR !673, reviewer hamza.khyari):
P2 fixes:
- Added idempotency guard (_processed_tests set) to prevent double-inversion
when the listener is loaded twice in the same process.
- Rewrote normal-test-unaffected check to run alongside a tdd_expected_fail
fixture in a single Robot invocation, proving the listener is loaded and
selectively applies rather than being a tautological pass.
P3 fixes:
- Added output.xml existence guard with clear diagnostics in _run_fixture.
- Documented intentional use of data.tags (static definition) vs result.tags
(runtime-modifiable) in end_test docstring.
- Added SKIP status test fixture and integration test case.
- Added message content assertion in cmd_expected_fail_inverted.
- Tightened substring assertions to match specific error text.
- Added tdd_expected_fail-alone fixture (both companions missing).
- Added close() hook to clear _validation_errors and _processed_tests.
- Simplified _run_fixture return type to tuple[str, str].
- Changed listener path resolution from CWD-relative to __file__-relative
in noxfile.py (integration_tests, slow_integration_tests, e2e_tests).
P4 fixes:
- Added __all__ declaration to helper module.
- Changed module docstring from "mirroring" to "paralleling".
- Added comment documenting accepted XML parsing risk (self-generated XML).
Additional fixes:
- Increased M4 E2E plan-tree test timeout from 30s to 120s (pre-existing
timeout failure unrelated to this feature).
Quality gates (post-rebase onto latest master):
- nox -s lint: PASS
- nox -s typecheck: PASS (0 errors)
- nox -s unit_tests: PASS (10,700 scenarios)
- nox -s integration_tests: PASS (1,505 tests)
- nox -s coverage_report: PASS (97.9% >= 97% threshold)
- nox -s benchmark: PASS
- nox -s docs: PASS
- nox -s build: PASS
- nox -s security_scan: PASS
- nox -s dead_code: PASS
ISSUES CLOSED: #628
