""" Honest documentation of two of the seven requested failure-test categories that are NOT implemented as real fault-injection tests in this pass, and why — matching this repo's established convention of stating a gap in code (BEFORE_STATE.md, docs/P0_DATASET_QUALITY_FLOW.md) rather than silently dropping it or faking coverage. These are `pytest.skip` markers, not disguised passes, so they show up in the test report as explicitly unaddressed rather than vanishing from view. * CDC-interruption: this repo has NO change-data-capture pipeline anywhere — no Debezium/WAL-slot consumer, no CDC producer, no replication-slot code, confirmed by a full-repo search (`grep -rn "debezium\\|wal_level\\|replication.slot\\|cdc" services/ src/` finds nothing on this topic). A "CDC-interruption" fault-injection test needs a CDC stream to interrupt; fabricating one to have something to test would be building fictional infrastructure and testing the fiction, not this codebase — the exact failure mode this project's CLAUDE.md and BEFORE_STATE.md explicitly warn against ("never fabricate"). * True backfill idempotency (dedup against a delivery store): the pipeline has no persistence layer at all (see workers/pipeline.py — every run_job() call recomputes from scratch, nothing is written to a database). "Backfill doesn't create duplicate deliveries" requires a delivery store to check duplicates against, which doesn't exist. test_pipeline_fault_injection.py::TestBackfillReplay covers the narrower, real property that DOES hold today (replaying an identical order config is compute-idempotent — byte-identical output, no drift) and documents this exact distinction inline. """ import pytest @pytest.mark.skip( reason=( "No CDC pipeline exists anywhere in this repo (verified by full-repo " "search) — nothing to interrupt without inventing fictional " "infrastructure. See this file's module docstring." ) ) def test_cdc_interruption_not_implementable_against_real_code(): pass @pytest.mark.skip( reason=( "No delivery-store persistence layer exists to dedupe a backfill " "against — the compute-idempotency property that DOES exist is " "covered for real in test_pipeline_fault_injection.py::" "TestBackfillReplay. See this file's module docstring." ) ) def test_true_backfill_idempotency_not_implementable_against_real_code(): pass