{"abstract":"One passing check masks failing required checks.","category":"Deployment models","checks":9,"contract":"Promote only if desired revision matches tested revision, all required checks pass, minimum healthy replicas is reached, approval is present when required, and no freeze is active.","evaluation_group":"xt-rollout-gates","failed_approach":"The attempted repair substitutes True. Fixture 3 still yields True instead of False.","family":"xt-rollout-gates-required-checks","id":"FA-10086","implementations":{"attempt":{"sha256":"143cd33f2e0d960b285dc03ae5d77c90908f350af446c1deb56c05da25f31067","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(state):\n    return state['revision'] == state['tested'] and True and state['healthy'] >= state['minimum'] and (not state['approval_required'] or state['approved']) and not state['frozen']\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('fixture 1', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 2, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), True)\ncheck('fixture 2', solve({'revision': 'r2', 'tested': 'r1', 'checks': [True], 'healthy': 2, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), False)\ncheck('fixture 3', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True, False], 'healthy': 2, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), False)\ncheck('fixture 4', solve({'revision': 'r1', 'tested': 'r1', 'checks': [], 'healthy': 2, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), True)\ncheck('fixture 5', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 1, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), False)\ncheck('fixture 6', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 3, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), True)\ncheck('fixture 7', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 2, 'minimum': 2, 'approval_required': True, 'approved': False, 'frozen': False}), False)\ncheck('fixture 8', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 2, 'minimum': 2, 'approval_required': True, 'approved': True, 'frozen': False}), True)\ncheck('fixture 9', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 2, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': True}), False)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"broken":{"sha256":"2d8e0531a96a09e74acde6f2519f4bded4da67b7ce6240a651600559952760eb","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(state):\n    return state['revision'] == state['tested'] and any(state['checks']) and state['healthy'] >= state['minimum'] and (not state['approval_required'] or state['approved']) and not state['frozen']\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('fixture 1', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 2, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), True)\ncheck('fixture 2', solve({'revision': 'r2', 'tested': 'r1', 'checks': [True], 'healthy': 2, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), False)\ncheck('fixture 3', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True, False], 'healthy': 2, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), False)\ncheck('fixture 4', solve({'revision': 'r1', 'tested': 'r1', 'checks': [], 'healthy': 2, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), True)\ncheck('fixture 5', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 1, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), False)\ncheck('fixture 6', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 3, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), True)\ncheck('fixture 7', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 2, 'minimum': 2, 'approval_required': True, 'approved': False, 'frozen': False}), False)\ncheck('fixture 8', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 2, 'minimum': 2, 'approval_required': True, 'approved': True, 'frozen': False}), True)\ncheck('fixture 9', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 2, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': True}), False)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"},"fixed":{"sha256":"3664f0d1adc68aa507cf1b921a46a9ecbb8c2b8b471495d0defcd72b1f7e6d41","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(state):\n    return state['revision'] == state['tested'] and all(state['checks']) and state['healthy'] >= state['minimum'] and (not state['approval_required'] or state['approved']) and not state['frozen']\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\ncheck('fixture 1', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 2, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), True)\ncheck('fixture 2', solve({'revision': 'r2', 'tested': 'r1', 'checks': [True], 'healthy': 2, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), False)\ncheck('fixture 3', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True, False], 'healthy': 2, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), False)\ncheck('fixture 4', solve({'revision': 'r1', 'tested': 'r1', 'checks': [], 'healthy': 2, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), True)\ncheck('fixture 5', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 1, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), False)\ncheck('fixture 6', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 3, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': False}), True)\ncheck('fixture 7', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 2, 'minimum': 2, 'approval_required': True, 'approved': False, 'frozen': False}), False)\ncheck('fixture 8', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 2, 'minimum': 2, 'approval_required': True, 'approved': True, 'frozen': False}), True)\ncheck('fixture 9', solve({'revision': 'r1', 'tested': 'r1', 'checks': [True], 'healthy': 2, 'minimum': 2, 'approval_required': False, 'approved': False, 'frozen': True}), False)\nprint(json.dumps({\"observations\": observations, \"passed\": all(x[\"passed\"] for x in observations)}, ensure_ascii=False))\nraise SystemExit(0 if all(x[\"passed\"] for x in observations) else 1)\n"}},"limitations":" This reproducer isolates one failure mechanism. Results cover the supplied fixtures. Variants within a family share a test contract and should remain grouped when constructing evaluation splits. Related mechanisms with a shared evaluation_group must also remain together; these controlled models are not independent production incidents.","method":"Deterministic executable model with adversarial boundary fixtures.","provenance":{"created_by":"Failure Map","dependencies":"Python standard library","family":"xt-rollout-gates-required-checks","generated_at":"2026-09-29T14:38:35.746600+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"An offline model of deployment promotion gate, suitable for testing build and release tooling without external services.","repair":"Require every listed check to pass; an empty required set passes.","root_cause":"The implementation substitutes any(state['checks']) for all(state['checks']), so one passing check masks failing required checks.","sha256":"0e09f46cfaa80d70269d7787a0e63ed3f19bcda779f10b9a04bd9ad96529392d","title":"Deployment promotion gate: One passing check masks failing required checks · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verification":{"attempt":{"elapsed_ms":36.735,"exit_code":1,"observations":[{"actual":true,"check":"fixture 1","expected":true,"passed":true},{"actual":false,"check":"fixture 2","expected":false,"passed":true},{"actual":true,"check":"fixture 3","expected":false,"passed":false},{"actual":true,"check":"fixture 4","expected":true,"passed":true},{"actual":false,"check":"fixture 5","expected":false,"passed":true},{"actual":true,"check":"fixture 6","expected":true,"passed":true},{"actual":false,"check":"fixture 7","expected":false,"passed":true},{"actual":true,"check":"fixture 8","expected":true,"passed":true},{"actual":false,"check":"fixture 9","expected":false,"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 1\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"fixture 2\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"fixture 3\", \"actual\": true, \"expected\": false, \"passed\": false}, {\"check\": \"fixture 4\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"fixture 5\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"fixture 6\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"fixture 7\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"fixture 8\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"fixture 9\", \"actual\": false, \"expected\": false, \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":40.026,"exit_code":1,"observations":[{"actual":true,"check":"fixture 1","expected":true,"passed":true},{"actual":false,"check":"fixture 2","expected":false,"passed":true},{"actual":true,"check":"fixture 3","expected":false,"passed":false},{"actual":false,"check":"fixture 4","expected":true,"passed":false},{"actual":false,"check":"fixture 5","expected":false,"passed":true},{"actual":true,"check":"fixture 6","expected":true,"passed":true},{"actual":false,"check":"fixture 7","expected":false,"passed":true},{"actual":true,"check":"fixture 8","expected":true,"passed":true},{"actual":false,"check":"fixture 9","expected":false,"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 1\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"fixture 2\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"fixture 3\", \"actual\": true, \"expected\": false, \"passed\": false}, {\"check\": \"fixture 4\", \"actual\": false, \"expected\": true, \"passed\": false}, {\"check\": \"fixture 5\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"fixture 6\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"fixture 7\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"fixture 8\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"fixture 9\", \"actual\": false, \"expected\": false, \"passed\": true}], \"passed\": false}\n"},"fixed":{"elapsed_ms":37.804,"exit_code":0,"observations":[{"actual":true,"check":"fixture 1","expected":true,"passed":true},{"actual":false,"check":"fixture 2","expected":false,"passed":true},{"actual":false,"check":"fixture 3","expected":false,"passed":true},{"actual":true,"check":"fixture 4","expected":true,"passed":true},{"actual":false,"check":"fixture 5","expected":false,"passed":true},{"actual":true,"check":"fixture 6","expected":true,"passed":true},{"actual":false,"check":"fixture 7","expected":false,"passed":true},{"actual":true,"check":"fixture 8","expected":true,"passed":true},{"actual":false,"check":"fixture 9","expected":false,"passed":true}],"passed":true,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 1\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"fixture 2\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"fixture 3\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"fixture 4\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"fixture 5\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"fixture 6\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"fixture 7\", \"actual\": false, \"expected\": false, \"passed\": true}, {\"check\": \"fixture 8\", \"actual\": true, \"expected\": true, \"passed\": true}, {\"check\": \"fixture 9\", \"actual\": false, \"expected\": false, \"passed\": true}], \"passed\": true}\n"}},"verified":true,"visibility":"public"}