{"abstract":"Websocket close handshake completes after both close directions.","category":"WebSocket and browser transport policies","checks":4,"contract":"Given sent, received, transport_closed, websocket close handshake completes after both close directions. Return the protocol decision or transformed value; fields are validated and fixtures state boundary outcomes.","contract_signature":"sent, received, transport_closed","evaluation_group":"xh-websocket-close-handshake-completes-after-both-close-directions","failed_approach":"The attempted repair uses `\"complete\" if sent and received else \"pending\"` and still violates a separate fixture.","family":"xh-websocket-close-handshake-completes-after-both-close-directions","id":"FA-7631","implementations":{"attempt":{"sha256":"e5d54b439500444a821c063fabdefbcdfe5e3b1b6795e4f935167079a336eb32","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\nimport ipaddress\nimport re\nfrom urllib.parse import urlsplit, urljoin\nN = 1\nobservations = []\ndef solve(sent, received, transport_closed):\n    return \"complete\" if sent and received else \"pending\"\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\n_fixtures = [\"check('fixture 1', solve(True, False, False), 'pending')\", \"check('fixture 2', solve(False, False, True), 'abnormal')\", \"check('fixture 3', solve(True, True, False), 'complete')\", \"check('fixture 4', solve(False, False, False), 'pending')\"]\nfor _line in _fixtures[N % len(_fixtures):] + _fixtures[:N % len(_fixtures)]:\n    exec(_line)\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":"bf37986ae201bb6e849f3ab74a6f7e4b39e3a462163ee8f79d12917b56015749","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\nimport ipaddress\nimport re\nfrom urllib.parse import urlsplit, urljoin\nN = 1\nobservations = []\ndef solve(sent, received, transport_closed):\n    return \"complete\" if sent or received else \"pending\"\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\n_fixtures = [\"check('fixture 1', solve(True, False, False), 'pending')\", \"check('fixture 2', solve(False, False, True), 'abnormal')\", \"check('fixture 3', solve(True, True, False), 'complete')\", \"check('fixture 4', solve(False, False, False), 'pending')\"]\nfor _line in _fixtures[N % len(_fixtures):] + _fixtures[:N % len(_fixtures)]:\n    exec(_line)\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":"Bounded deterministic policy model over validated inputs; not a complete protocol stack or an interoperability claim. The five variants rotate the same explicit fixture set. 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":"xh-websocket-close-handshake-completes-after-both-close-directions","generated_at":"2026-09-29T14:38:13.832763+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"This deterministic websocket and browser transport policies model isolates the websocket-close-handshake-completes-after-both-close-directions policy at a network component boundary.","root_cause":"The faulty implementation uses `\"complete\" if sent or received else \"pending\"` for the websocket-close-handshake-completes-after-both-close-directions decision.","sha256":"9589fc6693511a5ea825479e5262fbf200aa6b98ad7293456290723a7a466dba","title":"Websocket close handshake completes after both close directions · case 01","variant":1,"variant_policy":"Five numbered records share a model and may reuse boundary fixtures.","verified":true,"visibility":"public","verification":{"attempt":{"elapsed_ms":38.197,"exit_code":1,"observations":[{"actual":"pending","check":"fixture 2","expected":"abnormal","passed":false},{"actual":"complete","check":"fixture 3","expected":"complete","passed":true},{"actual":"pending","check":"fixture 4","expected":"pending","passed":true},{"actual":"pending","check":"fixture 1","expected":"pending","passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 2\", \"actual\": \"pending\", \"expected\": \"abnormal\", \"passed\": false}, {\"check\": \"fixture 3\", \"actual\": \"complete\", \"expected\": \"complete\", \"passed\": true}, {\"check\": \"fixture 4\", \"actual\": \"pending\", \"expected\": \"pending\", \"passed\": true}, {\"check\": \"fixture 1\", \"actual\": \"pending\", \"expected\": \"pending\", \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":43.749,"exit_code":1,"observations":[{"actual":"pending","check":"fixture 2","expected":"abnormal","passed":false},{"actual":"complete","check":"fixture 3","expected":"complete","passed":true},{"actual":"pending","check":"fixture 4","expected":"pending","passed":true},{"actual":"complete","check":"fixture 1","expected":"pending","passed":false}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"fixture 2\", \"actual\": \"pending\", \"expected\": \"abnormal\", \"passed\": false}, {\"check\": \"fixture 3\", \"actual\": \"complete\", \"expected\": \"complete\", \"passed\": true}, {\"check\": \"fixture 4\", \"actual\": \"pending\", \"expected\": \"pending\", \"passed\": true}, {\"check\": \"fixture 1\", \"actual\": \"complete\", \"expected\": \"pending\", \"passed\": false}], \"passed\": false}\n"}},"member_only":{"stages":["fixed"],"fields":["implementations.fixed","verification.fixed","harness","repair"],"note":"The verified repair, its recorded checks, the repair description, and the scoring harness are available to members."}}