{"abstract":"Zero bounds display numerically instead of as an open-bound placeholder is violated by the widget projection.","category":"Filter interfaces","checks":10,"contract":"The filter stores canonical integer base units while the editor shows exact scaled integers; a unit switch changes presentation without changing the committed quantity. This example checks: Zero bounds display numerically instead of as an open-bound placeholder.","contract_signature":"d","evaluation_group":"s3-filter-interfaces-unit-bound-editor","failed_approach":"The attempted correction `str((d['base'] or 0)//d['scale'])` still violates the explicit contract fixtures.","family":"s3-filter-interfaces-unit-bound-editor-open-placeholder","id":"FA-25316","implementations":{"attempt":{"sha256":"b5a770d1e121f99644f94fe9837117570b9772379f1771a5c180c2989238c0b3","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(d):\n    return {'display-bound':(None if d['base'] is None else d['base']//d['scale']), 'parse-bound':(None if d['text']=='' else int(d['text'])*d['scale']), 'switch-preserve':(d['base']), 'fraction-indicator':(d['base'] is not None and d['base']%d['scale']!=0), 'step-storage':(d['step']*d['scale']), 'open-placeholder':(str((d['base'] or 0)//d['scale']))}\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = {1: [({'base': 0, 'scale': 1, 'text': '', 'step': 1}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '0'}), ({'base': None, 'scale': 1, 'text': '0', 'step': 2}, {'display-bound': None, 'parse-bound': 0, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': 'any'}), ({'base': None, 'scale': 10, 'text': '', 'step': 2}, {'display-bound': None, 'parse-bound': None, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': 'any'}), ({'base': None, 'scale': 10, 'text': '2', 'step': 2}, {'display-bound': None, 'parse-bound': 20, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': 'any'}), ({'base': 0, 'scale': 1, 'text': '0', 'step': 2}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '0'}), ({'base': 0, 'scale': 10, 'text': '', 'step': 2}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': '0'}), ({'base': 0, 'scale': 10, 'text': '2', 'step': 2}, {'display-bound': 0, 'parse-bound': 20, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': '0'}), ({'base': 3, 'scale': 1, 'text': '0', 'step': 2}, {'display-bound': 3, 'parse-bound': 0, 'switch-preserve': 3, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '3'}), ({'base': 3, 'scale': 10, 'text': '', 'step': 2}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 3, 'fraction-indicator': True, 'step-storage': 20, 'open-placeholder': '0'}), ({'base': 3, 'scale': 10, 'text': '2', 'step': 2}, {'display-bound': 0, 'parse-bound': 20, 'switch-preserve': 3, 'fraction-indicator': True, 'step-storage': 20, 'open-placeholder': '0'})], 2: [({'base': 0, 'scale': 1, 'text': '', 'step': 2}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '0'}), ({'base': None, 'scale': 10, 'text': '', 'step': 1}, {'display-bound': None, 'parse-bound': None, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 10, 'open-placeholder': 'any'}), ({'base': 0, 'scale': 1, 'text': '0', 'step': 1}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '0'}), ({'base': 0, 'scale': 10, 'text': '', 'step': 1}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 10, 'open-placeholder': '0'}), ({'base': 0, 'scale': 10, 'text': '2', 'step': 1}, {'display-bound': 0, 'parse-bound': 20, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 10, 'open-placeholder': '0'}), ({'base': 3, 'scale': 1, 'text': '0', 'step': 1}, {'display-bound': 3, 'parse-bound': 0, 'switch-preserve': 3, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '3'}), ({'base': 3, 'scale': 10, 'text': '', 'step': 1}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 3, 'fraction-indicator': True, 'step-storage': 10, 'open-placeholder': '0'}), ({'base': 3, 'scale': 10, 'text': '2', 'step': 1}, {'display-bound': 0, 'parse-bound': 20, 'switch-preserve': 3, 'fraction-indicator': True, 'step-storage': 10, 'open-placeholder': '0'}), ({'base': 20, 'scale': 1, 'text': '0', 'step': 1}, {'display-bound': 20, 'parse-bound': 0, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '20'}), ({'base': 20, 'scale': 10, 'text': '', 'step': 1}, {'display-bound': 2, 'parse-bound': None, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 10, 'open-placeholder': '2'})], 3: [({'base': 0, 'scale': 1, 'text': '0', 'step': 1}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '0'}), ({'base': None, 'scale': 10, 'text': '0', 'step': 2}, {'display-bound': None, 'parse-bound': 0, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': 'any'}), ({'base': 0, 'scale': 10, 'text': '0', 'step': 2}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': '0'}), ({'base': 3, 'scale': 1, 'text': '', 'step': 2}, {'display-bound': 3, 'parse-bound': None, 'switch-preserve': 3, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '3'}), ({'base': 3, 'scale': 1, 'text': '2', 'step': 2}, {'display-bound': 3, 'parse-bound': 2, 'switch-preserve': 3, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '3'}), ({'base': 3, 'scale': 10, 'text': '0', 'step': 2}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 3, 'fraction-indicator': True, 'step-storage': 20, 'open-placeholder': '0'}), ({'base': 20, 'scale': 1, 'text': '', 'step': 2}, {'display-bound': 20, 'parse-bound': None, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '20'}), ({'base': 20, 'scale': 1, 'text': '2', 'step': 2}, {'display-bound': 20, 'parse-bound': 2, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '20'}), ({'base': 20, 'scale': 10, 'text': '0', 'step': 2}, {'display-bound': 2, 'parse-bound': 0, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': '2'}), ({'base': None, 'scale': 1, 'text': '', 'step': 2}, {'display-bound': None, 'parse-bound': None, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': 'any'})], 4: [({'base': 0, 'scale': 1, 'text': '0', 'step': 2}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '0'}), ({'base': None, 'scale': 1, 'text': '', 'step': 1}, {'display-bound': None, 'parse-bound': None, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': 'any'}), ({'base': 3, 'scale': 1, 'text': '2', 'step': 1}, {'display-bound': 3, 'parse-bound': 2, 'switch-preserve': 3, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '3'}), ({'base': 3, 'scale': 10, 'text': '0', 'step': 1}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 3, 'fraction-indicator': True, 'step-storage': 10, 'open-placeholder': '0'}), ({'base': 20, 'scale': 1, 'text': '', 'step': 1}, {'display-bound': 20, 'parse-bound': None, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '20'}), ({'base': 20, 'scale': 1, 'text': '2', 'step': 1}, {'display-bound': 20, 'parse-bound': 2, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '20'}), ({'base': 20, 'scale': 10, 'text': '0', 'step': 1}, {'display-bound': 2, 'parse-bound': 0, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 10, 'open-placeholder': '2'}), ({'base': None, 'scale': 1, 'text': '2', 'step': 1}, {'display-bound': None, 'parse-bound': 2, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': 'any'}), ({'base': None, 'scale': 10, 'text': '0', 'step': 1}, {'display-bound': None, 'parse-bound': 0, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 10, 'open-placeholder': 'any'}), ({'base': 0, 'scale': 1, 'text': '', 'step': 1}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '0'})], 5: [({'base': 0, 'scale': 1, 'text': '2', 'step': 1}, {'display-bound': 0, 'parse-bound': 2, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '0'}), ({'base': None, 'scale': 1, 'text': '0', 'step': 2}, {'display-bound': None, 'parse-bound': 0, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': 'any'}), ({'base': 3, 'scale': 10, 'text': '2', 'step': 2}, {'display-bound': 0, 'parse-bound': 20, 'switch-preserve': 3, 'fraction-indicator': True, 'step-storage': 20, 'open-placeholder': '0'}), ({'base': 20, 'scale': 1, 'text': '0', 'step': 2}, {'display-bound': 20, 'parse-bound': 0, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '20'}), ({'base': 20, 'scale': 10, 'text': '', 'step': 2}, {'display-bound': 2, 'parse-bound': None, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': '2'}), ({'base': 20, 'scale': 10, 'text': '2', 'step': 2}, {'display-bound': 2, 'parse-bound': 20, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': '2'}), ({'base': None, 'scale': 10, 'text': '', 'step': 2}, {'display-bound': None, 'parse-bound': None, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': 'any'}), ({'base': None, 'scale': 10, 'text': '2', 'step': 2}, {'display-bound': None, 'parse-bound': 20, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': 'any'}), ({'base': 0, 'scale': 1, 'text': '0', 'step': 2}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '0'}), ({'base': 0, 'scale': 10, 'text': '', 'step': 2}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': '0'})]}\nfor index, (data, expected) in enumerate(fixtures[N]):\n    check(\"contract fixture \" + str(index), solve(data), expected)\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":"c316a45d956483e0bcd8bcbcaa4486a31392378b928701f77c8784f57c6b16ac","source":"\"\"\"Failure Map reference implementation. Python standard library only.\"\"\"\nimport json\n\nN = 1\nobservations = []\ndef solve(d):\n    return {'display-bound':(None if d['base'] is None else d['base']//d['scale']), 'parse-bound':(None if d['text']=='' else int(d['text'])*d['scale']), 'switch-preserve':(d['base']), 'fraction-indicator':(d['base'] is not None and d['base']%d['scale']!=0), 'step-storage':(d['step']*d['scale']), 'open-placeholder':('any' if not d['base'] else str(d['base']//d['scale']))}\ndef check(label, actual, expected):\n    observations.append({\"check\": label, \"actual\": actual, \"expected\": expected, \"passed\": actual == expected})\nfixtures = {1: [({'base': 0, 'scale': 1, 'text': '', 'step': 1}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '0'}), ({'base': None, 'scale': 1, 'text': '0', 'step': 2}, {'display-bound': None, 'parse-bound': 0, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': 'any'}), ({'base': None, 'scale': 10, 'text': '', 'step': 2}, {'display-bound': None, 'parse-bound': None, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': 'any'}), ({'base': None, 'scale': 10, 'text': '2', 'step': 2}, {'display-bound': None, 'parse-bound': 20, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': 'any'}), ({'base': 0, 'scale': 1, 'text': '0', 'step': 2}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '0'}), ({'base': 0, 'scale': 10, 'text': '', 'step': 2}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': '0'}), ({'base': 0, 'scale': 10, 'text': '2', 'step': 2}, {'display-bound': 0, 'parse-bound': 20, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': '0'}), ({'base': 3, 'scale': 1, 'text': '0', 'step': 2}, {'display-bound': 3, 'parse-bound': 0, 'switch-preserve': 3, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '3'}), ({'base': 3, 'scale': 10, 'text': '', 'step': 2}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 3, 'fraction-indicator': True, 'step-storage': 20, 'open-placeholder': '0'}), ({'base': 3, 'scale': 10, 'text': '2', 'step': 2}, {'display-bound': 0, 'parse-bound': 20, 'switch-preserve': 3, 'fraction-indicator': True, 'step-storage': 20, 'open-placeholder': '0'})], 2: [({'base': 0, 'scale': 1, 'text': '', 'step': 2}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '0'}), ({'base': None, 'scale': 10, 'text': '', 'step': 1}, {'display-bound': None, 'parse-bound': None, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 10, 'open-placeholder': 'any'}), ({'base': 0, 'scale': 1, 'text': '0', 'step': 1}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '0'}), ({'base': 0, 'scale': 10, 'text': '', 'step': 1}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 10, 'open-placeholder': '0'}), ({'base': 0, 'scale': 10, 'text': '2', 'step': 1}, {'display-bound': 0, 'parse-bound': 20, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 10, 'open-placeholder': '0'}), ({'base': 3, 'scale': 1, 'text': '0', 'step': 1}, {'display-bound': 3, 'parse-bound': 0, 'switch-preserve': 3, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '3'}), ({'base': 3, 'scale': 10, 'text': '', 'step': 1}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 3, 'fraction-indicator': True, 'step-storage': 10, 'open-placeholder': '0'}), ({'base': 3, 'scale': 10, 'text': '2', 'step': 1}, {'display-bound': 0, 'parse-bound': 20, 'switch-preserve': 3, 'fraction-indicator': True, 'step-storage': 10, 'open-placeholder': '0'}), ({'base': 20, 'scale': 1, 'text': '0', 'step': 1}, {'display-bound': 20, 'parse-bound': 0, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '20'}), ({'base': 20, 'scale': 10, 'text': '', 'step': 1}, {'display-bound': 2, 'parse-bound': None, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 10, 'open-placeholder': '2'})], 3: [({'base': 0, 'scale': 1, 'text': '0', 'step': 1}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '0'}), ({'base': None, 'scale': 10, 'text': '0', 'step': 2}, {'display-bound': None, 'parse-bound': 0, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': 'any'}), ({'base': 0, 'scale': 10, 'text': '0', 'step': 2}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': '0'}), ({'base': 3, 'scale': 1, 'text': '', 'step': 2}, {'display-bound': 3, 'parse-bound': None, 'switch-preserve': 3, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '3'}), ({'base': 3, 'scale': 1, 'text': '2', 'step': 2}, {'display-bound': 3, 'parse-bound': 2, 'switch-preserve': 3, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '3'}), ({'base': 3, 'scale': 10, 'text': '0', 'step': 2}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 3, 'fraction-indicator': True, 'step-storage': 20, 'open-placeholder': '0'}), ({'base': 20, 'scale': 1, 'text': '', 'step': 2}, {'display-bound': 20, 'parse-bound': None, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '20'}), ({'base': 20, 'scale': 1, 'text': '2', 'step': 2}, {'display-bound': 20, 'parse-bound': 2, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '20'}), ({'base': 20, 'scale': 10, 'text': '0', 'step': 2}, {'display-bound': 2, 'parse-bound': 0, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': '2'}), ({'base': None, 'scale': 1, 'text': '', 'step': 2}, {'display-bound': None, 'parse-bound': None, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': 'any'})], 4: [({'base': 0, 'scale': 1, 'text': '0', 'step': 2}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '0'}), ({'base': None, 'scale': 1, 'text': '', 'step': 1}, {'display-bound': None, 'parse-bound': None, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': 'any'}), ({'base': 3, 'scale': 1, 'text': '2', 'step': 1}, {'display-bound': 3, 'parse-bound': 2, 'switch-preserve': 3, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '3'}), ({'base': 3, 'scale': 10, 'text': '0', 'step': 1}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 3, 'fraction-indicator': True, 'step-storage': 10, 'open-placeholder': '0'}), ({'base': 20, 'scale': 1, 'text': '', 'step': 1}, {'display-bound': 20, 'parse-bound': None, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '20'}), ({'base': 20, 'scale': 1, 'text': '2', 'step': 1}, {'display-bound': 20, 'parse-bound': 2, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '20'}), ({'base': 20, 'scale': 10, 'text': '0', 'step': 1}, {'display-bound': 2, 'parse-bound': 0, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 10, 'open-placeholder': '2'}), ({'base': None, 'scale': 1, 'text': '2', 'step': 1}, {'display-bound': None, 'parse-bound': 2, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': 'any'}), ({'base': None, 'scale': 10, 'text': '0', 'step': 1}, {'display-bound': None, 'parse-bound': 0, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 10, 'open-placeholder': 'any'}), ({'base': 0, 'scale': 1, 'text': '', 'step': 1}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '0'})], 5: [({'base': 0, 'scale': 1, 'text': '2', 'step': 1}, {'display-bound': 0, 'parse-bound': 2, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 1, 'open-placeholder': '0'}), ({'base': None, 'scale': 1, 'text': '0', 'step': 2}, {'display-bound': None, 'parse-bound': 0, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': 'any'}), ({'base': 3, 'scale': 10, 'text': '2', 'step': 2}, {'display-bound': 0, 'parse-bound': 20, 'switch-preserve': 3, 'fraction-indicator': True, 'step-storage': 20, 'open-placeholder': '0'}), ({'base': 20, 'scale': 1, 'text': '0', 'step': 2}, {'display-bound': 20, 'parse-bound': 0, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '20'}), ({'base': 20, 'scale': 10, 'text': '', 'step': 2}, {'display-bound': 2, 'parse-bound': None, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': '2'}), ({'base': 20, 'scale': 10, 'text': '2', 'step': 2}, {'display-bound': 2, 'parse-bound': 20, 'switch-preserve': 20, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': '2'}), ({'base': None, 'scale': 10, 'text': '', 'step': 2}, {'display-bound': None, 'parse-bound': None, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': 'any'}), ({'base': None, 'scale': 10, 'text': '2', 'step': 2}, {'display-bound': None, 'parse-bound': 20, 'switch-preserve': None, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': 'any'}), ({'base': 0, 'scale': 1, 'text': '0', 'step': 2}, {'display-bound': 0, 'parse-bound': 0, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 2, 'open-placeholder': '0'}), ({'base': 0, 'scale': 10, 'text': '', 'step': 2}, {'display-bound': 0, 'parse-bound': None, 'switch-preserve': 0, 'fraction-indicator': False, 'step-storage': 20, 'open-placeholder': '0'})]}\nfor index, (data, expected) in enumerate(fixtures[N]):\n    check(\"contract fixture \" + str(index), solve(data), expected)\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":"Deterministic bounded UI-state model only; no browser, query engine, network, or production-standard conformance is claimed. 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":"s3-filter-interfaces-unit-bound-editor-open-placeholder","generated_at":"2026-09-29T14:41:05.543519+00:00","license":"CC0-1.0","python":"3.12.14","seed":1,"split":"open-access"},"relevance":"Filter-widget state and serialization must preserve user constraints while the view changes.","root_cause":"The open-placeholder decision uses `'any' if not d['base'] else str(d['base']//d['scale'])` instead of the stipulated unit-bound-editor projection.","sha256":"1d84f9070b00269622ee1bd6569684903d7b3f2ed76d2a42bb125ee63cc82d3d","title":"Zero bounds display numerically instead of as an open-bound placeholder · 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":39.235,"exit_code":1,"observations":[{"actual":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"0","parse-bound":null,"step-storage":1,"switch-preserve":0},"check":"contract fixture 0","expected":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"0","parse-bound":null,"step-storage":1,"switch-preserve":0},"passed":true},{"actual":{"display-bound":null,"fraction-indicator":false,"open-placeholder":"0","parse-bound":0,"step-storage":2,"switch-preserve":null},"check":"contract fixture 1","expected":{"display-bound":null,"fraction-indicator":false,"open-placeholder":"any","parse-bound":0,"step-storage":2,"switch-preserve":null},"passed":false},{"actual":{"display-bound":null,"fraction-indicator":false,"open-placeholder":"0","parse-bound":null,"step-storage":20,"switch-preserve":null},"check":"contract fixture 2","expected":{"display-bound":null,"fraction-indicator":false,"open-placeholder":"any","parse-bound":null,"step-storage":20,"switch-preserve":null},"passed":false},{"actual":{"display-bound":null,"fraction-indicator":false,"open-placeholder":"0","parse-bound":20,"step-storage":20,"switch-preserve":null},"check":"contract fixture 3","expected":{"display-bound":null,"fraction-indicator":false,"open-placeholder":"any","parse-bound":20,"step-storage":20,"switch-preserve":null},"passed":false},{"actual":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"0","parse-bound":0,"step-storage":2,"switch-preserve":0},"check":"contract fixture 4","expected":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"0","parse-bound":0,"step-storage":2,"switch-preserve":0},"passed":true},{"actual":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"0","parse-bound":null,"step-storage":20,"switch-preserve":0},"check":"contract fixture 5","expected":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"0","parse-bound":null,"step-storage":20,"switch-preserve":0},"passed":true},{"actual":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"0","parse-bound":20,"step-storage":20,"switch-preserve":0},"check":"contract fixture 6","expected":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"0","parse-bound":20,"step-storage":20,"switch-preserve":0},"passed":true},{"actual":{"display-bound":3,"fraction-indicator":false,"open-placeholder":"3","parse-bound":0,"step-storage":2,"switch-preserve":3},"check":"contract fixture 7","expected":{"display-bound":3,"fraction-indicator":false,"open-placeholder":"3","parse-bound":0,"step-storage":2,"switch-preserve":3},"passed":true},{"actual":{"display-bound":0,"fraction-indicator":true,"open-placeholder":"0","parse-bound":null,"step-storage":20,"switch-preserve":3},"check":"contract fixture 8","expected":{"display-bound":0,"fraction-indicator":true,"open-placeholder":"0","parse-bound":null,"step-storage":20,"switch-preserve":3},"passed":true},{"actual":{"display-bound":0,"fraction-indicator":true,"open-placeholder":"0","parse-bound":20,"step-storage":20,"switch-preserve":3},"check":"contract fixture 9","expected":{"display-bound":0,"fraction-indicator":true,"open-placeholder":"0","parse-bound":20,"step-storage":20,"switch-preserve":3},"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"contract fixture 0\", \"actual\": {\"display-bound\": 0, \"parse-bound\": null, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 1, \"open-placeholder\": \"0\"}, \"expected\": {\"display-bound\": 0, \"parse-bound\": null, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 1, \"open-placeholder\": \"0\"}, \"passed\": true}, {\"check\": \"contract fixture 1\", \"actual\": {\"display-bound\": null, \"parse-bound\": 0, \"switch-preserve\": null, \"fraction-indicator\": false, \"step-storage\": 2, \"open-placeholder\": \"0\"}, \"expected\": {\"display-bound\": null, \"parse-bound\": 0, \"switch-preserve\": null, \"fraction-indicator\": false, \"step-storage\": 2, \"open-placeholder\": \"any\"}, \"passed\": false}, {\"check\": \"contract fixture 2\", \"actual\": {\"display-bound\": null, \"parse-bound\": null, \"switch-preserve\": null, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"expected\": {\"display-bound\": null, \"parse-bound\": null, \"switch-preserve\": null, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"any\"}, \"passed\": false}, {\"check\": \"contract fixture 3\", \"actual\": {\"display-bound\": null, \"parse-bound\": 20, \"switch-preserve\": null, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"expected\": {\"display-bound\": null, \"parse-bound\": 20, \"switch-preserve\": null, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"any\"}, \"passed\": false}, {\"check\": \"contract fixture 4\", \"actual\": {\"display-bound\": 0, \"parse-bound\": 0, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 2, \"open-placeholder\": \"0\"}, \"expected\": {\"display-bound\": 0, \"parse-bound\": 0, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 2, \"open-placeholder\": \"0\"}, \"passed\": true}, {\"check\": \"contract fixture 5\", \"actual\": {\"display-bound\": 0, \"parse-bound\": null, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"expected\": {\"display-bound\": 0, \"parse-bound\": null, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"passed\": true}, {\"check\": \"contract fixture 6\", \"actual\": {\"display-bound\": 0, \"parse-bound\": 20, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"expected\": {\"display-bound\": 0, \"parse-bound\": 20, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"passed\": true}, {\"check\": \"contract fixture 7\", \"actual\": {\"display-bound\": 3, \"parse-bound\": 0, \"switch-preserve\": 3, \"fraction-indicator\": false, \"step-storage\": 2, \"open-placeholder\": \"3\"}, \"expected\": {\"display-bound\": 3, \"parse-bound\": 0, \"switch-preserve\": 3, \"fraction-indicator\": false, \"step-storage\": 2, \"open-placeholder\": \"3\"}, \"passed\": true}, {\"check\": \"contract fixture 8\", \"actual\": {\"display-bound\": 0, \"parse-bound\": null, \"switch-preserve\": 3, \"fraction-indicator\": true, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"expected\": {\"display-bound\": 0, \"parse-bound\": null, \"switch-preserve\": 3, \"fraction-indicator\": true, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"passed\": true}, {\"check\": \"contract fixture 9\", \"actual\": {\"display-bound\": 0, \"parse-bound\": 20, \"switch-preserve\": 3, \"fraction-indicator\": true, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"expected\": {\"display-bound\": 0, \"parse-bound\": 20, \"switch-preserve\": 3, \"fraction-indicator\": true, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"passed\": true}], \"passed\": false}\n"},"broken":{"elapsed_ms":38.917,"exit_code":1,"observations":[{"actual":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"any","parse-bound":null,"step-storage":1,"switch-preserve":0},"check":"contract fixture 0","expected":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"0","parse-bound":null,"step-storage":1,"switch-preserve":0},"passed":false},{"actual":{"display-bound":null,"fraction-indicator":false,"open-placeholder":"any","parse-bound":0,"step-storage":2,"switch-preserve":null},"check":"contract fixture 1","expected":{"display-bound":null,"fraction-indicator":false,"open-placeholder":"any","parse-bound":0,"step-storage":2,"switch-preserve":null},"passed":true},{"actual":{"display-bound":null,"fraction-indicator":false,"open-placeholder":"any","parse-bound":null,"step-storage":20,"switch-preserve":null},"check":"contract fixture 2","expected":{"display-bound":null,"fraction-indicator":false,"open-placeholder":"any","parse-bound":null,"step-storage":20,"switch-preserve":null},"passed":true},{"actual":{"display-bound":null,"fraction-indicator":false,"open-placeholder":"any","parse-bound":20,"step-storage":20,"switch-preserve":null},"check":"contract fixture 3","expected":{"display-bound":null,"fraction-indicator":false,"open-placeholder":"any","parse-bound":20,"step-storage":20,"switch-preserve":null},"passed":true},{"actual":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"any","parse-bound":0,"step-storage":2,"switch-preserve":0},"check":"contract fixture 4","expected":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"0","parse-bound":0,"step-storage":2,"switch-preserve":0},"passed":false},{"actual":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"any","parse-bound":null,"step-storage":20,"switch-preserve":0},"check":"contract fixture 5","expected":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"0","parse-bound":null,"step-storage":20,"switch-preserve":0},"passed":false},{"actual":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"any","parse-bound":20,"step-storage":20,"switch-preserve":0},"check":"contract fixture 6","expected":{"display-bound":0,"fraction-indicator":false,"open-placeholder":"0","parse-bound":20,"step-storage":20,"switch-preserve":0},"passed":false},{"actual":{"display-bound":3,"fraction-indicator":false,"open-placeholder":"3","parse-bound":0,"step-storage":2,"switch-preserve":3},"check":"contract fixture 7","expected":{"display-bound":3,"fraction-indicator":false,"open-placeholder":"3","parse-bound":0,"step-storage":2,"switch-preserve":3},"passed":true},{"actual":{"display-bound":0,"fraction-indicator":true,"open-placeholder":"0","parse-bound":null,"step-storage":20,"switch-preserve":3},"check":"contract fixture 8","expected":{"display-bound":0,"fraction-indicator":true,"open-placeholder":"0","parse-bound":null,"step-storage":20,"switch-preserve":3},"passed":true},{"actual":{"display-bound":0,"fraction-indicator":true,"open-placeholder":"0","parse-bound":20,"step-storage":20,"switch-preserve":3},"check":"contract fixture 9","expected":{"display-bound":0,"fraction-indicator":true,"open-placeholder":"0","parse-bound":20,"step-storage":20,"switch-preserve":3},"passed":true}],"passed":false,"stderr":"","stdout":"{\"observations\": [{\"check\": \"contract fixture 0\", \"actual\": {\"display-bound\": 0, \"parse-bound\": null, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 1, \"open-placeholder\": \"any\"}, \"expected\": {\"display-bound\": 0, \"parse-bound\": null, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 1, \"open-placeholder\": \"0\"}, \"passed\": false}, {\"check\": \"contract fixture 1\", \"actual\": {\"display-bound\": null, \"parse-bound\": 0, \"switch-preserve\": null, \"fraction-indicator\": false, \"step-storage\": 2, \"open-placeholder\": \"any\"}, \"expected\": {\"display-bound\": null, \"parse-bound\": 0, \"switch-preserve\": null, \"fraction-indicator\": false, \"step-storage\": 2, \"open-placeholder\": \"any\"}, \"passed\": true}, {\"check\": \"contract fixture 2\", \"actual\": {\"display-bound\": null, \"parse-bound\": null, \"switch-preserve\": null, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"any\"}, \"expected\": {\"display-bound\": null, \"parse-bound\": null, \"switch-preserve\": null, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"any\"}, \"passed\": true}, {\"check\": \"contract fixture 3\", \"actual\": {\"display-bound\": null, \"parse-bound\": 20, \"switch-preserve\": null, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"any\"}, \"expected\": {\"display-bound\": null, \"parse-bound\": 20, \"switch-preserve\": null, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"any\"}, \"passed\": true}, {\"check\": \"contract fixture 4\", \"actual\": {\"display-bound\": 0, \"parse-bound\": 0, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 2, \"open-placeholder\": \"any\"}, \"expected\": {\"display-bound\": 0, \"parse-bound\": 0, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 2, \"open-placeholder\": \"0\"}, \"passed\": false}, {\"check\": \"contract fixture 5\", \"actual\": {\"display-bound\": 0, \"parse-bound\": null, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"any\"}, \"expected\": {\"display-bound\": 0, \"parse-bound\": null, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"passed\": false}, {\"check\": \"contract fixture 6\", \"actual\": {\"display-bound\": 0, \"parse-bound\": 20, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"any\"}, \"expected\": {\"display-bound\": 0, \"parse-bound\": 20, \"switch-preserve\": 0, \"fraction-indicator\": false, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"passed\": false}, {\"check\": \"contract fixture 7\", \"actual\": {\"display-bound\": 3, \"parse-bound\": 0, \"switch-preserve\": 3, \"fraction-indicator\": false, \"step-storage\": 2, \"open-placeholder\": \"3\"}, \"expected\": {\"display-bound\": 3, \"parse-bound\": 0, \"switch-preserve\": 3, \"fraction-indicator\": false, \"step-storage\": 2, \"open-placeholder\": \"3\"}, \"passed\": true}, {\"check\": \"contract fixture 8\", \"actual\": {\"display-bound\": 0, \"parse-bound\": null, \"switch-preserve\": 3, \"fraction-indicator\": true, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"expected\": {\"display-bound\": 0, \"parse-bound\": null, \"switch-preserve\": 3, \"fraction-indicator\": true, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"passed\": true}, {\"check\": \"contract fixture 9\", \"actual\": {\"display-bound\": 0, \"parse-bound\": 20, \"switch-preserve\": 3, \"fraction-indicator\": true, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"expected\": {\"display-bound\": 0, \"parse-bound\": 20, \"switch-preserve\": 3, \"fraction-indicator\": true, \"step-storage\": 20, \"open-placeholder\": \"0\"}, \"passed\": true}], \"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."}}