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FA-36221 / Tab interfaces / Open access

Tab resource sharing: document close eligibility · case 01

The tab workspace reports an incorrect document close eligibility.

Verified by executionVariant 1 · 6 checks per implementationDownload source bundle ↓JSON ↗

ROOT CAUSE

The document close eligibility decision uses True instead of not any(v!=x['closing'] and d==x['views'][x['closing']] for v,d in x['views'].items()).

VERIFIED REPAIR

Use the stipulated workspace rule: not any(v!=x['closing'] and d==x['views'][x['closing']] for v,d in x['views'].items()).

Unsuccessful approach: The partial repair len(x['views'])==1 still violates a workspace boundary or normal case.

Case contract

Several tab views may share one document. Closing one view releases only its view resources and closes document resources only when no other view references that document.

Why this case matters

Offline tab/panel workspace behavior; no browser or desktop framework is emulated.

1 / The failure

Exit 1
"""Failure Map reference implementation. Python standard library only."""
import json

N = 1
observations = []
def solve(x):
    r0 = {v:d for v,d in x['views'].items() if v!=x['closing']}
    r1 = sum(v!=x['closing'] and d==x['views'][x['closing']] for v,d in x['views'].items())
    r2 = True
    r3 = x['subscriptions'][x['closing']]
    r4 = x['document_handles'][x['views'][x['closing']]] if not any(v!=x['closing'] and d==x['views'][x['closing']] for v,d in x['views'].items()) else 0
    r5 = [v for v,d in x['views'].items() if v!=x['closing'] and d==x['views'][x['closing']]]
    return [r0,r1,r2,r3,r4,r5]
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = {1: [({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 2, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4}}, [{'b': 'd', 'c': 'e'}, 1, False, 2, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'c', 'subscriptions': {'a': 2, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4}}, [{'a': 'd', 'b': 'd'}, 0, True, 1, 4, []]), ({'views': {'a': 'd', 'b': 'e', 'c': 'f'}, 'closing': 'a', 'subscriptions': {'a': 2, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4, 'f': 1}}, [{'b': 'e', 'c': 'f'}, 0, True, 2, 7, []]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 0, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4}}, [{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'b', 'subscriptions': {'a': 2, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4}}, [{'a': 'd', 'c': 'e'}, 1, False, 3, 0, ['a']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'd'}, 'closing': 'a', 'subscriptions': {'a': 2, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4}}, [{'b': 'd', 'c': 'd'}, 2, False, 2, 0, ['b', 'c']])], 2: [({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 4, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8}}, [{'b': 'd', 'c': 'e'}, 1, False, 4, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'c', 'subscriptions': {'a': 4, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8}}, [{'a': 'd', 'b': 'd'}, 0, True, 2, 8, []]), ({'views': {'a': 'd', 'b': 'e', 'c': 'f'}, 'closing': 'a', 'subscriptions': {'a': 4, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8, 'f': 2}}, [{'b': 'e', 'c': 'f'}, 0, True, 4, 14, []]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 0, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8}}, [{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'b', 'subscriptions': {'a': 4, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8}}, [{'a': 'd', 'c': 'e'}, 1, False, 6, 0, ['a']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'd'}, 'closing': 'a', 'subscriptions': {'a': 4, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8}}, [{'b': 'd', 'c': 'd'}, 2, False, 4, 0, ['b', 'c']])], 3: [({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 6, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12}}, [{'b': 'd', 'c': 'e'}, 1, False, 6, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'c', 'subscriptions': {'a': 6, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12}}, [{'a': 'd', 'b': 'd'}, 0, True, 3, 12, []]), ({'views': {'a': 'd', 'b': 'e', 'c': 'f'}, 'closing': 'a', 'subscriptions': {'a': 6, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12, 'f': 3}}, [{'b': 'e', 'c': 'f'}, 0, True, 6, 21, []]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 0, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12}}, [{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'b', 'subscriptions': {'a': 6, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12}}, [{'a': 'd', 'c': 'e'}, 1, False, 9, 0, ['a']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'd'}, 'closing': 'a', 'subscriptions': {'a': 6, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12}}, [{'b': 'd', 'c': 'd'}, 2, False, 6, 0, ['b', 'c']])], 4: [({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 8, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16}}, [{'b': 'd', 'c': 'e'}, 1, False, 8, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'c', 'subscriptions': {'a': 8, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16}}, [{'a': 'd', 'b': 'd'}, 0, True, 4, 16, []]), ({'views': {'a': 'd', 'b': 'e', 'c': 'f'}, 'closing': 'a', 'subscriptions': {'a': 8, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16, 'f': 4}}, [{'b': 'e', 'c': 'f'}, 0, True, 8, 28, []]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 0, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16}}, [{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'b', 'subscriptions': {'a': 8, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16}}, [{'a': 'd', 'c': 'e'}, 1, False, 12, 0, ['a']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'd'}, 'closing': 'a', 'subscriptions': {'a': 8, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16}}, [{'b': 'd', 'c': 'd'}, 2, False, 8, 0, ['b', 'c']])], 5: [({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 10, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20}}, [{'b': 'd', 'c': 'e'}, 1, False, 10, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'c', 'subscriptions': {'a': 10, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20}}, [{'a': 'd', 'b': 'd'}, 0, True, 5, 20, []]), ({'views': {'a': 'd', 'b': 'e', 'c': 'f'}, 'closing': 'a', 'subscriptions': {'a': 10, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20, 'f': 5}}, [{'b': 'e', 'c': 'f'}, 0, True, 10, 35, []]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 0, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20}}, [{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'b', 'subscriptions': {'a': 10, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20}}, [{'a': 'd', 'c': 'e'}, 1, False, 15, 0, ['a']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'd'}, 'closing': 'a', 'subscriptions': {'a': 10, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20}}, [{'b': 'd', 'c': 'd'}, 2, False, 10, 0, ['b', 'c']])]}
for i, (inputs, expected) in enumerate(fixtures[N]):
    check("workspace regression "+str(i), solve(inputs), expected)
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
Boundary fixtureActualExpectedOutcome
workspace regression 0[{'b': 'd', 'c': 'e'}, 1, True, 2, 0, ['b']][{'b': 'd', 'c': 'e'}, 1, False, 2, 0, ['b']]Failed
workspace regression 1[{'a': 'd', 'b': 'd'}, 0, True, 1, 4, []][{'a': 'd', 'b': 'd'}, 0, True, 1, 4, []]Passed
workspace regression 2[{'b': 'e', 'c': 'f'}, 0, True, 2, 7, []][{'b': 'e', 'c': 'f'}, 0, True, 2, 7, []]Passed
workspace regression 3[{'b': 'd', 'c': 'e'}, 1, True, 0, 0, ['b']][{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]Failed
workspace regression 4[{'a': 'd', 'c': 'e'}, 1, True, 3, 0, ['a']][{'a': 'd', 'c': 'e'}, 1, False, 3, 0, ['a']]Failed
workspace regression 5[{'b': 'd', 'c': 'd'}, 2, True, 2, 0, ['b', 'c']][{'b': 'd', 'c': 'd'}, 2, False, 2, 0, ['b', 'c']]Failed

SHA-256 / c8315026e227b392f0ddbc25f98b7074bae66b23d74c1d37d3300b0a63892afc

2 / The unsuccessful fix

Exit 1
"""Failure Map reference implementation. Python standard library only."""
import json

N = 1
observations = []
def solve(x):
    r0 = {v:d for v,d in x['views'].items() if v!=x['closing']}
    r1 = sum(v!=x['closing'] and d==x['views'][x['closing']] for v,d in x['views'].items())
    r2 = len(x['views'])==1
    r3 = x['subscriptions'][x['closing']]
    r4 = x['document_handles'][x['views'][x['closing']]] if not any(v!=x['closing'] and d==x['views'][x['closing']] for v,d in x['views'].items()) else 0
    r5 = [v for v,d in x['views'].items() if v!=x['closing'] and d==x['views'][x['closing']]]
    return [r0,r1,r2,r3,r4,r5]
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = {1: [({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 2, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4}}, [{'b': 'd', 'c': 'e'}, 1, False, 2, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'c', 'subscriptions': {'a': 2, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4}}, [{'a': 'd', 'b': 'd'}, 0, True, 1, 4, []]), ({'views': {'a': 'd', 'b': 'e', 'c': 'f'}, 'closing': 'a', 'subscriptions': {'a': 2, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4, 'f': 1}}, [{'b': 'e', 'c': 'f'}, 0, True, 2, 7, []]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 0, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4}}, [{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'b', 'subscriptions': {'a': 2, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4}}, [{'a': 'd', 'c': 'e'}, 1, False, 3, 0, ['a']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'd'}, 'closing': 'a', 'subscriptions': {'a': 2, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4}}, [{'b': 'd', 'c': 'd'}, 2, False, 2, 0, ['b', 'c']])], 2: [({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 4, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8}}, [{'b': 'd', 'c': 'e'}, 1, False, 4, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'c', 'subscriptions': {'a': 4, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8}}, [{'a': 'd', 'b': 'd'}, 0, True, 2, 8, []]), ({'views': {'a': 'd', 'b': 'e', 'c': 'f'}, 'closing': 'a', 'subscriptions': {'a': 4, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8, 'f': 2}}, [{'b': 'e', 'c': 'f'}, 0, True, 4, 14, []]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 0, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8}}, [{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'b', 'subscriptions': {'a': 4, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8}}, [{'a': 'd', 'c': 'e'}, 1, False, 6, 0, ['a']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'd'}, 'closing': 'a', 'subscriptions': {'a': 4, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8}}, [{'b': 'd', 'c': 'd'}, 2, False, 4, 0, ['b', 'c']])], 3: [({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 6, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12}}, [{'b': 'd', 'c': 'e'}, 1, False, 6, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'c', 'subscriptions': {'a': 6, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12}}, [{'a': 'd', 'b': 'd'}, 0, True, 3, 12, []]), ({'views': {'a': 'd', 'b': 'e', 'c': 'f'}, 'closing': 'a', 'subscriptions': {'a': 6, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12, 'f': 3}}, [{'b': 'e', 'c': 'f'}, 0, True, 6, 21, []]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 0, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12}}, [{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'b', 'subscriptions': {'a': 6, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12}}, [{'a': 'd', 'c': 'e'}, 1, False, 9, 0, ['a']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'd'}, 'closing': 'a', 'subscriptions': {'a': 6, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12}}, [{'b': 'd', 'c': 'd'}, 2, False, 6, 0, ['b', 'c']])], 4: [({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 8, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16}}, [{'b': 'd', 'c': 'e'}, 1, False, 8, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'c', 'subscriptions': {'a': 8, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16}}, [{'a': 'd', 'b': 'd'}, 0, True, 4, 16, []]), ({'views': {'a': 'd', 'b': 'e', 'c': 'f'}, 'closing': 'a', 'subscriptions': {'a': 8, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16, 'f': 4}}, [{'b': 'e', 'c': 'f'}, 0, True, 8, 28, []]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 0, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16}}, [{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'b', 'subscriptions': {'a': 8, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16}}, [{'a': 'd', 'c': 'e'}, 1, False, 12, 0, ['a']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'd'}, 'closing': 'a', 'subscriptions': {'a': 8, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16}}, [{'b': 'd', 'c': 'd'}, 2, False, 8, 0, ['b', 'c']])], 5: [({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 10, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20}}, [{'b': 'd', 'c': 'e'}, 1, False, 10, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'c', 'subscriptions': {'a': 10, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20}}, [{'a': 'd', 'b': 'd'}, 0, True, 5, 20, []]), ({'views': {'a': 'd', 'b': 'e', 'c': 'f'}, 'closing': 'a', 'subscriptions': {'a': 10, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20, 'f': 5}}, [{'b': 'e', 'c': 'f'}, 0, True, 10, 35, []]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 0, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20}}, [{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'b', 'subscriptions': {'a': 10, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20}}, [{'a': 'd', 'c': 'e'}, 1, False, 15, 0, ['a']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'd'}, 'closing': 'a', 'subscriptions': {'a': 10, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20}}, [{'b': 'd', 'c': 'd'}, 2, False, 10, 0, ['b', 'c']])]}
for i, (inputs, expected) in enumerate(fixtures[N]):
    check("workspace regression "+str(i), solve(inputs), expected)
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
Boundary fixtureActualExpectedOutcome
workspace regression 0[{'b': 'd', 'c': 'e'}, 1, False, 2, 0, ['b']][{'b': 'd', 'c': 'e'}, 1, False, 2, 0, ['b']]Passed
workspace regression 1[{'a': 'd', 'b': 'd'}, 0, False, 1, 4, []][{'a': 'd', 'b': 'd'}, 0, True, 1, 4, []]Failed
workspace regression 2[{'b': 'e', 'c': 'f'}, 0, False, 2, 7, []][{'b': 'e', 'c': 'f'}, 0, True, 2, 7, []]Failed
workspace regression 3[{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']][{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]Passed
workspace regression 4[{'a': 'd', 'c': 'e'}, 1, False, 3, 0, ['a']][{'a': 'd', 'c': 'e'}, 1, False, 3, 0, ['a']]Passed
workspace regression 5[{'b': 'd', 'c': 'd'}, 2, False, 2, 0, ['b', 'c']][{'b': 'd', 'c': 'd'}, 2, False, 2, 0, ['b', 'c']]Passed

SHA-256 / 64f281dc61b9bfaebd63f5a03a22662b6525e79cfa0013724815601e7997b059

3 / The verified repair

Exit 0
"""Failure Map reference implementation. Python standard library only."""
import json

N = 1
observations = []
def solve(x):
    r0 = {v:d for v,d in x['views'].items() if v!=x['closing']}
    r1 = sum(v!=x['closing'] and d==x['views'][x['closing']] for v,d in x['views'].items())
    r2 = not any(v!=x['closing'] and d==x['views'][x['closing']] for v,d in x['views'].items())
    r3 = x['subscriptions'][x['closing']]
    r4 = x['document_handles'][x['views'][x['closing']]] if not any(v!=x['closing'] and d==x['views'][x['closing']] for v,d in x['views'].items()) else 0
    r5 = [v for v,d in x['views'].items() if v!=x['closing'] and d==x['views'][x['closing']]]
    return [r0,r1,r2,r3,r4,r5]
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = {1: [({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 2, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4}}, [{'b': 'd', 'c': 'e'}, 1, False, 2, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'c', 'subscriptions': {'a': 2, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4}}, [{'a': 'd', 'b': 'd'}, 0, True, 1, 4, []]), ({'views': {'a': 'd', 'b': 'e', 'c': 'f'}, 'closing': 'a', 'subscriptions': {'a': 2, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4, 'f': 1}}, [{'b': 'e', 'c': 'f'}, 0, True, 2, 7, []]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 0, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4}}, [{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'b', 'subscriptions': {'a': 2, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4}}, [{'a': 'd', 'c': 'e'}, 1, False, 3, 0, ['a']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'd'}, 'closing': 'a', 'subscriptions': {'a': 2, 'b': 3, 'c': 1}, 'document_handles': {'d': 7, 'e': 4}}, [{'b': 'd', 'c': 'd'}, 2, False, 2, 0, ['b', 'c']])], 2: [({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 4, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8}}, [{'b': 'd', 'c': 'e'}, 1, False, 4, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'c', 'subscriptions': {'a': 4, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8}}, [{'a': 'd', 'b': 'd'}, 0, True, 2, 8, []]), ({'views': {'a': 'd', 'b': 'e', 'c': 'f'}, 'closing': 'a', 'subscriptions': {'a': 4, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8, 'f': 2}}, [{'b': 'e', 'c': 'f'}, 0, True, 4, 14, []]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 0, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8}}, [{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'b', 'subscriptions': {'a': 4, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8}}, [{'a': 'd', 'c': 'e'}, 1, False, 6, 0, ['a']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'd'}, 'closing': 'a', 'subscriptions': {'a': 4, 'b': 6, 'c': 2}, 'document_handles': {'d': 14, 'e': 8}}, [{'b': 'd', 'c': 'd'}, 2, False, 4, 0, ['b', 'c']])], 3: [({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 6, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12}}, [{'b': 'd', 'c': 'e'}, 1, False, 6, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'c', 'subscriptions': {'a': 6, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12}}, [{'a': 'd', 'b': 'd'}, 0, True, 3, 12, []]), ({'views': {'a': 'd', 'b': 'e', 'c': 'f'}, 'closing': 'a', 'subscriptions': {'a': 6, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12, 'f': 3}}, [{'b': 'e', 'c': 'f'}, 0, True, 6, 21, []]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 0, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12}}, [{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'b', 'subscriptions': {'a': 6, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12}}, [{'a': 'd', 'c': 'e'}, 1, False, 9, 0, ['a']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'd'}, 'closing': 'a', 'subscriptions': {'a': 6, 'b': 9, 'c': 3}, 'document_handles': {'d': 21, 'e': 12}}, [{'b': 'd', 'c': 'd'}, 2, False, 6, 0, ['b', 'c']])], 4: [({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 8, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16}}, [{'b': 'd', 'c': 'e'}, 1, False, 8, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'c', 'subscriptions': {'a': 8, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16}}, [{'a': 'd', 'b': 'd'}, 0, True, 4, 16, []]), ({'views': {'a': 'd', 'b': 'e', 'c': 'f'}, 'closing': 'a', 'subscriptions': {'a': 8, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16, 'f': 4}}, [{'b': 'e', 'c': 'f'}, 0, True, 8, 28, []]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 0, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16}}, [{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'b', 'subscriptions': {'a': 8, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16}}, [{'a': 'd', 'c': 'e'}, 1, False, 12, 0, ['a']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'd'}, 'closing': 'a', 'subscriptions': {'a': 8, 'b': 12, 'c': 4}, 'document_handles': {'d': 28, 'e': 16}}, [{'b': 'd', 'c': 'd'}, 2, False, 8, 0, ['b', 'c']])], 5: [({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 10, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20}}, [{'b': 'd', 'c': 'e'}, 1, False, 10, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'c', 'subscriptions': {'a': 10, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20}}, [{'a': 'd', 'b': 'd'}, 0, True, 5, 20, []]), ({'views': {'a': 'd', 'b': 'e', 'c': 'f'}, 'closing': 'a', 'subscriptions': {'a': 10, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20, 'f': 5}}, [{'b': 'e', 'c': 'f'}, 0, True, 10, 35, []]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'a', 'subscriptions': {'a': 0, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20}}, [{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'e'}, 'closing': 'b', 'subscriptions': {'a': 10, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20}}, [{'a': 'd', 'c': 'e'}, 1, False, 15, 0, ['a']]), ({'views': {'a': 'd', 'b': 'd', 'c': 'd'}, 'closing': 'a', 'subscriptions': {'a': 10, 'b': 15, 'c': 5}, 'document_handles': {'d': 35, 'e': 20}}, [{'b': 'd', 'c': 'd'}, 2, False, 10, 0, ['b', 'c']])]}
for i, (inputs, expected) in enumerate(fixtures[N]):
    check("workspace regression "+str(i), solve(inputs), expected)
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
Boundary fixtureActualExpectedOutcome
workspace regression 0[{'b': 'd', 'c': 'e'}, 1, False, 2, 0, ['b']][{'b': 'd', 'c': 'e'}, 1, False, 2, 0, ['b']]Passed
workspace regression 1[{'a': 'd', 'b': 'd'}, 0, True, 1, 4, []][{'a': 'd', 'b': 'd'}, 0, True, 1, 4, []]Passed
workspace regression 2[{'b': 'e', 'c': 'f'}, 0, True, 2, 7, []][{'b': 'e', 'c': 'f'}, 0, True, 2, 7, []]Passed
workspace regression 3[{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']][{'b': 'd', 'c': 'e'}, 1, False, 0, 0, ['b']]Passed
workspace regression 4[{'a': 'd', 'c': 'e'}, 1, False, 3, 0, ['a']][{'a': 'd', 'c': 'e'}, 1, False, 3, 0, ['a']]Passed
workspace regression 5[{'b': 'd', 'c': 'd'}, 2, False, 2, 0, ['b', 'c']][{'b': 'd', 'c': 'd'}, 2, False, 2, 0, ['b', 'c']]Passed

SHA-256 / 1dfbb02d9805a3ce0afa02418de5d9893ac9e89fdac5efaf493b87b7826b640f

Verification & scope

Finite stipulated workspace snapshots only. Independent result fields describe observable obligations, not a full UI runtime. 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.

Observations recorded using Python 3.12.14 at 2026-09-29T14:42:49.158912+00:00.

Case digest / eb06763f72af26b9453105332d9a030f15c4cf8d1ab45f5ae6e1c8d6a9efba26