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Multiple client roots and portals: Portal host root distinction · case 01

Portal host root distinction.

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ROOT CAUSE

The portal-host-root-distinction client decision evaluates `list(portals)` instead of `[p for p,r in portals.items() if r==owner]`.

THE FAILURE

The portal-host-root-distinction client decision evaluates `list(portals)` instead of `[p for p,r in portals.items() if r==owner]`.

Unsuccessful approach: The partial repair `roots.get(owner,[])` still violates the explicit fixture contract.

Case contract

Portal event ownership follows the logical root rather than its physical host. Root disposal removes only that root and its owned portals; event paths are deduplicated in order and missing containers do not create roots implicitly. Operation portal-host-root-distinction has the six explicit input/output oracles below.

Why this case matters

An offline client lifecycle model that isolates a state-management defect without DOM rendering or network services.

1 / The failure

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

N = 1
observations = []
def solve(operation, s):
    roots, owner, target, portals, event_path, disposed = s
    if operation == 'portal-logical-owner':
        return portals.get(event_path[0]) if event_path and event_path[0] in portals else next((r for r,nodes in roots.items() if event_path and event_path[0] in nodes),None)
    if operation == 'root-disposal-isolation':
        return {r:nodes for r,nodes in roots.items() if r not in disposed}
    if operation == 'owned-portal-cleanup':
        return [p for p,r in portals.items() if r in disposed]
    if operation == 'physical-container-membership':
        return target in roots.get(owner,[])
    if operation == 'event-path-deduplication':
        return list(dict.fromkeys(event_path))
    if operation == 'disposed-owner-no-delivery':
        return owner in roots and owner not in disposed
    if operation == 'portal-host-root-distinction':
        return list(portals)
    if operation == 'unrelated-roots-retention':
        return [r for r in roots if r!=owner]
    if operation == 'root-local-node-count':
        return len(roots.get(owner,[]))
    if operation == 'missing-host-no-implicit-root':
        return next((r for r,nodes in roots.items() if target in nodes),None)
    raise ValueError('unknown modeled operation')
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
check('portal-logical-owner scenario 1', solve('portal-logical-owner', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), 'r1')
check('portal-logical-owner scenario 2', solve('portal-logical-owner', ({},'r1','a',{},[],[],)), None)
check('portal-logical-owner scenario 3', solve('portal-logical-owner', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), 'r1')
check('portal-logical-owner scenario 4', solve('portal-logical-owner', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), 'r2')
check('portal-logical-owner scenario 5', solve('portal-logical-owner', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), 'r1')
check('portal-logical-owner scenario 6', solve('portal-logical-owner', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), 'r1')
check('root-disposal-isolation scenario 1', solve('root-disposal-isolation', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), {'r1':['a','b'],'r2':['c']})
check('root-disposal-isolation scenario 2', solve('root-disposal-isolation', ({},'r1','a',{},[],[],)), {})
check('root-disposal-isolation scenario 3', solve('root-disposal-isolation', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), {})
check('root-disposal-isolation scenario 4', solve('root-disposal-isolation', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), {'r1':['a'],'r2':['b']})
check('root-disposal-isolation scenario 5', solve('root-disposal-isolation', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), {'r1':['a']})
check('root-disposal-isolation scenario 6', solve('root-disposal-isolation', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), {'r1':['a']*N})
check('owned-portal-cleanup scenario 1', solve('owned-portal-cleanup', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), [])
check('owned-portal-cleanup scenario 2', solve('owned-portal-cleanup', ({},'r1','a',{},[],[],)), [])
check('owned-portal-cleanup scenario 3', solve('owned-portal-cleanup', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), ['p'])
check('owned-portal-cleanup scenario 4', solve('owned-portal-cleanup', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), [])
check('owned-portal-cleanup scenario 5', solve('owned-portal-cleanup', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), [])
check('owned-portal-cleanup scenario 6', solve('owned-portal-cleanup', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), [])
check('physical-container-membership scenario 1', solve('physical-container-membership', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), False)
check('physical-container-membership scenario 2', solve('physical-container-membership', ({},'r1','a',{},[],[],)), False)
check('physical-container-membership scenario 3', solve('physical-container-membership', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), True)
check('physical-container-membership scenario 4', solve('physical-container-membership', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), True)
check('physical-container-membership scenario 5', solve('physical-container-membership', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), False)
check('physical-container-membership scenario 6', solve('physical-container-membership', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), True)
check('event-path-deduplication scenario 1', solve('event-path-deduplication', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), ['p','c'])
check('event-path-deduplication scenario 2', solve('event-path-deduplication', ({},'r1','a',{},[],[],)), [])
check('event-path-deduplication scenario 3', solve('event-path-deduplication', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), ['a'])
check('event-path-deduplication scenario 4', solve('event-path-deduplication', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), ['q','b'])
check('event-path-deduplication scenario 5', solve('event-path-deduplication', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), ['p'])
check('event-path-deduplication scenario 6', solve('event-path-deduplication', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), ['a'])
check('disposed-owner-no-delivery scenario 1', solve('disposed-owner-no-delivery', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), True)
check('disposed-owner-no-delivery scenario 2', solve('disposed-owner-no-delivery', ({},'r1','a',{},[],[],)), False)
check('disposed-owner-no-delivery scenario 3', solve('disposed-owner-no-delivery', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), False)
check('disposed-owner-no-delivery scenario 4', solve('disposed-owner-no-delivery', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), True)
check('disposed-owner-no-delivery scenario 5', solve('disposed-owner-no-delivery', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), True)
check('disposed-owner-no-delivery scenario 6', solve('disposed-owner-no-delivery', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), True)
check('portal-host-root-distinction scenario 1', solve('portal-host-root-distinction', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), ['p'])
check('portal-host-root-distinction scenario 2', solve('portal-host-root-distinction', ({},'r1','a',{},[],[],)), [])
check('portal-host-root-distinction scenario 3', solve('portal-host-root-distinction', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), ['p'])
check('portal-host-root-distinction scenario 4', solve('portal-host-root-distinction', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), ['q'])
check('portal-host-root-distinction scenario 5', solve('portal-host-root-distinction', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), ['p'])
check('portal-host-root-distinction scenario 6', solve('portal-host-root-distinction', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), [])
check('unrelated-roots-retention scenario 1', solve('unrelated-roots-retention', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), ['r2'])
check('unrelated-roots-retention scenario 2', solve('unrelated-roots-retention', ({},'r1','a',{},[],[],)), [])
check('unrelated-roots-retention scenario 3', solve('unrelated-roots-retention', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), [])
check('unrelated-roots-retention scenario 4', solve('unrelated-roots-retention', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), ['r1'])
check('unrelated-roots-retention scenario 5', solve('unrelated-roots-retention', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), [])
check('unrelated-roots-retention scenario 6', solve('unrelated-roots-retention', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), [])
check('root-local-node-count scenario 1', solve('root-local-node-count', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), 2)
check('root-local-node-count scenario 2', solve('root-local-node-count', ({},'r1','a',{},[],[],)), 0)
check('root-local-node-count scenario 3', solve('root-local-node-count', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), 1)
check('root-local-node-count scenario 4', solve('root-local-node-count', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), 1)
check('root-local-node-count scenario 5', solve('root-local-node-count', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), 1)
check('root-local-node-count scenario 6', solve('root-local-node-count', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), N)
check('missing-host-no-implicit-root scenario 1', solve('missing-host-no-implicit-root', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), 'r2')
check('missing-host-no-implicit-root scenario 2', solve('missing-host-no-implicit-root', ({},'r1','a',{},[],[],)), None)
check('missing-host-no-implicit-root scenario 3', solve('missing-host-no-implicit-root', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), 'r1')
check('missing-host-no-implicit-root scenario 4', solve('missing-host-no-implicit-root', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), 'r2')
check('missing-host-no-implicit-root scenario 5', solve('missing-host-no-implicit-root', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), None)
check('missing-host-no-implicit-root scenario 6', solve('missing-host-no-implicit-root', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), 'r1')
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
portal-logical-owner scenario 1r1r1Passed
portal-logical-owner scenario 2NoneNonePassed
portal-logical-owner scenario 3r1r1Passed
portal-logical-owner scenario 4r2r2Passed
portal-logical-owner scenario 5r1r1Passed
portal-logical-owner scenario 6r1r1Passed
root-disposal-isolation scenario 1{'r1': ['a', 'b'], 'r2': ['c']}{'r1': ['a', 'b'], 'r2': ['c']}Passed
root-disposal-isolation scenario 2{}{}Passed
root-disposal-isolation scenario 3{}{}Passed
root-disposal-isolation scenario 4{'r1': ['a'], 'r2': ['b']}{'r1': ['a'], 'r2': ['b']}Passed
root-disposal-isolation scenario 5{'r1': ['a']}{'r1': ['a']}Passed
root-disposal-isolation scenario 6{'r1': ['a']}{'r1': ['a']}Passed
owned-portal-cleanup scenario 1[][]Passed
owned-portal-cleanup scenario 2[][]Passed
owned-portal-cleanup scenario 3['p']['p']Passed
owned-portal-cleanup scenario 4[][]Passed
owned-portal-cleanup scenario 5[][]Passed
owned-portal-cleanup scenario 6[][]Passed
physical-container-membership scenario 1FalseFalsePassed
physical-container-membership scenario 2FalseFalsePassed
physical-container-membership scenario 3TrueTruePassed
physical-container-membership scenario 4TrueTruePassed
physical-container-membership scenario 5FalseFalsePassed
physical-container-membership scenario 6TrueTruePassed
event-path-deduplication scenario 1['p', 'c']['p', 'c']Passed
event-path-deduplication scenario 2[][]Passed
event-path-deduplication scenario 3['a']['a']Passed
event-path-deduplication scenario 4['q', 'b']['q', 'b']Passed
event-path-deduplication scenario 5['p']['p']Passed
event-path-deduplication scenario 6['a']['a']Passed
disposed-owner-no-delivery scenario 1TrueTruePassed
disposed-owner-no-delivery scenario 2FalseFalsePassed
disposed-owner-no-delivery scenario 3FalseFalsePassed
disposed-owner-no-delivery scenario 4TrueTruePassed
disposed-owner-no-delivery scenario 5TrueTruePassed
disposed-owner-no-delivery scenario 6TrueTruePassed
portal-host-root-distinction scenario 1['p']['p']Passed
portal-host-root-distinction scenario 2[][]Passed
portal-host-root-distinction scenario 3['p']['p']Passed
portal-host-root-distinction scenario 4['p', 'q']['q']Failed
portal-host-root-distinction scenario 5['p']['p']Passed
portal-host-root-distinction scenario 6[][]Passed
unrelated-roots-retention scenario 1['r2']['r2']Passed
unrelated-roots-retention scenario 2[][]Passed
unrelated-roots-retention scenario 3[][]Passed
unrelated-roots-retention scenario 4['r1']['r1']Passed
unrelated-roots-retention scenario 5[][]Passed
unrelated-roots-retention scenario 6[][]Passed
root-local-node-count scenario 122Passed
root-local-node-count scenario 200Passed
root-local-node-count scenario 311Passed
root-local-node-count scenario 411Passed
root-local-node-count scenario 511Passed
root-local-node-count scenario 611Passed
missing-host-no-implicit-root scenario 1r2r2Passed
missing-host-no-implicit-root scenario 2NoneNonePassed
missing-host-no-implicit-root scenario 3r1r1Passed
missing-host-no-implicit-root scenario 4r2r2Passed
missing-host-no-implicit-root scenario 5NoneNonePassed
missing-host-no-implicit-root scenario 6r1r1Passed

SHA-256 / 233eafd1c60a31275564b387fee1405d3187907ee97374ea157a133cac969c12

2 / The unsuccessful fix

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

N = 1
observations = []
def solve(operation, s):
    roots, owner, target, portals, event_path, disposed = s
    if operation == 'portal-logical-owner':
        return portals.get(event_path[0]) if event_path and event_path[0] in portals else next((r for r,nodes in roots.items() if event_path and event_path[0] in nodes),None)
    if operation == 'root-disposal-isolation':
        return {r:nodes for r,nodes in roots.items() if r not in disposed}
    if operation == 'owned-portal-cleanup':
        return [p for p,r in portals.items() if r in disposed]
    if operation == 'physical-container-membership':
        return target in roots.get(owner,[])
    if operation == 'event-path-deduplication':
        return list(dict.fromkeys(event_path))
    if operation == 'disposed-owner-no-delivery':
        return owner in roots and owner not in disposed
    if operation == 'portal-host-root-distinction':
        return roots.get(owner,[])
    if operation == 'unrelated-roots-retention':
        return [r for r in roots if r!=owner]
    if operation == 'root-local-node-count':
        return len(roots.get(owner,[]))
    if operation == 'missing-host-no-implicit-root':
        return next((r for r,nodes in roots.items() if target in nodes),None)
    raise ValueError('unknown modeled operation')
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
check('portal-logical-owner scenario 1', solve('portal-logical-owner', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), 'r1')
check('portal-logical-owner scenario 2', solve('portal-logical-owner', ({},'r1','a',{},[],[],)), None)
check('portal-logical-owner scenario 3', solve('portal-logical-owner', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), 'r1')
check('portal-logical-owner scenario 4', solve('portal-logical-owner', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), 'r2')
check('portal-logical-owner scenario 5', solve('portal-logical-owner', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), 'r1')
check('portal-logical-owner scenario 6', solve('portal-logical-owner', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), 'r1')
check('root-disposal-isolation scenario 1', solve('root-disposal-isolation', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), {'r1':['a','b'],'r2':['c']})
check('root-disposal-isolation scenario 2', solve('root-disposal-isolation', ({},'r1','a',{},[],[],)), {})
check('root-disposal-isolation scenario 3', solve('root-disposal-isolation', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), {})
check('root-disposal-isolation scenario 4', solve('root-disposal-isolation', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), {'r1':['a'],'r2':['b']})
check('root-disposal-isolation scenario 5', solve('root-disposal-isolation', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), {'r1':['a']})
check('root-disposal-isolation scenario 6', solve('root-disposal-isolation', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), {'r1':['a']*N})
check('owned-portal-cleanup scenario 1', solve('owned-portal-cleanup', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), [])
check('owned-portal-cleanup scenario 2', solve('owned-portal-cleanup', ({},'r1','a',{},[],[],)), [])
check('owned-portal-cleanup scenario 3', solve('owned-portal-cleanup', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), ['p'])
check('owned-portal-cleanup scenario 4', solve('owned-portal-cleanup', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), [])
check('owned-portal-cleanup scenario 5', solve('owned-portal-cleanup', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), [])
check('owned-portal-cleanup scenario 6', solve('owned-portal-cleanup', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), [])
check('physical-container-membership scenario 1', solve('physical-container-membership', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), False)
check('physical-container-membership scenario 2', solve('physical-container-membership', ({},'r1','a',{},[],[],)), False)
check('physical-container-membership scenario 3', solve('physical-container-membership', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), True)
check('physical-container-membership scenario 4', solve('physical-container-membership', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), True)
check('physical-container-membership scenario 5', solve('physical-container-membership', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), False)
check('physical-container-membership scenario 6', solve('physical-container-membership', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), True)
check('event-path-deduplication scenario 1', solve('event-path-deduplication', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), ['p','c'])
check('event-path-deduplication scenario 2', solve('event-path-deduplication', ({},'r1','a',{},[],[],)), [])
check('event-path-deduplication scenario 3', solve('event-path-deduplication', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), ['a'])
check('event-path-deduplication scenario 4', solve('event-path-deduplication', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), ['q','b'])
check('event-path-deduplication scenario 5', solve('event-path-deduplication', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), ['p'])
check('event-path-deduplication scenario 6', solve('event-path-deduplication', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), ['a'])
check('disposed-owner-no-delivery scenario 1', solve('disposed-owner-no-delivery', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), True)
check('disposed-owner-no-delivery scenario 2', solve('disposed-owner-no-delivery', ({},'r1','a',{},[],[],)), False)
check('disposed-owner-no-delivery scenario 3', solve('disposed-owner-no-delivery', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), False)
check('disposed-owner-no-delivery scenario 4', solve('disposed-owner-no-delivery', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), True)
check('disposed-owner-no-delivery scenario 5', solve('disposed-owner-no-delivery', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), True)
check('disposed-owner-no-delivery scenario 6', solve('disposed-owner-no-delivery', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), True)
check('portal-host-root-distinction scenario 1', solve('portal-host-root-distinction', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), ['p'])
check('portal-host-root-distinction scenario 2', solve('portal-host-root-distinction', ({},'r1','a',{},[],[],)), [])
check('portal-host-root-distinction scenario 3', solve('portal-host-root-distinction', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), ['p'])
check('portal-host-root-distinction scenario 4', solve('portal-host-root-distinction', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), ['q'])
check('portal-host-root-distinction scenario 5', solve('portal-host-root-distinction', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), ['p'])
check('portal-host-root-distinction scenario 6', solve('portal-host-root-distinction', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), [])
check('unrelated-roots-retention scenario 1', solve('unrelated-roots-retention', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), ['r2'])
check('unrelated-roots-retention scenario 2', solve('unrelated-roots-retention', ({},'r1','a',{},[],[],)), [])
check('unrelated-roots-retention scenario 3', solve('unrelated-roots-retention', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), [])
check('unrelated-roots-retention scenario 4', solve('unrelated-roots-retention', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), ['r1'])
check('unrelated-roots-retention scenario 5', solve('unrelated-roots-retention', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), [])
check('unrelated-roots-retention scenario 6', solve('unrelated-roots-retention', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), [])
check('root-local-node-count scenario 1', solve('root-local-node-count', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), 2)
check('root-local-node-count scenario 2', solve('root-local-node-count', ({},'r1','a',{},[],[],)), 0)
check('root-local-node-count scenario 3', solve('root-local-node-count', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), 1)
check('root-local-node-count scenario 4', solve('root-local-node-count', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), 1)
check('root-local-node-count scenario 5', solve('root-local-node-count', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), 1)
check('root-local-node-count scenario 6', solve('root-local-node-count', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), N)
check('missing-host-no-implicit-root scenario 1', solve('missing-host-no-implicit-root', ({'r1':['a','b'],'r2':['c']},'r1','c',{'p':'r1'},['p','c'],[],)), 'r2')
check('missing-host-no-implicit-root scenario 2', solve('missing-host-no-implicit-root', ({},'r1','a',{},[],[],)), None)
check('missing-host-no-implicit-root scenario 3', solve('missing-host-no-implicit-root', ({'r1':['a']},'r1','a',{'p':'r1'},['a'],['r1'],)), 'r1')
check('missing-host-no-implicit-root scenario 4', solve('missing-host-no-implicit-root', ({'r1':['a'],'r2':['b']},'r2','b',{'p':'r1','q':'r2'},['q','b'],[],)), 'r2')
check('missing-host-no-implicit-root scenario 5', solve('missing-host-no-implicit-root', ({'r1':['a']},'r1','missing',{'p':'r1'},['p'],[],)), None)
check('missing-host-no-implicit-root scenario 6', solve('missing-host-no-implicit-root', ({'r1':['a']*N},'r1','a',{},['a','a'],[],)), 'r1')
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
portal-logical-owner scenario 1r1r1Passed
portal-logical-owner scenario 2NoneNonePassed
portal-logical-owner scenario 3r1r1Passed
portal-logical-owner scenario 4r2r2Passed
portal-logical-owner scenario 5r1r1Passed
portal-logical-owner scenario 6r1r1Passed
root-disposal-isolation scenario 1{'r1': ['a', 'b'], 'r2': ['c']}{'r1': ['a', 'b'], 'r2': ['c']}Passed
root-disposal-isolation scenario 2{}{}Passed
root-disposal-isolation scenario 3{}{}Passed
root-disposal-isolation scenario 4{'r1': ['a'], 'r2': ['b']}{'r1': ['a'], 'r2': ['b']}Passed
root-disposal-isolation scenario 5{'r1': ['a']}{'r1': ['a']}Passed
root-disposal-isolation scenario 6{'r1': ['a']}{'r1': ['a']}Passed
owned-portal-cleanup scenario 1[][]Passed
owned-portal-cleanup scenario 2[][]Passed
owned-portal-cleanup scenario 3['p']['p']Passed
owned-portal-cleanup scenario 4[][]Passed
owned-portal-cleanup scenario 5[][]Passed
owned-portal-cleanup scenario 6[][]Passed
physical-container-membership scenario 1FalseFalsePassed
physical-container-membership scenario 2FalseFalsePassed
physical-container-membership scenario 3TrueTruePassed
physical-container-membership scenario 4TrueTruePassed
physical-container-membership scenario 5FalseFalsePassed
physical-container-membership scenario 6TrueTruePassed
event-path-deduplication scenario 1['p', 'c']['p', 'c']Passed
event-path-deduplication scenario 2[][]Passed
event-path-deduplication scenario 3['a']['a']Passed
event-path-deduplication scenario 4['q', 'b']['q', 'b']Passed
event-path-deduplication scenario 5['p']['p']Passed
event-path-deduplication scenario 6['a']['a']Passed
disposed-owner-no-delivery scenario 1TrueTruePassed
disposed-owner-no-delivery scenario 2FalseFalsePassed
disposed-owner-no-delivery scenario 3FalseFalsePassed
disposed-owner-no-delivery scenario 4TrueTruePassed
disposed-owner-no-delivery scenario 5TrueTruePassed
disposed-owner-no-delivery scenario 6TrueTruePassed
portal-host-root-distinction scenario 1['a', 'b']['p']Failed
portal-host-root-distinction scenario 2[][]Passed
portal-host-root-distinction scenario 3['a']['p']Failed
portal-host-root-distinction scenario 4['b']['q']Failed
portal-host-root-distinction scenario 5['a']['p']Failed
portal-host-root-distinction scenario 6['a'][]Failed
unrelated-roots-retention scenario 1['r2']['r2']Passed
unrelated-roots-retention scenario 2[][]Passed
unrelated-roots-retention scenario 3[][]Passed
unrelated-roots-retention scenario 4['r1']['r1']Passed
unrelated-roots-retention scenario 5[][]Passed
unrelated-roots-retention scenario 6[][]Passed
root-local-node-count scenario 122Passed
root-local-node-count scenario 200Passed
root-local-node-count scenario 311Passed
root-local-node-count scenario 411Passed
root-local-node-count scenario 511Passed
root-local-node-count scenario 611Passed
missing-host-no-implicit-root scenario 1r2r2Passed
missing-host-no-implicit-root scenario 2NoneNonePassed
missing-host-no-implicit-root scenario 3r1r1Passed
missing-host-no-implicit-root scenario 4r2r2Passed
missing-host-no-implicit-root scenario 5NoneNonePassed
missing-host-no-implicit-root scenario 6r1r1Passed

SHA-256 / 6c99e22c65716f15857b43cc42017de2a2f9dbd02681479c3de601c5b7fdc7d4

HELD IN THE MEMBER ARCHIVE

The verified repair and its recorded checks are member-only.

This mechanism has 60 recorded checks per implementation. The open-access tier publishes the failure and the unsuccessful fix; the repaired source that passes every check, and the observations that prove it, are available to members.

Every case sharing this mechanism uses the same contract and the same repair, so this one record is held back for all of them.

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Verification & scope

Only the explicitly specified operations and finite deterministic records are modeled; no browser or framework 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.

Observations recorded using Python 3.12.14 at 2026-09-29T14:40:59.674609+00:00.

Case digest / 116f3735aed3ad21c7d60e2cfd035ff8dec92f5a0ee12227e60b8390f12d01b4