FA-35016 / Notification interfaces / Open access
Notification target opening feedback: request-access from permission-needed · case 01
The request-access event leaves a notification in opened instead of access-pending.
ROOT CAUSE
Requesting access is confused with successful target opening.
VERIFIED REPAIR
Commit the permission-needed / request-access transition to access-pending; preserve the other explicitly stipulated transitions.
Unsuccessful approach: Resolving immediately before access acceptance repeats the denial.
Case contract
Notification target opening feedback is a bounded visual-notification workflow with mutable policy state {'target': 'document-7', 'resolved': None, 'visited': [], 'permission': False}. Its default transition relation is {('actionable', 'open-target'): 'resolving', ('resolving', 'target-found'): 'navigating', ('navigating', 'navigation-complete'): 'opened', ('resolving', 'target-deleted'): 'unavailable', ('resolving', 'access-required'): 'permission-needed', ('permission-needed', 'request-access'): 'access-pending', ('access-pending', 'access-granted'): 'resolving', ('navigating', 'navigation-failed'): 'navigation-error', ('navigation-error', 'retry-navigation'): 'navigating', ('resolving', 'cancel-open'): 'actionable'}; domain inputs can suppress or redirect transitions and update policy fields, as specified in solve. Different-generation events are inert. Batches apply in order. Optional observe returns the selected policy field alongside the phase.
Why this case matters
Visual notification lifecycle ordering can leave an inbox or toast showing the wrong actionable state even when transport succeeds.
1 / The failure
Exit 1"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(initial, events, generation, payload=None, observe=None):
table = {('actionable', 'open-target'): 'resolving', ('resolving', 'target-found'): 'navigating', ('navigating', 'navigation-complete'): 'opened', ('resolving', 'target-deleted'): 'unavailable', ('resolving', 'access-required'): 'permission-needed', ('permission-needed', 'request-access'): 'opened', ('access-pending', 'access-granted'): 'resolving', ('navigating', 'navigation-failed'): 'navigation-error', ('navigation-error', 'retry-navigation'): 'navigating', ('resolving', 'cancel-open'): 'actionable'}
data = json.loads(json.dumps({'target': 'document-7', 'resolved': None, 'visited': [], 'permission': False})) if payload is None else {**json.loads(json.dumps({'target': 'document-7', 'resolved': None, 'visited': [], 'permission': False})), **json.loads(json.dumps(payload))}
state = initial
for delivery in events:
event, event_generation = delivery[:2]
arg = delivery[2] if len(delivery) > 2 else {}
if event_generation == generation:
previous = state
if event in ('target-found','target-deleted','access-granted') and arg.get('target',data['target']) != data['target']: event = 'unknown-event'
if event == 'target-found': data['resolved'] = arg.get('route','/documents/7')
if event == 'access-granted': data['permission'] = True
state = table.get((state, event), state)
if state == 'opened' and data['resolved'] is not None: data['visited'].append(data['resolved'])
if state == 'unavailable': data['resolved'] = None
return {'phase': state, 'value': data[observe]} if observe else state
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
check('actionable / open-target', solve('actionable', [('open-target', N)], N), 'resolving')
check('resolving / target-found', solve('resolving', [('target-found', N)], N), 'navigating')
check('navigating / navigation-complete', solve('navigating', [('navigation-complete', N)], N), 'opened')
check('resolving / target-deleted', solve('resolving', [('target-deleted', N)], N), 'unavailable')
check('resolving / access-required', solve('resolving', [('access-required', N)], N), 'permission-needed')
check('permission-needed / request-access', solve('permission-needed', [('request-access', N)], N), 'access-pending')
check('access-pending / access-granted', solve('access-pending', [('access-granted', N)], N), 'resolving')
check('navigating / navigation-failed', solve('navigating', [('navigation-failed', N)], N), 'navigation-error')
check('navigation-error / retry-navigation', solve('navigation-error', [('retry-navigation', N)], N), 'navigating')
check('resolving / cancel-open', solve('resolving', [('cancel-open', N)], N), 'actionable')
check('older notification incarnation', solve('actionable', [('open-target', N - 1)], N), 'actionable')
check('future notification incarnation', solve('actionable', [('open-target', N + 1)], N), 'actionable')
check('unknown event is inert', solve('actionable', [('unknown-event', N)], N), 'actionable')
check('empty delivery batch', solve('actionable', [], N), 'actionable')
check('N stale deliveries before current delivery', solve('actionable', [('open-target', N - 1)] * N + [('open-target', N)], N), 'resolving')
check('trace open-target then target-found', solve('actionable', [('open-target', N), ('target-found', N)], N), 'navigating')
check('trace open-target then target-deleted', solve('actionable', [('open-target', N), ('target-deleted', N)], N), 'unavailable')
check('trace open-target then access-required', solve('actionable', [('open-target', N), ('access-required', N)], N), 'permission-needed')
check('trace open-target then cancel-open', solve('actionable', [('open-target', N), ('cancel-open', N)], N), 'actionable')
check('trace target-found then navigation-complete', solve('resolving', [('target-found', N), ('navigation-complete', N)], N), 'opened')
check('trace target-found then navigation-failed', solve('resolving', [('target-found', N), ('navigation-failed', N)], N), 'navigation-error')
check('trace access-required then request-access', solve('resolving', [('access-required', N), ('request-access', N)], N), 'access-pending')
check('trace request-access then access-granted', solve('permission-needed', [('request-access', N), ('access-granted', N)], N), 'resolving')
check('trace access-granted then target-found', solve('access-pending', [('access-granted', N), ('target-found', N)], N), 'navigating')
check('trace access-granted then target-deleted', solve('access-pending', [('access-granted', N), ('target-deleted', N)], N), 'unavailable')
check('trace access-granted then access-required', solve('access-pending', [('access-granted', N), ('access-required', N)], N), 'permission-needed')
check('trace access-granted then cancel-open', solve('access-pending', [('access-granted', N), ('cancel-open', N)], N), 'actionable')
check('trace navigation-failed then retry-navigation', solve('navigating', [('navigation-failed', N), ('retry-navigation', N)], N), 'navigating')
check('trace retry-navigation then navigation-complete', solve('navigation-error', [('retry-navigation', N), ('navigation-complete', N)], N), 'opened')
check('trace retry-navigation then navigation-failed', solve('navigation-error', [('retry-navigation', N), ('navigation-failed', N)], N), 'navigation-error')
check('trace cancel-open then open-target', solve('resolving', [('cancel-open', N), ('open-target', N)], N), 'resolving')
check('domain state regression 1: resolved', solve('resolving', [('target-found', N, {'target': 'document-6'})], N, {}, 'resolved'), {'phase': 'resolving', 'value': None})
check('domain state regression 2: resolved', solve('resolving', [('target-found', N, {'route': '/documents/renamed'})], N, {}, 'resolved'), {'phase': 'navigating', 'value': '/documents/renamed'})
check('domain state regression 3: visited', solve('navigating', [('navigation-complete', N, {})], N, {'resolved': '/documents/7'}, 'visited'), {'phase': 'opened', 'value': ['/documents/7']})
check('domain state regression 4: permission', solve('access-pending', [('access-granted', N, {})], N, {}, 'permission'), {'phase': 'resolving', 'value': True})
check('domain state regression 5: resolved', solve('resolving', [('target-deleted', N, {})], N, {'resolved': '/old'}, 'resolved'), {'phase': 'unavailable', 'value': None})
check('domain state regression 6: resolved', solve('navigation-error', [('retry-navigation', N, {})], N, {'resolved': '/documents/7'}, 'resolved'), {'phase': 'navigating', 'value': '/documents/7'})
check('domain state regression 7: visited', solve('actionable', [('open-target', N, {}), ('target-found', N, {'route': '/documents/new'}), ('navigation-failed', N, {}), ('retry-navigation', N, {}), ('navigation-complete', N, {})], N, {}, 'visited'), {'phase': 'opened', 'value': ['/documents/new']})
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 fixture | Actual | Expected | Outcome |
|---|---|---|---|
| actionable / open-target | resolving | resolving | Passed |
| resolving / target-found | navigating | navigating | Passed |
| navigating / navigation-complete | opened | opened | Passed |
| resolving / target-deleted | unavailable | unavailable | Passed |
| resolving / access-required | permission-needed | permission-needed | Passed |
| permission-needed / request-access | opened | access-pending | Failed |
| access-pending / access-granted | resolving | resolving | Passed |
| navigating / navigation-failed | navigation-error | navigation-error | Passed |
| navigation-error / retry-navigation | navigating | navigating | Passed |
| resolving / cancel-open | actionable | actionable | Passed |
| older notification incarnation | actionable | actionable | Passed |
| future notification incarnation | actionable | actionable | Passed |
| unknown event is inert | actionable | actionable | Passed |
| empty delivery batch | actionable | actionable | Passed |
| N stale deliveries before current delivery | resolving | resolving | Passed |
| trace open-target then target-found | navigating | navigating | Passed |
| trace open-target then target-deleted | unavailable | unavailable | Passed |
| trace open-target then access-required | permission-needed | permission-needed | Passed |
| trace open-target then cancel-open | actionable | actionable | Passed |
| trace target-found then navigation-complete | opened | opened | Passed |
| trace target-found then navigation-failed | navigation-error | navigation-error | Passed |
| trace access-required then request-access | opened | access-pending | Failed |
| trace request-access then access-granted | opened | resolving | Failed |
| trace access-granted then target-found | navigating | navigating | Passed |
| trace access-granted then target-deleted | unavailable | unavailable | Passed |
| trace access-granted then access-required | permission-needed | permission-needed | Passed |
| trace access-granted then cancel-open | actionable | actionable | Passed |
| trace navigation-failed then retry-navigation | navigating | navigating | Passed |
| trace retry-navigation then navigation-complete | opened | opened | Passed |
| trace retry-navigation then navigation-failed | navigation-error | navigation-error | Passed |
| trace cancel-open then open-target | resolving | resolving | Passed |
| domain state regression 1: resolved | {'phase': 'resolving', 'value': None} | {'phase': 'resolving', 'value': None} | Passed |
| domain state regression 2: resolved | {'phase': 'navigating', 'value': '/documents/renamed'} | {'phase': 'navigating', 'value': '/documents/renamed'} | Passed |
| domain state regression 3: visited | {'phase': 'opened', 'value': ['/documents/7']} | {'phase': 'opened', 'value': ['/documents/7']} | Passed |
| domain state regression 4: permission | {'phase': 'resolving', 'value': True} | {'phase': 'resolving', 'value': True} | Passed |
| domain state regression 5: resolved | {'phase': 'unavailable', 'value': None} | {'phase': 'unavailable', 'value': None} | Passed |
| domain state regression 6: resolved | {'phase': 'navigating', 'value': '/documents/7'} | {'phase': 'navigating', 'value': '/documents/7'} | Passed |
| domain state regression 7: visited | {'phase': 'opened', 'value': ['/documents/new']} | {'phase': 'opened', 'value': ['/documents/new']} | Passed |
SHA-256 / 3fd2f99783c07991bfd9a1e01354fbe56ccb05b33b5fe0656f304e3f2120e733
2 / The unsuccessful fix
Exit 1"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(initial, events, generation, payload=None, observe=None):
table = {('actionable', 'open-target'): 'resolving', ('resolving', 'target-found'): 'navigating', ('navigating', 'navigation-complete'): 'opened', ('resolving', 'target-deleted'): 'unavailable', ('resolving', 'access-required'): 'permission-needed', ('permission-needed', 'request-access'): 'resolving', ('access-pending', 'access-granted'): 'resolving', ('navigating', 'navigation-failed'): 'navigation-error', ('navigation-error', 'retry-navigation'): 'navigating', ('resolving', 'cancel-open'): 'actionable'}
data = json.loads(json.dumps({'target': 'document-7', 'resolved': None, 'visited': [], 'permission': False})) if payload is None else {**json.loads(json.dumps({'target': 'document-7', 'resolved': None, 'visited': [], 'permission': False})), **json.loads(json.dumps(payload))}
state = initial
for delivery in events:
event, event_generation = delivery[:2]
arg = delivery[2] if len(delivery) > 2 else {}
if event_generation == generation:
previous = state
if event in ('target-found','target-deleted','access-granted') and arg.get('target',data['target']) != data['target']: event = 'unknown-event'
if event == 'target-found': data['resolved'] = arg.get('route','/documents/7')
if event == 'access-granted': data['permission'] = True
state = table.get((state, event), state)
if state == 'opened' and data['resolved'] is not None: data['visited'].append(data['resolved'])
if state == 'unavailable': data['resolved'] = None
return {'phase': state, 'value': data[observe]} if observe else state
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
check('actionable / open-target', solve('actionable', [('open-target', N)], N), 'resolving')
check('resolving / target-found', solve('resolving', [('target-found', N)], N), 'navigating')
check('navigating / navigation-complete', solve('navigating', [('navigation-complete', N)], N), 'opened')
check('resolving / target-deleted', solve('resolving', [('target-deleted', N)], N), 'unavailable')
check('resolving / access-required', solve('resolving', [('access-required', N)], N), 'permission-needed')
check('permission-needed / request-access', solve('permission-needed', [('request-access', N)], N), 'access-pending')
check('access-pending / access-granted', solve('access-pending', [('access-granted', N)], N), 'resolving')
check('navigating / navigation-failed', solve('navigating', [('navigation-failed', N)], N), 'navigation-error')
check('navigation-error / retry-navigation', solve('navigation-error', [('retry-navigation', N)], N), 'navigating')
check('resolving / cancel-open', solve('resolving', [('cancel-open', N)], N), 'actionable')
check('older notification incarnation', solve('actionable', [('open-target', N - 1)], N), 'actionable')
check('future notification incarnation', solve('actionable', [('open-target', N + 1)], N), 'actionable')
check('unknown event is inert', solve('actionable', [('unknown-event', N)], N), 'actionable')
check('empty delivery batch', solve('actionable', [], N), 'actionable')
check('N stale deliveries before current delivery', solve('actionable', [('open-target', N - 1)] * N + [('open-target', N)], N), 'resolving')
check('trace open-target then target-found', solve('actionable', [('open-target', N), ('target-found', N)], N), 'navigating')
check('trace open-target then target-deleted', solve('actionable', [('open-target', N), ('target-deleted', N)], N), 'unavailable')
check('trace open-target then access-required', solve('actionable', [('open-target', N), ('access-required', N)], N), 'permission-needed')
check('trace open-target then cancel-open', solve('actionable', [('open-target', N), ('cancel-open', N)], N), 'actionable')
check('trace target-found then navigation-complete', solve('resolving', [('target-found', N), ('navigation-complete', N)], N), 'opened')
check('trace target-found then navigation-failed', solve('resolving', [('target-found', N), ('navigation-failed', N)], N), 'navigation-error')
check('trace access-required then request-access', solve('resolving', [('access-required', N), ('request-access', N)], N), 'access-pending')
check('trace request-access then access-granted', solve('permission-needed', [('request-access', N), ('access-granted', N)], N), 'resolving')
check('trace access-granted then target-found', solve('access-pending', [('access-granted', N), ('target-found', N)], N), 'navigating')
check('trace access-granted then target-deleted', solve('access-pending', [('access-granted', N), ('target-deleted', N)], N), 'unavailable')
check('trace access-granted then access-required', solve('access-pending', [('access-granted', N), ('access-required', N)], N), 'permission-needed')
check('trace access-granted then cancel-open', solve('access-pending', [('access-granted', N), ('cancel-open', N)], N), 'actionable')
check('trace navigation-failed then retry-navigation', solve('navigating', [('navigation-failed', N), ('retry-navigation', N)], N), 'navigating')
check('trace retry-navigation then navigation-complete', solve('navigation-error', [('retry-navigation', N), ('navigation-complete', N)], N), 'opened')
check('trace retry-navigation then navigation-failed', solve('navigation-error', [('retry-navigation', N), ('navigation-failed', N)], N), 'navigation-error')
check('trace cancel-open then open-target', solve('resolving', [('cancel-open', N), ('open-target', N)], N), 'resolving')
check('domain state regression 1: resolved', solve('resolving', [('target-found', N, {'target': 'document-6'})], N, {}, 'resolved'), {'phase': 'resolving', 'value': None})
check('domain state regression 2: resolved', solve('resolving', [('target-found', N, {'route': '/documents/renamed'})], N, {}, 'resolved'), {'phase': 'navigating', 'value': '/documents/renamed'})
check('domain state regression 3: visited', solve('navigating', [('navigation-complete', N, {})], N, {'resolved': '/documents/7'}, 'visited'), {'phase': 'opened', 'value': ['/documents/7']})
check('domain state regression 4: permission', solve('access-pending', [('access-granted', N, {})], N, {}, 'permission'), {'phase': 'resolving', 'value': True})
check('domain state regression 5: resolved', solve('resolving', [('target-deleted', N, {})], N, {'resolved': '/old'}, 'resolved'), {'phase': 'unavailable', 'value': None})
check('domain state regression 6: resolved', solve('navigation-error', [('retry-navigation', N, {})], N, {'resolved': '/documents/7'}, 'resolved'), {'phase': 'navigating', 'value': '/documents/7'})
check('domain state regression 7: visited', solve('actionable', [('open-target', N, {}), ('target-found', N, {'route': '/documents/new'}), ('navigation-failed', N, {}), ('retry-navigation', N, {}), ('navigation-complete', N, {})], N, {}, 'visited'), {'phase': 'opened', 'value': ['/documents/new']})
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 fixture | Actual | Expected | Outcome |
|---|---|---|---|
| actionable / open-target | resolving | resolving | Passed |
| resolving / target-found | navigating | navigating | Passed |
| navigating / navigation-complete | opened | opened | Passed |
| resolving / target-deleted | unavailable | unavailable | Passed |
| resolving / access-required | permission-needed | permission-needed | Passed |
| permission-needed / request-access | resolving | access-pending | Failed |
| access-pending / access-granted | resolving | resolving | Passed |
| navigating / navigation-failed | navigation-error | navigation-error | Passed |
| navigation-error / retry-navigation | navigating | navigating | Passed |
| resolving / cancel-open | actionable | actionable | Passed |
| older notification incarnation | actionable | actionable | Passed |
| future notification incarnation | actionable | actionable | Passed |
| unknown event is inert | actionable | actionable | Passed |
| empty delivery batch | actionable | actionable | Passed |
| N stale deliveries before current delivery | resolving | resolving | Passed |
| trace open-target then target-found | navigating | navigating | Passed |
| trace open-target then target-deleted | unavailable | unavailable | Passed |
| trace open-target then access-required | permission-needed | permission-needed | Passed |
| trace open-target then cancel-open | actionable | actionable | Passed |
| trace target-found then navigation-complete | opened | opened | Passed |
| trace target-found then navigation-failed | navigation-error | navigation-error | Passed |
| trace access-required then request-access | resolving | access-pending | Failed |
| trace request-access then access-granted | resolving | resolving | Passed |
| trace access-granted then target-found | navigating | navigating | Passed |
| trace access-granted then target-deleted | unavailable | unavailable | Passed |
| trace access-granted then access-required | permission-needed | permission-needed | Passed |
| trace access-granted then cancel-open | actionable | actionable | Passed |
| trace navigation-failed then retry-navigation | navigating | navigating | Passed |
| trace retry-navigation then navigation-complete | opened | opened | Passed |
| trace retry-navigation then navigation-failed | navigation-error | navigation-error | Passed |
| trace cancel-open then open-target | resolving | resolving | Passed |
| domain state regression 1: resolved | {'phase': 'resolving', 'value': None} | {'phase': 'resolving', 'value': None} | Passed |
| domain state regression 2: resolved | {'phase': 'navigating', 'value': '/documents/renamed'} | {'phase': 'navigating', 'value': '/documents/renamed'} | Passed |
| domain state regression 3: visited | {'phase': 'opened', 'value': ['/documents/7']} | {'phase': 'opened', 'value': ['/documents/7']} | Passed |
| domain state regression 4: permission | {'phase': 'resolving', 'value': True} | {'phase': 'resolving', 'value': True} | Passed |
| domain state regression 5: resolved | {'phase': 'unavailable', 'value': None} | {'phase': 'unavailable', 'value': None} | Passed |
| domain state regression 6: resolved | {'phase': 'navigating', 'value': '/documents/7'} | {'phase': 'navigating', 'value': '/documents/7'} | Passed |
| domain state regression 7: visited | {'phase': 'opened', 'value': ['/documents/new']} | {'phase': 'opened', 'value': ['/documents/new']} | Passed |
SHA-256 / a99c475f0158058a8394c87237b3a3c161768f41786670d1d212743e3a03840a
3 / The verified repair
Exit 0"""Failure Map reference implementation. Python standard library only."""
import json
N = 1
observations = []
def solve(initial, events, generation, payload=None, observe=None):
table = {('actionable', 'open-target'): 'resolving', ('resolving', 'target-found'): 'navigating', ('navigating', 'navigation-complete'): 'opened', ('resolving', 'target-deleted'): 'unavailable', ('resolving', 'access-required'): 'permission-needed', ('permission-needed', 'request-access'): 'access-pending', ('access-pending', 'access-granted'): 'resolving', ('navigating', 'navigation-failed'): 'navigation-error', ('navigation-error', 'retry-navigation'): 'navigating', ('resolving', 'cancel-open'): 'actionable'}
data = json.loads(json.dumps({'target': 'document-7', 'resolved': None, 'visited': [], 'permission': False})) if payload is None else {**json.loads(json.dumps({'target': 'document-7', 'resolved': None, 'visited': [], 'permission': False})), **json.loads(json.dumps(payload))}
state = initial
for delivery in events:
event, event_generation = delivery[:2]
arg = delivery[2] if len(delivery) > 2 else {}
if event_generation == generation:
previous = state
if event in ('target-found','target-deleted','access-granted') and arg.get('target',data['target']) != data['target']: event = 'unknown-event'
if event == 'target-found': data['resolved'] = arg.get('route','/documents/7')
if event == 'access-granted': data['permission'] = True
state = table.get((state, event), state)
if state == 'opened' and data['resolved'] is not None: data['visited'].append(data['resolved'])
if state == 'unavailable': data['resolved'] = None
return {'phase': state, 'value': data[observe]} if observe else state
def check(label, actual, expected):
observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
check('actionable / open-target', solve('actionable', [('open-target', N)], N), 'resolving')
check('resolving / target-found', solve('resolving', [('target-found', N)], N), 'navigating')
check('navigating / navigation-complete', solve('navigating', [('navigation-complete', N)], N), 'opened')
check('resolving / target-deleted', solve('resolving', [('target-deleted', N)], N), 'unavailable')
check('resolving / access-required', solve('resolving', [('access-required', N)], N), 'permission-needed')
check('permission-needed / request-access', solve('permission-needed', [('request-access', N)], N), 'access-pending')
check('access-pending / access-granted', solve('access-pending', [('access-granted', N)], N), 'resolving')
check('navigating / navigation-failed', solve('navigating', [('navigation-failed', N)], N), 'navigation-error')
check('navigation-error / retry-navigation', solve('navigation-error', [('retry-navigation', N)], N), 'navigating')
check('resolving / cancel-open', solve('resolving', [('cancel-open', N)], N), 'actionable')
check('older notification incarnation', solve('actionable', [('open-target', N - 1)], N), 'actionable')
check('future notification incarnation', solve('actionable', [('open-target', N + 1)], N), 'actionable')
check('unknown event is inert', solve('actionable', [('unknown-event', N)], N), 'actionable')
check('empty delivery batch', solve('actionable', [], N), 'actionable')
check('N stale deliveries before current delivery', solve('actionable', [('open-target', N - 1)] * N + [('open-target', N)], N), 'resolving')
check('trace open-target then target-found', solve('actionable', [('open-target', N), ('target-found', N)], N), 'navigating')
check('trace open-target then target-deleted', solve('actionable', [('open-target', N), ('target-deleted', N)], N), 'unavailable')
check('trace open-target then access-required', solve('actionable', [('open-target', N), ('access-required', N)], N), 'permission-needed')
check('trace open-target then cancel-open', solve('actionable', [('open-target', N), ('cancel-open', N)], N), 'actionable')
check('trace target-found then navigation-complete', solve('resolving', [('target-found', N), ('navigation-complete', N)], N), 'opened')
check('trace target-found then navigation-failed', solve('resolving', [('target-found', N), ('navigation-failed', N)], N), 'navigation-error')
check('trace access-required then request-access', solve('resolving', [('access-required', N), ('request-access', N)], N), 'access-pending')
check('trace request-access then access-granted', solve('permission-needed', [('request-access', N), ('access-granted', N)], N), 'resolving')
check('trace access-granted then target-found', solve('access-pending', [('access-granted', N), ('target-found', N)], N), 'navigating')
check('trace access-granted then target-deleted', solve('access-pending', [('access-granted', N), ('target-deleted', N)], N), 'unavailable')
check('trace access-granted then access-required', solve('access-pending', [('access-granted', N), ('access-required', N)], N), 'permission-needed')
check('trace access-granted then cancel-open', solve('access-pending', [('access-granted', N), ('cancel-open', N)], N), 'actionable')
check('trace navigation-failed then retry-navigation', solve('navigating', [('navigation-failed', N), ('retry-navigation', N)], N), 'navigating')
check('trace retry-navigation then navigation-complete', solve('navigation-error', [('retry-navigation', N), ('navigation-complete', N)], N), 'opened')
check('trace retry-navigation then navigation-failed', solve('navigation-error', [('retry-navigation', N), ('navigation-failed', N)], N), 'navigation-error')
check('trace cancel-open then open-target', solve('resolving', [('cancel-open', N), ('open-target', N)], N), 'resolving')
check('domain state regression 1: resolved', solve('resolving', [('target-found', N, {'target': 'document-6'})], N, {}, 'resolved'), {'phase': 'resolving', 'value': None})
check('domain state regression 2: resolved', solve('resolving', [('target-found', N, {'route': '/documents/renamed'})], N, {}, 'resolved'), {'phase': 'navigating', 'value': '/documents/renamed'})
check('domain state regression 3: visited', solve('navigating', [('navigation-complete', N, {})], N, {'resolved': '/documents/7'}, 'visited'), {'phase': 'opened', 'value': ['/documents/7']})
check('domain state regression 4: permission', solve('access-pending', [('access-granted', N, {})], N, {}, 'permission'), {'phase': 'resolving', 'value': True})
check('domain state regression 5: resolved', solve('resolving', [('target-deleted', N, {})], N, {'resolved': '/old'}, 'resolved'), {'phase': 'unavailable', 'value': None})
check('domain state regression 6: resolved', solve('navigation-error', [('retry-navigation', N, {})], N, {'resolved': '/documents/7'}, 'resolved'), {'phase': 'navigating', 'value': '/documents/7'})
check('domain state regression 7: visited', solve('actionable', [('open-target', N, {}), ('target-found', N, {'route': '/documents/new'}), ('navigation-failed', N, {}), ('retry-navigation', N, {}), ('navigation-complete', N, {})], N, {}, 'visited'), {'phase': 'opened', 'value': ['/documents/new']})
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 fixture | Actual | Expected | Outcome |
|---|---|---|---|
| actionable / open-target | resolving | resolving | Passed |
| resolving / target-found | navigating | navigating | Passed |
| navigating / navigation-complete | opened | opened | Passed |
| resolving / target-deleted | unavailable | unavailable | Passed |
| resolving / access-required | permission-needed | permission-needed | Passed |
| permission-needed / request-access | access-pending | access-pending | Passed |
| access-pending / access-granted | resolving | resolving | Passed |
| navigating / navigation-failed | navigation-error | navigation-error | Passed |
| navigation-error / retry-navigation | navigating | navigating | Passed |
| resolving / cancel-open | actionable | actionable | Passed |
| older notification incarnation | actionable | actionable | Passed |
| future notification incarnation | actionable | actionable | Passed |
| unknown event is inert | actionable | actionable | Passed |
| empty delivery batch | actionable | actionable | Passed |
| N stale deliveries before current delivery | resolving | resolving | Passed |
| trace open-target then target-found | navigating | navigating | Passed |
| trace open-target then target-deleted | unavailable | unavailable | Passed |
| trace open-target then access-required | permission-needed | permission-needed | Passed |
| trace open-target then cancel-open | actionable | actionable | Passed |
| trace target-found then navigation-complete | opened | opened | Passed |
| trace target-found then navigation-failed | navigation-error | navigation-error | Passed |
| trace access-required then request-access | access-pending | access-pending | Passed |
| trace request-access then access-granted | resolving | resolving | Passed |
| trace access-granted then target-found | navigating | navigating | Passed |
| trace access-granted then target-deleted | unavailable | unavailable | Passed |
| trace access-granted then access-required | permission-needed | permission-needed | Passed |
| trace access-granted then cancel-open | actionable | actionable | Passed |
| trace navigation-failed then retry-navigation | navigating | navigating | Passed |
| trace retry-navigation then navigation-complete | opened | opened | Passed |
| trace retry-navigation then navigation-failed | navigation-error | navigation-error | Passed |
| trace cancel-open then open-target | resolving | resolving | Passed |
| domain state regression 1: resolved | {'phase': 'resolving', 'value': None} | {'phase': 'resolving', 'value': None} | Passed |
| domain state regression 2: resolved | {'phase': 'navigating', 'value': '/documents/renamed'} | {'phase': 'navigating', 'value': '/documents/renamed'} | Passed |
| domain state regression 3: visited | {'phase': 'opened', 'value': ['/documents/7']} | {'phase': 'opened', 'value': ['/documents/7']} | Passed |
| domain state regression 4: permission | {'phase': 'resolving', 'value': True} | {'phase': 'resolving', 'value': True} | Passed |
| domain state regression 5: resolved | {'phase': 'unavailable', 'value': None} | {'phase': 'unavailable', 'value': None} | Passed |
| domain state regression 6: resolved | {'phase': 'navigating', 'value': '/documents/7'} | {'phase': 'navigating', 'value': '/documents/7'} | Passed |
| domain state regression 7: visited | {'phase': 'opened', 'value': ['/documents/new']} | {'phase': 'opened', 'value': ['/documents/new']} | Passed |
SHA-256 / f19f04c43d045a01a71c37bc2717fad4edd3796eb9168aa0fb993bbf44a8d555
Verification & scope
Stipulated single-notification state and policy model only. Event delivery and acknowledgements are explicit test inputs. No DOM, accessibility announcements, live timers, networking, actual rendering, or production-platform conformance is simulated. 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 2026-09-29T14:42:37.503251+00:00.
Case digest / 856f5da87d9a75a32dc03dc193ef7f6e1255c6a9a41b7df9eabf7d0851d5c3ce