FA-35241 / Notification interfaces / Open access
Notification destructive-action confirmation: destructive-click from offered · case 01
The destructive-click event leaves a notification in executing instead of confirming.
ROOT CAUSE
Clicking an actionable notification bypasses confirmation.
VERIFIED REPAIR
Commit the offered / destructive-click transition to confirming; preserve the other explicitly stipulated transitions.
Unsuccessful approach: Declaring success without even submitting the command compounds the bypass.
Case contract
Notification destructive-action confirmation is a bounded visual-notification workflow with mutable policy state {'revision': 2, 'consented': None, 'submitted': [], 'withdrawn': False}. Its default transition relation is {('offered', 'destructive-click'): 'confirming', ('confirming', 'confirm-accept'): 'executing', ('confirming', 'confirm-cancel'): 'offered', ('executing', 'command-success'): 'succeeded', ('executing', 'command-failure'): 'failed', ('failed', 'retry-click'): 'confirming-retry', ('confirming-retry', 'retry-confirm-accept'): 'executing', ('confirming', 'notification-withdrawn'): 'confirmation-invalidated', ('confirmation-invalidated', 'late-confirm-accept'): 'withdrawn', ('executing', 'notification-withdrawn'): 'executing-withdrawn'}; domain inputs can suppress or redirect transitions and update policy fields, as specified in solve.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 = {('offered', 'destructive-click'): 'executing', ('confirming', 'confirm-accept'): 'executing', ('confirming', 'confirm-cancel'): 'offered', ('executing', 'command-success'): 'succeeded', ('executing', 'command-failure'): 'failed', ('failed', 'retry-click'): 'confirming-retry', ('confirming-retry', 'retry-confirm-accept'): 'executing', ('confirming', 'notification-withdrawn'): 'confirmation-invalidated', ('confirmation-invalidated', 'late-confirm-accept'): 'withdrawn', ('executing', 'notification-withdrawn'): 'executing-withdrawn'}
data = json.loads(json.dumps({'revision': 2, 'consented': None, 'submitted': [], 'withdrawn': False})) if payload is None else {**json.loads(json.dumps({'revision': 2, 'consented': None, 'submitted': [], 'withdrawn': 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 ('confirm-accept','retry-confirm-accept'):
if data['withdrawn'] or arg.get('revision',data['revision']) != data['revision']: event = 'confirm-cancel'
else: data['consented'] = data['revision']
if event == 'notification-withdrawn': data['withdrawn'] = True
state = table.get((state, event), state)
if state == 'executing' and previous != 'executing': data['submitted'].append(data['revision'])
if state == 'offered': data['consented'] = 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('offered / destructive-click', solve('offered', [('destructive-click', N)], N), 'confirming')
check('confirming / confirm-accept', solve('confirming', [('confirm-accept', N)], N), 'executing')
check('confirming / confirm-cancel', solve('confirming', [('confirm-cancel', N)], N), 'offered')
check('executing / command-success', solve('executing', [('command-success', N)], N), 'succeeded')
check('executing / command-failure', solve('executing', [('command-failure', N)], N), 'failed')
check('failed / retry-click', solve('failed', [('retry-click', N)], N), 'confirming-retry')
check('confirming-retry / retry-confirm-accept', solve('confirming-retry', [('retry-confirm-accept', N)], N), 'executing')
check('confirming / notification-withdrawn', solve('confirming', [('notification-withdrawn', N)], N), 'confirmation-invalidated')
check('confirmation-invalidated / late-confirm-accept', solve('confirmation-invalidated', [('late-confirm-accept', N)], N), 'withdrawn')
check('executing / notification-withdrawn', solve('executing', [('notification-withdrawn', N)], N), 'executing-withdrawn')
check('older notification incarnation', solve('offered', [('destructive-click', N - 1)], N), 'offered')
check('future notification incarnation', solve('offered', [('destructive-click', N + 1)], N), 'offered')
check('unknown event is inert', solve('offered', [('unknown-event', N)], N), 'offered')
check('empty delivery batch', solve('offered', [], N), 'offered')
check('N stale deliveries before current delivery', solve('offered', [('destructive-click', N - 1)] * N + [('destructive-click', N)], N), 'confirming')
check('trace destructive-click then confirm-accept', solve('offered', [('destructive-click', N), ('confirm-accept', N)], N), 'executing')
check('trace destructive-click then confirm-cancel', solve('offered', [('destructive-click', N), ('confirm-cancel', N)], N), 'offered')
check('trace destructive-click then notification-withdrawn', solve('offered', [('destructive-click', N), ('notification-withdrawn', N)], N), 'confirmation-invalidated')
check('trace confirm-accept then command-success', solve('confirming', [('confirm-accept', N), ('command-success', N)], N), 'succeeded')
check('trace confirm-accept then command-failure', solve('confirming', [('confirm-accept', N), ('command-failure', N)], N), 'failed')
check('trace confirm-accept then notification-withdrawn', solve('confirming', [('confirm-accept', N), ('notification-withdrawn', N)], N), 'executing-withdrawn')
check('trace confirm-cancel then destructive-click', solve('confirming', [('confirm-cancel', N), ('destructive-click', N)], N), 'confirming')
check('trace command-failure then retry-click', solve('executing', [('command-failure', N), ('retry-click', N)], N), 'confirming-retry')
check('trace retry-click then retry-confirm-accept', solve('failed', [('retry-click', N), ('retry-confirm-accept', N)], N), 'executing')
check('trace retry-confirm-accept then command-success', solve('confirming-retry', [('retry-confirm-accept', N), ('command-success', N)], N), 'succeeded')
check('trace retry-confirm-accept then command-failure', solve('confirming-retry', [('retry-confirm-accept', N), ('command-failure', N)], N), 'failed')
check('trace retry-confirm-accept then notification-withdrawn', solve('confirming-retry', [('retry-confirm-accept', N), ('notification-withdrawn', N)], N), 'executing-withdrawn')
check('trace notification-withdrawn then late-confirm-accept', solve('confirming', [('notification-withdrawn', N), ('late-confirm-accept', N)], N), 'withdrawn')
check('domain state regression 1: submitted', solve('confirming', [('confirm-accept', N, {'revision': 1})], N, {}, 'submitted'), {'phase': 'offered', 'value': []})
check('domain state regression 2: submitted', solve('confirming', [('confirm-accept', N, {'revision': 2})], N, {}, 'submitted'), {'phase': 'executing', 'value': [2]})
check('domain state regression 3: submitted', solve('confirming', [('confirm-accept', N, {})], N, {'withdrawn': True}, 'submitted'), {'phase': 'offered', 'value': []})
check('domain state regression 4: consented', solve('confirming', [('confirm-cancel', N, {})], N, {'consented': 2}, 'consented'), {'phase': 'offered', 'value': None})
check('domain state regression 5: submitted', solve('executing', [('notification-withdrawn', N, {})], N, {'submitted': [2]}, 'submitted'), {'phase': 'executing-withdrawn', 'value': [2]})
check('domain state regression 6: submitted', solve('confirmation-invalidated', [('late-confirm-accept', N, {})], N, {'withdrawn': True}, 'submitted'), {'phase': 'withdrawn', 'value': []})
check('domain state regression 7: submitted', solve('offered', [('destructive-click', N, {}), ('notification-withdrawn', N, {}), ('late-confirm-accept', N, {})], N, {}, 'submitted'), {'phase': 'withdrawn', 'value': []})
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 |
|---|---|---|---|
| offered / destructive-click | executing | confirming | Failed |
| confirming / confirm-accept | executing | executing | Passed |
| confirming / confirm-cancel | offered | offered | Passed |
| executing / command-success | succeeded | succeeded | Passed |
| executing / command-failure | failed | failed | Passed |
| failed / retry-click | confirming-retry | confirming-retry | Passed |
| confirming-retry / retry-confirm-accept | executing | executing | Passed |
| confirming / notification-withdrawn | confirmation-invalidated | confirmation-invalidated | Passed |
| confirmation-invalidated / late-confirm-accept | withdrawn | withdrawn | Passed |
| executing / notification-withdrawn | executing-withdrawn | executing-withdrawn | Passed |
| older notification incarnation | offered | offered | Passed |
| future notification incarnation | offered | offered | Passed |
| unknown event is inert | offered | offered | Passed |
| empty delivery batch | offered | offered | Passed |
| N stale deliveries before current delivery | executing | confirming | Failed |
| trace destructive-click then confirm-accept | executing | executing | Passed |
| trace destructive-click then confirm-cancel | executing | offered | Failed |
| trace destructive-click then notification-withdrawn | executing-withdrawn | confirmation-invalidated | Failed |
| trace confirm-accept then command-success | succeeded | succeeded | Passed |
| trace confirm-accept then command-failure | failed | failed | Passed |
| trace confirm-accept then notification-withdrawn | executing-withdrawn | executing-withdrawn | Passed |
| trace confirm-cancel then destructive-click | executing | confirming | Failed |
| trace command-failure then retry-click | confirming-retry | confirming-retry | Passed |
| trace retry-click then retry-confirm-accept | executing | executing | Passed |
| trace retry-confirm-accept then command-success | succeeded | succeeded | Passed |
| trace retry-confirm-accept then command-failure | failed | failed | Passed |
| trace retry-confirm-accept then notification-withdrawn | executing-withdrawn | executing-withdrawn | Passed |
| trace notification-withdrawn then late-confirm-accept | withdrawn | withdrawn | Passed |
| domain state regression 1: submitted | {'phase': 'offered', 'value': []} | {'phase': 'offered', 'value': []} | Passed |
| domain state regression 2: submitted | {'phase': 'executing', 'value': [2]} | {'phase': 'executing', 'value': [2]} | Passed |
| domain state regression 3: submitted | {'phase': 'offered', 'value': []} | {'phase': 'offered', 'value': []} | Passed |
| domain state regression 4: consented | {'phase': 'offered', 'value': None} | {'phase': 'offered', 'value': None} | Passed |
| domain state regression 5: submitted | {'phase': 'executing-withdrawn', 'value': [2]} | {'phase': 'executing-withdrawn', 'value': [2]} | Passed |
| domain state regression 6: submitted | {'phase': 'withdrawn', 'value': []} | {'phase': 'withdrawn', 'value': []} | Passed |
| domain state regression 7: submitted | {'phase': 'executing-withdrawn', 'value': [2]} | {'phase': 'withdrawn', 'value': []} | Failed |
SHA-256 / f5e64a3c0d62283d5ce5eb9573afe672c3bccd9a99a73c596378cf18a07fc987
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 = {('offered', 'destructive-click'): 'succeeded', ('confirming', 'confirm-accept'): 'executing', ('confirming', 'confirm-cancel'): 'offered', ('executing', 'command-success'): 'succeeded', ('executing', 'command-failure'): 'failed', ('failed', 'retry-click'): 'confirming-retry', ('confirming-retry', 'retry-confirm-accept'): 'executing', ('confirming', 'notification-withdrawn'): 'confirmation-invalidated', ('confirmation-invalidated', 'late-confirm-accept'): 'withdrawn', ('executing', 'notification-withdrawn'): 'executing-withdrawn'}
data = json.loads(json.dumps({'revision': 2, 'consented': None, 'submitted': [], 'withdrawn': False})) if payload is None else {**json.loads(json.dumps({'revision': 2, 'consented': None, 'submitted': [], 'withdrawn': 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 ('confirm-accept','retry-confirm-accept'):
if data['withdrawn'] or arg.get('revision',data['revision']) != data['revision']: event = 'confirm-cancel'
else: data['consented'] = data['revision']
if event == 'notification-withdrawn': data['withdrawn'] = True
state = table.get((state, event), state)
if state == 'executing' and previous != 'executing': data['submitted'].append(data['revision'])
if state == 'offered': data['consented'] = 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('offered / destructive-click', solve('offered', [('destructive-click', N)], N), 'confirming')
check('confirming / confirm-accept', solve('confirming', [('confirm-accept', N)], N), 'executing')
check('confirming / confirm-cancel', solve('confirming', [('confirm-cancel', N)], N), 'offered')
check('executing / command-success', solve('executing', [('command-success', N)], N), 'succeeded')
check('executing / command-failure', solve('executing', [('command-failure', N)], N), 'failed')
check('failed / retry-click', solve('failed', [('retry-click', N)], N), 'confirming-retry')
check('confirming-retry / retry-confirm-accept', solve('confirming-retry', [('retry-confirm-accept', N)], N), 'executing')
check('confirming / notification-withdrawn', solve('confirming', [('notification-withdrawn', N)], N), 'confirmation-invalidated')
check('confirmation-invalidated / late-confirm-accept', solve('confirmation-invalidated', [('late-confirm-accept', N)], N), 'withdrawn')
check('executing / notification-withdrawn', solve('executing', [('notification-withdrawn', N)], N), 'executing-withdrawn')
check('older notification incarnation', solve('offered', [('destructive-click', N - 1)], N), 'offered')
check('future notification incarnation', solve('offered', [('destructive-click', N + 1)], N), 'offered')
check('unknown event is inert', solve('offered', [('unknown-event', N)], N), 'offered')
check('empty delivery batch', solve('offered', [], N), 'offered')
check('N stale deliveries before current delivery', solve('offered', [('destructive-click', N - 1)] * N + [('destructive-click', N)], N), 'confirming')
check('trace destructive-click then confirm-accept', solve('offered', [('destructive-click', N), ('confirm-accept', N)], N), 'executing')
check('trace destructive-click then confirm-cancel', solve('offered', [('destructive-click', N), ('confirm-cancel', N)], N), 'offered')
check('trace destructive-click then notification-withdrawn', solve('offered', [('destructive-click', N), ('notification-withdrawn', N)], N), 'confirmation-invalidated')
check('trace confirm-accept then command-success', solve('confirming', [('confirm-accept', N), ('command-success', N)], N), 'succeeded')
check('trace confirm-accept then command-failure', solve('confirming', [('confirm-accept', N), ('command-failure', N)], N), 'failed')
check('trace confirm-accept then notification-withdrawn', solve('confirming', [('confirm-accept', N), ('notification-withdrawn', N)], N), 'executing-withdrawn')
check('trace confirm-cancel then destructive-click', solve('confirming', [('confirm-cancel', N), ('destructive-click', N)], N), 'confirming')
check('trace command-failure then retry-click', solve('executing', [('command-failure', N), ('retry-click', N)], N), 'confirming-retry')
check('trace retry-click then retry-confirm-accept', solve('failed', [('retry-click', N), ('retry-confirm-accept', N)], N), 'executing')
check('trace retry-confirm-accept then command-success', solve('confirming-retry', [('retry-confirm-accept', N), ('command-success', N)], N), 'succeeded')
check('trace retry-confirm-accept then command-failure', solve('confirming-retry', [('retry-confirm-accept', N), ('command-failure', N)], N), 'failed')
check('trace retry-confirm-accept then notification-withdrawn', solve('confirming-retry', [('retry-confirm-accept', N), ('notification-withdrawn', N)], N), 'executing-withdrawn')
check('trace notification-withdrawn then late-confirm-accept', solve('confirming', [('notification-withdrawn', N), ('late-confirm-accept', N)], N), 'withdrawn')
check('domain state regression 1: submitted', solve('confirming', [('confirm-accept', N, {'revision': 1})], N, {}, 'submitted'), {'phase': 'offered', 'value': []})
check('domain state regression 2: submitted', solve('confirming', [('confirm-accept', N, {'revision': 2})], N, {}, 'submitted'), {'phase': 'executing', 'value': [2]})
check('domain state regression 3: submitted', solve('confirming', [('confirm-accept', N, {})], N, {'withdrawn': True}, 'submitted'), {'phase': 'offered', 'value': []})
check('domain state regression 4: consented', solve('confirming', [('confirm-cancel', N, {})], N, {'consented': 2}, 'consented'), {'phase': 'offered', 'value': None})
check('domain state regression 5: submitted', solve('executing', [('notification-withdrawn', N, {})], N, {'submitted': [2]}, 'submitted'), {'phase': 'executing-withdrawn', 'value': [2]})
check('domain state regression 6: submitted', solve('confirmation-invalidated', [('late-confirm-accept', N, {})], N, {'withdrawn': True}, 'submitted'), {'phase': 'withdrawn', 'value': []})
check('domain state regression 7: submitted', solve('offered', [('destructive-click', N, {}), ('notification-withdrawn', N, {}), ('late-confirm-accept', N, {})], N, {}, 'submitted'), {'phase': 'withdrawn', 'value': []})
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 |
|---|---|---|---|
| offered / destructive-click | succeeded | confirming | Failed |
| confirming / confirm-accept | executing | executing | Passed |
| confirming / confirm-cancel | offered | offered | Passed |
| executing / command-success | succeeded | succeeded | Passed |
| executing / command-failure | failed | failed | Passed |
| failed / retry-click | confirming-retry | confirming-retry | Passed |
| confirming-retry / retry-confirm-accept | executing | executing | Passed |
| confirming / notification-withdrawn | confirmation-invalidated | confirmation-invalidated | Passed |
| confirmation-invalidated / late-confirm-accept | withdrawn | withdrawn | Passed |
| executing / notification-withdrawn | executing-withdrawn | executing-withdrawn | Passed |
| older notification incarnation | offered | offered | Passed |
| future notification incarnation | offered | offered | Passed |
| unknown event is inert | offered | offered | Passed |
| empty delivery batch | offered | offered | Passed |
| N stale deliveries before current delivery | succeeded | confirming | Failed |
| trace destructive-click then confirm-accept | succeeded | executing | Failed |
| trace destructive-click then confirm-cancel | succeeded | offered | Failed |
| trace destructive-click then notification-withdrawn | succeeded | confirmation-invalidated | Failed |
| trace confirm-accept then command-success | succeeded | succeeded | Passed |
| trace confirm-accept then command-failure | failed | failed | Passed |
| trace confirm-accept then notification-withdrawn | executing-withdrawn | executing-withdrawn | Passed |
| trace confirm-cancel then destructive-click | succeeded | confirming | Failed |
| trace command-failure then retry-click | confirming-retry | confirming-retry | Passed |
| trace retry-click then retry-confirm-accept | executing | executing | Passed |
| trace retry-confirm-accept then command-success | succeeded | succeeded | Passed |
| trace retry-confirm-accept then command-failure | failed | failed | Passed |
| trace retry-confirm-accept then notification-withdrawn | executing-withdrawn | executing-withdrawn | Passed |
| trace notification-withdrawn then late-confirm-accept | withdrawn | withdrawn | Passed |
| domain state regression 1: submitted | {'phase': 'offered', 'value': []} | {'phase': 'offered', 'value': []} | Passed |
| domain state regression 2: submitted | {'phase': 'executing', 'value': [2]} | {'phase': 'executing', 'value': [2]} | Passed |
| domain state regression 3: submitted | {'phase': 'offered', 'value': []} | {'phase': 'offered', 'value': []} | Passed |
| domain state regression 4: consented | {'phase': 'offered', 'value': None} | {'phase': 'offered', 'value': None} | Passed |
| domain state regression 5: submitted | {'phase': 'executing-withdrawn', 'value': [2]} | {'phase': 'executing-withdrawn', 'value': [2]} | Passed |
| domain state regression 6: submitted | {'phase': 'withdrawn', 'value': []} | {'phase': 'withdrawn', 'value': []} | Passed |
| domain state regression 7: submitted | {'phase': 'succeeded', 'value': []} | {'phase': 'withdrawn', 'value': []} | Failed |
SHA-256 / 9e37cb8dbda574681fcaa18ee04a2208083d0b78f082801282b226f23b00e16c
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 = {('offered', 'destructive-click'): 'confirming', ('confirming', 'confirm-accept'): 'executing', ('confirming', 'confirm-cancel'): 'offered', ('executing', 'command-success'): 'succeeded', ('executing', 'command-failure'): 'failed', ('failed', 'retry-click'): 'confirming-retry', ('confirming-retry', 'retry-confirm-accept'): 'executing', ('confirming', 'notification-withdrawn'): 'confirmation-invalidated', ('confirmation-invalidated', 'late-confirm-accept'): 'withdrawn', ('executing', 'notification-withdrawn'): 'executing-withdrawn'}
data = json.loads(json.dumps({'revision': 2, 'consented': None, 'submitted': [], 'withdrawn': False})) if payload is None else {**json.loads(json.dumps({'revision': 2, 'consented': None, 'submitted': [], 'withdrawn': 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 ('confirm-accept','retry-confirm-accept'):
if data['withdrawn'] or arg.get('revision',data['revision']) != data['revision']: event = 'confirm-cancel'
else: data['consented'] = data['revision']
if event == 'notification-withdrawn': data['withdrawn'] = True
state = table.get((state, event), state)
if state == 'executing' and previous != 'executing': data['submitted'].append(data['revision'])
if state == 'offered': data['consented'] = 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('offered / destructive-click', solve('offered', [('destructive-click', N)], N), 'confirming')
check('confirming / confirm-accept', solve('confirming', [('confirm-accept', N)], N), 'executing')
check('confirming / confirm-cancel', solve('confirming', [('confirm-cancel', N)], N), 'offered')
check('executing / command-success', solve('executing', [('command-success', N)], N), 'succeeded')
check('executing / command-failure', solve('executing', [('command-failure', N)], N), 'failed')
check('failed / retry-click', solve('failed', [('retry-click', N)], N), 'confirming-retry')
check('confirming-retry / retry-confirm-accept', solve('confirming-retry', [('retry-confirm-accept', N)], N), 'executing')
check('confirming / notification-withdrawn', solve('confirming', [('notification-withdrawn', N)], N), 'confirmation-invalidated')
check('confirmation-invalidated / late-confirm-accept', solve('confirmation-invalidated', [('late-confirm-accept', N)], N), 'withdrawn')
check('executing / notification-withdrawn', solve('executing', [('notification-withdrawn', N)], N), 'executing-withdrawn')
check('older notification incarnation', solve('offered', [('destructive-click', N - 1)], N), 'offered')
check('future notification incarnation', solve('offered', [('destructive-click', N + 1)], N), 'offered')
check('unknown event is inert', solve('offered', [('unknown-event', N)], N), 'offered')
check('empty delivery batch', solve('offered', [], N), 'offered')
check('N stale deliveries before current delivery', solve('offered', [('destructive-click', N - 1)] * N + [('destructive-click', N)], N), 'confirming')
check('trace destructive-click then confirm-accept', solve('offered', [('destructive-click', N), ('confirm-accept', N)], N), 'executing')
check('trace destructive-click then confirm-cancel', solve('offered', [('destructive-click', N), ('confirm-cancel', N)], N), 'offered')
check('trace destructive-click then notification-withdrawn', solve('offered', [('destructive-click', N), ('notification-withdrawn', N)], N), 'confirmation-invalidated')
check('trace confirm-accept then command-success', solve('confirming', [('confirm-accept', N), ('command-success', N)], N), 'succeeded')
check('trace confirm-accept then command-failure', solve('confirming', [('confirm-accept', N), ('command-failure', N)], N), 'failed')
check('trace confirm-accept then notification-withdrawn', solve('confirming', [('confirm-accept', N), ('notification-withdrawn', N)], N), 'executing-withdrawn')
check('trace confirm-cancel then destructive-click', solve('confirming', [('confirm-cancel', N), ('destructive-click', N)], N), 'confirming')
check('trace command-failure then retry-click', solve('executing', [('command-failure', N), ('retry-click', N)], N), 'confirming-retry')
check('trace retry-click then retry-confirm-accept', solve('failed', [('retry-click', N), ('retry-confirm-accept', N)], N), 'executing')
check('trace retry-confirm-accept then command-success', solve('confirming-retry', [('retry-confirm-accept', N), ('command-success', N)], N), 'succeeded')
check('trace retry-confirm-accept then command-failure', solve('confirming-retry', [('retry-confirm-accept', N), ('command-failure', N)], N), 'failed')
check('trace retry-confirm-accept then notification-withdrawn', solve('confirming-retry', [('retry-confirm-accept', N), ('notification-withdrawn', N)], N), 'executing-withdrawn')
check('trace notification-withdrawn then late-confirm-accept', solve('confirming', [('notification-withdrawn', N), ('late-confirm-accept', N)], N), 'withdrawn')
check('domain state regression 1: submitted', solve('confirming', [('confirm-accept', N, {'revision': 1})], N, {}, 'submitted'), {'phase': 'offered', 'value': []})
check('domain state regression 2: submitted', solve('confirming', [('confirm-accept', N, {'revision': 2})], N, {}, 'submitted'), {'phase': 'executing', 'value': [2]})
check('domain state regression 3: submitted', solve('confirming', [('confirm-accept', N, {})], N, {'withdrawn': True}, 'submitted'), {'phase': 'offered', 'value': []})
check('domain state regression 4: consented', solve('confirming', [('confirm-cancel', N, {})], N, {'consented': 2}, 'consented'), {'phase': 'offered', 'value': None})
check('domain state regression 5: submitted', solve('executing', [('notification-withdrawn', N, {})], N, {'submitted': [2]}, 'submitted'), {'phase': 'executing-withdrawn', 'value': [2]})
check('domain state regression 6: submitted', solve('confirmation-invalidated', [('late-confirm-accept', N, {})], N, {'withdrawn': True}, 'submitted'), {'phase': 'withdrawn', 'value': []})
check('domain state regression 7: submitted', solve('offered', [('destructive-click', N, {}), ('notification-withdrawn', N, {}), ('late-confirm-accept', N, {})], N, {}, 'submitted'), {'phase': 'withdrawn', 'value': []})
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 |
|---|---|---|---|
| offered / destructive-click | confirming | confirming | Passed |
| confirming / confirm-accept | executing | executing | Passed |
| confirming / confirm-cancel | offered | offered | Passed |
| executing / command-success | succeeded | succeeded | Passed |
| executing / command-failure | failed | failed | Passed |
| failed / retry-click | confirming-retry | confirming-retry | Passed |
| confirming-retry / retry-confirm-accept | executing | executing | Passed |
| confirming / notification-withdrawn | confirmation-invalidated | confirmation-invalidated | Passed |
| confirmation-invalidated / late-confirm-accept | withdrawn | withdrawn | Passed |
| executing / notification-withdrawn | executing-withdrawn | executing-withdrawn | Passed |
| older notification incarnation | offered | offered | Passed |
| future notification incarnation | offered | offered | Passed |
| unknown event is inert | offered | offered | Passed |
| empty delivery batch | offered | offered | Passed |
| N stale deliveries before current delivery | confirming | confirming | Passed |
| trace destructive-click then confirm-accept | executing | executing | Passed |
| trace destructive-click then confirm-cancel | offered | offered | Passed |
| trace destructive-click then notification-withdrawn | confirmation-invalidated | confirmation-invalidated | Passed |
| trace confirm-accept then command-success | succeeded | succeeded | Passed |
| trace confirm-accept then command-failure | failed | failed | Passed |
| trace confirm-accept then notification-withdrawn | executing-withdrawn | executing-withdrawn | Passed |
| trace confirm-cancel then destructive-click | confirming | confirming | Passed |
| trace command-failure then retry-click | confirming-retry | confirming-retry | Passed |
| trace retry-click then retry-confirm-accept | executing | executing | Passed |
| trace retry-confirm-accept then command-success | succeeded | succeeded | Passed |
| trace retry-confirm-accept then command-failure | failed | failed | Passed |
| trace retry-confirm-accept then notification-withdrawn | executing-withdrawn | executing-withdrawn | Passed |
| trace notification-withdrawn then late-confirm-accept | withdrawn | withdrawn | Passed |
| domain state regression 1: submitted | {'phase': 'offered', 'value': []} | {'phase': 'offered', 'value': []} | Passed |
| domain state regression 2: submitted | {'phase': 'executing', 'value': [2]} | {'phase': 'executing', 'value': [2]} | Passed |
| domain state regression 3: submitted | {'phase': 'offered', 'value': []} | {'phase': 'offered', 'value': []} | Passed |
| domain state regression 4: consented | {'phase': 'offered', 'value': None} | {'phase': 'offered', 'value': None} | Passed |
| domain state regression 5: submitted | {'phase': 'executing-withdrawn', 'value': [2]} | {'phase': 'executing-withdrawn', 'value': [2]} | Passed |
| domain state regression 6: submitted | {'phase': 'withdrawn', 'value': []} | {'phase': 'withdrawn', 'value': []} | Passed |
| domain state regression 7: submitted | {'phase': 'withdrawn', 'value': []} | {'phase': 'withdrawn', 'value': []} | Passed |
SHA-256 / 4776523f453581e8eba03f337a176a54d22d898c4e78e7406ac86853410306bd
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 2026-09-29T14:42:39.651616+00:00.
Case digest / be5f2a2212539401e82ebd8c95c9367abafb23c814007e94ee6b08923051f9d3