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FA-25936 / Filter interfaces / Open access

Descending count order does not merge unknown with exact zero · case 01

Descending count order does not merge unknown with exact zero is violated by the widget projection.

Verified by executionVariant 1 · 10 checks per implementationDownload source bundle ↓JSON ↗

ROOT CAUSE

The descending-count decision uses `sorted(d['options'],key=lambda x:d['counts'][x] or 0)` instead of the stipulated facet-ordering projection.

THE FAILURE

The descending-count decision uses `sorted(d['options'],key=lambda x:d['counts'][x] or 0)` instead of the stipulated facet-ordering projection.

Unsuccessful approach: The attempted correction `sorted(d['options'],key=lambda x:-(d['counts'][x] or 0))` still violates the explicit contract fixtures.

Case contract

Facet ordering uses pinned then selected priority, descending known counts, and stable server order for ties; unknown counts sort behind known counts. This example checks: Descending count order does not merge unknown with exact zero.

Why this case matters

Filter-widget state and serialization must preserve user constraints while the view changes.

1 / The failure

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

N = 1
observations = []
def solve(d):
    return {'pin-priority':([x for x in d['options'] if x in d['pinned']]+[x for x in d['options'] if x not in d['pinned']]), 'selection-priority':([x for x in d['options'] if x in d['selected']]+[x for x in d['options'] if x not in d['selected']]), 'unknown-last':(sorted(d['options'],key=lambda x:d['counts'][x] is None)), 'descending-count':(sorted(d['options'],key=lambda x:d['counts'][x] or 0)), 'stable-count-ties':(sorted(d['options'],key=lambda x:-(d['counts'][x] if d['counts'][x] is not None else -1))), 'pin-visible-only':([x for x in d['pinned'] if x in d['options']])}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = {1: [({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'b', 'a'], 'descending-count': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']})], 2: [({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['a'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['c', 'b', 'a'], 'descending-count': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['c', 'b', 'a'], 'descending-count': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []})], 3: [({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'b', 'a'], 'descending-count': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': ['a', 'b']})], 4: [({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['a'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['c', 'b', 'a'], 'descending-count': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']})], 5: [({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'b', 'a'], 'descending-count': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'b', 'a'], 'descending-count': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []})]}
for index, (data, expected) in enumerate(fixtures[N]):
    check("contract fixture " + str(index), solve(data), expected)
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
Boundary fixtureActualExpectedOutcome
contract fixture 0{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': [], 'selection-priority': ['a', 'b', 'c'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['a', 'c', 'b']}{'descending-count': ['c', 'a', 'b'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': [], 'selection-priority': ['a', 'b', 'c'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['a', 'c', 'b']}Failed
contract fixture 1{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': [], 'selection-priority': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a']}{'descending-count': ['b', 'c', 'a'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': [], 'selection-priority': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a']}Failed
contract fixture 2{'descending-count': ['c', 'b', 'a'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['a', 'b', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'unknown-last': ['b', 'a', 'c']}{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['a', 'b', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'unknown-last': ['b', 'a', 'c']}Failed
contract fixture 3{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['b', 'c', 'a'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['a', 'c', 'b']}{'descending-count': ['c', 'a', 'b'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['b', 'c', 'a'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['a', 'c', 'b']}Failed
contract fixture 4{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a']}{'descending-count': ['b', 'c', 'a'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a']}Failed
contract fixture 5{'descending-count': ['c', 'b', 'a'], 'pin-priority': ['c', 'b', 'a'], 'pin-visible-only': [], 'selection-priority': ['a', 'c', 'b'], 'stable-count-ties': ['b', 'a', 'c'], 'unknown-last': ['b', 'a', 'c']}{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['c', 'b', 'a'], 'pin-visible-only': [], 'selection-priority': ['a', 'c', 'b'], 'stable-count-ties': ['b', 'a', 'c'], 'unknown-last': ['b', 'a', 'c']}Failed
contract fixture 6{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['c', 'b', 'a'], 'pin-visible-only': [], 'selection-priority': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['c', 'a', 'b']}{'descending-count': ['c', 'a', 'b'], 'pin-priority': ['c', 'b', 'a'], 'pin-visible-only': [], 'selection-priority': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['c', 'a', 'b']}Failed
contract fixture 7{'descending-count': ['c', 'b', 'a'], 'pin-priority': ['c', 'b', 'a'], 'pin-visible-only': [], 'selection-priority': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'unknown-last': ['c', 'b', 'a']}{'descending-count': ['c', 'b', 'a'], 'pin-priority': ['c', 'b', 'a'], 'pin-visible-only': [], 'selection-priority': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'unknown-last': ['c', 'b', 'a']}Passed
contract fixture 8{'descending-count': ['c', 'b', 'a'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['a', 'c', 'b'], 'stable-count-ties': ['b', 'a', 'c'], 'unknown-last': ['b', 'a', 'c']}{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['a', 'c', 'b'], 'stable-count-ties': ['b', 'a', 'c'], 'unknown-last': ['b', 'a', 'c']}Failed
contract fixture 9{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['c', 'a', 'b']}{'descending-count': ['c', 'a', 'b'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['c', 'a', 'b']}Failed

SHA-256 / 9eedf30db02a9974e21805734894d6fc71691379911162a76d497970a3b626d1

2 / The unsuccessful fix

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

N = 1
observations = []
def solve(d):
    return {'pin-priority':([x for x in d['options'] if x in d['pinned']]+[x for x in d['options'] if x not in d['pinned']]), 'selection-priority':([x for x in d['options'] if x in d['selected']]+[x for x in d['options'] if x not in d['selected']]), 'unknown-last':(sorted(d['options'],key=lambda x:d['counts'][x] is None)), 'descending-count':(sorted(d['options'],key=lambda x:-(d['counts'][x] or 0))), 'stable-count-ties':(sorted(d['options'],key=lambda x:-(d['counts'][x] if d['counts'][x] is not None else -1))), 'pin-visible-only':([x for x in d['pinned'] if x in d['options']])}
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = {1: [({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'b', 'a'], 'descending-count': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']})], 2: [({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['a'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['c', 'b', 'a'], 'descending-count': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['c', 'b', 'a'], 'descending-count': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []})], 3: [({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'b', 'a'], 'descending-count': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': ['a', 'b']})], 4: [({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['a', 'c', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['a'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['c', 'b', 'a'], 'descending-count': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']})], 5: [({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': []}), ({'options': ['b', 'a', 'c'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a'], 'descending-count': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': [], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['c', 'b', 'a'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'b', 'a'], 'descending-count': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'pin-visible-only': []}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'c', 'b'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': 0, 'b': None, 'c': 3}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'a', 'b'], 'descending-count': ['c', 'a', 'b'], 'stable-count-ties': ['c', 'a', 'b'], 'pin-visible-only': ['a', 'b']}), ({'options': ['c', 'b', 'a'], 'pinned': ['a', 'z', 'b'], 'selected': ['b', 'c'], 'counts': {'a': None, 'b': 0, 'c': 0}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['c', 'b', 'a'], 'unknown-last': ['c', 'b', 'a'], 'descending-count': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'pin-visible-only': ['a', 'b']}), ({'options': ['b', 'a', 'c'], 'pinned': [], 'selected': ['a'], 'counts': {'a': 2, 'b': 2, 'c': None}}, {'pin-priority': ['b', 'a', 'c'], 'selection-priority': ['a', 'b', 'c'], 'unknown-last': ['b', 'a', 'c'], 'descending-count': ['b', 'a', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'pin-visible-only': []})]}
for index, (data, expected) in enumerate(fixtures[N]):
    check("contract fixture " + str(index), solve(data), expected)
print(json.dumps({"observations": observations, "passed": all(x["passed"] for x in observations)}, ensure_ascii=False))
raise SystemExit(0 if all(x["passed"] for x in observations) else 1)
Boundary fixtureActualExpectedOutcome
contract fixture 0{'descending-count': ['c', 'b', 'a'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': [], 'selection-priority': ['a', 'b', 'c'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['a', 'c', 'b']}{'descending-count': ['c', 'a', 'b'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': [], 'selection-priority': ['a', 'b', 'c'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['a', 'c', 'b']}Failed
contract fixture 1{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': [], 'selection-priority': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a']}{'descending-count': ['b', 'c', 'a'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': [], 'selection-priority': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a']}Failed
contract fixture 2{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['a', 'b', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'unknown-last': ['b', 'a', 'c']}{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['a', 'b', 'c'], 'stable-count-ties': ['b', 'a', 'c'], 'unknown-last': ['b', 'a', 'c']}Passed
contract fixture 3{'descending-count': ['c', 'b', 'a'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['b', 'c', 'a'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['a', 'c', 'b']}{'descending-count': ['c', 'a', 'b'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['b', 'c', 'a'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['a', 'c', 'b']}Failed
contract fixture 4{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a']}{'descending-count': ['b', 'c', 'a'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['b', 'c', 'a'], 'stable-count-ties': ['b', 'c', 'a'], 'unknown-last': ['b', 'c', 'a']}Failed
contract fixture 5{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['c', 'b', 'a'], 'pin-visible-only': [], 'selection-priority': ['a', 'c', 'b'], 'stable-count-ties': ['b', 'a', 'c'], 'unknown-last': ['b', 'a', 'c']}{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['c', 'b', 'a'], 'pin-visible-only': [], 'selection-priority': ['a', 'c', 'b'], 'stable-count-ties': ['b', 'a', 'c'], 'unknown-last': ['b', 'a', 'c']}Passed
contract fixture 6{'descending-count': ['c', 'b', 'a'], 'pin-priority': ['c', 'b', 'a'], 'pin-visible-only': [], 'selection-priority': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['c', 'a', 'b']}{'descending-count': ['c', 'a', 'b'], 'pin-priority': ['c', 'b', 'a'], 'pin-visible-only': [], 'selection-priority': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['c', 'a', 'b']}Failed
contract fixture 7{'descending-count': ['c', 'b', 'a'], 'pin-priority': ['c', 'b', 'a'], 'pin-visible-only': [], 'selection-priority': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'unknown-last': ['c', 'b', 'a']}{'descending-count': ['c', 'b', 'a'], 'pin-priority': ['c', 'b', 'a'], 'pin-visible-only': [], 'selection-priority': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'b', 'a'], 'unknown-last': ['c', 'b', 'a']}Passed
contract fixture 8{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['a', 'c', 'b'], 'stable-count-ties': ['b', 'a', 'c'], 'unknown-last': ['b', 'a', 'c']}{'descending-count': ['b', 'a', 'c'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['a', 'c', 'b'], 'stable-count-ties': ['b', 'a', 'c'], 'unknown-last': ['b', 'a', 'c']}Passed
contract fixture 9{'descending-count': ['c', 'b', 'a'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['c', 'a', 'b']}{'descending-count': ['c', 'a', 'b'], 'pin-priority': ['b', 'a', 'c'], 'pin-visible-only': ['a', 'b'], 'selection-priority': ['c', 'b', 'a'], 'stable-count-ties': ['c', 'a', 'b'], 'unknown-last': ['c', 'a', 'b']}Failed

SHA-256 / df5dfdfdf7274d087c6bb131ca1b62d4fb8ac7126d1e9d75e396abd15c450eeb

HELD IN THE MEMBER ARCHIVE

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

This mechanism has 10 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

Deterministic bounded UI-state model only; no browser, query engine, network, or production-standard conformance is claimed. This reproducer isolates one failure mechanism. Results cover the supplied fixtures. Variants within a family share a test contract and should remain grouped when constructing evaluation splits. Related mechanisms with a shared evaluation_group must also remain together; these controlled models are not independent production incidents.

Observations recorded using Python 3.12.14 at 2026-09-29T14:41:11.295016+00:00.

Case digest / ce2064449c7e312e014c2b6aeac1a701892107f76be10bf599736cacf483849f