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FA-77561 / Legal deadline computation / Open access

Earliest hearing date after court-day notice plus mailing days: mail days · case 01

Out-of-state mail service gets only 5 extra days.

Verified by executionVariant 1 · 7 checks per implementationDownload source bundle ↓JSON ↗

ROOT CAUSE

Every mail variant receives the in-state mailing extension.

THE FAILURE

Every mail variant receives the in-state mailing extension.

Unsuccessful approach: The partial repair `{'mail': 5, 'mail-out-of-state': 10}.get(method, 0)` fixes out-of-state mail but drops the express delivery extension.

Case contract

Stipulated: a motion must be served at least notice_days court days before the hearing. Excluding the service day, count notice_days court days (not Saturday, Sunday or a listed holiday); then add calendar days for the service method (mail 5, mail-out-of-state 10, express 2, otherwise 0). If that day is not a court day, the earliest hearing is the next court day.

Why this case matters

Docketing systems compute filing and response deadlines from trigger events; a wrong date can forfeit a right.

1 / The failure

Exit 1
"""Failure Map reference implementation. Python standard library only."""
import json
import datetime as dt
import calendar
N = 1
observations = []
def solve(served, notice_days, method, holidays):
    s = dt.date.fromisoformat(served)
    hol = {dt.date.fromisoformat(x) for x in holidays}
    def closed(d):
        return d.weekday() >= 5 or d in hol
    d = s
    n = 0
    while n < notice_days:
        d += dt.timedelta(days=1)
        if not closed(d):
            n += 1
    d += dt.timedelta(days=5 if method.startswith('mail') else 0)
    while closed(d):
        d += dt.timedelta(days=1)
    return d.isoformat()
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [[('regression: mail lands on holiday',
   ['2024-06-21',
    1,
    'mail-out-of-state',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-07-05'),
  ('friday holiday then weekend', ['2024-06-24', 1, 'mail-out-of-state', ['2024-07-05']], '2024-07-08'),
  ('sixteen court days across holiday',
   ['2024-05-15',
    16,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-06-07'),
  ('out of state mail',
   ['2024-03-01',
    16,
    'mail-out-of-state',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-04-04'),
  ('express',
   ['2024-03-01',
    16,
    'express',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-27'),
  ('served on a saturday',
   ['2024-03-02',
    3,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-06'),
  ('mail lands on weekend',
   ['2024-03-04',
    3,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-12')],
 [('sixteen court days across holiday',
   ['2024-05-15',
    16,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-06-07'),
  ('out of state mail',
   ['2024-03-01',
    16,
    'mail-out-of-state',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-04-04'),
  ('express',
   ['2024-03-01',
    16,
    'express',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-27'),
  ('served on a saturday',
   ['2024-03-02',
    3,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-06'),
  ('mail lands on weekend',
   ['2024-03-04',
    3,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-12'),
  ('thanksgiving notice',
   ['2024-11-18',
    9,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-12-09'),
  ('mail then saturday then monday holiday',
   ['2024-08-21',
    2,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-08-28')],
 [('express',
   ['2024-03-01',
    16,
    'express',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-27'),
  ('served on a saturday',
   ['2024-03-02',
    3,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-06'),
  ('mail lands on weekend',
   ['2024-03-04',
    3,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-12'),
  ('thanksgiving notice',
   ['2024-11-18',
    9,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-12-09'),
  ('mail then saturday then monday holiday',
   ['2024-08-21',
    2,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-08-28'),
  ('zero notice',
   ['2024-04-05',
    0,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-04-10'),
  ('hand across july 4',
   ['2024-06-28',
    5,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-07-08')],
 [('mail lands on weekend',
   ['2024-03-04',
    3,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-12'),
  ('thanksgiving notice',
   ['2024-11-18',
    9,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-12-09'),
  ('mail then saturday then monday holiday',
   ['2024-08-21',
    2,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-08-28'),
  ('zero notice',
   ['2024-04-05',
    0,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-04-10'),
  ('hand across july 4',
   ['2024-06-28',
    5,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-07-08'),
  ('express to sunday',
   ['2024-10-02',
    1,
    'express',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-10-07'),
  ('regression: mail lands on holiday',
   ['2024-06-21',
    1,
    'mail-out-of-state',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-07-05')],
 [('mail then saturday then monday holiday',
   ['2024-08-21',
    2,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-08-28'),
  ('zero notice',
   ['2024-04-05',
    0,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-04-10'),
  ('hand across july 4',
   ['2024-06-28',
    5,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-07-08'),
  ('express to sunday',
   ['2024-10-02',
    1,
    'express',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-10-07'),
  ('regression: mail lands on holiday',
   ['2024-06-21',
    1,
    'mail-out-of-state',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-07-05'),
  ('friday holiday then weekend', ['2024-06-24', 1, 'mail-out-of-state', ['2024-07-05']], '2024-07-08'),
  ('sixteen court days across holiday',
   ['2024-05-15',
    16,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-06-07')]]
for label, args, expected in fixtures[N-1]:
    check(label, solve(*args), 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
regression: mail lands on holiday2024-07-012024-07-05Failed
friday holiday then weekend2024-07-012024-07-08Failed
sixteen court days across holiday2024-06-072024-06-07Passed
out of state mail2024-04-012024-04-04Failed
express2024-03-252024-03-27Failed
served on a saturday2024-03-062024-03-06Passed
mail lands on weekend2024-03-122024-03-12Passed

SHA-256 / 6b3368cafb1bb26387e35ee538a94dac838c370c6b718b282563085cc115824b

2 / The unsuccessful fix

Exit 1
"""Failure Map reference implementation. Python standard library only."""
import json
import datetime as dt
import calendar
N = 1
observations = []
def solve(served, notice_days, method, holidays):
    s = dt.date.fromisoformat(served)
    hol = {dt.date.fromisoformat(x) for x in holidays}
    def closed(d):
        return d.weekday() >= 5 or d in hol
    d = s
    n = 0
    while n < notice_days:
        d += dt.timedelta(days=1)
        if not closed(d):
            n += 1
    d += dt.timedelta(days={'mail': 5, 'mail-out-of-state': 10}.get(method, 0))
    while closed(d):
        d += dt.timedelta(days=1)
    return d.isoformat()
def check(label, actual, expected):
    observations.append({"check": label, "actual": actual, "expected": expected, "passed": actual == expected})
fixtures = [[('regression: mail lands on holiday',
   ['2024-06-21',
    1,
    'mail-out-of-state',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-07-05'),
  ('friday holiday then weekend', ['2024-06-24', 1, 'mail-out-of-state', ['2024-07-05']], '2024-07-08'),
  ('sixteen court days across holiday',
   ['2024-05-15',
    16,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-06-07'),
  ('out of state mail',
   ['2024-03-01',
    16,
    'mail-out-of-state',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-04-04'),
  ('express',
   ['2024-03-01',
    16,
    'express',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-27'),
  ('served on a saturday',
   ['2024-03-02',
    3,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-06'),
  ('mail lands on weekend',
   ['2024-03-04',
    3,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-12')],
 [('sixteen court days across holiday',
   ['2024-05-15',
    16,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-06-07'),
  ('out of state mail',
   ['2024-03-01',
    16,
    'mail-out-of-state',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-04-04'),
  ('express',
   ['2024-03-01',
    16,
    'express',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-27'),
  ('served on a saturday',
   ['2024-03-02',
    3,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-06'),
  ('mail lands on weekend',
   ['2024-03-04',
    3,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-12'),
  ('thanksgiving notice',
   ['2024-11-18',
    9,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-12-09'),
  ('mail then saturday then monday holiday',
   ['2024-08-21',
    2,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-08-28')],
 [('express',
   ['2024-03-01',
    16,
    'express',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-27'),
  ('served on a saturday',
   ['2024-03-02',
    3,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-06'),
  ('mail lands on weekend',
   ['2024-03-04',
    3,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-12'),
  ('thanksgiving notice',
   ['2024-11-18',
    9,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-12-09'),
  ('mail then saturday then monday holiday',
   ['2024-08-21',
    2,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-08-28'),
  ('zero notice',
   ['2024-04-05',
    0,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-04-10'),
  ('hand across july 4',
   ['2024-06-28',
    5,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-07-08')],
 [('mail lands on weekend',
   ['2024-03-04',
    3,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-03-12'),
  ('thanksgiving notice',
   ['2024-11-18',
    9,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-12-09'),
  ('mail then saturday then monday holiday',
   ['2024-08-21',
    2,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-08-28'),
  ('zero notice',
   ['2024-04-05',
    0,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-04-10'),
  ('hand across july 4',
   ['2024-06-28',
    5,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-07-08'),
  ('express to sunday',
   ['2024-10-02',
    1,
    'express',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-10-07'),
  ('regression: mail lands on holiday',
   ['2024-06-21',
    1,
    'mail-out-of-state',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-07-05')],
 [('mail then saturday then monday holiday',
   ['2024-08-21',
    2,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-08-28'),
  ('zero notice',
   ['2024-04-05',
    0,
    'mail',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-04-10'),
  ('hand across july 4',
   ['2024-06-28',
    5,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-07-08'),
  ('express to sunday',
   ['2024-10-02',
    1,
    'express',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-10-07'),
  ('regression: mail lands on holiday',
   ['2024-06-21',
    1,
    'mail-out-of-state',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-07-05'),
  ('friday holiday then weekend', ['2024-06-24', 1, 'mail-out-of-state', ['2024-07-05']], '2024-07-08'),
  ('sixteen court days across holiday',
   ['2024-05-15',
    16,
    'hand',
    ['2024-01-01',
     '2024-01-15',
     '2024-02-19',
     '2024-05-27',
     '2024-06-19',
     '2024-07-04',
     '2024-09-02',
     '2024-10-14',
     '2024-11-11',
     '2024-11-28',
     '2024-12-25']],
   '2024-06-07')]]
for label, args, expected in fixtures[N-1]:
    check(label, solve(*args), 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
regression: mail lands on holiday2024-07-052024-07-05Passed
friday holiday then weekend2024-07-082024-07-08Passed
sixteen court days across holiday2024-06-072024-06-07Passed
out of state mail2024-04-042024-04-04Passed
express2024-03-252024-03-27Failed
served on a saturday2024-03-062024-03-06Passed
mail lands on weekend2024-03-122024-03-12Passed

SHA-256 / 2508479d41c9f5270ff1beb109005102d3e2b478e40b9ad239fef3536c72c207

HELD IN THE MEMBER ARCHIVE

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

This mechanism has 7 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

Stipulated toy deadline rules evaluated offline on explicit fixtures. The contract is inspired by common court-rule structures but is not legal advice and makes no claim to reproduce any jurisdiction's rules. 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 2026-09-29T14:49:26.552462+00:00.

Case digest / 5ef256352aab6815d9c38c85b707759f506f954bb2598e7074360133555602e0