2005286 - New Test262 failures in Temporal (as of December 10, 2025)

Status: RESOLVED DUPLICATE of bug 2013845

(Core :: JavaScript: Standard Library, defect, P3)

Description

[Dan Minor [:dminor]]

Looking at the test262 commit log, there's been a lot of activity with Intl Era Monthcode, calendars, leap year handling, among others. There's probably multiple issues here, but it's not obvious how to split it up, so I'll file a single bug to keep track of this for now:
test262/built-ins/Temporal/Duration/prototype/round/relativeto-date-limits.js
test262/built-ins/Temporal/Duration/prototype/total/relativeto-date-limits.js
test262/intl402/Temporal/PlainYearMonth/prototype/subtract/era-boundary-ethiopic.js
test262/intl402/Temporal/PlainYearMonth/prototype/year/arithmetic-year.js
test262/intl402/Temporal/PlainYearMonth/prototype/until/leap-months-hebrew.js
test262/intl402/Temporal/PlainYearMonth/prototype/until/leap-months-dangi.js
test262/intl402/Temporal/PlainYearMonth/prototype/until/era-boundary-ethiopic.js
test262/intl402/Temporal/PlainYearMonth/prototype/until/leap-months-chinese.js
test262/intl402/Temporal/PlainYearMonth/prototype/since/leap-months-hebrew.js
test262/intl402/Temporal/PlainYearMonth/prototype/since/leap-months-dangi.js
test262/intl402/Temporal/PlainYearMonth/prototype/since/era-boundary-ethiopic.js
test262/intl402/Temporal/PlainYearMonth/prototype/since/leap-months-chinese.js
test262/intl402/Temporal/PlainYearMonth/prototype/with/mutually-exclusive-fields-ethiopic.js
test262/intl402/Temporal/PlainYearMonth/prototype/add/era-boundary-ethiopic.js
test262/intl402/Temporal/PlainYearMonth/from/era-boundary-ethiopic.js
test262/intl402/Temporal/PlainYearMonth/from/extreme-dates.js
test262/intl402/Temporal/PlainYearMonth/from/roundtrip-from-property-bag.js
test262/intl402/Temporal/PlainDate/prototype/year/arithmetic-year.js
test262/intl402/Temporal/PlainDate/prototype/until/era-boundary-ethiopic.js
test262/intl402/Temporal/PlainDate/prototype/since/era-boundary-ethiopic.js
test262/intl402/Temporal/PlainDate/prototype/with/mutually-exclusive-fields-ethiopic.js
test262/intl402/Temporal/PlainDate/prototype/withCalendar/extreme-dates.js
test262/intl402/Temporal/PlainDate/from/leap-year-hebrew.js
test262/intl402/Temporal/PlainDate/from/era-boundary-ethiopic.js
test262/intl402/Temporal/PlainDate/from/extreme-dates.js
test262/intl402/Temporal/PlainDate/from/roundtrip-from-string.js
test262/intl402/Temporal/PlainDate/from/roundtrip-from-property-bag.js
test262/intl402/Temporal/ZonedDateTime/prototype/year/arithmetic-year.js
test262/intl402/Temporal/ZonedDateTime/prototype/until/era-boundary-ethiopic.js
test262/intl402/Temporal/ZonedDateTime/prototype/since/era-boundary-ethiopic.js
test262/intl402/Temporal/ZonedDateTime/prototype/with/mutually-exclusive-fields-ethiopic.js
test262/intl402/Temporal/ZonedDateTime/prototype/withCalendar/extreme-dates.js
test262/intl402/Temporal/ZonedDateTime/from/leap-year-hebrew.js
test262/intl402/Temporal/ZonedDateTime/from/era-boundary-ethiopic.js
test262/intl402/Temporal/ZonedDateTime/from/extreme-dates.js
test262/intl402/Temporal/ZonedDateTime/from/roundtrip-from-string.js
test262/intl402/Temporal/ZonedDateTime/from/roundtrip-from-property-bag.js
test262/intl402/Temporal/PlainDateTime/prototype/year/arithmetic-year.js
test262/intl402/Temporal/PlainDateTime/prototype/until/era-boundary-ethiopic.js
test262/intl402/Temporal/PlainDateTime/prototype/since/era-boundary-ethiopic.js
test262/intl402/Temporal/PlainDateTime/prototype/with/mutually-exclusive-fields-ethiopic.js
test262/intl402/Temporal/PlainDateTime/prototype/withCalendar/extreme-dates.js
test262/intl402/Temporal/PlainDateTime/from/leap-year-hebrew.js
test262/intl402/Temporal/PlainDateTime/from/era-boundary-ethiopic.js
test262/intl402/Temporal/PlainDateTime/from/extreme-dates.js
test262/intl402/Temporal/PlainDateTime/from/roundtrip-from-string.js
test262/intl402/Temporal/PlainDateTime/from/roundtrip-from-property-bag.js
test262/intl402/DateTimeFormat/prototype/formatToParts/chinese-calendar-dates.js
test262/intl402/DateTimeFormat/prototype/formatToParts/dangi-calendar-dates.js
test262/intl402/DateTimeFormat/prototype/formatRangeToParts/chinese-calendar-dates.js
test262/intl402/DateTimeFormat/prototype/formatRangeToParts/dangi-calendar-dates.js

Comment 1

[André Bargull [:anba]]

There's probably multiple issues here, but it's not obvious how to split it up, so I'll file a single bug to keep track of this for now:

I've added comments to Phabricator to help classifying the failures.

Comment 2

[André Bargull [:anba]]

Fixed through the patch stack from bug 2013845.