Measured 2026-06-23 on an internal Linux sweep host (perry 0.5.1204, node v26.3.0); persistent standing gap (the 2026-06-23 regression #5579 excluded). Split from now-closed umbrella #5344. See test-compat/test262/README.md.
63 failing (test262 @ 2026-06-23 sweep).
Top reasons
| n |
reason |
| 7 |
Expected a TypeError (newtarget/locales/options validation) |
| 6 |
format: duration must be an object |
| 5 |
format output for style |
| 3 |
digital/long/narrow style length |
Sample tests
intl402/DurationFormat/constructor-locales-invalid.js
intl402/DurationFormat/newtarget-undefined.js
intl402/DurationFormat/constructor-options-order.js
intl402/DurationFormat/prototype/format/duration-out-of-range-3.js
Measure
scripts/test262_subset.py --root /root/test262 --dir intl402/DurationFormat --jobs 6
Measured 2026-06-23 on an internal Linux sweep host (perry 0.5.1204, node v26.3.0); persistent standing gap (the 2026-06-23 regression #5579 excluded). Split from now-closed umbrella #5344. See
test-compat/test262/README.md.63 failing (test262 @ 2026-06-23 sweep).
Top reasons
Expected a TypeError(newtarget/locales/options validation)format: duration must be an objectSample tests
Measure