v8/test/intl/number-format/rounding-mode-v3.js
Frank Tang dfab3f44e8 [intl] Part 2 of NumberFormat v3
Change NumberFormat.prototpe.resolvedOptions to return new options in v3.
Also fix a heap allocation assertion bug in GetStringOrBooleanOption
while the useGrouping option is an invalid argument.

https://github.com/tc39/proposal-intl-numberformat-v3

https://chromestatus.com/guide/edit/5707621009981440

Design Doc: https://docs.google.com/document/d/19jAogPBb6W4Samt8NWGZKu47iv0_KoQhBvLgQH3xvr8/edit

Bug: v8:10776
Change-Id: Iaeeb0398b77394db3c941a2706d44b734a1f9d8c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3427298
Reviewed-by: Shu-yu Guo <syg@chromium.org>
Commit-Queue: Frank Tang <ftang@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79161}
2022-02-18 08:47:59 +00:00

61 lines
1.5 KiB
JavaScript

// Copyright 2021 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --harmony-intl-number-format-v3
let validRoundingMode = [
"ceil",
"floor",
"expand",
"halfCeil",
"halfExpand",
"halfFloor",
"halfTrunc",
"halfEven",
"trunc",
];
let invalidRoundingMode = [
"ceiling",
"down",
"Down",
"flooring",
"halfDown",
"halfUp",
"halfup",
"halfeven",
"halfdown",
"half-up",
"half-even",
"half-down",
"up",
"Up",
];
validRoundingMode.forEach(function(roundingMode) {
let nf = new Intl.NumberFormat(undefined, {roundingMode});
assertEquals(roundingMode, nf.resolvedOptions().roundingMode);
});
invalidRoundingMode.forEach(function(roundingMode) {
assertThrows(() => {
let nf = new Intl.NumberFormat(undefined, {roundingMode}); });
});
// Check default is "halfExpand"
assertEquals("halfExpand", (new Intl.NumberFormat().resolvedOptions().roundingMode));
assertEquals("halfExpand", (new Intl.NumberFormat(
undefined, {roundingMode: undefined}).resolvedOptions().roundingMode));
// Check roundingMode is read once after reading signDisplay
let read = [];
let options = {
get signDisplay() { read.push('signDisplay'); return undefined; },
get roundingMode() { read.push('roundingMode'); return undefined; },
};
assertDoesNotThrow(() => new Intl.NumberFormat(undefined, options));
assertEquals("signDisplay,roundingMode", read.join(","));