mirror of https://github.com/tc39/test262.git
42 lines
1.2 KiB
JavaScript
42 lines
1.2 KiB
JavaScript
// Copyright 2023 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-initializepluralrules
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description: Checks the order of option read.
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features: [Intl.NumberFormat-v3]
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includes: [compareArray.js]
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---*/
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let optionKeys = [
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// Inside InitializePluralRules
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"localeMatcher",
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"type",
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// Inside SetNumberFormatDigitOptions
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"minimumIntegerDigits",
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"minimumFractionDigits",
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"maximumFractionDigits",
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"minimumSignificantDigits",
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"maximumSignificantDigits",
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"roundingIncrement",
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"roundingMode",
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"roundingPriority",
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"trailingZeroDisplay",
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// End of SetNumberFormatDigitOptions
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];
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// Use getters to track the order of reading known properties.
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// TODO: Should we use a Proxy to detect *unexpected* property reads?
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let reads = new Array();
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let options = {};
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optionKeys.forEach((key) => {
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Object.defineProperty(options, key, {
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get() {
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reads.push(key);
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return undefined;
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},
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});
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});
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new Intl.PluralRules(undefined, options);
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assert.compareArray(reads, optionKeys, "Intl.PluralRules options read order");
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