mirror of https://github.com/tc39/test262.git
42 lines
926 B
JavaScript
42 lines
926 B
JavaScript
// Copyright (C) 2018 Ujjwal Sharma. 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-initializenumberformat
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description: >
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Tests that Get(O, P) and ToString(arg) are properly called within the
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constructor for Intl.NumberFormat
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info: |
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9.2.1 CanonicalizeLocaleList ( locales )
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5. Let len be ? ToLength(? Get(O, "length")).
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7.a. Let Pk be ToString(k).
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7.c.i. Let kValue be ? Get(O, Pk).
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---*/
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const locales = {
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length: 8,
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1: 'en-US',
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3: 'de-DE',
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5: 'en-IN',
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7: 'en-GB'
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};
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const actualLookups = [];
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const expectedLookups = Object.keys(locales);
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const handlers = {
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get(obj, prop) {
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actualLookups.push(prop);
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return Reflect.get(...arguments);
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}
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};
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const proxyLocales = new Proxy(locales, handlers);
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const nf = new Intl.NumberFormat(proxyLocales);
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expectedLookups.forEach(lookup => assert(actualLookups.indexOf(lookup) != -1));
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