| // Copyright 2016 Mozilla Corporation. All rights reserved. |
| // This code is governed by the license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-Intl.PluralRules.supportedLocalesOf |
| description: > |
| Tests that Intl.PluralRules.supportedLocalesOf meets the requirements for |
| built-in objects defined by the introduction of chapter 17 of the |
| ECMAScript Language Specification. |
| author: Zibi Braniecki |
| includes: [isConstructor.js] |
| features: [Reflect.construct] |
| ---*/ |
| |
| assert.sameValue(Object.prototype.toString.call(Intl.PluralRules.supportedLocalesOf), "[object Function]", |
| "The [[Class]] internal property of a built-in function must be " + |
| "\"Function\"."); |
| |
| assert(Object.isExtensible(Intl.PluralRules.supportedLocalesOf), |
| "Built-in objects must be extensible."); |
| |
| assert.sameValue(Object.getPrototypeOf(Intl.PluralRules.supportedLocalesOf), Function.prototype); |
| |
| assert.sameValue(Intl.PluralRules.supportedLocalesOf.hasOwnProperty("prototype"), false, |
| "Built-in functions that aren't constructors must not have a prototype property."); |
| |
| assert.sameValue(isConstructor(Intl.PluralRules.supportedLocalesOf), false, |
| "Built-in functions don't implement [[Construct]] unless explicitly specified."); |