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// Copyright 2012 Mozilla Corporation. All rights reserved.
// Copyright 2019 Igalia S.L. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-ecmascript-standard-built-in-objects
description: >
Tests that the Intl.DateTimeFormat.prototype.formatRange function meets the
requirements for built-in objects defined by the ECMAScript Language
Specification.
includes: [isConstructor.js]
features: [Reflect.construct,Intl.DateTimeFormat-formatRange]
---*/
const formatRange = Intl.DateTimeFormat.prototype.formatRange;
assert.sameValue(Object.prototype.toString.call(formatRange), "[object Function]",
"The [[Class]] internal property of a built-in function must be " +
"\"Function\".");
assert(Object.isExtensible(formatRange),
"Built-in objects must be extensible.");
assert.sameValue(Object.getPrototypeOf(formatRange), Function.prototype);
assert.sameValue(formatRange.hasOwnProperty("prototype"), false,
"Built-in functions that aren't constructors must not have a prototype property.");
assert.sameValue(isConstructor(formatRange), false,
"Built-in functions don't implement [[Construct]] unless explicitly specified.");
reportCompare(0, 0);
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