27 lines
963 B
JavaScript
27 lines
963 B
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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function checkCtor(global, name, description) {
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ok(Object.isFrozen(global[name]), `${description} ${name} is frozen`);
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ok(
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Object.isSealed(global[name].prototype),
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`${description} ${name}.prototype is sealed`
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);
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let descr = Object.getOwnPropertyDescriptor(global, name);
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ok(!descr.configurable, `${description} ${name} should be non-configurable`);
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ok(!descr.writable, `${description} ${name} should not be writable`);
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}
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function checkGlobal(global, description) {
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checkCtor(global, "Object", description);
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checkCtor(global, "Array", description);
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checkCtor(global, "Function", description);
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}
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add_task(async function () {
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let systemGlobal = Cu.getGlobalForObject(Services);
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checkGlobal(systemGlobal, "system global");
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});
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