33 lines
1.1 KiB
JavaScript
33 lines
1.1 KiB
JavaScript
// WeakSet surfaces
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var desc = Object.getOwnPropertyDescriptor(this, "WeakSet");
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assertEq(desc.enumerable, false);
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assertEq(desc.configurable, true);
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assertEq(desc.writable, true);
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assertEq(typeof WeakSet, 'function');
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assertEq(Object.keys(WeakSet).length, 0);
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assertEq(WeakSet.length, 0);
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assertEq(WeakSet.name, "WeakSet");
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assertEq(Object.getPrototypeOf(WeakSet.prototype), Object.prototype);
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assertEq(Object.prototype.toString.call(WeakSet.prototype), "[object WeakSet]");
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assertEq(Object.prototype.toString.call(new WeakSet), "[object WeakSet]");
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assertEq(Object.keys(WeakSet.prototype).length, 0);
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assertEq(WeakSet.prototype.constructor, WeakSet);
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function checkMethod(name, arity) {
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var desc = Object.getOwnPropertyDescriptor(WeakSet.prototype, name);
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assertEq(desc.enumerable, false);
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assertEq(desc.configurable, true);
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assertEq(desc.writable, true);
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assertEq(typeof desc.value, 'function');
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assertEq(desc.value.name, name);
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assertEq(desc.value.length, arity);
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}
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checkMethod("has", 1);
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checkMethod("add", 1);
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checkMethod("delete", 1);
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checkMethod("clear", 0);
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