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// |reftest| skip-if(!this.hasOwnProperty('FinalizationRegistry')) -- FinalizationRegistry is not enabled unconditionally
// Copyright (C) 2019 Leo Balter. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-finalization-registry.prototype.unregister
description: Throws a TypeError if unregisterToken cannot be held weakly
info: |
FinalizationRegistry.prototype.unregister ( _unregisterToken_ )
3. If CanBeHeldWeakly(_unregisterToken_) is *false*, throw a *TypeError* exception.
features: [FinalizationRegistry]
---*/
assert.sameValue(typeof FinalizationRegistry.prototype.unregister, 'function');
var finalizationRegistry = new FinalizationRegistry(function() {});
assert.throws(TypeError, function() {
finalizationRegistry.unregister(undefined);
}, 'undefined');
assert.throws(TypeError, function() {
finalizationRegistry.unregister(null);
}, 'null');
assert.throws(TypeError, function() {
finalizationRegistry.unregister(true);
}, 'true');
assert.throws(TypeError, function() {
finalizationRegistry.unregister(false);
}, 'false');
assert.throws(TypeError, function() {
finalizationRegistry.unregister(1);
}, 'number');
assert.throws(TypeError, function() {
finalizationRegistry.unregister('object');
}, 'string');
var s = Symbol.for('registered symbol');
assert.throws(TypeError, function() {
finalizationRegistry.unregister(s);
}, 'registered symbol');
reportCompare(0, 0);
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