| // Copyright (C) 2019 Leo Balter. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-finalization-group.prototype.register |
| description: Throws a TypeError if target is not an Object |
| info: | |
| FinalizationGroup.prototype.register ( target , holdings [, unregisterToken ] ) |
| |
| 1. Let finalizationGroup be the this value. |
| 2. If Type(finalizationGroup) is not Object, throw a TypeError exception. |
| 3. If Type(target) is not Object, throw a TypeError exception. |
| 4. If finalizationGroup does not have a [[Cells]] internal slot, throw a TypeError exception. |
| 5. If Type(unregisterToken) is not Object, |
| a. If unregisterToken is not undefined, throw a TypeError exception. |
| b. Set unregisterToken to empty. |
| ... |
| features: [FinalizationGroup] |
| ---*/ |
| |
| assert.sameValue(typeof FinalizationGroup.prototype.register, 'function'); |
| |
| var fg = new FinalizationGroup(function() {}); |
| |
| assert.throws(TypeError, function() { |
| fg.register(undefined); |
| }, 'undefined'); |
| |
| assert.throws(TypeError, function() { |
| fg.register(null); |
| }, 'null'); |
| |
| assert.throws(TypeError, function() { |
| fg.register(true); |
| }, 'true'); |
| |
| assert.throws(TypeError, function() { |
| fg.register(false); |
| }, 'false'); |
| |
| assert.throws(TypeError, function() { |
| fg.register(1); |
| }, 'number'); |
| |
| assert.throws(TypeError, function() { |
| fg.register('object'); |
| }, 'string'); |
| |
| var s = Symbol(); |
| assert.throws(TypeError, function() { |
| fg.register(s); |
| }, 'symbol'); |