diff options
Diffstat (limited to 'js/src/tests/test262/built-ins/FinalizationRegistry/prototype/register/unregisterToken-same-as-holdings-and-target.js')
-rw-r--r-- | js/src/tests/test262/built-ins/FinalizationRegistry/prototype/register/unregisterToken-same-as-holdings-and-target.js | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/FinalizationRegistry/prototype/register/unregisterToken-same-as-holdings-and-target.js b/js/src/tests/test262/built-ins/FinalizationRegistry/prototype/register/unregisterToken-same-as-holdings-and-target.js new file mode 100644 index 0000000000..a3ed546406 --- /dev/null +++ b/js/src/tests/test262/built-ins/FinalizationRegistry/prototype/register/unregisterToken-same-as-holdings-and-target.js @@ -0,0 +1,30 @@ +// |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.register +description: unregisterToken may be the same as holdings and target +info: | + FinalizationRegistry.prototype.register ( target , holdings [, unregisterToken ] ) + + 1. Let finalizationRegistry be the this value. + 2. If Type(finalizationRegistry) is not Object, throw a TypeError exception. + 3. If finalizationRegistry does not have a [[Cells]] internal slot, throw a TypeError exception. + 4. If Type(target) is not Object, throw a TypeError exception. + 5. If SameValue(target, holdings), throw a TypeError exception. + 6. If Type(unregisterToken) is not Object, + a. If unregisterToken is not undefined, throw a TypeError exception. + b. Set unregisterToken to empty. + 7. Let cell be the Record { [[Target]] : target, [[Holdings]]: holdings, [[UnregisterToken]]: unregisterToken }. + 8. Append cell to finalizationRegistry.[[Cells]]. + 9. Return undefined. +features: [FinalizationRegistry] +---*/ + +var finalizationRegistry = new FinalizationRegistry(function() {}); + +var target = {}; +assert.throws(TypeError, () => finalizationRegistry.register(target, target, target)); + +reportCompare(0, 0); |