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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /js/src/tests/test262/built-ins/FinalizationRegistry/prototype/register/return-undefined-register-object.js | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/test262/built-ins/FinalizationRegistry/prototype/register/return-undefined-register-object.js')
-rw-r--r-- | js/src/tests/test262/built-ins/FinalizationRegistry/prototype/register/return-undefined-register-object.js | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/FinalizationRegistry/prototype/register/return-undefined-register-object.js b/js/src/tests/test262/built-ins/FinalizationRegistry/prototype/register/return-undefined-register-object.js new file mode 100644 index 0000000000..b185a37113 --- /dev/null +++ b/js/src/tests/test262/built-ins/FinalizationRegistry/prototype/register/return-undefined-register-object.js @@ -0,0 +1,46 @@ +// |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: Return undefined after registering an Object +info: | + FinalizationRegistry.prototype.register ( _target_ , _heldValue_ [, _unregisterToken_ ] ) + 1. Let _finalizationRegistry_ be the *this* value. + 2. Perform ? RequireInternalSlot(_finalizationRegistry_, [[Cells]]). + 3. If CanBeHeldWeakly(_target_) is *false*, throw a *TypeError* exception. + 4. If SameValue(_target_, _heldValue_) is *true*, throw a *TypeError* + exception. + 5. If CanBeHeldWeakly(_unregisterToken_) is *false*, + a. If _unregisterToken_ is not *undefined*, throw a *TypeError* exception. + b. Set _unregisterToken_ to ~empty~. + 6. Let _cell_ be the Record { [[WeakRefTarget]]: _target_, [[HeldValue]]: + _heldValue_, [[UnregisterToken]]: _unregisterToken_ }. + 7. Append _cell_ to _finalizationRegistry_.[[Cells]]. + 8. Return *undefined*. +features: [FinalizationRegistry] +---*/ + +var fn = function() {}; +var finalizationRegistry = new FinalizationRegistry(fn); + +var target = {}; +assert.sameValue(finalizationRegistry.register(target), undefined, 'Register a target'); +assert.sameValue(finalizationRegistry.register(target), undefined, 'Register the same target again'); +assert.sameValue(finalizationRegistry.register(target), undefined, 'Register the same target again and again'); + +assert.sameValue(finalizationRegistry.register({}), undefined, 'Register other targets'); + +assert.sameValue(finalizationRegistry.register(target, undefined, {}), undefined, 'Register target with unregisterToken'); +assert.sameValue( + finalizationRegistry.register(target, undefined, target), + undefined, + 'Register target with unregisterToken being the registered target' +); + +assert.sameValue(finalizationRegistry.register(target, undefined, undefined), undefined, 'Register target with explicit undefined unregisterToken'); + +assert.sameValue(finalizationRegistry.register(fn), undefined, 'register the cleanup callback fn'); + +reportCompare(0, 0); |