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Diffstat (limited to 'js/src/tests/test262/built-ins/FinalizationRegistry/returns-new-object-from-constructor.js')
-rw-r--r-- | js/src/tests/test262/built-ins/FinalizationRegistry/returns-new-object-from-constructor.js | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/FinalizationRegistry/returns-new-object-from-constructor.js b/js/src/tests/test262/built-ins/FinalizationRegistry/returns-new-object-from-constructor.js new file mode 100644 index 0000000000..86cb020b36 --- /dev/null +++ b/js/src/tests/test262/built-ins/FinalizationRegistry/returns-new-object-from-constructor.js @@ -0,0 +1,42 @@ +// |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-target +description: > + Returns a new ordinary object from the FinalizationRegistry constructor +info: | + FinalizationRegistry ( cleanupCallback ) + + ... + 3. Let finalizationRegistry be ? OrdinaryCreateFromConstructor(NewTarget, "%FinalizationRegistryPrototype%", « [[Realm]], [[CleanupCallback]], [[Cells]], [[IsFinalizationRegistryCleanupJobActive]] »). + ... + 9. Return finalizationRegistry. + + OrdinaryCreateFromConstructor ( constructor, intrinsicDefaultProto [ , internalSlotsList ] ) + + ... + 2. Let proto be ? GetPrototypeFromConstructor(constructor, intrinsicDefaultProto). + 3. Return ObjectCreate(proto, internalSlotsList). +features: [FinalizationRegistry, for-of] +---*/ + +var cleanupCallback = function() {}; +var finalizationRegistry = new FinalizationRegistry(cleanupCallback); + +assert.sameValue(Object.getPrototypeOf(finalizationRegistry), FinalizationRegistry.prototype); +assert.notSameValue(finalizationRegistry, cleanupCallback, 'does not return the same function'); +assert.sameValue(finalizationRegistry instanceof FinalizationRegistry, true, 'instanceof'); + +for (let key of Object.getOwnPropertyNames(finalizationRegistry)) { + assert(false, `should not set any own named properties: ${key}`); +} + +for (let key of Object.getOwnPropertySymbols(finalizationRegistry)) { + assert(false, `should not set any own symbol properties: ${String(key)}`); +} + +assert.sameValue(Object.getPrototypeOf(finalizationRegistry), FinalizationRegistry.prototype); + +reportCompare(0, 0); |