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Diffstat (limited to 'js/src/tests/test262/built-ins/FinalizationRegistry/prototype/cleanupSome/cleanup-prevented-with-reference.js')
-rw-r--r-- | js/src/tests/test262/built-ins/FinalizationRegistry/prototype/cleanupSome/cleanup-prevented-with-reference.js | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/FinalizationRegistry/prototype/cleanupSome/cleanup-prevented-with-reference.js b/js/src/tests/test262/built-ins/FinalizationRegistry/prototype/cleanupSome/cleanup-prevented-with-reference.js new file mode 100644 index 0000000000..d8c23a7d1e --- /dev/null +++ b/js/src/tests/test262/built-ins/FinalizationRegistry/prototype/cleanupSome/cleanup-prevented-with-reference.js @@ -0,0 +1,48 @@ +// |reftest| skip-if(!this.hasOwnProperty('FinalizationRegistry')) async -- 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.cleanupSome +description: Cleanup might be prevented with a reference usage; +info: | + FinalizationRegistry.prototype.cleanupSome ( [ callback ] ) + + 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 callback is not undefined and IsCallable(callback) is false, throw a TypeError exception. + 5. Perform ? CleanupFinalizationRegistry(finalizationRegistry, callback). + 6. Return undefined. +features: [FinalizationRegistry.prototype.cleanupSome, FinalizationRegistry, host-gc-required] +includes: [async-gc.js] +flags: [async, non-deterministic] +---*/ + +var holdingsList = []; +function cb(holding) { + holdingsList.push(holding); +}; +var finalizationRegistry = new FinalizationRegistry(function() {}); + +var referenced = {}; + +function emptyCells() { + var target = {}; + finalizationRegistry.register(target, 'target!'); + finalizationRegistry.register(referenced, 'referenced'); + + var prom = asyncGC(target); + target = null; + + return prom; +} + +emptyCells().then(function() { + finalizationRegistry.cleanupSome(cb); + + assert.sameValue(holdingsList.length, 1); + assert.sameValue(holdingsList[0], 'target!'); + + assert.sameValue(typeof referenced, 'object', 'referenced preserved'); +}).then($DONE, resolveAsyncGC); |