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Diffstat (limited to 'js/src/tests/test262/built-ins/Atomics/compareExchange/validate-arraytype-before-replacementValue-coercion.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Atomics/compareExchange/validate-arraytype-before-replacementValue-coercion.js | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/compareExchange/validate-arraytype-before-replacementValue-coercion.js b/js/src/tests/test262/built-ins/Atomics/compareExchange/validate-arraytype-before-replacementValue-coercion.js new file mode 100644 index 0000000000..065a032809 --- /dev/null +++ b/js/src/tests/test262/built-ins/Atomics/compareExchange/validate-arraytype-before-replacementValue-coercion.js @@ -0,0 +1,40 @@ +// |reftest| skip-if(!this.hasOwnProperty('Atomics')) -- Atomics is not enabled unconditionally +// Copyright (C) 2019 André Bargull. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-atomics.compareExchange +description: > + TypedArray type is validated before `replacementValue` argument is coerced. +info: | + 24.4.4 Atomics.compareExchange ( typedArray, index, expectedValue, replacementValue ) + 1. Let buffer be ? ValidateSharedIntegerTypedArray(typedArray). + ... + + 24.4.1.1 ValidateSharedIntegerTypedArray ( typedArray [ , onlyInt32 ] ) + ... + 4. Let typeName be typedArray.[[TypedArrayName]]. + 5. If onlyInt32 is true, then + a. If typeName is not "Int32Array", throw a TypeError exception. + 6. Else, + a. If typeName is not "Int8Array", "Uint8Array", "Int16Array", "Uint16Array", "Int32Array", + or "Uint32Array", throw a TypeError exception. + ... +includes: [testTypedArray.js] +features: [Atomics, TypedArray] +---*/ + +var replacementValue = { + valueOf() { + throw new Test262Error("replacementValue coerced"); + } +}; + +for (var badArrayType of nonAtomicsFriendlyTypedArrayConstructors) { + var typedArray = new badArrayType(new SharedArrayBuffer(8)); + assert.throws(TypeError, function() { + Atomics.compareExchange(typedArray, 0, 0, replacementValue); + }); +} + +reportCompare(0, 0); |