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Diffstat (limited to 'js/src/tests/test262/built-ins/Atomics/compareExchange/bigint/good-views.js')
-rw-r--r-- | js/src/tests/test262/built-ins/Atomics/compareExchange/bigint/good-views.js | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/compareExchange/bigint/good-views.js b/js/src/tests/test262/built-ins/Atomics/compareExchange/bigint/good-views.js new file mode 100644 index 0000000000..1ecc88ce13 --- /dev/null +++ b/js/src/tests/test262/built-ins/Atomics/compareExchange/bigint/good-views.js @@ -0,0 +1,94 @@ +// |reftest| skip-if(!this.hasOwnProperty('Atomics')||!this.hasOwnProperty('SharedArrayBuffer')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration()['arm64-simulator'])) -- Atomics,SharedArrayBuffer is not enabled unconditionally, ARM64 Simulator cannot emulate atomics +// Copyright (C) 2018 Rick Waldron. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-atomics.compareexchange +description: Test Atomics.compareExchange on arrays that allow atomic operations. +includes: [testAtomics.js, testBigIntTypedArray.js] +features: [ArrayBuffer, Atomics, BigInt, DataView, SharedArrayBuffer, Symbol, TypedArray] +---*/ +const sab = new SharedArrayBuffer(1024); +const ab = new ArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 2); + +testWithBigIntTypedArrayConstructors(function(TA) { + const view = new TA(sab, 32, 20); + const control = new TA(ab, 0, 2); + view[8] = 0n; + + assert.sameValue( + Atomics.compareExchange(view, 8, 0n, 10n), + 0n, + 'Atomics.compareExchange(view, 8, 0n, 10n) returns 0n' + ); + + assert.sameValue(view[8], 10n, 'The value of view[8] is 10n'); + view[8] = 0n; + + assert.sameValue( + Atomics.compareExchange(view, 8, 1n, 10n), + 0n, + 'Atomics.compareExchange(view, 8, 1n, 10n) returns 0n' + ); + + assert.sameValue(view[8], 0n, 'The value of view[8] is 0n'); + view[8] = 0n; + + assert.sameValue( + Atomics.compareExchange(view, 8, 0n, -5n), + 0n, + 'Atomics.compareExchange(view, 8, 0n, -5n) returns 0n' + ); + + control[0] = -5n; + + assert.sameValue( + view[8], + control[0], + 'The value of view[8] equals the value of `control[0]` (-5n)' + ); + + view[3] = -5n; + control[0] = -5n; + + assert.sameValue( + Atomics.compareExchange(view, 3, -5n, 0n), + control[0], + 'Atomics.compareExchange(view, 3, -5n, 0n) returns the value of `control[0]` (-5n)' + ); + + assert.sameValue(view[3], 0n, 'The value of view[3] is 0n'); + control[0] = 12345n; + view[3] = 12345n; + + assert.sameValue( + Atomics.compareExchange(view, 3, 12345n, 0n), + control[0], + 'Atomics.compareExchange(view, 3, 12345n, 0n) returns the value of `control[0]` (12345n)' + ); + + assert.sameValue(view[3], 0n, 'The value of view[3] is 0n'); + control[0] = 123456789n; + view[3] = 123456789n; + + assert.sameValue( + Atomics.compareExchange(view, 3, 123456789n, 0n), + control[0], + 'Atomics.compareExchange(view, 3, 123456789n, 0n) returns the value of `control[0]` (123456789n)' + ); + + assert.sameValue(view[3], 0n, 'The value of view[3] is 0n'); + + testWithAtomicsInBoundsIndices(function(IdxGen) { + let Idx = IdxGen(view); + view.fill(0n); + Atomics.store(view, Idx, 37n); + + assert.sameValue( + Atomics.compareExchange(view, Idx, 37n, 0n), + 37n, + 'Atomics.compareExchange(view, Idx, 37n, 0n) returns 37n' + ); + }); +}); + +reportCompare(0, 0); |