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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/Atomics/store/good-views.js | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/store/good-views.js b/js/src/tests/test262/built-ins/Atomics/store/good-views.js new file mode 100644 index 0000000000..0248022db9 --- /dev/null +++ b/js/src/tests/test262/built-ins/Atomics/store/good-views.js @@ -0,0 +1,71 @@ +// |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) 2017 Mozilla Corporation. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-atomics.store +description: Test Atomics.store on arrays that allow atomic operations. +includes: [testAtomics.js, testTypedArray.js] +features: [ArrayBuffer, Atomics, DataView, SharedArrayBuffer, Symbol, TypedArray] +---*/ + +const sab = new SharedArrayBuffer(1024); +const ab = new ArrayBuffer(16); +const views = intArrayConstructors.slice(); + +testWithTypedArrayConstructors(function(TA) { + // Make it interesting - use non-zero byteOffsets and non-zero indexes. + + const view = new TA(sab, 32, 20); + const control = new TA(ab, 0, 2); + + const values = [ + 10, + -5, + 12345, + 123456789, + Math.PI, + "33", + { + valueOf: function() { return 33; } + }, + undefined + ]; + + for (let i = 0; i < values.length; i++) { + let val = values[i]; + assert.sameValue(Atomics.store(view, 3, val), ToInteger(val), + 'Atomics.store(view, 3, val) returns ToInteger(val)'); + + control[0] = val; + assert.sameValue( + view[3], + control[0], + 'The value of view[3] equals the value of `control[0]` (val)' + ); + } + + // In-bounds boundary cases for indexing + testWithAtomicsInBoundsIndices(function(IdxGen) { + let Idx = IdxGen(view); + view.fill(0); + Atomics.store(view, Idx, 37); + assert.sameValue(Atomics.load(view, Idx), 37, 'Atomics.load(view, Idx) returns 37'); + }); +}, views); + +function ToInteger(v) { + v = +v; + if (isNaN(v)) { + return 0; + } + if (v == 0 || !isFinite(v)) { + return v; + } + if (v < 0) { + return -Math.floor(Math.abs(v)); + } + return Math.floor(v); +} + +reportCompare(0, 0); |