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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/Atomics/store/expected-return-value-negative-zero.js | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/store/expected-return-value-negative-zero.js b/js/src/tests/test262/built-ins/Atomics/store/expected-return-value-negative-zero.js new file mode 100644 index 0000000000..d49fde2124 --- /dev/null +++ b/js/src/tests/test262/built-ins/Atomics/store/expected-return-value-negative-zero.js @@ -0,0 +1,29 @@ +// |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) 2020 Jordan Harband. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. + +/*--- +esid: sec-atomics.store +description: > + Atomics.store calls ToInteger, which normalizes -0 to +0 +features: [Atomics, SharedArrayBuffer, TypedArray] +---*/ + +const i32a = new Int32Array( + new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4) +); + +assert( + Object.is( + Atomics.store(i32a, 0, -0), + +0 + ), + 'Atomics.store(i32a, 0, -0) normalizes -0 to +0' +); +assert.sameValue( + i32a[0], + +0, + 'The value of i32a[0] is normalized to +0' +); + +reportCompare(0, 0); |