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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/Atomics/notify/negative-count.js | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/notify/negative-count.js b/js/src/tests/test262/built-ins/Atomics/notify/negative-count.js new file mode 100644 index 0000000000..7ed96b1d7f --- /dev/null +++ b/js/src/tests/test262/built-ins/Atomics/notify/negative-count.js @@ -0,0 +1,40 @@ +// |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.notify +description: > + Test that Atomics.notify notifies zero waiters if the count is negative +includes: [atomicsHelper.js] +features: [Atomics, SharedArrayBuffer, TypedArray] +---*/ + +const RUNNING = 1; +const TIMEOUT = $262.agent.timeouts.long; + +$262.agent.start(` + $262.agent.receiveBroadcast(function(sab) { + const i32a = new Int32Array(sab); + Atomics.add(i32a, ${RUNNING}, 1); + + $262.agent.report(Atomics.wait(i32a, 0, 0, ${TIMEOUT})); + $262.agent.leaving(); + }); +`); + +const i32a = new Int32Array( + new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4) +); + +$262.agent.safeBroadcast(i32a); +$262.agent.waitUntil(i32a, RUNNING, 1); + +// Try to yield control to ensure the agent actually started to wait. +$262.agent.tryYield(); + +assert.sameValue(Atomics.notify(i32a, 0, -1), 0, 'Atomics.notify(i32a, 0, -1) returns 0'); // Don't actually notify it + +assert.sameValue($262.agent.getReport(), 'timed-out', '$262.agent.getReport() returns "timed-out"'); + +reportCompare(0, 0); |