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-rw-r--r--js/src/tests/test262/built-ins/Atomics/notify/count-from-nans.js36
1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/notify/count-from-nans.js b/js/src/tests/test262/built-ins/Atomics/notify/count-from-nans.js
new file mode 100644
index 0000000000..a8361fd5ed
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+++ b/js/src/tests/test262/built-ins/Atomics/notify/count-from-nans.js
@@ -0,0 +1,36 @@
+// |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.notify
+description: >
+ NaNs are converted to 0 for 'count' argument to Atomics.notify
+info: |
+ Atomics.notify( typedArray, index, count )
+
+ ...
+ 3. If count is undefined, let c be +∞.
+ 4. Else,
+ a. Let intCount be ? ToInteger(count).
+ ...
+
+ ToInteger ( argument )
+
+ ...
+ 2. If number is NaN, return +0.
+ ...
+
+includes: [nans.js]
+features: [Atomics, SharedArrayBuffer, TypedArray]
+---*/
+
+const i32a = new Int32Array(
+ new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)
+);
+
+NaNs.forEach(nan => {
+ assert.sameValue(Atomics.notify(i32a, 0, nan), 0, 'Atomics.notify(i32a, 0, nan) returns 0');
+});
+
+reportCompare(0, 0);