1 files changed, 43 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/notify/negative-index-throws.js b/js/src/tests/test262/built-ins/Atomics/notify/negative-index-throws.js
new file mode 100644
index 0000000000..a6dc837540
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/notify/negative-index-throws.js
@@ -0,0 +1,43 @@
+// |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 Amal Hussein. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-atomics.notify
+description: >
+  Throws a RangeError is index < 0
+info: |
+  Atomics.notify( typedArray, index, count )
+
+  2.Let i be ? ValidateAtomicAccess(typedArray, index).
+    ...
+      2.Let accessIndex be ? ToIndex(requestIndex).
+        ...
+        2.b If integerIndex < 0, throw a RangeError exception
+features: [Atomics, SharedArrayBuffer, TypedArray]
+---*/
+
+const i32a = new Int32Array(
+  new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)
+);
+
+const poisoned = {
+  valueOf: function() {
+    throw new Test262Error('should not evaluate this code');
+  }
+};
+
+assert.throws(RangeError, function() {
+  Atomics.notify(i32a, -Infinity, poisoned);
+}, '`Atomics.notify(i32a, -Infinity, poisoned)` throws RangeError');
+assert.throws(RangeError, function() {
+  Atomics.notify(i32a, -7.999, poisoned);
+}, '`Atomics.notify(i32a, -7.999, poisoned)` throws RangeError');
+assert.throws(RangeError, function() {
+  Atomics.notify(i32a, -1, poisoned);
+}, '`Atomics.notify(i32a, -1, poisoned)` throws RangeError');
+assert.throws(RangeError, function() {
+  Atomics.notify(i32a, -300, poisoned);
+}, '`Atomics.notify(i32a, -300, poisoned)` throws RangeError');
+
+reportCompare(0, 0);