1 files changed, 48 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/waitAsync/out-of-range-index-throws.js b/js/src/tests/test262/built-ins/Atomics/waitAsync/out-of-range-index-throws.js
new file mode 100644
index 0000000000..72ae3b0fb4
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/waitAsync/out-of-range-index-throws.js
@@ -0,0 +1,48 @@
+// |reftest| skip -- Atomics.waitAsync is not supported
+// Copyright (C) 2020 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-atomics.waitasync
+description: >
+  Throws a RangeError if value of index arg is out of range
+info: |
+  Atomics.waitAsync( typedArray, index, value, timeout )
+
+  1. Return DoWait(async, typedArray, index, value, timeout).
+
+  DoWait ( mode, typedArray, index, value, timeout )
+
+  2. Let i be ? ValidateAtomicAccess(typedArray, index).
+
+    ...
+    2.Let accessIndex be ? ToIndex(requestIndex).
+    ...
+    5. If accessIndex ≥ length, throw a RangeError exception.
+features: [Atomics.waitAsync, SharedArrayBuffer, TypedArray, Atomics]
+---*/
+assert.sameValue(typeof Atomics.waitAsync, 'function', 'The value of `typeof Atomics.waitAsync` is "function"');
+const i32a = new Int32Array(
+  new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)
+);
+
+const poisoned = {
+  valueOf() {
+    throw new Test262Error('should not evaluate this code');
+  }
+};
+
+assert.throws(RangeError, function() {
+  Atomics.waitAsync(i32a, Infinity, poisoned, poisoned);
+}, '`Atomics.waitAsync(i32a, Infinity, poisoned, poisoned)` throws a RangeError exception');
+assert.throws(RangeError, function() {
+  Atomics.waitAsync(i32a, -1, poisoned, poisoned);
+}, '`Atomics.waitAsync(i32a, -1, poisoned, poisoned)` throws a RangeError exception');
+assert.throws(RangeError, function() {
+  Atomics.waitAsync(i32a, 4, poisoned, poisoned);
+}, '`Atomics.waitAsync(i32a, 4, poisoned, poisoned)` throws a RangeError exception');
+assert.throws(RangeError, function() {
+  Atomics.waitAsync(i32a, 200, poisoned, poisoned);
+}, '`Atomics.waitAsync(i32a, 200, poisoned, poisoned)` throws a RangeError exception');
+
+reportCompare(0, 0);