1 files changed, 46 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/waitAsync/bigint/negative-index-throws.js b/js/src/tests/test262/built-ins/Atomics/waitAsync/bigint/negative-index-throws.js
new file mode 100644
index 0000000000..0618a9aa71
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/waitAsync/bigint/negative-index-throws.js
@@ -0,0 +1,46 @@
+// |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 is index < 0
+info: |
+  Atomics.waitAsync( typedArray, index, value, timeout )
+
+  1. Return DoWait(async, typedArray, index, value, timeout).
+
+  DoWait ( mode, typedArray, index, value, timeout )
+
+  1. Let buffer be ? ValidateSharedIntegerTypedArray(typedArray, true).
+  2. Let i be ? ValidateAtomicAccess(typedArray, index).
+
+features: [Atomics.waitAsync, SharedArrayBuffer, TypedArray, Atomics, BigInt]
+---*/
+assert.sameValue(typeof Atomics.waitAsync, 'function', 'The value of `typeof Atomics.waitAsync` is "function"');
+const i64a = new BigInt64Array(
+  new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4)
+);
+
+const poisoned = {
+  valueOf() {
+    throw new Test262Error('should not evaluate this code');
+  }
+};
+
+assert.throws(RangeError, function() {
+  Atomics.waitAsync(i64a, -Infinity, poisoned, poisoned);
+}, '`Atomics.waitAsync(i64a, -Infinity, poisoned, poisoned)` throws a RangeError exception');
+assert.throws(RangeError, function() {
+  Atomics.waitAsync(i64a, -7.999, poisoned, poisoned);
+}, '`Atomics.waitAsync(i64a, -7.999, poisoned, poisoned)` throws a RangeError exception');
+assert.throws(RangeError, function() {
+  Atomics.waitAsync(i64a, -1, poisoned, poisoned);
+}, '`Atomics.waitAsync(i64a, -1, poisoned, poisoned)` throws a RangeError exception');
+assert.throws(RangeError, function() {
+  Atomics.waitAsync(i64a, -300, poisoned, poisoned);
+}, '`Atomics.waitAsync(i64a, -300, poisoned, poisoned)` throws a RangeError exception');
+
+
+reportCompare(0, 0);