1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/wait/bigint/negative-index-throws.js b/js/src/tests/test262/built-ins/Atomics/wait/bigint/negative-index-throws.js
new file mode 100644
index 0000000000..4d976026a1
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Atomics/wait/bigint/negative-index-throws.js
@@ -0,0 +1,42 @@
+// |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.wait
+description: >
+  Throws a RangeError is index < 0
+info: |
+  Atomics.wait( typedArray, index, value, timeout )
+
+  2.Let i be ? ValidateAtomicAccess(typedArray, index).
+    ...
+      2.Let accessIndex be ? ToIndex(requestIndex).
+        ...
+        2.b If integerIndex < 0, throw a RangeError exception
+features: [Atomics, BigInt, SharedArrayBuffer, TypedArray]
+---*/
+
+const i64a = new BigInt64Array(
+  new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 8)
+);
+const poisoned = {
+  valueOf: function() {
+    throw new Test262Error('should not evaluate this code');
+  }
+};
+
+assert.throws(RangeError, function() {
+  Atomics.wait(i64a, -Infinity, poisoned, poisoned);
+}, '`Atomics.wait(i64a, -Infinity, poisoned, poisoned)` throws RangeError');
+assert.throws(RangeError, function() {
+  Atomics.wait(i64a, -7.999, poisoned, poisoned);
+}, '`Atomics.wait(i64a, -7.999, poisoned, poisoned)` throws RangeError');
+assert.throws(RangeError, function() {
+  Atomics.wait(i64a, -1, poisoned, poisoned);
+}, '`Atomics.wait(i64a, -1, poisoned, poisoned)` throws RangeError');
+assert.throws(RangeError, function() {
+  Atomics.wait(i64a, -300, poisoned, poisoned);
+}, '`Atomics.wait(i64a, -300, poisoned, poisoned)` throws RangeError');
+
+reportCompare(0, 0);