1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/exchange/non-shared-bufferdata.js b/js/src/tests/test262/built-ins/Atomics/exchange/non-shared-bufferdata.js
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+++ b/js/src/tests/test262/built-ins/Atomics/exchange/non-shared-bufferdata.js
@@ -0,0 +1,21 @@
+// |reftest| skip-if(!this.hasOwnProperty('Atomics')) -- Atomics is not enabled unconditionally
+// Copyright (C) 2020 Rick Waldron.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-atomics.exchange
+description: >
+  Atomics.exchange will operate on TA when TA.buffer is not a SharedArrayBuffer
+includes: [testTypedArray.js]
+features: [ArrayBuffer, Atomics, TypedArray]
+---*/
+testWithAtomicsFriendlyTypedArrayConstructors(TA => {
+  const view = new TA(
+    new ArrayBuffer(TA.BYTES_PER_ELEMENT * 4)
+  );
+
+  assert.sameValue(Atomics.exchange(view, 0, 1), 0, 'Atomics.exchange(view, 0, 1) returns 0');
+  assert.sameValue(Atomics.load(view, 0), 1, 'Atomics.load(view, 0) returns 1');
+});
+
+reportCompare(0, 0);