1 files changed, 55 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Atomics/store/bigint/good-views.js b/js/src/tests/test262/built-ins/Atomics/store/bigint/good-views.js
new file mode 100644
index 0000000000..c4d2dff00b
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+++ b/js/src/tests/test262/built-ins/Atomics/store/bigint/good-views.js
@@ -0,0 +1,55 @@
+// |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 Rick Waldron. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-atomics.store
+description: Test Atomics.store on arrays that allow atomic operations.
+includes: [testAtomics.js, testBigIntTypedArray.js]
+features: [ArrayBuffer, Atomics, BigInt, DataView, SharedArrayBuffer, Symbol, TypedArray]
+---*/
+// Make it interesting - use non-zero byteOffsets and non-zero indexes.
+// In-bounds boundary cases for indexing
+const sab = new SharedArrayBuffer(1024);
+const ab = new ArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 2);
+
+testWithBigIntTypedArrayConstructors(function(TA) {
+  const view = new TA(sab, 32, 20);
+  const control = new TA(ab, 0, 2);
+
+  const values = [
+    10n,
+    -5n,
+    12345n,
+    123456789n,
+    BigInt('33'),
+    {
+      valueOf: function() { return 33n; }
+    }
+  ];
+
+  for (let i = 0; i < values.length; i++) {
+    let val = values[i];
+    assert.sameValue(
+      Atomics.store(view, 3, val),
+      BigInt(val),
+      'Atomics.store(view, 3, val) returns BigInt(val)'
+    );
+
+    control[0] = val;
+
+    assert.sameValue(
+      view[3],
+      control[0],
+      'The value of view[3] equals the value of `control[0]` (val)'
+    );
+  }
+
+  testWithAtomicsInBoundsIndices(function(IdxGen) {
+    let Idx = IdxGen(view);
+    view.fill(0n);
+    Atomics.store(view, Idx, 37n);
+    assert.sameValue(Atomics.load(view, Idx), 37n, 'Atomics.load(view, Idx) returns 37n');
+  });
+});
+
+reportCompare(0, 0);