1 files changed, 40 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/SharedArrayBuffer/data-allocation-after-object-creation.js b/js/src/tests/test262/built-ins/SharedArrayBuffer/data-allocation-after-object-creation.js
new file mode 100644
index 0000000000..3161137b22
--- /dev/null
+++ b/js/src/tests/test262/built-ins/SharedArrayBuffer/data-allocation-after-object-creation.js
@@ -0,0 +1,40 @@
+// |reftest| skip-if(!this.hasOwnProperty('SharedArrayBuffer')) -- SharedArrayBuffer is not enabled unconditionally
+// Copyright (C) 2015 André Bargull. All rights reserved.
+// Copyright (C) 2017 Mozilla Corporation. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-sharedarraybuffer-length
+description: >
+  The new SharedArrayBuffer instance is created prior to allocating the Data Block.
+info: |
+  SharedArrayBuffer( length )
+
+  ...
+  3. Return AllocateSharedArrayBuffer(NewTarget, byteLength).
+
+  AllocateSharedArrayBuffer( constructor, byteLength )
+    1. Let obj be ? OrdinaryCreateFromConstructor(constructor, "%SharedArrayBufferPrototype%",
+       «[[ArrayBufferData]], [[ArrayBufferByteLength]]» ).
+    ...
+    3. Let block be ? CreateByteDataBlock(byteLength).
+    ...
+features: [SharedArrayBuffer, Reflect.construct]
+---*/
+
+function DummyError() {}
+
+var newTarget = function() {}.bind(null);
+Object.defineProperty(newTarget, "prototype", {
+  get: function() {
+    throw new DummyError();
+  }
+});
+
+assert.throws(DummyError, function() {
+  // Allocating 7 PiB should fail with a RangeError.
+  // Math.pow(1024, 5) = 1125899906842624
+  Reflect.construct(SharedArrayBuffer, [7 * 1125899906842624], newTarget);
+});
+
+reportCompare(0, 0);