1 files changed, 45 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/SharedArrayBuffer/options-maxbytelength-data-allocation-after-object-creation.js b/js/src/tests/test262/built-ins/SharedArrayBuffer/options-maxbytelength-data-allocation-after-object-creation.js
new file mode 100644
index 0000000000..58e9748609
--- /dev/null
+++ b/js/src/tests/test262/built-ins/SharedArrayBuffer/options-maxbytelength-data-allocation-after-object-creation.js
@@ -0,0 +1,45 @@
+// |reftest| shell-option(--enable-arraybuffer-resizable) skip-if(!this.hasOwnProperty('SharedArrayBuffer')||!ArrayBuffer.prototype.resize||!xulRuntime.shell) -- SharedArrayBuffer,resizable-arraybuffer is not enabled unconditionally, requires shell-options
+// Copyright (C) 2024 André Bargull. 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 [ , options ] )
+
+  ...
+  4. Return ? AllocateSharedArrayBuffer(NewTarget, byteLength, requestedMaxByteLength).
+
+  AllocateSharedArrayBuffer( constructor, byteLength )
+
+  ...
+  5. Let obj be ? OrdinaryCreateFromConstructor(constructor, "%SharedArrayBuffer.prototype%", slots).
+  ...
+  7. Let block be ? CreateSharedByteDataBlock(allocLength).
+  ...
+
+features: [SharedArrayBuffer, resizable-arraybuffer, Reflect.construct]
+---*/
+
+function DummyError() {}
+
+let newTarget = Object.defineProperty(function(){}.bind(null), "prototype", {
+  get() {
+    throw new DummyError();
+  }
+});
+
+assert.throws(DummyError, function() {
+  let byteLength = 0;
+  let options = {
+    maxByteLength: 7 * 1125899906842624
+  };
+
+  // Allocating 7 PiB should fail with a RangeError.
+  // Math.pow(1024, 5) = 1125899906842624
+  Reflect.construct(SharedArrayBuffer, [], newTarget);
+});
+
+reportCompare(0, 0);