1 files changed, 30 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/SharedArrayBuffer/prototype/maxByteLength/return-maxbytelength-growable.js b/js/src/tests/test262/built-ins/SharedArrayBuffer/prototype/maxByteLength/return-maxbytelength-growable.js
new file mode 100644
index 0000000000..5611749493
--- /dev/null
+++ b/js/src/tests/test262/built-ins/SharedArrayBuffer/prototype/maxByteLength/return-maxbytelength-growable.js
@@ -0,0 +1,30 @@
+// |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) 2021 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-get-sharedarraybuffer.prototype.maxbytelength
+description: Return value from [[ArrayBufferMaxByteLength]] internal slot
+info: |
+  24.1.4.1 get SharedArrayBuffer.prototype.maxByteLength
+
+  1. Let O be the this value.
+  2. Perform ? RequireInternalSlot(O, [[ArrayBufferData]]).
+  3. If IsSharedArrayBuffer(O) is false, throw a TypeError exception.
+  4. If IsResizableArrayBuffer(O) is true, then
+     a. Let length be O.[[ArrayBufferMaxByteLength]].
+  5. Else,
+     [...]
+  6. Return 𝔽(length).
+features: [SharedArrayBuffer, resizable-arraybuffer]
+---*/
+
+var ab1 = new SharedArrayBuffer(0, { maxByteLength: 0 });
+assert.sameValue(ab1.maxByteLength, 0);
+
+var ab2 = new SharedArrayBuffer(0, { maxByteLength: 23 });
+assert.sameValue(ab2.maxByteLength, 23);
+
+var ab3 = new SharedArrayBuffer(42, { maxByteLength: 42 });
+assert.sameValue(ab3.maxByteLength, 42);
+
+reportCompare(0, 0);