Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 28 insertions, 0 deletions

diff --git a/js/src/tests/test262/language/statements/class/subclass/builtin-objects/ArrayBuffer/regular-subclassing.js b/js/src/tests/test262/language/statements/class/subclass/builtin-objects/ArrayBuffer/regular-subclassing.js
new file mode 100644
index 0000000000..d2b319173a
--- /dev/null
+++ b/js/src/tests/test262/language/statements/class/subclass/builtin-objects/ArrayBuffer/regular-subclassing.js
@@ -0,0 +1,28 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 24.1.2
+description: Subclassing the ArrayBuffer object
+info: |
+  24.1.2 The ArrayBuffer Constructor
+
+  ...
+
+  The ArrayBuffer constructor is designed to be subclassable. It may be used as
+  the value of an extends clause of a class definition. Subclass constructors
+  that intend to inherit the specified ArrayBuffer behaviour must include a
+  super call to the ArrayBuffer constructor to create and initialize subclass
+  instances with the internal state necessary to support the
+  ArrayBuffer.prototype built-in methods.
+---*/
+
+class AB extends ArrayBuffer {}
+
+var ab = new AB(4);
+
+var sliced = ab.slice(0, 1);
+
+assert(sliced instanceof AB);
+assert(sliced instanceof ArrayBuffer);
+
+reportCompare(0, 0);