1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/tests/non262/Array/redefine-length-accessor.js b/js/src/tests/non262/Array/redefine-length-accessor.js
new file mode 100644
index 0000000000..339a3dd0fa
--- /dev/null
+++ b/js/src/tests/non262/Array/redefine-length-accessor.js
@@ -0,0 +1,42 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+var absent = {};
+
+var getterValues = [absent, undefined, function(){}];
+var setterValues = [absent, undefined, function(){}];
+var configurableValues = [absent, true, false];
+var enumerableValues = [absent, true, false];
+
+function CreateDescriptor(getter, setter, enumerable, configurable) {
+  var descriptor = {};
+  if (getter !== absent)
+    descriptor.get = getter;
+  if (setter !== absent)
+    descriptor.set = setter;
+  if (configurable !== absent)
+    descriptor.configurable = configurable;
+  if (enumerable !== absent)
+    descriptor.enumerable = enumerable;
+  return descriptor;
+}
+
+getterValues.forEach(function(getter) {
+  setterValues.forEach(function(setter) {
+    enumerableValues.forEach(function(enumerable) {
+      configurableValues.forEach(function(configurable) {
+        var descriptor = CreateDescriptor(getter, setter, enumerable, configurable);
+        if (!("get" in descriptor || "set" in descriptor))
+          return;
+
+        assertThrowsInstanceOf(function() {
+          Object.defineProperty([], "length", descriptor);
+        }, TypeError);
+      });
+    });
+  });
+});
+
+if (typeof reportCompare === "function")
+  reportCompare(0, 0);