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+// Copyright 2010 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// This file only tests very simple descriptors that always have
+// configurable, enumerable, and writable set to true.
+// A range of more elaborate tests are performed in
+// object-define-property.js
+
+// Flags: --stress-runs=5
+
+function get() { return x; }
+function set(x) { this.x = x; }
+
+var obj = {x: 1};
+obj.__defineGetter__("accessor", get);
+obj.__defineSetter__("accessor", set);
+var a = new Array();
+a[1] = 42;
+obj[1] = 42;
+
+var descIsData = Object.getOwnPropertyDescriptor(obj, 'x');
+assertTrue(descIsData.enumerable);
+assertTrue(descIsData.writable);
+assertTrue(descIsData.configurable);
+
+var descIsAccessor = Object.getOwnPropertyDescriptor(obj, 'accessor');
+assertTrue(descIsAccessor.enumerable);
+assertTrue(descIsAccessor.configurable);
+assertTrue(descIsAccessor.get == get);
+assertTrue(descIsAccessor.set == set);
+
+var descIsNotData = Object.getOwnPropertyDescriptor(obj, 'not-x');
+assertTrue(descIsNotData == undefined);
+
+var descIsNotAccessor = Object.getOwnPropertyDescriptor(obj, 'not-accessor');
+assertTrue(descIsNotAccessor == undefined);
+
+var descArray = Object.getOwnPropertyDescriptor(a, '1');
+assertTrue(descArray.enumerable);
+assertTrue(descArray.configurable);
+assertTrue(descArray.writable);
+assertEquals(descArray.value, 42);
+
+var descObjectElement = Object.getOwnPropertyDescriptor(obj, '1');
+assertTrue(descObjectElement.enumerable);
+assertTrue(descObjectElement.configurable);
+assertTrue(descObjectElement.writable);
+assertEquals(descObjectElement.value, 42);
+
+// String objects.
+var a = new String('foobar');
+for (var i = 0; i < a.length; i++) {
+  var descStringObject = Object.getOwnPropertyDescriptor(a, i);
+  assertTrue(descStringObject.enumerable);
+  assertFalse(descStringObject.configurable);
+  assertFalse(descStringObject.writable);
+  assertEquals(descStringObject.value, a.substring(i, i+1));
+}
+
+// Support for additional attributes on string objects.
+a.x = 42;
+a[10] = 'foo';
+var descStringProperty = Object.getOwnPropertyDescriptor(a, 'x');
+assertTrue(descStringProperty.enumerable);
+assertTrue(descStringProperty.configurable);
+assertTrue(descStringProperty.writable);
+assertEquals(descStringProperty.value, 42);
+
+var descStringElement = Object.getOwnPropertyDescriptor(a, '10');
+assertTrue(descStringElement.enumerable);
+assertTrue(descStringElement.configurable);
+assertTrue(descStringElement.writable);
+assertEquals(descStringElement.value, 'foo');
+
+// Test that elements in the prototype chain is not returned.
+var proto = {};
+proto[10] = 42;
+
+var objWithProto = new Array();
+objWithProto.prototype = proto;
+objWithProto[0] = 'bar';
+var descWithProto = Object.getOwnPropertyDescriptor(objWithProto, '10');
+assertEquals(undefined, descWithProto);
+
+// Test elements on global proxy object.
+var global = (function() { return this; })();
+
+global[42] = 42;
+
+function el_getter() { return 239; };
+function el_setter() {};
+Object.defineProperty(global, '239', {get: el_getter, set: el_setter});
+
+var descRegularElement = Object.getOwnPropertyDescriptor(global, '42');
+assertEquals(42, descRegularElement.value);
+
+var descAccessorElement = Object.getOwnPropertyDescriptor(global, '239');
+assertEquals(el_getter, descAccessorElement.get);
+assertEquals(el_setter, descAccessorElement.set);