// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
info: >
    Step 4 of defineProperty calls the [[DefineOwnProperty]] internal method
    of O to define the property. For configurable properties, step 9b of
    [[DefineOwnProperty]] permits changing the kind of a property.
es5id: 15.2.3.6-4-14
description: >
    Object.defineProperty permits changing data property to accessor
    property for configurable properties
includes: [runTestCase.js]
---*/

function testcase() {
  var o = {};

  // create a data property. In this case,
  // [[Enumerable]] and [[Configurable]] are true
  o["foo"] = 101;

  // changing "foo" to be an accessor should succeed, since [[Configurable]]
  // on the original property will be true. Existing values of [[Configurable]]
  // and [[Enumerable]] need to be preserved and the rest need to be set to
  // their default values

  // dummy getter
  var getter = function () { return 1; }
  var d1 = { get: getter };
  Object.defineProperty(o, "foo", d1);

  var d2 = Object.getOwnPropertyDescriptor(o, "foo");

  if (d2.get === getter &&
      d2.enumerable === true &&
      d2.configurable === true) {
    return true;
  }
 }
runTestCase(testcase);