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// Copyright 2011 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
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//
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// This regression tests that we are not allowed to overwrite an existing
// non-configurable getter with a new getter. In addition, we should not
// be able to change the configurable flag from false to true.
var a = {};
Object.defineProperty(a, 'b',
{ get: function () { return 42; }, configurable: false });
// Do not allow us to redefine b on a.
a.__defineGetter__('b', function _b(){ return 'foo'; });
assertEquals(42, a.b);
var desc = Object.getOwnPropertyDescriptor(a, 'b');
assertFalse(desc.configurable);