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/// Copyright (c) 2009 Microsoft Corporation
///
/// 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 Microsoft 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.
/*
Step 4 of defineProperty calls the [[DefineOwnProperty]] internal method
of O to define the property. For configurable properties, step 9c of
[[DefineOwnProperty]] permits changing the kind of a property.
*/
ES5Harness.registerTest( {
id: "15.2.3.6-4-15",
path: "TestCases/chapter15/15.2/15.2.3/15.2.3.6/15.2.3.6-4-15.js",
description: "Object.defineProperty permits changing accessor property to data property for configurable properties",
test: function testcase() {
var o = {};
// define an accessor property
// dummy getter
var getter = function () { return 1; }
var d1 = { get: getter, configurable: true };
Object.defineProperty(o, "foo", d1);
// changing "foo" to be a data valued property 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.
var desc = { value: 101 };
Object.defineProperty(o, "foo", desc);
var d2 = Object.getOwnPropertyDescriptor(o, "foo");
if (d2.value === 101 &&
d2.writable === false &&
d2.enumerable === false &&
d2.configurable === true) {
return true;
}
},
precondition: function prereq() {
return fnExists(Object.defineProperty) && fnExists(Object.getOwnPropertyDescriptor);
}
});
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