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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.
/*
This test is actually testing the [[Delete]] internal method (8.12.8). Since the
language provides no way to directly exercise [[Delete]], the tests are placed here.
*/
ES5Harness.registerTest( {
id: "11.4.1-4.a-3",
path: "TestCases/chapter11/11.4/11.4.1/11.4.1-4.a-3.js",
description: "delete operator returns false when deleting a non-configurable data property",
test: function testcase() {
var o = {};
var desc = { value : 1, configurable: false }; // all other attributes default to false
Object.defineProperty(o, "foo", desc);
// Now, deleting o.foo should fail because [[Configurable]] on foo is false.
var d = delete o.foo;
if (d === false && o.hasOwnProperty("foo") === true) {
return true;
}
},
precondition: function prereq() {
return (fnExists(Object.defineProperty) && fnExists(Object.hasOwnProperty));
}
});
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