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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.
ES5Harness.registerTest({
id: "15.4.4.20-9-b-8",
path: "TestCases/chapter15/15.4/15.4.4/15.4.4.20/15.4.4.20-9-b-8.js",
description: "Array.prototype.filter - deleting own property causes index property not to be visited on an Array-like object",
test: function testcase() {
var accessed = false;
var obj = { length: 2 };
function callbackfn(val, idx, o) {
accessed = true;
return true;
}
Object.defineProperty(obj, "1", {
get: function () {
return 6.99;
},
configurable: true
});
Object.defineProperty(obj, "0", {
get: function () {
delete obj[1];
return 0;
},
configurable: true
});
var newArr = Array.prototype.filter.call(obj, callbackfn);
return newArr.length === 1 && newArr[0] === 0;
},
precondition: function prereq() {
return fnExists(Array.prototype.filter) && fnExists(Object.defineProperty) && fnSupportsArrayIndexGettersOnObjects();
}
});
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