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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: "15.4.4.19-8-b-10",
path: "TestCases/chapter15/15.4/15.4.4/15.4.4.19/15.4.4.19-8-b-10.js",
description: "Array.prototype.map - deleting property of prototype causes prototype index property not to be visited on an Array-like Object",
test: function testcase() {
function callbackfn(val, idx, obj) {
return idx === 1 && typeof val === "undefined";
}
var obj = { 2: 2, length: 20 };
Object.defineProperty(obj, "0", {
get: function () {
delete Object.prototype[1];
return 0;
},
configurable: true
});
try {
Object.prototype[1] = 1;
var testResult = Array.prototype.map.call(obj, callbackfn);
return testResult.length === 20 && typeof testResult[1] === "undefined";
} finally {
delete Object.prototype[1];
}
},
precondition: function prereq() {
return fnExists(Array.prototype.map) && fnExists(Object.defineProperty) && fnSupportsArrayIndexGettersOnObjects();
}
});
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