test262/test/suite/ietestcenter/chapter13/13.2/13.2-15-1.js

56 lines
2.7 KiB
JavaScript

/// 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,
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ES5Harness.registerTest({
id: "13.2-15-1",
path: "TestCases/chapter13/13.2/13.2-15-1.js",
description: "Function Object has length as its own property and does not invoke the setter defined on Function.prototype.length (Step 15)",
test: function testcase() {
var fun = function (x, y) { };
var verifyValue = false;
verifyValue = (fun.hasOwnProperty("length") && fun.length === 2);
var verifyWritable = false;
fun.length = 1001;
verifyWritable = (fun.length === 1001);
var verifyEnumerable = false;
for (var p in fun) {
if (p === "length") {
verifyEnumerable = true;
}
}
var verifyConfigurable = false;
delete fun.length;
verifyConfigurable = fun.hasOwnProperty("length");
return verifyValue && !verifyWritable && !verifyEnumerable && verifyConfigurable;
},
precondition: function prereq() {
return fnExists(Object.defineProperty);
}
});