blob: efc436f52ab25d606b676585dd1b18fb7e36dfbf [file] [log] [blame]
/// Copyright (c) 2009 Microsoft Corporation
///
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/// the following disclaimer.
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ES5Harness.registerTest( {
id: "15.4.4.17-8-7",
path: "TestCases/chapter15/15.4/15.4.4/15.4.4.17/15.4.4.17-8-7.js",
description: "Array.prototype.some returns false if 'length' is 0 (subclassed Array, length overridden with obj w/o valueOf (toString))",
test: function testcase() {
foo.prototype = new Array(1, 2, 3);
function foo() {}
var f = new foo();
var o = { toString: function () { return '0';}};
f.length = o;
// objects inherit the default valueOf method of the Object object;
// that simply returns the itself. Since the default valueOf() method
// does not return a primitive value, ES next tries to convert the object
// to a number by calling its toString() method and converting the
// resulting string to a number.
function cb(){}
var i = f.some(cb);
if (i === false) {
return true;
}
},
precondition: function prereq() {
return fnExists(Array.prototype.some);
}
});