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/// Copyright (c) 2012 Ecma International. All rights reserved.
/// Ecma International makes this code available under the terms and conditions set
/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
/// "Use Terms"). Any redistribution of this code must retain the above
/// copyright and this notice and otherwise comply with the Use Terms.
/**
* @path ch15/15.5/15.5.4/15.5.4.20/15.5.4.20-2-42.js
* @description String.prototype.trim - TypeError exception was thrown when 'this' is an object that both toString and valueOf wouldn't return primitive value.
*/
function testcase() {
var toStringAccessed = false;
var valueOfAccessed = false;
var obj = {
toString: function () {
toStringAccessed = true;
return {};
},
valueOf: function () {
valueOfAccessed = true;
return {};
}
};
try {
String.prototype.trim.call(obj);
return false;
} catch (e) {
return valueOfAccessed && toStringAccessed && (e instanceof TypeError);
}
}
runTestCase(testcase);
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