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