/// 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.
/**
 * Refer 13.1; 
 * It is a SyntaxError if any Identifier value occurs more than once within a FormalParameterList of a strict mode
 * FunctionDeclaration or FunctionExpression.
 *
 * @path ch13/13.1/13.1-23-s.js
 * @description Strict Mode - SyntaxError is thrown if a function is created using a FunctionDeclaration that is contained in eval strict code and the function has two identical parameters
 * @onlyStrict
 */


function testcase() {

        try {
            eval("'use strict'; function _13_1_23_fun(param, param) { }");
            return false;
        } catch (e) {
            return e instanceof SyntaxError;
        }
    }
runTestCase(testcase);