test262/test/language/statements/function/13.1-25-s.js

// 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.

/*---
info: >
    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.
es5id: 13.1-25-s
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 which are separated by a
    unique parameter name
flags: [noStrict]
includes: [runTestCase.js]
---*/

function testcase() {

        try {
            eval("'use strict'; function _13_1_25_fun(param1, param2, param1) { }");
            return false;
        } catch (e) {
            return e instanceof SyntaxError;
        }
    }
runTestCase(testcase);