JSTests/test262/test/language/statements/function/13.1-26-s.js

// Copyright (c) 2012 Ecma International.  All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.

/*---
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: 13.1-26-s
description: >
    Strict Mode - SyntaxError is thrown if a function is created using
    a FunctionDeclaration whose FunctionBody is contained in strict
    code and the function has two identical parameters which are
    separated by a unique parameter name
flags: [noStrict]
---*/


assert.throws(SyntaxError, function() {
            eval("function _13_1_26_fun(param1, param2, param1) { 'use strict'; }");
});