test262/test/built-ins/Function/15.3.2.1-10-6gs.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.

/*---
es5id: 15.3.2.1-10-6gs
description: >
    Strict Mode - SyntaxError is thrown if a function using the
    Function constructor has two identical parameters in (local)
    strict mode
flags: [noStrict]
---*/

assert.throws(SyntaxError, function() {
  new Function('param_1', 'param_2', 'param_1', '"use strict";return 0;');
});