test262/test/built-ins/RegExp/15.10.4.1-2.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: 15.10.4.1-2
description: >
    RegExp - the thrown error is SyntaxError instead of RegExpError
    when the characters of 'P' do not have the syntactic form Pattern
---*/

assert.throws(SyntaxError, function() {
  var regExpObj = new RegExp('\\');
});