|  | // Copyright 2014 the V8 project authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style license that can be | 
|  | // found in the LICENSE file. | 
|  |  | 
|  | assertEquals('', ''.normalize()); | 
|  | assertTrue(delete Array.prototype.indexOf); | 
|  | assertEquals('', ''.normalize()); | 
|  |  | 
|  | assertThrows(function() { ''.normalize('invalid'); }, RangeError); | 
|  | assertTrue(delete Array.prototype.join); | 
|  | assertThrows(function() { ''.normalize('invalid'); }, RangeError); | 
|  |  | 
|  | // All of these toString to an invalid form argument. | 
|  | assertThrows(function() { ''.normalize(null) }, RangeError); | 
|  | assertThrows(function() { ''.normalize(true) }, RangeError); | 
|  | assertThrows(function() { ''.normalize(false) }, RangeError); | 
|  | assertThrows(function() { ''.normalize(42) }, RangeError); | 
|  | assertThrows(function() { ''.normalize({}) }, RangeError); | 
|  | assertThrows(function() { ''.normalize([]) }, RangeError); |