JSTests/test262/test/built-ins/String/prototype/trim/15.5.4.20-1-1.js

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

/*---
es5id: 15.5.4.20-1-1
description: String.prototype.trim throws TypeError when string is undefined
---*/


assert.throws(TypeError, function() {
  String.prototype.trim.call(undefined);
});