| // Copyright (C) 2016 the V8 project authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| /*--- |
| esid: sec-string.prototype.lastindexof |
| description: The "this" value must be object-coercible |
| info: | |
| 1. Let O be ? RequireObjectCoercible(this value). |
| ---*/ |
| |
| var lastIndexOf = String.prototype.lastIndexOf; |
| |
| assert.sameValue(typeof lastIndexOf, 'function'); |
| |
| assert.throws(TypeError, function() { |
| lastIndexOf.call(undefined, ''); |
| }, 'undefined'); |
| |
| assert.throws(TypeError, function() { |
| lastIndexOf.call(null, ''); |
| }, 'null'); |