| // Copyright (C) 2009 the Sputnik authors. All rights reserved. |
| // This code is governed by the BSD license found in the LICENSE file. |
| |
| /*--- |
| esid: sec-string.prototype.tostring |
| description: > |
| Throws a TypeError if called on neither String primitive nor String object |
| info: | |
| String.prototype.toString ( ) |
| |
| 1. Return ? thisStringValue(this value). |
| |
| thisStringValue ( value ) |
| |
| [...] |
| 3. Throw a TypeError exception. |
| ---*/ |
| |
| var toString = String.prototype.toString; |
| |
| assert.throws(TypeError, function() { |
| toString.call(false); |
| }); |
| |
| assert.throws(TypeError, function() { |
| toString.call(1); |
| }); |
| |
| assert.throws(TypeError, function() { |
| toString.call(null); |
| }); |
| |
| assert.throws(TypeError, function() { |
| toString.call(); |
| }); |
| |
| assert.throws(TypeError, function() { |
| toString.call(Symbol('desc')); |
| }); |
| |
| assert.throws(TypeError, function() { |
| toString.call({ |
| toString: function() { |
| return 'str'; |
| }, |
| }); |
| }); |
| |
| assert.throws(TypeError, function() { |
| toString.call(['s', 't', 'r']); |
| }); |
| |
| assert.throws(TypeError, function() { |
| ''.concat({toString: toString}); |
| }); |