Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame^] | 1 | // Copyright 2011 the V8 project authors. All rights reserved. |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 2 | // Redistribution and use in source and binary forms, with or without |
| 3 | // modification, are permitted provided that the following conditions are |
| 4 | // met: |
| 5 | // |
| 6 | // * Redistributions of source code must retain the above copyright |
| 7 | // notice, this list of conditions and the following disclaimer. |
| 8 | // * Redistributions in binary form must reproduce the above |
| 9 | // copyright notice, this list of conditions and the following |
| 10 | // disclaimer in the documentation and/or other materials provided |
| 11 | // with the distribution. |
| 12 | // * Neither the name of Google Inc. nor the names of its |
| 13 | // contributors may be used to endorse or promote products derived |
| 14 | // from this software without specific prior written permission. |
| 15 | // |
| 16 | // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 17 | // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 18 | // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 19 | // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 20 | // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 21 | // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 22 | // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 26 | // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | |
| 28 | var e = new Error(); |
| 29 | assertFalse(e.hasOwnProperty('message')); |
| 30 | Error.prototype.toString = Object.prototype.toString; |
| 31 | assertEquals("[object Error]", Error.prototype.toString()); |
| 32 | assertEquals(Object.prototype, Error.prototype.__proto__); |
Ben Murdoch | b8e0da2 | 2011-05-16 14:20:40 +0100 | [diff] [blame^] | 33 | |
| 34 | // Check that error construction does not call setters for the |
| 35 | // properties on error objects in prototypes. |
| 36 | function fail() { assertTrue(false); }; |
| 37 | ReferenceError.prototype.__defineSetter__('stack', fail); |
| 38 | ReferenceError.prototype.__defineSetter__('message', fail); |
| 39 | ReferenceError.prototype.__defineSetter__('type', fail); |
| 40 | ReferenceError.prototype.__defineSetter__('arguments', fail); |
| 41 | var e0 = new ReferenceError(); |
| 42 | var e1 = new ReferenceError('123'); |
| 43 | assertTrue(e1.hasOwnProperty('message')); |
| 44 | assertTrue(e0.hasOwnProperty('stack')); |
| 45 | assertTrue(e1.hasOwnProperty('stack')); |
| 46 | assertTrue(e0.hasOwnProperty('type')); |
| 47 | assertTrue(e1.hasOwnProperty('type')); |
| 48 | assertTrue(e0.hasOwnProperty('arguments')); |
| 49 | assertTrue(e1.hasOwnProperty('arguments')); |
| 50 | |
| 51 | // Check that the name property on error prototypes is read-only and |
| 52 | // dont-delete. This is not specified, but allowing overwriting the |
| 53 | // name property with a getter can leaks error objects from different |
| 54 | // script tags in the same context in a browser setting. We therefore |
| 55 | // disallow changes to the name property on error objects. |
| 56 | assertEquals("ReferenceError", ReferenceError.prototype.name); |
| 57 | delete ReferenceError.prototype.name; |
| 58 | assertEquals("ReferenceError", ReferenceError.prototype.name); |
| 59 | ReferenceError.prototype.name = "not a reference error"; |
| 60 | assertEquals("ReferenceError", ReferenceError.prototype.name); |
| 61 | |