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1 // Copyright 2009 the V8 project authors. All rights reserved. | 1 // Copyright 2009 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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374 assertEquals("abc", error.stack); | 374 assertEquals("abc", error.stack); |
375 | 375 |
376 error = new Error(); | 376 error = new Error(); |
377 error.__defineGetter__("name", function() { delete error.stack; }); | 377 error.__defineGetter__("name", function() { delete error.stack; }); |
378 assertEquals(undefined, error.stack); | 378 assertEquals(undefined, error.stack); |
379 | 379 |
380 // Check that repeated trace collection does not crash. | 380 // Check that repeated trace collection does not crash. |
381 error = new Error(); | 381 error = new Error(); |
382 Error.captureStackTrace(error); | 382 Error.captureStackTrace(error); |
383 | 383 |
| 384 // Check property descriptor. |
| 385 var o = {}; |
| 386 Error.captureStackTrace(o); |
| 387 assertEquals([], Object.keys(o)); |
| 388 var desc = Object.getOwnPropertyDescriptor(o, "stack"); |
| 389 assertFalse(desc.writable); |
| 390 assertFalse(desc.enumerable); |
| 391 assertTrue(desc.configurable); |
| 392 |
384 // Check that exceptions thrown within prepareStackTrace throws an exception. | 393 // Check that exceptions thrown within prepareStackTrace throws an exception. |
385 Error.prepareStackTrace = function(e, frames) { throw 42; } | 394 Error.prepareStackTrace = function(e, frames) { throw 42; } |
386 | 395 |
387 var x = {} | 396 var x = {} |
388 assertThrows(() => Error.captureStackTrace(x)); | 397 assertThrows(() => Error.captureStackTrace(x)); |
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