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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Flags: --expose-debug-as debug --allow-natives-syntax --promise-extra | 5 // Flags: --expose-debug-as debug --allow-natives-syntax |
6 | 6 |
7 // Test debug events when a Promise is rejected, which is caught by a | 7 // Test debug events when a Promise is rejected, which is caught by a |
8 // custom promise, which throws a new exception in its reject handler. | 8 // custom promise, which throws a new exception in its reject handler. |
9 // We expect two Exception debug events: | 9 // We expect two Exception debug events: |
10 // 1) when promise q is rejected. | 10 // 1) when promise q is rejected. |
11 // 2) when the custom reject closure in MyPromise throws an exception. | 11 // 2) when the custom reject closure in MyPromise throws an exception. |
12 | 12 |
13 Debug = debug.Debug; | 13 Debug = debug.Debug; |
14 | 14 |
15 var expected_events = 1; | 15 var expected_events = 1; |
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26 throw new Error("reject"); // event | 26 throw new Error("reject"); // event |
27 }; | 27 }; |
28 var resolve = function() { }; | 28 var resolve = function() { }; |
29 log.push("construct"); | 29 log.push("construct"); |
30 resolver(resolve, reject); | 30 resolver(resolve, reject); |
31 }; | 31 }; |
32 | 32 |
33 MyPromise.prototype = new Promise(function() {}); | 33 MyPromise.prototype = new Promise(function() {}); |
34 p.constructor = MyPromise; | 34 p.constructor = MyPromise; |
35 | 35 |
36 var q = p.chain( | 36 var q = p.then( |
37 function() { | 37 function() { |
38 log.push("reject caught"); | 38 log.push("reject caught"); |
39 return Promise.reject(new Error("caught")); | 39 return Promise.reject(new Error("caught")); |
40 }); | 40 }); |
41 | 41 |
42 function listener(event, exec_state, event_data, data) { | 42 function listener(event, exec_state, event_data, data) { |
43 try { | 43 try { |
44 if (event == Debug.DebugEvent.Exception) { | 44 if (event == Debug.DebugEvent.Exception) { |
45 expected_events--; | 45 expected_events--; |
46 assertTrue(expected_events >= 0); | 46 assertTrue(expected_events >= 0); |
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75 } | 75 } |
76 } catch (e) { | 76 } catch (e) { |
77 %AbortJS(e + "\n" + e.stack); | 77 %AbortJS(e + "\n" + e.stack); |
78 } | 78 } |
79 } | 79 } |
80 | 80 |
81 %EnqueueMicrotask(checkResult); | 81 %EnqueueMicrotask(checkResult); |
82 } | 82 } |
83 | 83 |
84 testDone(0); | 84 testDone(0); |
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