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| 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 |
| 3 // found in the LICENSE file. |
| 4 |
| 5 // Flags: --expose-debug-as debug --allow-natives-syntax |
| 6 |
| 7 Debug = debug.Debug; |
| 8 |
| 9 var base_id = -1; |
| 10 var exception = null; |
| 11 var expected = [ |
| 12 "enqueue #1", |
| 13 "willHandle #1", |
| 14 "then #1", |
| 15 "enqueue #2", |
| 16 "didHandle #1", |
| 17 "willHandle #2", |
| 18 "then #2", |
| 19 "didHandle #2", |
| 20 "enqueue #3", |
| 21 "willHandle #3", |
| 22 "didHandle #3" |
| 23 ]; |
| 24 |
| 25 function assertLog(msg) { |
| 26 print(msg); |
| 27 assertTrue(expected.length > 0); |
| 28 assertEquals(expected.shift(), msg); |
| 29 if (!expected.length) { |
| 30 Debug.setListener(null); |
| 31 } |
| 32 } |
| 33 |
| 34 function listener(event, exec_state, event_data, data) { |
| 35 if (event != Debug.DebugEvent.AsyncTaskEvent) return; |
| 36 try { |
| 37 if (base_id < 0) |
| 38 base_id = event_data.id(); |
| 39 var id = event_data.id() - base_id + 1; |
| 40 assertEquals("Promise.resolve", event_data.name()); |
| 41 assertLog(event_data.type() + " #" + id); |
| 42 } catch (e) { |
| 43 print(e + e.stack) |
| 44 exception = e; |
| 45 } |
| 46 } |
| 47 |
| 48 Debug.setListener(listener); |
| 49 |
| 50 var resolver; |
| 51 var p = new Promise(function(resolve, reject) { |
| 52 resolver = resolve; |
| 53 }); |
| 54 p.then(function() { |
| 55 assertLog("then #1"); |
| 56 }).then(function() { |
| 57 assertLog("then #2"); |
| 58 }); |
| 59 resolver(); |
| 60 |
| 61 %RunMicrotasks(); |
| 62 |
| 63 assertNull(exception); |
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