| // Copyright 2014 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Flags: --expose-debug-as debug --allow-natives-syntax |
| |
| Debug = debug.Debug; |
| |
| var base_id = -1; |
| var exception = null; |
| var expected = [ |
| "enqueue #1", |
| "willHandle #1", |
| "then #1", |
| "enqueue #2", |
| "didHandle #1", |
| "willHandle #2", |
| "then #2", |
| "didHandle #2", |
| "enqueue #3", |
| "willHandle #3", |
| "didHandle #3" |
| ]; |
| |
| function assertLog(msg) { |
| print(msg); |
| assertTrue(expected.length > 0); |
| assertEquals(expected.shift(), msg); |
| if (!expected.length) { |
| Debug.setListener(null); |
| } |
| } |
| |
| function listener(event, exec_state, event_data, data) { |
| if (event != Debug.DebugEvent.AsyncTaskEvent) return; |
| try { |
| if (base_id < 0) |
| base_id = event_data.id(); |
| var id = event_data.id() - base_id + 1; |
| assertEquals("Promise.resolve", event_data.name()); |
| assertLog(event_data.type() + " #" + id); |
| } catch (e) { |
| print(e + e.stack) |
| exception = e; |
| } |
| } |
| |
| Debug.setListener(listener); |
| |
| var resolver; |
| var p = new Promise(function(resolve, reject) { |
| resolver = resolve; |
| }); |
| p.then(function() { |
| assertLog("then #1"); |
| }).then(function() { |
| assertLog("then #2"); |
| }); |
| resolver(); |
| |
| %RunMicrotasks(); |
| |
| assertNull(exception); |