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 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 "didHandle #1", 15 ]; 16 17 function assertLog(msg) { 18 print(msg); 19 assertTrue(expected.length > 0); 20 assertEquals(expected.shift(), msg); 21 if (!expected.length) { 22 Debug.setListener(null); 23 } 24 } 25 26 function listener(event, exec_state, event_data, data) { 27 if (event != Debug.DebugEvent.AsyncTaskEvent) return; 28 try { 29 if (base_id < 0) 30 base_id = event_data.id(); 31 var id = event_data.id() - base_id + 1; 32 assertEquals("Object.observe", event_data.name()); 33 assertLog(event_data.type() + " #" + id); 34 } catch (e) { 35 print(e + e.stack) 36 exception = e; 37 } 38 } 39 40 Debug.setListener(listener); 41 42 var obj = {}; 43 Object.observe(obj, function(changes) { 44 print(change.type + " " + change.name + " " + change.oldValue); 45 }); 46 47 obj.foo = 1; 48 obj.zoo = 2; 49 obj.foo = 3; 50 51 assertNull(exception); 52
