1// Copyright (c) 2012 The Chromium 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/** 6 * @fileoverview Helper functions for use in tracing tests. 7 */ 8base.exportTo('test_utils', function() { 9 function getAsync(url, cb) { 10 var req = new XMLHttpRequest(); 11 req.open('GET', url, true); 12 req.onreadystatechange = function(aEvt) { 13 if (req.readyState == 4) { 14 window.setTimeout(function() { 15 if (req.status == 200) { 16 cb(req.responseText); 17 } else { 18 console.log('Failed to load ' + url); 19 } 20 }, 0); 21 } 22 }; 23 req.send(null); 24 } 25 26 function newAsyncSlice(start, duration, startThread, endThread) { 27 return newAsyncSliceNamed('a', start, duration, startThread, endThread); 28 } 29 30 function newAsyncSliceNamed(name, start, duration, startThread, endThread) { 31 var s = new tracing.TimelineAsyncSlice('', name, 0, start); 32 s.duration = duration; 33 s.startThread = startThread; 34 s.endThread = endThread; 35 var subSlice = new tracing.TimelineAsyncSlice('', name, 0, start); 36 subSlice.duration = duration; 37 subSlice.startThread = startThread; 38 subSlice.endThread = endThread; 39 s.subSlices = [subSlice]; 40 return s; 41 } 42 43 function newSlice(start, duration) { 44 return newSliceNamed('a', start, duration); 45 } 46 47 function newSliceNamed(name, start, duration) { 48 var s = new tracing.TimelineSlice('', name, 0, start, {}, duration); 49 return s; 50 } 51 52 function newSliceCategory(category, name, start, duration) { 53 var s = new tracing.TimelineSlice(category, name, 0, start, {}, duration); 54 return s; 55 } 56 57 function findSliceNamed(slices, name) { 58 for (var i = 0; i < slices.length; i++) 59 if (slices[i].title == name) 60 return slices[i]; 61 return undefined; 62 } 63 64 return { 65 getAsync: getAsync, 66 newAsyncSlice: newAsyncSlice, 67 newAsyncSliceNamed: newAsyncSliceNamed, 68 newSlice: newSlice, 69 newSliceNamed: newSliceNamed, 70 newSliceCategory: newSliceCategory, 71 findSliceNamed: findSliceNamed 72 }; 73}); 74