我想在Watir或Selenium中计算页面加载时间

Question

以下是该方案：

1. Login to a web application with username and password and hit Enter (Start timer)
2. Load the login page (lap timer split, to mark the time for page load )
3. Click on a another page (split the lap timer)
4. Stop the stop watch

Answer 1

Watir中的任何方法调用都会返回所需的时间，因此这是一项简单的任务。

例如，

b.text_field(:id, 'uid').set username
b.text_field(:id, 'pwd').set password
time1 = b.button(:id, 'logon').click
time2 = b.button(:id,  'movepage').click
puts "Time One: #{time1} Time Two: #{time2} Total Time: #{time1+time2}"

Answer 2

所有现代浏览器都引入了新规范。目前谷歌Chrome，IE9已内置，Mozilla正在等待应用已提供的补丁。

这个新规范称为WebTimings，我写了一个blog post，展示了如何使用C＃访问它。访问它的方法是通过javascript，因此可以与所有语言绑定一起使用。

所需的JavaScript是

var performance = window.performance || window.webkitPerformance || window.mozPerformance window.msPerformance || {};
var timings = performance.timing || {};
return timings;

这会返回一个像这样的字典

/* The dictionary returned will contain something like the following.
* The values are in milliseconds since 1/1/1970
*
* connectEnd: 1280867925716
* connectStart: 1280867925687
* domainLookupEnd: 1280867925687
* domainLookupStart: 1280867925687
* fetchStart: 1280867925685
* legacyNavigationStart: 1280867926028
* loadEventEnd: 1280867926262
* loadEventStart: 1280867926155
* navigationStart: 1280867925685
* redirectEnd: 0
* redirectStart: 0
* requestEnd: 1280867925716
* requestStart: 1280867925716
* responseEnd: 1280867925940
* responseStart: 1280867925919
* unloadEventEnd: 1280867925940
*/