WatiN和HttpWatch交互简介

Httpwatch是一款强大的网页数据分析工具，它可以在不改变浏览器和网络设置的基础上捕捉http和https数据。查看底层的http数据，包括headers, cookies, cache等，同时统计发送接收请求时间，并提供完备的日志记录系统。同时该工具具有完备的COM接口，用于给用户通过编程的方式操纵httpwatch.

Httpwatch 自动化对象介绍:

Controller 类：总是控制的起点，它用于创建httpwatch插件接口或读取log文件，通过IE属性和Firefox属性的new()方法或者Attach()方法返回Plugin实例对象。

Plugin 类：是httpwatch与浏览器交互的接口。提供了方法用于开始和停止http流量的记录，还有很多方法和属性管理httpwatch的日志文件和配置自动化记录。

Log 类： Plugin对象的Log属性是Log对象的入口。包含了一系列通过httpwatch记录的日志。Log对象中具有很多重要的类，比如Pages, Entries类。

Entry 类： 每个Log对象都包含一组Entry对象，它代表的是单个HTTP事务的详情（比如http请求）

通过 WatiN和httpwatch结合进行自动化测试，可以很大程度扩展自动化测试的范围，比如在自动化测试过程中验证链接的连通性，网页传输速率和时间，查看网页的详细信息等。

C#操作httpwatch

1. 添加httpwatch自动化类库到项目中
2. 创建与httpwatch工具的联系

　　　　创建新的IE接口：顶部添加引用  using HttpWatch;

1             Controller control = new Controller();

2             Plugin plugin = control.IE.New();

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　　　　创建新的Firefox接口：

1             Controller control = new Controller();

2             Plugin plugin = control.Firefox.New();

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　　　　附加一个已存在的IE窗口：

1             SHDocVw.IWebBrowser2 ieBrowser = new SHDocVw.InternetExplorer();

2             ieBrowser.Visible = true;  //Required to see new window

3             Controller control = new Controller();

4             Plugin plugin = control.IE.Attach(ieBrowser);

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　　　　附加一个已存在的Firefox窗口：

1             Controller control = new Controller();

2             Plugin plugin = control.Firefox.Attach(firefoxBrowser);

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　　3. 通过接口读取http详细信息

Example:

 1         public static HttpWatchInfo RunHttpWatch(string url)

 2         {

 3             Controller control = new Controller();

 4             Plugin plugin = control.IE.New();

 5 

 6             plugin.Log.EnableFilter(false);

 7             plugin.Record();

 8             plugin.GotoURL(url);

 9             control.Wait(plugin, -1);

10             plugin.Stop();

11 

12             HttpWatchInfo httpWatchSummary = new HttpWatchInfo();

13             if (plugin.Log.Pages.Count != 0)

14             {

15                 Summary summary = plugin.Log.Pages[0].Entries.Summary;

16                 httpWatchSummary.URL = url;

17                 httpWatchSummary.Time = summary.Time;

18                 httpWatchSummary.RoundTrips = summary.RoundTrips;

19                 httpWatchSummary.BytesReceived = summary.BytesReceived;

20                 httpWatchSummary.BytesSent = summary.BytesSent;

21                 httpWatchSummary.CompressionSavedBytes = summary.CompressionSavedBytes;

22 

23                 IList<string> codes = new List<string>();

24                 for (int i = 0; i < summary.StatusCodes.Count; i++)

25                     codes.Add(summary.StatusCodes[i].Result);

26                 httpWatchSummary.StatusCode = codes;

27 

28                 IList<HttpWatchDetail> httpWatchDetail = new List<HttpWatchDetail>();

29                 for (int i = 0; i < plugin.Log.Entries.Count; i++)

30                 {

31                     HttpWatchDetail detail = new HttpWatchDetail();

32                     detail.URL = plugin.Log.Entries[i].URL;

33                     detail.Result = plugin.Log.Entries[i].Result;

34                     detail.Time = plugin.Log.Entries[i].Time.ToString();

35                     detail.Error = plugin.Log.Entries[i].Error;

36                     try

37                     {

38                         detail.Content = plugin.Log.Entries[i].Content.Data;

39                     }

40                     catch

41                     {

42                         detail.Content = null;

43                     }

44                     httpWatchDetail.Add(detail);

45                 }

46                 httpWatchSummary.Details = httpWatchDetail;

47             }

48             plugin.CloseBrowser();

49             return httpWatchSummary;

50         }

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