7.9  示例程序：LowLevelUITest

这个示例程序综合了本章所讲述的几种技术，创建了一个通过UI对ASP.NET Web程序进行测试的轻量级的自动化测试套件（见清单7-1）。这个程序运行的时候，其输出结果如本章前面图7-1所示。

using System;

using SHDocVw; // COM组件 = Microsoft Internet 控件。IE对象

using mshtml; // .NET组件 = Microsoft.mshtml。HTML接口

using System.Diagnostics; // Process

using System.Threading; // Sleep()

namespace RunTest

{

  class Class1

  {

    static AutoResetEvent documentComplete = new AutoResetEvent(false);

    [STAThread]

    static void Main(string[] args)

    {

      try

      {

        Console.WriteLine("\nStarting test run");

        bool pass = true; // 假定测试可以通过

        SHDocVw.InternetExplorer ie = null;

        Console.WriteLine("\nLaunching an instance of IE");

        Process p = Process.Start("iexplore.exe", "about:blank");

        if (p == null)

          throw new Exception("Could not launch IE");

        Console.WriteLine("Process handle = " + p.MainWindowHandle.ToString());

        SHDocVw.ShellWindows allBrowsers = new SHDocVw.ShellWindows();

        Console.WriteLine("Number active browsers = " + allBrowsers.Count);

        if (allBrowsers.Count == 0)

          throw new Exception("Cannot find IE");

        Console.WriteLine("Attaching to IE");

        int i = 0;

        while (i < allBrowsers.Count && ie == null)

        {

          InternetExplorer e = (InternetExplorer)allBrowsers.Item(i);

          if (e.HWND == (int)p.MainWindowHandle)

            ie = e;

          ++i;

        }

        if (ie == null)

          throw new Exception("Failed to attach to IE");

        ie.DocumentComplete += new

        DWebBrowserEvents2_DocumentCompleteEventHandler(ie_DocumentComplete);

        Console.WriteLine("\nNavigating to the Web app");

        object nil = new object();

        ie.Navigate("http://localhost/TestAuto/Ch7/WebForm1.aspx",

                      ref nil, ref nil, ref nil, ref nil);

        documentComplete.WaitOne();

        Console.WriteLine("Setting IE to size 450x360");

        ie.Width = 450;

        ie.Height = 360;

        Thread.Sleep(1000);

        HTMLDocument theDoc = (HTMLDocument)ie.Document;

        Console.WriteLine("\nSelecting 'ID' radio button");

        HTMLInputElement radioButton =

        (HTMLInputElement)theDoc.getElementById("RadioButtonList1_1");

        radioButton.@checked = true;

        Console.WriteLine("Setting text box to '2B'");

        HTMLInputElement textBox =

        (HTMLInputElement)theDoc.getElementById("TextBox1");

        textBox.value = "2B";

        Console.WriteLine("Clicking search button");

        HTMLInputElement butt =

        (HTMLInputElement)theDoc.getElementById("Button1");

        butt.click();

        documentComplete.WaitOne();

        // 非HTML元素

        Console.WriteLine("Seeking 'Search Complete' in body");

        HTMLBody body =

        (HTMLBody)theDoc.getElementsByTagName("body").item(0, null);

        if (body.createTextRange().findText("Search Complete", 0, 4)

          == true)

        {

          Console.WriteLine("Found target string");

        }

        else

        {

          Console.WriteLine("*Target string not found*");

          pass = false;

        }

        if (pass)

          Console.WriteLine("\nTest result = Pass\n");

        else

          Console.WriteLine("\nTest result = *FAIL*\n");

        Console.WriteLine("Closing IE in 4 seconds . . . ");

        Thread.Sleep(4000);

        ie.Quit();

        Finish:

        Console.WriteLine("\nEnd test run");

        Console.ReadLine();

      }

      catch(Exception ex)

      {

        Console.WriteLine("Fatal error: " + ex.Message);

        Console.ReadLine();

}

    } // Main()

    private static void ie_DocumentComplete(object pDisp, ref object URL)

    {

      documentComplete.Set();

}

  } // class Class1

} // ns RunTest