用UIAutomation做验收测试

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这是被测的应用程序:

[img]http://taowen.iteye.com/upload/picture/pic/3365/b3b4e70f-3a2d-45fb-9598-2200c704077d.png[/img]

[img]http://taowen.iteye.com/upload/picture/pic/3366/c6038ae3-566b-4f0f-a7a4-4e96c192012b.png[/img]

应用.NET 3.0提供的UIAutomation,我们可以用以下步骤来进行测试:

1. 启动应用程序


string path = @"The Path To The Application";
Process process = Process.Start(path);

2. 获得主窗口对应的AutomationElement


Thread.Sleep(1000);
AutomationElement aeMainWindow = AutomationElement.FromHandle(process.MainWindowHandle);

3. 获得按钮对应的AutomationElement


AutomationElement aeHelloButton = aeMainWindow.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Button));

4. 点击按钮

此处的GetCurrentPattern相当于Query Interface,Pattern也是UIAutomation的精髓所在。给不同的UI框架做不同的adapter,实现各种各样的pattern,也就是建立了一个概念上的大一统UI。


InvokePattern ipHelloButton = (InvokePattern) aeHelloButton.GetCurrentPattern(InvokePattern.Pattern);
ipHelloButton.Invoke();

5. 获得文本框对应的AutomationElement


AutomationElement aeHelloTextBox = aeMainWindow.FindFirst(TreeScope.Children, new PropertyCondition(AutomationElement.ControlTypeProperty, ControlType.Edit));

6. 取得文本框中的文本


TextPattern tpHelloTextBox = (TextPattern) aeHelloTextBox.GetCurrentPattern(TextPattern.Pattern);
string text = tpHelloTextBox.DocumentRange.GetText(-1);

7. 监听窗口被关闭事件


Automation.AddAutomationEventHandler(WindowPattern.WindowClosedEvent, aeMainWindow, TreeScope.Element, HandleMainWindowClose);
private static void HandleMainWindowClose(object sender, AutomationEventArgs e)
{
Console.WriteLine("Main Window Closed");
}

8. 关闭窗口


process.Kill();

此时控制台上就会打印出”Main Window Closed”

整个过程演示了三个主要功能:

1、如何主动去操纵界面(点击按钮)

2、如何取得界面的状态(获得文本)

3、如何监听界面的事件(关闭窗口事件)

结论:

UIAutomation可以给Win32, WindowsForms, WPF编写的应用程序撰写验收测试。