如果我记录将登录凭据输入到对话框中的操作并在 UImap1.uitests 中调用此 Submit()。自动生成的代码将如下所示：
public void Launch()
{
#region Variable Declarations
WpfEdit uIUsernameBoxEdit = this.UIOCC600OILoginWindow.UIUsernameBoxEdit;
WpfEdit uIPasswordBoxEdit = this.UIOCC600OILoginWindow.UIPasswordBoxEdit;
WpfButton uIOKButton = this.UIOCC600OILoginWindow.UIOKButton;
#endregion
// Type 'username' in 'usernameBox' text box
uIUsernameBoxEdit.Text = this.LaunchParams.UIUsernameBoxEditText;
// Click 'passwordBox' text box
Mouse.Click(uIPasswordBoxEdit, new Point(63, 13));
// Type '********' in 'passwordBox' text box
Keyboard.SendKeys(uIPasswordBoxEdit, this.LaunchParams.UIPasswordBoxEditSendKeys, true);
// Click 'OK' button
Mouse.Click(uIOKButton, new Point(33, 14));
}
现在，如果我在 CodedUI 测试类中使用 ClassInitialize 修饰的方法手动启动应用程序，如下所示：
[ClassInitialize()]
public static void MyTestInitialize(TestContext context)
{
Process.Start(@"C:\Program Files (x86)\MyCompany\MyApp.exe");
Playback.Wait(2000);
var uimap = new LaunchApplicationMap();
var loginParams = uimap.EnterLoginCredentialsParams;
loginParams.UIUsernameBoxEditText = "username";
loginParams.UIPasswordBoxEditSendKeys = Playback.EncryptText("password
");
uimap.Launch();
Playback.Wait(5000);
}
为什么我会得到如下所示的空异常？
这也是堆栈跟踪：
System.NullReferenceException was unhandled by user code
Message=Object reference not set to an instance of an object.
Source=Microsoft.VisualStudio.TestTools.UITest.Framework
StackTrace:
at Microsoft.VisualStudio.TestTools.UITest.Framework.UITestService.TechnologyManagerByName(String technologyName)
at Microsoft.VisualStudio.TestTools.UITesting.UITestControl.ValidateSearchProperties()
at Microsoft.VisualStudio.TestTools.UITesting.UITestControl.FindInternal()
at Microsoft.VisualStudio.TestTools.UITesting.UITestControl.FindControlIfNecessary()
at Microsoft.VisualStudio.TestTools.UITesting.UITestControl.SetProperty(String propertyName, Object value)
at Microsoft.VisualStudio.TestTools.UITesting.WpfControls.WpfEdit.set_Text(String value)
at UITests.UIMaps.LaunchApplicationMapClasses.LaunchApplicationMap.Launch() in C:\dev\OCC600\Source - Copy\Tests\UITests\UIMaps\LaunchApplicationMap.Designer.cs:line 44
at UITests.LogsViewTests.MyTestInitialize(TestContext context) in C:\dev\OCC600\Source - Copy\Tests\UITests\LogsViewTests.cs:line 70
InnerException:
TIA。