WPF-XamlParseException当Window类中的单元测试方法时 [英] WPF - XamlParseException when unit testing method in Window class

问题描述

我正在尝试使用MSTest为WPF应用程序中MainWindow类中的方法编写单元测试.但是，出现以下异常:

I'm trying to use MSTest to write unit tests for methods in my MainWindow class in my WPF application. However, I get the following exception:

System.Windows.Markup.XamlParseException:'在'System.Windows.StaticResourceExtension'上提供值引发了异常.行号"127"和行位置"32". ---> System.Exception:找不到名为"verticalLineStyle"的资源.资源名称区分大小写.

System.Windows.Markup.XamlParseException: 'Provide value on 'System.Windows.StaticResourceExtension' threw an exception.' Line number '127' and line position '32'. ---> System.Exception: Cannot find resource named 'verticalLineStyle'. Resource names are case sensitive.

在App.xaml中包含的ResourceDictionary中找到

verticalLineStyle.我不需要这种样式来测试我要测试的方法，但是我无法超越.我只是在单元测试中创建MainWindow的新实例，然后尝试在该实例上调用实例方法.当我尝试创建MainWindow的实例时发生异常. MainWindow被定义为public partial class MainWindow : Window.

verticalLineStyle is found in a ResourceDictionary that is included in App.xaml. I have no need of this style to test the method I'm trying to test, but I can't get past this. I'm just creating a new instance of MainWindow in my unit test and trying to call an instance method on that. The exception occurs when I try to create the instance of MainWindow. MainWindow is defined as public partial class MainWindow : Window.

如何摆脱这个错误? WPF应用程序中的Windows中是否有一些首选的单元测试方法?

How do I get rid of this error? Is there some preferred way of unit testing methods in windows in WPF applications?

推荐答案

Application.LoadComponent(
    new Uri("/MyAppAssemblyName;component/App.xaml", UriKind.Relative));

这对我有帮助.

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