WPF 自定义控件 - 如何对自定义控件进行单元测试？

发布于 2024-10-28 06:40:27 字数 1310 浏览 0 评论 0原文

基本上，我正在寻找有关如何对 WPF 自定义控件进行单元测试的资源/指南。

在这个特定的实例中，我创建的自定义控件恰好扩展了Decorator 类。它包装了一个 PasswordBox 子项，以将 CLR 密码属性公开为 DependencyProperty。

public class BindablePasswordBox : Decorator
{
    public BindablePasswordBox()
    {
        Child = new PasswordBox();
        ((PasswordBox)Child).PasswordChanged += this.PasswordChanged;
    }

    public static readonly DependencyProperty PasswordProperty =
        DependencyProperty.Register("Password", typeof(String), typeof(BindablePasswordBox),
            new FrameworkPropertyMetadata
            {
                BindsTwoWayByDefault = true,
                DefaultUpdateSourceTrigger = UpdateSourceTrigger.LostFocus
            });

    public String Password
    {
        get { return (String)GetValue(PasswordProperty); }
        set { SetValue(PasswordProperty, value); }
    }

    void PasswordChanged(Object sender, RoutedEventArgs e)
    {
        Password = ((PasswordBox)Child).Password;
    }
}

PS 我正在使用内置的 Visual Studio 测试框架 (Microsoft.VisualStudio.QualityTools.UnitTestFramework)。

为了避免因暴露内存中的明文密码而引起强烈反对：我知道我通过在 DependencyProperty 中暴露明文密码来违背 Microsoft 的安全推理，但考虑到我能够使用 Snoop 从标准密码框公开明文密码我发现它不再那么重要了。

原文

Basically, I'm looking for resources/guides on how to unit test a WPF Custom Control.

In this particular instance, the custom control I created happens to extend the Decorator class. It wraps a PasswordBox child to expose the CLR Password Property as a DependencyProperty.

public class BindablePasswordBox : Decorator
{
    public BindablePasswordBox()
    {
        Child = new PasswordBox();
        ((PasswordBox)Child).PasswordChanged += this.PasswordChanged;
    }

    public static readonly DependencyProperty PasswordProperty =
        DependencyProperty.Register("Password", typeof(String), typeof(BindablePasswordBox),
            new FrameworkPropertyMetadata
            {
                BindsTwoWayByDefault = true,
                DefaultUpdateSourceTrigger = UpdateSourceTrigger.LostFocus
            });

    public String Password
    {
        get { return (String)GetValue(PasswordProperty); }
        set { SetValue(PasswordProperty, value); }
    }

    void PasswordChanged(Object sender, RoutedEventArgs e)
    {
        Password = ((PasswordBox)Child).Password;
    }
}

P.S. I'm using the built-in Visual Studio Testing Framework (Microsoft.VisualStudio.QualityTools.UnitTestFramework).

To avoid getting backlash about exposing plaintext passwords in memory: I understand that I'm going against Microsoft's security reasoning by exposing the plaintext password in a DependencyProperty, but considering that I was able to use Snoop to expose the plaintext password from a standard PasswordBox I don't find it all that important anymore.

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