Unit Testing WPF UserControls

Question

Is it possible to test my WPF UserControls from NUnit (or similar)? If I create an instance of the usercontrol in a unit test like so:

// Create an instance of the WPF UserControl
var view = new ChildrenListView();

I get the following error:

"The calling thread must be STA, because many UI components require this"

I get the feeling I'm missing something very important here.

Answer 1

Use the [STAThread] attribute.

    [Test]
    [STAThread]
    public void TestConstructorDoesNotThrow()
    {
        Expect(() => new ChildrenListView(), Throws.Nothing);
    }