public void ShouldGetDataContext()
{
var element = new Placeholder{DataContext = null};
var model = new ObservableCollection<string>();
element.GetDataContext().ShouldBe(null);
element.DataContext = model;
element.GetDataContext().ShouldBe(model);
var shape = new Rectangle();
shape.GetDataContext().ShouldBe(null);
}
