我有一个 presenter 类,它附加了一个注入视图的事件。现在我想测试 presenter 对事件的正确反应。
这是视图界面 IView:
public interface IView
{
event EventHandler MyEvent;
void UpdateView(string test);
}
这是实现了IView
的视图:
public partial class MyView : IView
{
public event EventHandler MyEvent;
public MyView()
{
this.combo.SelectedIndexChanged += this.OnSelectedIndexChanged;
}
public void UpdateView(string test)
{
this.textBox.Text = test;
}
private OnSelectedIndexChanged(Object sender, EventArgs e)
{
if (this.MyEvent != null)
{
this.MyEvent(sender, e);
}
}
}
这是待测试的演示者:
public class MyPresenter
{
private IView _view;
public MyPresenter(IView view)
{
this._view = view;
this._view.MyEvent += this.OnMyEvent;
}
private void OnMyEvent(Object sender, EventArgs e)
{
this._view.UpdateView();
}
}
这是测试夹具,用于测试MyPresenter
:
[TestClass]
public class MyPresenterFixture()
{
private MyPresenter testee;
private Mock<IView> mockView;
[TestMethod]
public void ShouldReactOnMyEvent()
{
// arrange
this.mockView = new Mock<IView>(MockBehavior.Strict);
this.testee = new MyPresenter(this.mockView.Object);
// act
this.mockView.Raise(mock => mock.MyEvent += null); // this does not fire
// assert and verify
this.mockView.Verify(mock => mock.UpdateView(It.IsAny<string>());
}
}
我正在使用Moq 4。 我想知道是否有可能做到我想要的。