Test MVC using moq
- by Raminder
I am new to moq and I was trying to test a controller (MVC) behaviour that when the view raises a certain event, controller calls a certain function on model, here are the classes -
public class Model
{
public void CalculateAverage()
{
...
}
...
}
public class View
{
public event EventHandler CalculateAverage;
private void RaiseCalculateAverage()
{
if (CalculateAverage != null)
{
CalculateAverage(this, EventArgs.Empty);
}
}
...
}
public class Controller
{
private Model model;
private View view;
public Controller(Model model, View view)
{
this.model = model
this.view = view;
view.CalculaeAverage += view_CalculateAverage;
}
priavate void view_CalculateAverage(object sender, EventArgs args)
{
model.CalculateAverage();
}
}
and the test -
[Test]
public void ModelCalculateAverageCalled()
{
Mock<Model> modelMock = new Mock<Model>();
Mock<View> viewMock = new Mock<View>();
Controller controller = new Controller(modelMock.Object, viewMock.Object);
viewMock.Raise(x => x.CalculateAverage += null, new EventArgs.Empty);
modelMock.Verify(x => x.CalculateAverage());
//never comes here, test fails in above line and exits
Assert.True(true);
}
The issue is that the test is failing in the second last line with "Invocation was not performed on the mock: x = x.CalculateAverage()". Another thing I noticed is that the test terminates on this second last line and the last line is never executed. Am I doing everything correct?
