TestFor doesn't provide model property for controllers

note you can workaround this by doing

def model = controller.test()

And then testing the returned map

The actual example from the documentation is this:

// Test class
class SimpleController {
    def home() {
        render view: "homePage", model: [title: "Hello World"]
    }
    ...
}

The render method populates the model and view. In the example provide you return the model explicitly from the method and should test the return value.

Fixing this would involve weird proxying solutions that I am not sure are worth the added complexity

Actually the documentation I was looking at was section 1.1.5 of the G2.0M1 docs, which doesn't include the actual controller class definition, just the test (below). Looking just at that I had assumed that the test framework populated model for me, but I see that I am mistaken. The more detailed docs for Unit Testing in 9.1.1 do cover the whole example and make sense, especially now you've explained it. However an example where the controller just returns a model (which is most controllers in my experience) would be very helpful I think otherwise more people like me will run into confusion.

@TestFor(SimpleController)
class SimpleControllerTests {
void testIndex()

}