Sub Controller Unit Tests

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@zacsimile @annie-xd-wang @AdvancedImagingUTSW I wanted to get feedback on my plan for testing the controllers and view. I have added a dummy view and dummy controller to the conftest file. You can see it below:

@pytest.fixture(scope='session')

def dummy_view():

    from aslm.view.main_application_window import MainApp

    root = tk.Tk()
    view = MainApp(root)
    root.update()
    yield view
    root.destroy()


@pytest.fixture(scope="package")

def dummy_controller(dummy_model):

    from aslm.model.dummy import DummyController

    model = dummy_model
    controller = DummyController()

    controller.configuration = model.configuration

    return controller

I was playing around with Monkeypatching and Mocking but realized that may be overkill. My thought is that, at least for the sub controllers, we can use the dummy controller class that has the functions called by the sub controllers.

Typically the only calls are to "execute" and the dictionary configuration attribute. The dummy controller will use the dummy model's configuration and the "execute" function will return a string. This isolates the sub-controllers from the main controller and the model.

Here is what the dummy controller looks like in code:

class DummyController:
    def __init__(self):
        self.configuration = None

    def execute(str):
        return str

The dummy view will act as the Tkinter test environment. We can pass the dummy view to the sub controllers so that we can test the bindings for sub controller callbacks. This allows for the sub-controllers to be isolated from the view.

Here is a diagram:

The red circles represent what needs to be mocked, mimicked or monkey patched.

[AdvancedImagingUTSW]

Would love to hear your opinions @zacsimile and @annie-xd-wang