Alex,
thanks for that, and the point is conceeded:
The code as posted represents the "Arrange" aspect of the AAA test,
and the remainder was not posted, because at the time of posting, it
seemed superfluous to the issue I am trying to resolve.
I also agree that there are quite a number of items being stubbed, but
this is due to the complexity of the framework (Prism V2).
This is class definition for the object under test:
public class StatusBarModule
{
public StatusBarModule(IUnityContainer container)
{
Container = container;
RegionManager = Container.Resolve<IRegionManager>();
TheEventAggregator = Container.Resolve<IEventAggregator>
();
}
public IUnityContainer Container { get; private set; }
public IRegionManager RegionManager { get; private set; }
protected IEventAggregator TheEventAggregator { get; private
set; }
public void
RegisterViewsAndServicesNotLoadedThroughConfiguration() { }
public void RaiseAnyPertinentEventsEtc() { }
public string ConfigurationContainerName { get { return
"Status"; } }
public void Initialize()
{
var section = (UnityConfigurationSection)
ConfigurationManager.GetSection("Unity");
if (section != null && section.Containers
[ConfigurationContainerName] != null)
section.Containers
[ConfigurationContainerName].Configure(Container);
RegisterViewsAndServicesNotLoadedThroughConfiguration();
RegisterViewsWithRegions();
RaiseAnyPertinentEventsEtc();
}
public void RegisterViewsWithRegions()
{
RegionManager.RegisterViewWithRegion
(RegionNames.StatusBarRegion, () =>
Container.Resolve<IStatusBarViewPresenter>().View);
}
}
And this is the full test:
[Test]
public void
WhenInstantiated_ShouldRegisterIStatusBarViewWithRegionManager()
{
var unity = MockRepository.GenerateStub<IUnityContainer>
();
var presenter =
MockRepository.GenerateStub<IStatusBarViewPresenter>();
var view = MockRepository.GenerateStub<IStatusBarView>();
presenter.View = view;
var eventAggregator =
MockRepository.GenerateStub<IEventAggregator>();
var regionManager =
MockRepository.GenerateStub<IRegionManager>();
var region = MockRepository.GenerateStub<IRegion>();
var regionCollection =
MockRepository.GenerateMock<IRegionCollection>();
regionCollection.Add(RegionNames.StatusBarRegion, region);
regionManager.Stub(r => r.Regions).Return
(regionCollection);
unity.Stub(container => container.Resolve<IEventAggregator>
()).Return(eventAggregator);
unity.Stub(container => container.Resolve<IRegionManager>
()).Return(regionManager);
unity.Stub(container =>
container.Resolve<IStatusBarViewPresenter>()).Return(presenter);
new StatusBarModule(unity).Initialize(); //
RegionManager.Regions doesn't contain any regions!!
unity.AssertWasCalled(container =>
container.Resolve<IEventAggregator>());
unity.AssertWasCalled(container =>
container.Resolve<IRegionManager>());
unity.AssertWasCalled(container =>
container.Resolve<IStatusBarViewPresenter>());
regionManager.AssertWasCalled(manager =>
manager.RegisterViewWithRegion(RegionNames.StatusBarRegion, () =>
presenter.View));
}
As you can see, the actual line fo code that I am testing is
RegionManager.RegisterViewWithRegion
(RegionNames.StatusBarRegion, () =>
Container.Resolve<IStatusBarViewPresenter>().View);
Though now having described the whole scenario, I'm thinking that
really, what I am testing is whether or not the
"RegisterViewsWithRegions()" member is called; however without
stubbing the other required operands I cannot see how I would go about
defining that test.
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