Testing Signal bindings

This is a question which originates from #551.

Is it also possible to use BindSignal instead of Subscribe ?
I would like to write a unit test that checks my bindings. Here is what I would like to do:

[Test]
public void Signal_SomeSignal_ShouldFireAllRelated()
{
  SignalBusInstaller.Install(Container);
  ProjectSignals.BindSignals(Container); // Binds all my signals for my project

  var someMock = new Mock<ISomeInterface>();
  Container.Bind<ISomeInterface>().FromInstance(someMock.Object);

  var target = Container.Resolve<SignalBus>();
  target.Fire<Signal_SomeSignal>();

  someMock .Verify(x => x.DoSomething(), Times.Exactly(1));
}

But this doesn’t work. No Subscriptions.

[batrand]

Was having the same issue where BindSignal does not get called in unit tests; dropping in to confirm that adding Container.ResolveRoots() solves the issue.

[shadhex]

Once you have your signaled binded, try calling Container.ResolveRoots(); Also make sure you don’t have a [Setup] method that injects or resolves the signalbus.

[Test]
public void Signal_SomeSignal_ShouldFireAllRelated()
{
  SignalBusInstaller.Install(Container);
  ProjectSignals.BindSignals(Container); // Binds all my signals for my project

  var someMock = new Mock<ISomeInterface>();
  Container.Bind<ISomeInterface>().FromInstance(someMock.Object);
  Container.ResolveRoots(); //This guy

  var target = Container.Resolve<SignalBus>();
  target.Fire<Signal_SomeSignal>();

  someMock .Verify(x => x.DoSomething(), Times.Exactly(1));
}

In [Setup] you can call the installer there if you’d like

       //[Inject] SignalBus _signalBus = null;
        [SetUp]
        public void Install()
        {
           SignalBusInstaller.Install(Container);
            //do not inject _signalBus since you might be installing specific binding
            //in [test] later on.  Resolve<SignalBus> in invidual [test] instead.
           //Container.Inject(this);
        }

The example above were all doing this, but it will fail if SignalBus was also injected in [SetUp].