Disable global subscriptions during a block

[Mathiou04]

Hey @krisleech,

First, thanks for the great work with the wisper gem.

I just started using it for one of my project and I am facing an issue I didn't find a solution to.

I am using a global subscriber that is in an initializer of a Rails project.
The thing is I would like most of my rspec test to not depend on this subscription. I could use Wisper.clear for that but then, I cannot run the full test suite properly because I need the subscriptions for my system tests.

I had a look at this gem, and tried to use the fake method.
Unfortunately the fake method doesn't work well with wisper-rspec meaning that in this case, the broadcast matcher won't work anymore (given how the matcher is implemented).

I think that in my case what I would like to do is disable the listeners for the duration of a block.
Currently I implemented a dirty hack that basically does this:

 registrations = Wisper::GlobalListeners.registrations.clone # save the global listeners
 Wisper.clear # clear the global listeners
 example.run
 Wisper::GlobalListeners.instance.instance_eval { @registrations = registrations } # restore the global listeners

Do you think such a feature could makes sense? Or am I taking this the wrong way and there is a better approach?

Thanks again for all this work!
Best