Testing Service Worker Ember Octane

I am using ember-service-worker to implement offline behavior for my app, so far it does what I need, but I am wondering how can I write some test for my app, to test the service worker is doing his job properly and also because this breaks my current integration tests.

in offline mode I use indexeddb to catch the request and then resync the data when the user have a more stable connection.

thanks a lot for your help :D