Ember.js testing component with service dependency

I'm trying to write tests for my addon, but encountering some weird behaviour.

I have created a service (via ember-cli generate), which is used inside a component. When an actual application is running everything is working fine.

However, when testing the component I get an error saying that the service is undefined when trying to access any of its properties/methods.

In the test i've put the service in "needs" like so:

needs: ['service:my-service']

"Needing" other components (e.g. child ones used inside) works as expected, services strangely fail.

Are there any additional steps that need to be done?

Running ember-cli 0.1.12.