Mocking $filter used inside a service

[subinvarghesein]

I have a usecase where a service (let's say DateService) uses a particular angular filter (let's say Date filter) inside JS code.

How do I mock the filter when testing DateService? My current Spec code is:

beforeEach(ModuleBuilder
   .forModules('MyModule')
   .serviceWithMocks('DateService')
   .build());