Script for http request syntax in rails 5?

I don't suppose anyone has written a script to update the http request syntax to that required in rails 5 have they? The old format is deprected in 5.0 but will presumably be removed in rails 5.1. The warning is

DEPRECATION WARNING: ActionController::TestCase HTTP request methods will accept only keyword arguments in future Rails versions.

Examples:

get :show, params: { id: 1 }, session: { user_id: 1 } process :update, method: :post, params: { id: 1 }

I have many hundreds of tests that will need updating and suspect that a script that would work for the vast majority of the tests could fairly easily be written. No point re-inventing the wheel though so am hoping someone has already done this.

Colin