Rails - Rspec - stub params

If this is a controller spec, you should be able to do something like this:

allow(controller).to receive(:params).and_return({controller: 'a value'})

Alternatively, move the params[:controller] statement to a separate method and stub that in your spec.

For strong parameters you can stub them as following:

params = ActionController::Parameters.new(foo: 'bar')
allow(controller).to receive(:params).and_return(params)