context "delivering a blob of timeslice-specific animal and procedure data" do

    should "exclude animals that are currently in use" do
      real_controller.override(mocks(:internalizer, :availability_source))
      availability = flexmock("availability")

      params = { 'one or more timeslice params' => "with their values",  # <<<< New data
                 'ignoring' => 'reservation id' }
      during {
        get '/json/animals_and_procedures_blob', params

      }.behold! {
        @internalizer.should_receive(:make_timeslice).once.
                      with(params).                  # <<<< Different data for conversion
                      and_return("timeslice")
        # ... everything else is the same ...
      }
      # ... assertions about the result
    end
  end