resource_archiver.rb

class ResourceArchiver
  def archive_resource
    @resource_downloader.download_resource # download_resource is already tested properly
    @resource_downloader.archive           # archive is already tested properly
    upload_resource_archive                # upload_resource_archive s already tested properly
  end
end

resource_archiver_spec.rb

require 'spec_helper'

describe ResourceArchiver do
  let(:resource_archiver) { ResourceArchiver.new(Factory(:resource_downloader)) }

  describe '#archive_resource' do
    it 'calls methods in correct order' do
      rd = resource_archiver.instance_variable_get(:@resource_downloader)
      rd.should_receive(:download_resource).and_return(true)
      rd.should_receive(:archive).and_return(true)
      resource_archiver.should_receive(:upload_resource_archive).and_return(true)
      resource_archiver.archive_resource
    end
  end
end