Sidekiq Batches, Ruby On Rails - How to write test with rspec for testing Job, where inside the batch is reopens from another Job

Question

Class ParentWorker
    def perform(team_id)
        batch = Sidekiq::Batch.new
        batch.on(:complete, self.class, {:team_id => team_id})
        batch.jobs do
            Team.find(team_id).assets.each do |asset|
                AnotherWorker.perform_async(asset.id)
            end
    end
    def on_compete(status, options)
       ...
    end
end


class AnotherWorker
    def perform(asset_id)
        batch.jobs do
          3.times do 
            ThirdJobWorker.perform_async
          end
        end
    end
end

I all time get the problem that
undefined method `jobs' for nil:NilClass

But the jobs works correct

describe AnotherWorker, type: :job do describe '#perform' do subject { described_class.new.perform(asset_id) }

let(:asset_id) { create(:asset).id }

let(:batch) { instance_double(Sidekiq::Batch) }


before do
  allow(Sidekiq::Batch).to receive(:new).and_return(batch)
  allow(batch).to receive(:jobs).and_yield
end

it 'call the other jobs' do
  expect(batch).to receive(:jobs).and_yield

  subject

  expect(ThirdJobWorker).to have_enqueued_sidekiq_job(asset_id)
end

end end