require 'rails_helper' describe UploadChecksumWorker do describe '#perform' do it 'rescues ActiveRecord::RecordNotFound' do expect { described_class.new.perform(999_999) }.not_to raise_error end it 'calls calculate_checksum_without_delay and save!' do upload = spy expect(Upload).to receive(:find).with(999_999).and_return(upload) described_class.new.perform(999_999) expect(upload).to have_received(:calculate_checksum) expect(upload).to have_received(:save!) end end end