ruby-on-rails - Rspec：声明一个变量，该变量将作为记录创建到方法中

Question

我对 Rails 很陌生，但我似乎面临着一个我无法解决的问题。我正在尝试测试将创建新记录并稍后使用它来实例化新服务的后台作业。

当我正在测试后台作业时，似乎我应该在测试之前将这项服务加倍，但是其中一个参数是在作业中创建的，使用在作业中创建的另一条记录作为参考。因此，每次我尝试运行它时，ID 总是会有所不同。

这是示例代码：

RSpec.describe UpdateVideoPerfDatasJob, :type => :job do
  it { expect(described_class).to be < ActiveJob::Base }
  context '#perform' do
    let (:split_test) { create(:split_test_for_result_slot) }
    let(:adwords_account) { split_test.adwords_account }
    let(:user) { split_test.adwords_account.user }
    let(:report_service) { instance_double('VideoPerformanceReportBis') }
    let(:api_service) { instance_double('GoogleAdsApiWrapper') }

    let(:campaigns_datas) { '#2 Api called...' }
    let(:segments_datas) { '#3 Api called...' }
    let(:data) { '#4 Global Array Created' }

    before do
      allow(VideoPerformanceReportBis).to receive(:new).with(split_test: split_test, adwords_account: adwords_account, user: user, result_slot: result_slot).and_return(report_service)
      allow(GoogleAdsApiWrapper).to receive(:new).with(adwords_account: adwords_account, user: user).and_return(api_service)
      allow(report_service).to receive(:refresh).with(no_args).and_return('#1 Refresh method')
      allow(report_service).to receive(:call_api_campaigns).with(no_args).and_return(campaigns_datas)
      allow(api_service).to receive(:get_campaigns).with(no_args).and_return('...and campaign gotten !')
      allow(report_service).to receive(:call_api_segments).with(no_args).and_return(segments_datas)
      allow(api_service).to receive(:get_campaigns_segments).with(no_args).and_return('... and segments gotten !')
      allow(report_service).to receive(:create_global_array).with(campaigns_datas, segments_datas).and_return(data)
      allow(report_service).to receive(:update).with(data).and_return('#5 update data')

class UpdateVideoPerfDatasJob < ApplicationJob
  def perform(split_test:, adwords_account:, user:)
    logger.warn 'Updating video performance data'

    history_log = HistoryLog.create(
      split_test: split_test,
      user: user,
      adwords_account: adwords_account,
      operation: 'Update vidéo performance data',
      messages: '',
      status: 'Initiated'
    )

    result_slot = ResultSlot.create(
      split_test: split_test,
      history_log: history_log,
    )

    result_slot.previous_result_slot_id = split_test.result_slot.id unless split_test.result_slot.nil?

    report_service = VideoPerformanceReportBis.new(
      split_test: split_test,
      adwords_account: adwords_account,
      user: user,
      result_slot: result_slot
    )

    response = report_service.refresh
    history_log.update!(
      messages: "Data updated on #{Date.today}",
      status: 'Video performance data updated'
    )
    NotificationsChannel.broadcast_to user, 'Finished Update Video Performance Data Worker'
  end
end

如您所见，VideoPerformanceReportService 使用 result_slot 作为参数，该参数在作业内部创建，使用 history_log（也在作业内部创建）作为参考。

我该如何测试呢？

（提前感谢大家的帮助）

标签： ruby-on-railsrspecsidekiqrspec-mocks