spec/migrations/schedule_populate_merge_request_metrics_with_events_data_spec.rb


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require 'spec_helper'
require Rails.root.join('db', 'post_migrate', '20171128214150_schedule_populate_merge_request_metrics_with_events_data.rb')

describe SchedulePopulateMergeRequestMetricsWithEventsData, :migration, :sidekiq do
  # commits_count attribute is added in a next migration
  before do
    allow_any_instance_of(MergeRequestDiff)
      .to receive(:commits_count=).and_return(nil)
  end

  let!(:mrs) { create_list(:merge_request, 3) }

  it 'correctly schedules background migrations' do
    stub_const("#{described_class.name}::BATCH_SIZE", 2)

    Sidekiq::Testing.fake! do
      Timecop.freeze do
        migrate!

        expect(described_class::MIGRATION)
          .to be_scheduled_delayed_migration(10.minutes, mrs.first.id, mrs.second.id)

        expect(described_class::MIGRATION)
          .to be_scheduled_delayed_migration(20.minutes, mrs.third.id, mrs.third.id)

        expect(BackgroundMigrationWorker.jobs.size).to eq(2)
      end
    end
  end
end