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path: root/spec/workers/project_cache_worker_spec.rb
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# frozen_string_literal: true

require 'spec_helper'

describe ProjectCacheWorker do
  include ExclusiveLeaseHelpers

  let(:worker) { described_class.new }
  let(:project) { create(:project, :repository) }
  let(:lease_key) { ["project_cache_worker", project.id, *statistics.sort].join(":") }
  let(:lease_timeout) { ProjectCacheWorker::LEASE_TIMEOUT }
  let(:statistics) { [] }

  describe '#perform' do
    before do
      stub_exclusive_lease(lease_key, timeout: lease_timeout)
    end

    context 'with a non-existing project' do
      it 'does nothing' do
        expect(worker).not_to receive(:update_statistics)

        worker.perform(-1)
      end
    end

    context 'with an existing project without a repository' do
      it 'updates statistics but does not refresh the method cashes' do
        allow_any_instance_of(Repository).to receive(:exists?).and_return(false)

        expect(worker).to receive(:update_statistics)
        expect_any_instance_of(Repository).not_to receive(:refresh_method_caches)

        worker.perform(project.id)
      end
    end

    context 'with an existing project' do
      before do
        lease_key = "namespace:namespaces_root_statistics:#{project.namespace_id}"
        stub_exclusive_lease_taken(lease_key, timeout: Namespace::AggregationSchedule::DEFAULT_LEASE_TIMEOUT)
      end

      it 'refreshes the method caches' do
        expect_any_instance_of(Repository).to receive(:refresh_method_caches)
          .with(%i(readme))
          .and_call_original

        worker.perform(project.id, %w(readme))
      end

      context 'with statistics' do
        let(:statistics) { %w(repository_size) }

        it 'updates the project statistics' do
          expect(worker).to receive(:update_statistics)
            .with(kind_of(Project), statistics)
            .and_call_original

          worker.perform(project.id, [], statistics)
        end
      end

      context 'with plain readme' do
        it 'refreshes the method caches' do
          allow(MarkupHelper).to receive(:gitlab_markdown?).and_return(false)
          allow(MarkupHelper).to receive(:plain?).and_return(true)

          expect_any_instance_of(Repository).to receive(:refresh_method_caches)
                                                  .with(%i(readme))
                                                  .and_call_original
          worker.perform(project.id, %w(readme))
        end
      end
    end
  end

  describe '#update_statistics' do
    let(:statistics) { %w(repository_size) }

    context 'when a lease could not be obtained' do
      it 'does not update the project statistics' do
        stub_exclusive_lease_taken(lease_key, timeout: lease_timeout)

        expect(Projects::UpdateStatisticsService).not_to receive(:new)

        expect(UpdateProjectStatisticsWorker).not_to receive(:perform_in)

        expect(Namespaces::ScheduleAggregationWorker)
          .not_to receive(:perform_async)
          .with(project.namespace_id)

        worker.update_statistics(project, statistics)
      end
    end

    context 'when a lease could be obtained' do
      it 'updates the project statistics twice' do
        stub_exclusive_lease(lease_key, timeout: lease_timeout)

        expect(Projects::UpdateStatisticsService).to receive(:new)
          .with(project, nil, statistics: statistics)
          .and_call_original
          .twice

        expect(UpdateProjectStatisticsWorker).to receive(:perform_in)
          .with(lease_timeout, project.id, statistics)
          .and_call_original

        expect(Namespaces::ScheduleAggregationWorker)
          .to receive(:perform_async)
          .with(project.namespace_id)
          .twice

        worker.update_statistics(project, statistics)
      end
    end
  end
end