spec/lib/gitlab/github_import/importer/attachments/merge_requests_importer_spec.rb


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# frozen_string_literal: true

require 'spec_helper'

RSpec.describe Gitlab::GithubImport::Importer::Attachments::MergeRequestsImporter, feature_category: :importers do
  subject(:importer) { described_class.new(project, client) }

  let_it_be(:project) { create(:project) }

  let(:client) { instance_double(Gitlab::GithubImport::Client) }

  describe '#sequential_import', :clean_gitlab_redis_cache do
    let_it_be(:mr) { create(:merge_request, source_project: project, target_branch: 'feature1') }

    let_it_be(:mr_with_attachment) do
      create(:merge_request,
        source_project: project,
        target_branch: 'feature2',
        description: "![image](https://user-images.githubusercontent.com/1/uuid-1.png)"
      )
    end

    it 'selects both merge requests, and selects only properties it needs' do
      stubbed_collection = class_double(MergeRequest, each_batch: [])

      expect(project.merge_requests).to receive(:id_not_in).with([]).and_return(stubbed_collection)
      expect(stubbed_collection).to receive(:select).with(:id, :description, :iid).and_return(stubbed_collection)

      importer.sequential_import
    end

    it 'executes importer only for the merge request with an attachment' do
      expect_next_instance_of(
        Gitlab::GithubImport::Importer::NoteAttachmentsImporter,
        have_attributes(record_db_id: mr_with_attachment.id),
        project,
        client
      ) do |importer|
        expect(importer).to receive(:execute)
      end

      importer.sequential_import
    end

    context 'when merge request has already been processed' do
      before do
        importer.mark_as_imported(mr_with_attachment)
      end

      it 'does not select merge requests that were processed' do
        expect(project.merge_requests).to receive(:id_not_in).with([mr_with_attachment.id.to_s]).and_call_original

        importer.sequential_import
      end

      it 'does not execute importer for the merge request with an attachment' do
        expect(Gitlab::GithubImport::Importer::NoteAttachmentsImporter).not_to receive(:new)

        importer.sequential_import
      end
    end
  end

  describe '#sidekiq_worker_class' do
    it { expect(importer.sidekiq_worker_class).to eq(Gitlab::GithubImport::Attachments::ImportMergeRequestWorker) }
  end

  describe '#collection_method' do
    it { expect(importer.collection_method).to eq(:merge_request_attachments) }
  end

  describe '#object_type' do
    it { expect(importer.object_type).to eq(:merge_request_attachment) }
  end

  describe '#id_for_already_imported_cache' do
    let(:merge_request) { build_stubbed(:merge_request) }

    it { expect(importer.id_for_already_imported_cache(merge_request)).to eq(merge_request.id) }
  end
end