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path: root/spec/services/issues/duplicate_service_spec.rb
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require 'spec_helper'

describe Issues::DuplicateService do
  let(:user) { create(:user) }
  let(:canonical_project) { create(:project) }
  let(:duplicate_project) { create(:project) }

  let(:canonical_issue) { create(:issue, project: canonical_project) }
  let(:duplicate_issue) { create(:issue, project: duplicate_project) }

  subject { described_class.new(duplicate_project, user, {}) }

  describe '#execute' do
    context 'when the issues passed are the same' do
      it 'does nothing' do
        expect(subject).not_to receive(:close_service)
        expect(SystemNoteService).not_to receive(:mark_duplicate_issue)
        expect(SystemNoteService).not_to receive(:mark_canonical_issue_of_duplicate)

        subject.execute(duplicate_issue, duplicate_issue)
      end
    end

    context 'when the user cannot update the duplicate issue' do
      before do
        canonical_project.add_reporter(user)
      end

      it 'does nothing' do
        expect(subject).not_to receive(:close_service)
        expect(SystemNoteService).not_to receive(:mark_duplicate_issue)
        expect(SystemNoteService).not_to receive(:mark_canonical_issue_of_duplicate)

        subject.execute(duplicate_issue, canonical_issue)
      end
    end

    context 'when the user cannot comment on the canonical issue' do
      before do
        duplicate_project.add_reporter(user)
      end

      it 'does nothing' do
        expect(subject).not_to receive(:close_service)
        expect(SystemNoteService).not_to receive(:mark_duplicate_issue)
        expect(SystemNoteService).not_to receive(:mark_canonical_issue_of_duplicate)

        subject.execute(duplicate_issue, canonical_issue)
      end
    end

    context 'when the user can mark the issue as a duplicate' do
      before do
        canonical_project.add_reporter(user)
        duplicate_project.add_reporter(user)
      end

      it 'closes the duplicate issue' do
        subject.execute(duplicate_issue, canonical_issue)

        expect(duplicate_issue.reload).to be_closed
        expect(canonical_issue.reload).to be_open
      end

      it 'adds a system note to the duplicate issue' do
        expect(SystemNoteService)
          .to receive(:mark_duplicate_issue).with(duplicate_issue, duplicate_project, user, canonical_issue)

        subject.execute(duplicate_issue, canonical_issue)
      end

      it 'adds a system note to the canonical issue' do
        expect(SystemNoteService)
          .to receive(:mark_canonical_issue_of_duplicate).with(canonical_issue, canonical_project, user, duplicate_issue)

        subject.execute(duplicate_issue, canonical_issue)
      end
    end
  end
end