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path: root/spec/services/releases/create_service_spec.rb
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require 'spec_helper'

describe Releases::CreateService do
  let(:project) { create(:project, :repository) }
  let(:user) { create(:user) }
  let(:tag_name) { project.repository.tag_names.first }
  let(:tag_sha) { project.repository.find_tag(tag_name).dereferenced_target.sha }
  let(:name) { 'Bionic Beaver' }
  let(:description) { _('Awesome release!') }
  let(:params) { { tag: tag_name, name: name, description: description, ref: ref } }
  let(:ref) { nil }
  let(:service) { described_class.new(project, user, params) }

  before do
    project.add_maintainer(user)
  end

  describe '#execute' do
    shared_examples 'a successful release creation' do
      it 'creates a new release' do
        result = service.execute
        expect(result[:status]).to eq(:success)
        expect(result[:tag]).not_to be_nil
        expect(result[:release]).not_to be_nil
        expect(result[:release].description).to eq(description)
        expect(result[:release].name).to eq(name)
        expect(result[:release].author).to eq(user)
        expect(result[:release].sha).to eq(tag_sha)
      end
    end

    it_behaves_like 'a successful release creation'

    context 'when the tag does not exist' do
      let(:tag_name) { 'non-exist-tag' }

      it 'raises an error' do
        result = service.execute

        expect(result[:status]).to eq(:error)
      end
    end

    context 'when ref is provided' do
      let(:ref) { 'master' }
      let(:tag_name) { 'foobar' }

      it_behaves_like 'a successful release creation'

      it 'creates a tag if the tag does not exist' do
        expect(project.repository.ref_exists?("refs/tags/#{tag_name}")).to be_falsey

        result = service.execute
        expect(result[:status]).to eq(:success)
        expect(result[:tag]).not_to be_nil
        expect(result[:release]).not_to be_nil
      end
    end

    context 'there already exists a release on a tag' do
      let!(:release) do
        create(:release, project: project, tag: tag_name, description: description)
      end

      it 'raises an error and does not update the release' do
        result = service.execute
        expect(result[:status]).to eq(:error)
        expect(project.releases.find_by(tag: tag_name).description).to eq(description)
      end
    end
  end
end