require 'spec_helper'

describe CreateTagService, services: true do
  let(:project) { create(:project) }
  let(:repository) { project.repository }
  let(:user) { create(:user) }
  let(:service) { described_class.new(project, user) }

  describe '#execute' do
    it 'creates the tag and returns success' do
      response = service.execute('v42.42.42', 'master', 'Foo')

      expect(response[:status]).to eq(:success)
      expect(response[:tag]).to be_a Gitlab::Git::Tag
      expect(response[:tag].name).to eq('v42.42.42')
    end

    context 'when target is invalid' do
      it 'returns an error' do
        response = service.execute('v1.1.0', 'foo', 'Foo')

        expect(response).to eq(status: :error,
                               message: 'Target foo is invalid')
      end
    end

    context 'when tag already exists' do
      it 'returns an error' do
        expect(repository).to receive(:add_tag).
          with(user, 'v1.1.0', 'master', 'Foo').
          and_raise(Rugged::TagError)

        response = service.execute('v1.1.0', 'master', 'Foo')

        expect(response).to eq(status: :error,
                               message: 'Tag v1.1.0 already exists')
      end
    end

    context 'when pre-receive hook fails' do
      it 'returns an error' do
        expect(repository).to receive(:add_tag).
          with(user, 'v1.1.0', 'master', 'Foo').
          and_raise(GitHooksService::PreReceiveError)

        response = service.execute('v1.1.0', 'master', 'Foo')

        expect(response).to eq(status: :error,
                               message: 'Tag creation was rejected by Git hook')
      end
    end
  end
end
