require 'spec_helper' describe Projects::EnableDeployKeyService do let(:deploy_key) { create(:deploy_key, public: true) } let(:project) { create(:project) } let(:user) { project.creator} let!(:params) { { key_id: deploy_key.id } } it 'enables the key' do expect do service.execute end.to change { project.deploy_keys.count }.from(0).to(1) end context 'trying to add an unaccessable key' do let(:another_key) { create(:another_key) } let!(:params) { { key_id: another_key.id } } it 'returns nil if the key cannot be added' do expect(service.execute).to be nil end end context 'add the same key twice' do before do project.deploy_keys << deploy_key end it 'returns existing key' do expect(service.execute).to eq(deploy_key) end end def service Projects::EnableDeployKeyService.new(project, user, params) end end