require 'rails_helper' describe Projects::BlobController do let(:project) { create(:project) } let(:user) { create(:user) } before do user = create(:user) project.team << [user, :master] sign_in(user) end describe 'GET diff' do render_views def do_get(opts = {}) params = { namespace_id: project.namespace.to_param, project_id: project.to_param, id: 'master/CHANGELOG' } get :diff, params.merge(opts) end context 'when essential params are missing' do it 'renders nothing' do do_get expect(response.body).to be_blank end end context 'when essential params are present' do it 'renders the diff content' do do_get(since: 1, to: 5, offset: 10) expect(response.body).to be_present end end end end