```ruby
let(:user) { FactoryGirl.create(:user, :confirmed) }
let!(:event) { FactoryGirl.create(:event, user: user) }
 
before { sign_in_wit(user.email, '123456') }

subject { page }

it { should have_selector('td', 'Nothing') }

context 'when I am not an event creator' do
  let!(:event) { FactoryGirl.create(:event) }

  it { should_not have_selector('td', 'Nothing') }
end

```