Adapt 'show' view for open questions without options

- Prevent creating options for open questions
- Skip rendering the options table when none exist

spec/models/abilities/administrator_spec.rb

@@ -20,6 +20,8 @@ describe Abilities::Administrator do
   let(:future_poll) { create(:poll, :future) }
   let(:current_poll_question) { create(:poll_question) }
   let(:future_poll_question) { create(:poll_question, poll: future_poll) }
+  let(:future_poll_question_open) { create(:poll_question_open, poll: future_poll) }
+  let(:future_poll_question_option_open) { future_poll_question_open.question_options.new }
   let(:current_poll_question_option) { create(:poll_question_option) }
   let(:future_poll_question_option) { create(:poll_question_option, poll: future_poll) }
   let(:current_poll_option_video) { create(:poll_option_video, option: current_poll_question_option) }
@@ -143,6 +145,9 @@ describe Abilities::Administrator do
   it { should_not be_able_to(:create, current_poll_question_option) }
   it { should_not be_able_to(:update, current_poll_question_option) }
   it { should_not be_able_to(:destroy, current_poll_question_option) }
+  it { should_not be_able_to(:create,  future_poll_question_option_open) }
+  it { should_not be_able_to(:update,  future_poll_question_option_open) }
+  it { should_not be_able_to(:destroy, future_poll_question_option_open) }
 
   it { should be_able_to(:create, future_poll_option_video) }
   it { should be_able_to(:update, future_poll_option_video) }

spec/system/admin/poll/questions_spec.rb

@@ -89,6 +89,8 @@ describe "Admin poll questions", :admin do
         expect(page).to have_content "Question with unique answer"
         expect(page).to have_content "Unique answer"
         expect(page).not_to have_content "Maximum number of votes"
+        expect(page).to have_link "Add answer"
+        expect(page).to have_table "Valid answers"
       end
 
       scenario "Multiple" do
@@ -106,6 +108,8 @@ describe "Admin poll questions", :admin do
         expect(page).to have_content "Question with multiple answers"
         expect(page).to have_content "Multiple answers"
         expect(page).to have_text "Maximum number of votes 6", normalize_ws: true
+        expect(page).to have_link "Add answer"
+        expect(page).to have_table "Valid answers"
       end
 
       scenario "Open-ended" do
@@ -122,6 +126,8 @@ describe "Admin poll questions", :admin do
         expect(page).to have_content "What do you want?"
         expect(page).to have_content "Open-ended"
         expect(page).not_to have_content "Maximum number of votes"
+        expect(page).not_to have_link "Add answer"
+        expect(page).not_to have_table "Valid answers"
       end
     end
   end