Update feature tests to cover adding a "None of the above" question

Author: stephencdaly

spec/features/form/add_or_edit_questions/add_a_question_for_each_type_of_answer_spec.rb

@@ -222,7 +222,13 @@ def fill_in_selection_options(options)
     fill_in "Option 2", with: options[1]
     click_button "Add another option"
     fill_in "Option 3", with: options[2]
-    choose "Yes"
+    choose "Yes, and let people provide a different answer"
+    click_button "Continue"
+
+    expect(page.find("h1")).to have_text "Ask for an answer if someone selects ‘None of the above’"
+    expect_page_to_have_no_axe_errors(page)
+    fill_in "Enter a question or label for the text box", with: "Enter your own option"
+    choose "Mandatory"
     click_button "Continue"
 
     click_link "Change Options"