Merge #​2659 "Use Rails transactional tests"

spec/features/commercials_spec.rb

@@ -85,7 +85,6 @@ feature Commercial do
       click_button 'Update'
       page.find('#flash')
       expect(flash).to eq('Commercial was successfully updated.')
-      TransactionalCapybara::AjaxHelpers.wait_for_ajax(page)
       expect(event.commercials.count).to eq(1)
       commercial.reload
       expect(commercial.url).to eq('https://www.youtube.com/watch?v=M9bq_alk-sw')
@@ -118,7 +117,6 @@ feature Commercial do
       end
       page.find('#flash')
       expect(flash).to eq('Commercial was successfully destroyed.')
-      TransactionalCapybara::AjaxHelpers.wait_for_ajax(page)
       expect(event.commercials.count).to eq(0)
     end
   end

spec/features/proposals_spec.rb

@@ -127,7 +127,6 @@ feature Event do
 
       page.find('#flash')
       expect(page).to have_content 'Proposal was successfully submitted.'
-      TransactionalCapybara::AjaxHelpers.wait_for_ajax(page)
       expect(current_path).to eq(conference_program_proposals_path(conference.short_title))
       expect(Event.count).to eq(expected_count)
     end

spec/features/versions_spec.rb

@@ -389,7 +389,7 @@ feature 'Version' do
     click_link 'Comments (0)'
     fill_in 'comment_body', with: 'Sample comment'
     click_button 'Add Comment'
-    TransactionalCapybara::AjaxHelpers.wait_for_ajax(page)
+    expect(page).to have_text('Comments (1)')
     Comment.last.destroy
     PaperTrail::Version.last.reify.save