Make sure that page_entries_info works for every view adapter

kaminari-core/test/fake_app/rails_app.rb

@@ -36,6 +36,7 @@ class UsersController < ApplicationController
     render inline: <<-ERB
 <%= @users.map(&:name).join("\n") %>
 <%= paginate @users %>
+<div class="info"><%= page_entries_info @users %></div>
 ERB
   end
 

kaminari-core/test/requests/navigation_test.rb

@@ -59,5 +59,9 @@ class NavigationTest < Test::Unit::TestCase
         assert page.has_content? '1'
       end
     end
+
+    within 'div.info' do
+      assert page.has_text? 'Displaying users 1'
+    end
   end
 end