add attachments existence assertion to IssuesControllerTest#test_get_bulk_copy

git-svn-id: http://svn.redmine.org/redmine/trunk@19920 e93f8b46-1217-0410-a6f0-8f06a7374b81

test/functional/issues_controller_test.rb

   end
 
   def test_get_bulk_copy
+    assert_not Issue.find(1).attachments.any?
+    assert Issue.find(2).attachments.any?
+    assert Issue.find(3).attachments.any?
+
     @request.session[:user_id] = 2
     get(
       :bulk_edit,