trying to stabilize issue with datetime in test suite

spec/lib/diaspora/fetcher/public_spec.rb

@@ -92,7 +92,7 @@ describe PublicFetcher do
           date = ActiveSupport::TimeZone.new('UTC').parse(post['created_at']).to_datetime
 
           entry = StatusMessage.find_by_guid(post['guid'])
-          entry.created_at.should eql(date)
+          entry.created_at.to_datetime.should eql(date)
         end
       end
 
@@ -108,7 +108,7 @@ describe PublicFetcher do
           date = ActiveSupport::TimeZone.new('UTC').parse(@now.to_s).to_datetime
 
           entry = StatusMessage.find_by_guid(post['guid'])
-          entry.interacted_at.should eql(date)
+          entry.interacted_at.to_datetime.should eql(date)
         end
       end
     end