• Possible bug in test?

 

When I hit to Check/submit my code, there's a test that keeps failing at: boolean(0,0,u"conjunction"). I can only think this was a typo?

From: http://www.checkio.org/mission/boolean-algebra/solve/

HTTP_USER_AGENT:

Mozilla/5.0 (Windows NT 6.1; WOW64; rv:39.0) Gecko/20100101 Firefox/39.0