def testInterfaces(self): """ Test presence of interfaces (+z3 interfaces obtained by ZCML) """ from Products.PloneArticle.interfaces import INonStructuralFolder from Products.PloneArticle.interfaces import IPloneArticle from Products.ATContentTypes.interface import IATDocument article = self.article self.failUnless(INonStructuralFolder.isImplementedBy(article)) self.failUnless(IPloneArticle.isImplementedBy(article)) self.failUnless(IATDocument.isImplementedBy(article))