def test_readby_interface(self):
self.failUnless(IReadByProvider.providedBy(self.obj))
def is_markable(self, obj=None, path=None, uid=None):
""" returns ttrue iff an obj is markable as read/unread
"""
if not obj:
obj = self._getObject(path=path, uid=uid)
return IReadByProvider.providedBy(obj)