'Check all user stores.'

def _CheckUsers(self, all_users):

    summary = self.fd.GetSummary()
    self.assertItemsEqual([x.username for x in summary.users], all_users)
    self.assertItemsEqual(self.fd.Get(self.fd.Schema.USERNAMES), all_users)
    kbusers = [x.username for x in self.fd.Get(self.fd.Schema.KNOWLEDGE_BASE).users]
    self.assertItemsEqual(kbusers, all_users)
