def test_is_organiser(self):
        """check if a user is an organiser"""
        checker = PermissionsChecker()
        self.injector.inject(self.tourn_1)
        creator = '{}_creator'.format(self.tourn_1)

        options = [None, 'ranking_test', 'not_a_tournament', '', 'lisa', \
            'not_a_person', 'superman', 'permission_test', self.tourn_1, \
            creator]

        self.assertTrue(checker.is_organiser(creator, self.tourn_1))

        for user in options:
            for tourn in options:
                if user == creator and tourn == self.tourn_1:
                    self.assertTrue(checker.is_organiser(user, tourn))
                else:
                    self.assertFalse(checker.is_organiser(user, tourn))