def test_list_filter_invalid_value_format(self):
        """
        MVC: Test Filter with invalid value of date filter
        """
        with self.app.test_client() as c:
            self.browser_login(c, USERNAME_ADMIN, PASSWORD_ADMIN)

            #  Greater than wrong value
            rv = c.get("/users/list/?_flt_1_created_on=wrongvalue")
            self.assertEqual(rv.status_code, 200)

            #  Smaller than wrong value
            rv = c.get("/users/list/?_flt_2_created_on=wrongvalue")
            self.assertEqual(rv.status_code, 200)

        MVC: Test Filter with invalid value of date filter
        
tests/test_mvc.py