source include/not_embedded.inc;

#create a user with no privileges
create user 'test_user'@'localhost';
create role test_role1;

grant test_role1 to test_user@localhost;
--sorted_result
select user, host from mysql.user where user not like 'root';
--sorted_result
select * from mysql.roles_mapping;

grant select on mysql.* to test_role1;
grant insert, delete on mysql.roles_mapping to test_role1;

grant reload on *.* to test_role1;

change_user 'test_user';

--error ER_TABLEACCESS_DENIED_ERROR
select * from mysql.roles_mapping;

select current_user(), current_role();
set role test_role1;
select current_user(), current_role();
--sorted_result
select * from mysql.roles_mapping;
--error ER_TABLEACCESS_DENIED_ERROR
insert into mysql.user (user, host) values ('Dummy', 'Dummy');
insert into mysql.roles_mapping values ('localhost', 'test_user', 'test_role2', 'N');
delete from mysql.roles_mapping where Role='test_role2';

use mysql;

set role none;
select current_user(), current_role();

--error ER_DBACCESS_DENIED_ERROR
use mysql;
--error ER_TABLEACCESS_DENIED_ERROR
select * from mysql.roles_mapping;
--error ER_TABLEACCESS_DENIED_ERROR
insert into mysql.user (user, host) values ('Dummy', 'Dummy');
--error ER_TABLEACCESS_DENIED_ERROR
insert into mysql.roles_mapping values ('localhost', 'test_user', 'test_role2', 'N');
--error ER_TABLEACCESS_DENIED_ERROR
delete from mysql.roles_mapping where Role='test_role2';

change_user 'root';
drop user 'test_user'@'localhost';
revoke select on mysql.* from test_role1;
revoke insert, delete on mysql.roles_mapping from test_role1;
drop role test_role1;
delete from mysql.roles_mapping where Role='test_role1';
flush privileges;