source include/not_embedded.inc;

create role role1;

--error ER_INVALID_ROLE
create role none;
--error ER_INVALID_ROLE
create role public;
--error ER_CANNOT_USER
drop role none;

--error ER_INVALID_ROLE
grant none to role1;
--error ER_INVALID_ROLE
grant role1 to none;
--error ER_INVALID_ROLE
grant select on *.* to none;
--error ER_INVALID_ROLE
grant public to role1;
--error ER_INVALID_ROLE
grant role1 to public;
--error ER_INVALID_ROLE
grant select on *.* to public;

--error ER_INVALID_ROLE
grant role1 to current_role;

--error ER_INVALID_ROLE
revoke none from role1;
--error ER_INVALID_ROLE
revoke role1 from none;
--error ER_INVALID_ROLE
revoke select on *.* from none;
--error ER_INVALID_ROLE
revoke public from role1;
--error ER_INVALID_ROLE
revoke role1 from public;
--error ER_INVALID_ROLE
revoke select on *.* from public;

--error ER_INVALID_ROLE
show grants for none;
--error ER_INVALID_ROLE
show grants for public;

--error ER_INVALID_ROLE
create definer=none view test.v1 as select 1;
--error ER_INVALID_ROLE
create definer=public view test.v1 as select 1;

drop role role1;

optimize table mysql.user; # to remove deleted rows and have stable row order
insert ignore mysql.user (user, is_role) values ('none', 'Y'), ('public', 'Y');
flush privileges;
delete from mysql.user where is_role='Y';