connect (mysql, localhost, root,,);
use mysql;

#test valid syntax
--error ER_PARSE_ERROR
create role test_role1@host1;
--error ER_PARSE_ERROR
create role test_role2@host2, test_role1@host1;

create role test_role1;
create role test_role2, test_role3;

--sorted_result
select user, host, is_role from user where user like 'test%';

drop role test_role1;
drop role test_role2, test_role3;


create role test_role1;
--error ER_CANNOT_USER
create role test_role1;
--error ER_CANNOT_USER
create role test_role1, test_role2;

--sorted_result
select user, host, is_role from user where user like 'test%';

drop role test_role1;
--error ER_CANNOT_USER
drop role test_role1;
--error ER_CANNOT_USER
drop role test_role1, test_role2;

#test that we can not drop users when calling drop role
--error ER_CANNOT_USER
drop role root;
create user dummy@'';
--error ER_CANNOT_USER
drop role dummy;
drop user dummy@'';

--sorted_result
select user, host, is_role from user where user like 'test%';
disconnect mysql;