#
# MDEV-5668 Assertion `granted_role->is_role()' fails on granting role with empty name
#
--error ER_INVALID_ROLE
grant '' to foo@localhost;

#
# MDEV-5238 Server crashes in find_role_grant_pair on SHOW GRANTS for an anonymous user
#
--source include/not_embedded.inc

create user ''@localhost;
create role r1;
grant r1 to ''@localhost;

--connect (con1,localhost,nonexisting_user,,)
select current_user;
show grants;

connection default;
drop role r1;
drop user ''@localhost;