source include/not_embedded.inc;

# This test checks setting a default role to a different user;


create user user_a@localhost;
create user user_b@localhost;

create role role_a;
create role role_b;

grant role_a to user_a@localhost;
grant role_b to user_b@localhost;

grant role_a to user_a@localhost;
grant select on *.* to role_a;

grant role_b to user_b@localhost;
grant insert, update on *.* to role_b;

change_user 'user_a';

# A user should not be a able to set a default role for someone else,
# if he hasn't got write access to the database.
--error ER_DBACCESS_DENIED_ERROR
set default role role_a for user_b@localhost;

# Should have the same effect as set default role role_a.
set default role role_a for user_a@localhost;

change_user 'root';

# Not even a 'root' user should be able to set an invalid role for a user.
--error ER_INVALID_ROLE
set default role invalid_role for user_a@localhost;

--error ER_INVALID_ROLE
set default role role_b for user_a@localhost;

# Make sure we can set a default role for a different user than the one that
# is actually running the command.
set default role role_b for user_b@localhost;

change_user 'user_a';

show grants;
--sorted_result
select user, host, default_role from mysql.user where user like 'user_%';

set default role NONE for current_user;
--sorted_result
select user, host, default_role from mysql.user where user like 'user_%';

set default role current_role for current_user;
--sorted_result
select user, host, default_role from mysql.user where user like 'user_%';

# Make sure we can't set a default role not granted to us, using current_user
--error ER_INVALID_ROLE
set default role role_b for current_user;

change_user 'user_b';

show grants;
--error ER_TABLEACCESS_DENIED_ERROR
select user, host, default_role from mysql.user where user like 'user_%';

# Since we have update privileges on the mysql.user table, we should
# be able to set a default role for a different user.
set default role NONE for user_a@localhost;

change_user 'user_a';

# There is no default role set any more.
show grants;
--error ER_TABLEACCESS_DENIED_ERROR
select user, host, default_role from mysql.user where user like 'user_%';

change_user 'root';

drop role role_a;
drop role role_b;
drop user user_a@localhost;
drop user user_b@localhost;