--source include/no_view_protocol.inc
--source include/not_embedded.inc

CREATE ROLE IF NOT EXISTS role1 WITH ADMIN user1;
SELECT * FROM mysql.roles_mapping;
DROP ROLE role1;

CREATE OR REPLACE ROLE role1 WITH ADMIN user2;
SELECT * FROM mysql.roles_mapping WHERE Role='role1';
CREATE OR REPLACE ROLE role1 WITH ADMIN user3;
SELECT * FROM mysql.roles_mapping WHERE Role='role1';
CREATE ROLE IF NOT EXISTS role1 WITH ADMIN user4;
SELECT * FROM mysql.roles_mapping WHERE Role='role1';
DROP ROLE IF EXISTS role1;
SELECT * FROM mysql.roles_mapping WHERE Role='role1';
DROP ROLE IF EXISTS role1;


CREATE ROLE role_1;

CREATE ROLE IF NOT EXISTS role_1;
CREATE OR REPLACE ROLE role_1;

--error ER_WRONG_USAGE
CREATE OR REPLACE ROLE IF NOT EXISTS role_1;

--error ER_CANNOT_USER
CREATE ROLE role_1;

CREATE USER u1@localhost;
REVOKE SHOW DATABASES ON *.* FROM 'u1'@'localhost';
GRANT SHOW DATABASES ON *.* TO role_1;
GRANT role_1 TO u1@localhost;

connect (user_a, localhost, u1,,);
connection user_a;

SELECT CURRENT_USER;

SHOW DATABASES;
SELECT CURRENT_ROLE;
SET ROLE role_1;
SELECT CURRENT_ROLE;
SHOW DATABASES;
SET ROLE NONE;

connect (user_b, localhost, root,,);
connection user_b;

--echo # Clearing up
DROP ROLE role_1;
DROP ROLE IF EXISTS role_1;

--error ER_CANNOT_USER
DROP ROLE role_1;

DROP USER u1@localhost;

# MDEV-17942
CREATE ROLE r;
GRANT SHOW DATABASES ON *.* TO r;
CREATE USER foo;
CREATE USER bar;
GRANT r TO foo;
--error ER_PLUGIN_IS_NOT_LOADED
CREATE OR REPLACE USER foo IDENTIFIED WITH non_existing_plugin;
DROP ROLE r;
DROP USER bar;