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# ==== Purpose ====
#
# This test intends to test that the MySQL upgrade process will create the
# default user for the server session service.
# If such a user already exists we test to see if it has the valid privileges
#
# ==== Implementation ====
#
# 1) Delete the user. See that MySQL upgrade re-creates it
# 2) Remove the user Super privileges, The MySQL upgrade process errors out.
# 3) Remove the user Select privileges on performance schema. Again an error
# 4) Clean up
#
# ==== References ====
#
# Bug#25642343: THE SERVER SHOULD HAVE A DEFAULT USER FOR THE SERVER SESION SERVICE
#

-- source include/no_valgrind_without_big.inc
-- source include/mysql_upgrade_preparation.inc

let $date_to_restore=`SELECT password_last_changed from mysql.user where user='mysql.session'`;
let $date_to_restore_priv=`SELECT timestamp from mysql.tables_priv where user='mysql.session'`;

--echo #
--echo # Delete the user
--echo # Check that upgrade recreates it
--echo #

DELETE FROM mysql.user WHERE user='mysql.session';

--echo Run mysql_upgrade
--exec $MYSQL_UPGRADE --skip-verbose --force 2>&1

--let $assert_text= The session user should exist after upgrade
--let $assert_cond= "[SELECT COUNT(*) FROM mysql.user WHERE user=\'mysql.session\']" = 1
--source include/assert.inc

--echo #
--echo # Change some user privileges, making it invalid
--echo #

# No super privileges
UPDATE mysql.user SET Super_priv ='N' WHERE USER= 'mysql.session';

--echo Run mysql_upgrade
--error 5
--exec $MYSQL_UPGRADE --skip-verbose --force 2>&1

UPDATE mysql.user SET Super_priv ='Y' WHERE USER= 'mysql.session';

# No privileges on performance schema
UPDATE mysql.tables_priv SET Table_priv ='' WHERE USER= 'mysql.session';

--echo Run mysql_upgrade
--error 5
--exec $MYSQL_UPGRADE --skip-verbose --force 2>&1

--echo #
--echo # Clean up
--echo #

UPDATE mysql.tables_priv SET Table_priv ='Select' WHERE USER= 'mysql.session';

--disable_query_log ONCE
--eval UPDATE mysql.tables_priv SET timestamp ='$date_to_restore_priv' WHERE USER= 'mysql.session'
--disable_query_log ONCE
--eval UPDATE mysql.user SET password_last_changed= '$date_to_restore' WHERE USER= 'mysql.session'

--source include/mysql_upgrade_cleanup.inc

--echo
--echo End of tests