--source include/have_wsrep.inc

--echo #
--echo # wsrep_slave_threads
--echo #

--echo # save the initial value
SET @wsrep_slave_threads_global_saved = @@global.wsrep_slave_threads;

--echo # default
SELECT @@global.wsrep_slave_threads;

--echo
--echo # scope
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT @@session.wsrep_slave_threads;
SET @@global.wsrep_slave_threads=1;
SELECT @@global.wsrep_slave_threads;

--echo
--echo # valid values
SET @@global.wsrep_slave_threads=10;
SELECT @@global.wsrep_slave_threads;
SET @@global.wsrep_slave_threads=0;
SELECT @@global.wsrep_slave_threads;
SET @@global.wsrep_slave_threads=default;
SELECT @global.wsrep_slave_threads;

--echo
--echo # invalid values
--error ER_WRONG_TYPE_FOR_VAR
SET @@global.wsrep_slave_threads=NULL;
--error ER_WRONG_TYPE_FOR_VAR
SET @@global.wsrep_slave_threads='junk';
# expect warning : Truncated incorrect wsrep_slave_threads value: '-1'
SET @@global.wsrep_slave_threads=-1;
SELECT @global.wsrep_slave_threads;

--echo
--echo # restore the initial value
SET @@global.wsrep_slave_threads = @wsrep_slave_threads_global_saved;

--echo # End of test