#
# wsrep_provider
#
# save the initial value
SET @wsrep_provider_global_saved = @@global.wsrep_provider;
# default
SELECT @@global.wsrep_provider;
@@global.wsrep_provider
none

# scope
SELECT @@session.wsrep_provider;
ERROR HY000: Variable 'wsrep_provider' is a GLOBAL variable
SELECT @@global.wsrep_provider;
@@global.wsrep_provider
none

# valid values
SET @@global.wsrep_provider=default;
SELECT @@global.wsrep_provider;
@@global.wsrep_provider
none

# invalid values
SET @@global.wsrep_provider='/invalid/libgalera_smm.so';
ERROR 42000: Variable 'wsrep_provider' can't be set to the value of '/invalid/libgalera_smm.so'
SET @@global.wsrep_provider=NULL;
ERROR 42000: Variable 'wsrep_provider' can't be set to the value of 'NULL'
SELECT @@global.wsrep_provider;
@@global.wsrep_provider
none
SET @@global.wsrep_provider=1;
ERROR 42000: Incorrect argument type to variable 'wsrep_provider'
SELECT @@global.wsrep_provider;
@@global.wsrep_provider
none

# restore the initial value
SET @@global.wsrep_provider = @wsrep_provider_global_saved;
# End of test