#
# wsrep_certify_nonpk
#
# save the initial value
SET @wsrep_certify_nonpk_global_saved = @@global.wsrep_certify_nonpk;
# default
SELECT @@global.wsrep_certify_nonpk;
@@global.wsrep_certify_nonpk
1

# scope
SELECT @@session.wsrep_certify_nonpk;
ERROR HY000: Variable 'wsrep_certify_nonPK' is a GLOBAL variable
SET @@global.wsrep_certify_nonpk=OFF;
SELECT @@global.wsrep_certify_nonpk;
@@global.wsrep_certify_nonpk
0
SET @@global.wsrep_certify_nonpk=ON;
SELECT @@global.wsrep_certify_nonpk;
@@global.wsrep_certify_nonpk
1

# valid values
SET @@global.wsrep_certify_nonpk='OFF';
SELECT @@global.wsrep_certify_nonpk;
@@global.wsrep_certify_nonpk
0
SET @@global.wsrep_certify_nonpk=ON;
SELECT @@global.wsrep_certify_nonpk;
@@global.wsrep_certify_nonpk
1
SET @@global.wsrep_certify_nonpk=default;
SELECT @@global.wsrep_certify_nonpk;
@@global.wsrep_certify_nonpk
1

# invalid values
SET @@global.wsrep_certify_nonpk=NULL;
ERROR 42000: Variable 'wsrep_certify_nonPK' can't be set to the value of 'NULL'
SET @@global.wsrep_certify_nonpk='junk';
ERROR 42000: Variable 'wsrep_certify_nonPK' can't be set to the value of 'junk'

# restore the initial value
SET @@global.wsrep_certify_nonpk = @wsrep_certify_nonpk_global_saved;
# End of test