Fixed a warning in mtr script.

Updated wsrep.variables test.

mysql-test/mysql-test-run.pl

@@ -2406,7 +2406,7 @@ sub environment_setup {
       $ENV{'WSREP_PROVIDER'}=  $file_wsrep_provider;
     }
 
-    if ($ENV{'WSREP_PROVIDER'} ne "") {
+    if ((defined $ENV{'WSREP_PROVIDER'}) && ($ENV{'WSREP_PROVIDER'} ne "")) {
       mtr_verbose("WSREP_PROVIDER set to $ENV{'WSREP_PROVIDER'}");
     } else {
       mtr_verbose("WSREP_PROVIDER isn't available");

mysql-test/suite/wsrep/r/variables.result

@@ -19,13 +19,13 @@ call mtr.add_suppression("safe_mutex: Found wrong usage of mutex 'LOCK_wsrep_sla
 call mtr.add_suppression("WSREP: Failed to get provider options");
 SELECT @@global.wsrep_provider;
 @@global.wsrep_provider
-none
+libgalera_smm.so
 SELECT @@global.wsrep_slave_threads;
 @@global.wsrep_slave_threads
 1
 SELECT @@global.wsrep_cluster_address;
 @@global.wsrep_cluster_address
-
+NULL
 SHOW STATUS LIKE 'threads_connected';
 Variable_name	Value
 Threads_connected	1
@@ -33,10 +33,9 @@ SHOW STATUS LIKE 'wsrep_thread_count';
 Variable_name	Value
 wsrep_thread_count	0
 
-SET GLOBAL wsrep_provider= '/usr/lib/galera/libgalera_smm.so';
 SELECT @@global.wsrep_provider;
 @@global.wsrep_provider
-/usr/lib/galera/libgalera_smm.so
+libgalera_smm.so
 SELECT @@global.wsrep_cluster_address;
 @@global.wsrep_cluster_address
 NULL
@@ -53,7 +52,7 @@ SET GLOBAL wsrep_cluster_address= 'gcomm://';
 # Wait for applier threads to get created.
 SELECT @@global.wsrep_provider;
 @@global.wsrep_provider
-/usr/lib/galera/libgalera_smm.so
+libgalera_smm.so
 SELECT @@global.wsrep_cluster_address;
 @@global.wsrep_cluster_address
 gcomm://
@@ -74,6 +73,7 @@ SHOW STATUS LIKE 'wsrep_thread_count';
 Variable_name	Value
 wsrep_thread_count	11
 SET GLOBAL wsrep_slave_threads= @wsrep_slave_threads_saved;
+SET GLOBAL wsrep_provider= none;
 SET GLOBAL wsrep_cluster_address= '';
-SET GLOBAL wsrep_provider= 'none';
+SET GLOBAL wsrep_provider_options= '';
 # End of test.

mysql-test/suite/wsrep/t/variables.test

@@ -5,6 +5,10 @@
 --echo #
 --echo # Testing wsrep_replicate_myisam variable.
 
+--disable_query_log
+eval SET GLOBAL wsrep_provider= '$WSREP_PROVIDER';
+--enable_query_log
+
 --error ER_INCORRECT_GLOBAL_LOCAL_VAR
 SELECT @@session.wsrep_replicate_myisam;
 SELECT @@global.wsrep_replicate_myisam;
@@ -22,6 +26,7 @@ SET GLOBAL wsrep_replicate_myisam= OFF;
 --echo #
 call mtr.add_suppression("safe_mutex: Found wrong usage of mutex 'LOCK_wsrep_slave_threads' and 'LOCK_global_system_variables'");
 call mtr.add_suppression("WSREP: Failed to get provider options");
+--replace_regex /.*libgalera_smm.*/libgalera_smm.so/
 SELECT @@global.wsrep_provider;
 SELECT @@global.wsrep_slave_threads;
 SELECT @@global.wsrep_cluster_address;
@@ -29,7 +34,11 @@ SHOW STATUS LIKE 'threads_connected';
 SHOW STATUS LIKE 'wsrep_thread_count';
 --echo
 
+--disable_query_log
 eval SET GLOBAL wsrep_provider= '$WSREP_PROVIDER';
+--enable_query_log
+
+--replace_regex /.*libgalera_smm.*/libgalera_smm.so/
 SELECT @@global.wsrep_provider;
 SELECT @@global.wsrep_cluster_address;
 SHOW STATUS LIKE 'threads_connected';
@@ -41,6 +50,8 @@ SHOW STATUS LIKE 'wsrep_thread_count';
 SET GLOBAL wsrep_cluster_address= 'gcomm://';
 --echo # Wait for applier threads to get created.
 sleep 3; 
+
+--replace_regex /.*libgalera_smm.*/libgalera_smm.so/
 SELECT @@global.wsrep_provider;
 SELECT @@global.wsrep_cluster_address;
 SHOW STATUS LIKE 'threads_connected';
@@ -56,8 +67,9 @@ SHOW STATUS LIKE 'wsrep_thread_count';
 
 # reset (for mtr internal checks)
 SET GLOBAL wsrep_slave_threads= @wsrep_slave_threads_saved;
+SET GLOBAL wsrep_provider= none;
 SET GLOBAL wsrep_cluster_address= '';
-SET GLOBAL wsrep_provider= 'none';
+SET GLOBAL wsrep_provider_options= '';
 
 --echo # End of test.