Fix test cases in galera suite

Signed-off-by: Sachin Setiya <sachin.setiya@mariadb.com>

mysql-test/include/assert_grep.inc

+# ==== Purpose ====
+#
+# Grep a file for a pattern, produce a single string out of the
+# matching lines, and assert that the string matches a given regular
+# expression.
+#
+# ==== Usage ====
+#
+# --let $assert_text= TEXT
+# --let $assert_file= FILE
+# --let $assert_select= REGEX
+# [--let $assert_match= REGEX | --let $assert_count= NUMBER]
+# [--let $assert_only_after= REGEX]
+# --source include/assert_grep.inc
+#
+# Parameters:
+#
+#   $assert_text
+#     Text that describes what is being checked. This text is written to
+#     the query log so it should not contain non-deterministic elements.
+#
+#   $assert_file
+#     File to search.
+#
+#   $assert_select
+#     All lines matching this text will be checked.
+#
+#   $assert_match
+#     The script will find all lines that match $assert_select,
+#     concatenate them to a long string, and assert that it matches
+#     $assert_match.
+#
+#   $assert_count
+#     Instead of asserting that the selected lines match
+#     $assert_match, assert that there were exactly $assert_count
+#     matching lines.
+#
+#   $assert_only_after
+#     Reset all the lines matched and the counter when finding this pattern.
+#     It is useful for searching things in the mysqld.err log file just
+#     after the last server restart for example (discarding the log content
+#     of previous server executions).
+
+
+if (!$assert_text)
+{
+  --die !!!ERROR IN TEST: you must set $assert_text
+}
+if (!$assert_file)
+{
+  --die !!!ERROR IN TEST: you must set $assert_file
+}
+if (!$assert_select)
+{
+  --die !!!ERROR IN TEST: you must set $assert_select
+}
+if ($assert_match == '')
+{
+  if ($assert_count == '')
+  {
+    --die !!!ERROR IN TEST: you must set either $assert_match or $assert_count
+  }
+}
+if ($assert_match != '')
+{
+  if ($assert_count != '')
+  {
+    --echo assert_text='$assert_text' assert_count='$assert_count'
+    --die !!!ERROR IN TEST: you must set only one of $assert_match or $assert_count
+  }
+}
+
+
+--let $include_filename= assert_grep.inc [$assert_text]
+--source include/begin_include_file.inc
+
+
+--let _AG_ASSERT_TEXT= $assert_text
+--let _AG_ASSERT_FILE= $assert_file
+--let _AG_ASSERT_SELECT= $assert_select
+--let _AG_ASSERT_MATCH= $assert_match
+--let _AG_ASSERT_COUNT= $assert_count
+--let _AG_OUT= `SELECT CONCAT('$MYSQLTEST_VARDIR/tmp/_ag_', UUID())`
+--let _AG_ASSERT_ONLY_AFTER= $assert_only_after
+
+
+--perl
+  use strict;
+  use warnings;
+  my $file= $ENV{'_AG_ASSERT_FILE'};
+  my $assert_select= $ENV{'_AG_ASSERT_SELECT'};
+  my $assert_match= $ENV{'_AG_ASSERT_MATCH'};
+  my $assert_count= $ENV{'_AG_ASSERT_COUNT'};
+  my $assert_only_after= $ENV{'_AG_ASSERT_ONLY_AFTER'};
+  my $out= $ENV{'_AG_OUT'};
+
+  my $result= '';
+  my $count= 0;
+  open(FILE, "$file") or die("Error $? opening $file: $!\n");
+  while (<FILE>) {
+    my $line = $_;
+    if ($assert_only_after && $line =~ /$assert_only_after/) {
+      $result = "";
+      $count = 0;
+    }
+    if ($line =~ /$assert_select/) {
+      if ($assert_count ne '') {
+        $count++;
+      }
+      else {
+        $result .= $line;
+      }
+    }
+  }
+  close(FILE) or die("Error $? closing $file: $!");
+  open OUT, "> $out" or die("Error $? opening $out: $!");
+  if ($assert_count ne '' && ($count != $assert_count)) {
+    print OUT ($count) or die("Error $? writing $out: $!");
+  }
+  elsif ($assert_count eq '' && $result !~ /$assert_match/) {
+    print OUT ($result) or die("Error $? writing $out: $!");
+  }
+  else {
+    print OUT ("assert_grep.inc ok");
+  }
+  close OUT or die("Error $? closing $out: $!");
+EOF
+
+
+--let $_ag_outcome= `SELECT LOAD_FILE('$_AG_OUT')`
+if ($_ag_outcome != 'assert_grep.inc ok')
+{
+  --source include/show_rpl_debug_info.inc
+  --echo include/assert_grep.inc failed!
+  --echo assert_text: '$assert_text'
+  --echo assert_file: '$assert_file'
+  --echo assert_select: '$assert_select'
+  --echo assert_match: '$assert_match'
+  --echo assert_count: '$assert_count'
+  --echo assert_only_after: '$assert_only_after'
+  if ($assert_match != '')
+  {
+    --echo matching lines: '$_ag_outcome'
+  }
+  if ($assert_count != '')
+  {
+    --echo number of matching lines: $_ag_outcome
+  }
+  --die assert_grep.inc failed.
+}
+
+
+--let $include_filename= include/assert_grep.inc [$assert_text]
+--source include/end_include_file.inc

mysql-test/suite/galera/r/GAL-401.result

 SET GLOBAL wsrep_provider_options = 'pc.ignore_sb=true';
 SET @@global.wsrep_desync = 1;
-SET SESSION wsrep_sync_wait=0;
+SET SESSION wsrep_dirty_reads=1;
 SET GLOBAL wsrep_provider_options = 'gmcast.isolate=1';
 CREATE TABLE t1 (f1 INTEGER PRIMARY KEY, f2 CHAR(1));
 SET GLOBAL wsrep_provider_options = 'gmcast.isolate=0';
@@ -8,7 +8,6 @@ SHOW STATUS LIKE 'wsrep_desync_count';
 Variable_name	Value
 wsrep_desync_count	0
 SET @@global.wsrep_desync = 0;
-SET SESSION wsrep_sync_wait=7;
 SHOW CREATE TABLE t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (

mysql-test/suite/galera/r/lp1376747-4.result

@@ -2,11 +2,15 @@ CREATE TABLE t1 (id INT PRIMARY KEY) ENGINE=InnoDB;
 INSERT INTO t1 VALUES (1);
 SET session wsrep_sync_wait=0;
 SET session wsrep_causal_reads=OFF;
+Warnings:
+Warning	1287	'@@wsrep_causal_reads' is deprecated and will be removed in a future release. Please use '@@wsrep_sync_wait=1' instead
 FLUSH TABLE WITH READ LOCK;
 ALTER TABLE t1 ADD COLUMN f2 INTEGER;
 INSERT INTO t1 VALUES (2,3);
 SET session wsrep_sync_wait=0;
 SET session wsrep_causal_reads=OFF;
+Warnings:
+Warning	1287	'@@wsrep_causal_reads' is deprecated and will be removed in a future release. Please use '@@wsrep_sync_wait=1' instead
 SHOW CREATE TABLE t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (

mysql-test/suite/galera/t/GAL-401.test

@@ -9,7 +9,7 @@ SET GLOBAL wsrep_provider_options = 'pc.ignore_sb=true';
 # Desync and disconnect node 2 from the PC:
 --connection node_2
 SET @@global.wsrep_desync = 1;
-SET SESSION wsrep_sync_wait=0;
+SET SESSION wsrep_dirty_reads=1;
 SET GLOBAL wsrep_provider_options = 'gmcast.isolate=1';
 --let $wait_condition = SELECT VARIABLE_VALUE = 'non-Primary' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_cluster_status';
 --source include/wait_condition.inc
@@ -41,7 +41,6 @@ SET @@global.wsrep_desync = 0;
 --let $wait_condition = SELECT VARIABLE_VALUE = 'Synced' FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'wsrep_local_state_comment';
 --source include/wait_condition.inc
 
-SET SESSION wsrep_sync_wait=7;
 SHOW CREATE TABLE t1;
 DROP TABLE t1;
 CALL mtr.add_suppression("WSREP: Protocol violation. JOIN message sender (.*) is not in state transfer \\(SYNCED\\). Message ignored.");