MDEV-20466: fix of test suite

mysql-test/r/processlist.result

@@ -17,4 +17,10 @@ select command, time < 5 from information_schema.processlist where id != connect
 command	time < 5
 Sleep	1
 set debug_sync='reset';
+#
+# MDEV-20466: SHOW PROCESSLIST truncates query text on \0 bytes
+#
+SET DEBUG_SYNC= 'before_join_optimize SIGNAL in_sync';
+SET DEBUG_SYNC= 'now WAIT_FOR in_sync';
+SET DEBUG_SYNC = 'RESET';
 End of 5.5 tests

mysql-test/t/processlist.test

@@ -51,4 +51,33 @@ select command, time < 5 from information_schema.processlist where id != connect
 disconnect con1;
 set debug_sync='reset';
 
+--echo #
+--echo # MDEV-20466: SHOW PROCESSLIST truncates query text on \0 bytes
+--echo #
+
+connect (con1,localhost,root,,);
+
+connection con1;
+
+let $q= `select CONCAT("SELECT user FROM mysql.user WHERE user ='some", CHAR(0), "' or sleep (30)")`;
+
+SET DEBUG_SYNC= 'before_join_optimize SIGNAL in_sync';
+--disable_query_log
+--send_eval $q;
+--enable_query_log
+connection default;
+
+SET DEBUG_SYNC= 'now WAIT_FOR in_sync';
+
+exec $MYSQL test  -e "SHOW PROCESSLIST" > $MYSQLTEST_VARDIR/tmp/MDEV-20466.text;
+
+let SEARCH_FILE=$MYSQLTEST_VARDIR/tmp/MDEV-20466.text;
+let SEARCH_PATTERN=sleep;
+source include/search_pattern_in_file.inc;
+remove_file $MYSQLTEST_VARDIR/tmp//MDEV-20466.text;
+
+disconnect con1;
+
+SET DEBUG_SYNC = 'RESET';
+
 --echo End of 5.5 tests

mysql-test/t/processlist_MDEV-20466.test

---echo #  This test has a result that includes \0 byte.
---echo #  Such a byte makes diff to treat the whole file as binary,
---echo #  and to refuse to diff it.
---echo #  That's why this test is put in a separate file,
---echo #  so that diff would still work on results of other tests.
-
-source include/have_debug.inc;
-source include/have_debug_sync.inc;
-
---echo #
---echo # MDEV-20466: SHOW PROCESSLIST truncates query text on \0 bytes
---echo #
-
-connect (con1,localhost,root,,);
-
-#select * from information_schema.processlist;
-connection con1;
-
-let $q= `select CONCAT("SELECT user FROM mysql.user WHERE user ='some", CHAR(0), "' or sleep (3)")`;
-
-SET DEBUG_SYNC= 'before_join_optimize SIGNAL in_sync';
---send_eval $q;
-
-connection default;
-
-SET DEBUG_SYNC= 'now WAIT_FOR in_sync';
-
---replace_column 1 ID 3 HOST_NAME 6 TIME 9 TIME_MS
-SHOW PROCESSLIST;
-
-disconnect con1;
-
-SET DEBUG_SYNC = 'RESET';
-
---echo End of 5.5 tests