Fix for Bug#38270 Test "processlist_priv_ps" fails on varying "processlist" output

Details of the fix:
- wrong command and state in processlist -> insert poll routine
- unexpected additional session -> abort if unexpected session found

mysql-test/suite/funcs_1/datadict/processlist_priv.inc

@@ -16,7 +16,7 @@
 #        That means our SHOW PROCESSLIST can come too early.           #
 #     Solution:                                                        #
 #        Close the connections at the end of the test.                 #
-#     Example2:                                                        #
+#     Example2 (2008-08-14 again observed):                            #
 #     1. connection X: SHOW PROCESSLIST/GRANT ... etc.                 #
 #     2. Switch to connection  Y                                       #
 #     3. SHOW PROCESSLIST might present a record like                  #
@@ -53,9 +53,11 @@
 #                    WL#3982 Test information_schema.processlist       #
 #                                                                      #
 # Last update:                                                         #
-# 2008-04-14 pcrews  replace HOST to account for Windows' use of       #
-#                    localhost (host:<port> causing diffs on Windows   #
-#                    test runs                                         #
+# 2008-08-14 mleich  Bug#38270 Test "processlist_priv_ps" fails on     #
+#                              varying "processlist" output            #
+#                    - Replace one sleep by a poll routines            #
+#                    - Remove or disable superfluous sleeps            #
+#                                                                      #
 ########################################################################
 
 # The following variables are used in "datadict_priv.inc" and here.
@@ -87,15 +89,28 @@ USE information_schema;
 --echo 1 Prepare test.
 --echo   connection default (user=root)
 --echo ####################################################################################
+if (`SELECT COUNT(*) <> 1 FROM processlist`)
+{
+   --echo This test expects one connection to the server.
+   --echo Expectation: USER  HOST       DB                  COMMAND  STATE      INFO
+   --echo Expectation: root  localhost  information_schema  Query    executing  SELECT USER,HOST,DB,COMMAND,STATE,INFO FROM processlist ORDER BY ID
+   --echo But we found in the moment:
+   SELECT USER,HOST,DB,COMMAND,STATE,INFO FROM processlist ORDER BY ID;
+   --echo Maybe
+   --echo - the base configuration (no of parallel auxiliary sessions) of the server has changed
+   --echo - a parallel test intended for another server accidently connected to our current one
+   --echo We cannot proceed in this situation. Abort
+   exit;
+}
 
 --echo ####################################################################################
 --echo 1.1 Create two user
 --echo ####################################################################################
 # access to info tables as normal user
---disable_abort_on_error
+--error 0, ER_CANNOT_USER
 DROP USER ddicttestuser1@'localhost';
+--error 0, ER_CANNOT_USER
 DROP USER ddicttestuser2@'localhost';
---enable_abort_on_error
 CREATE USER ddicttestuser1@'localhost';
 CREATE USER ddicttestuser2@'localhost';
 SET PASSWORD FOR ddicttestuser1@'localhost' = PASSWORD('ddictpass');
@@ -112,6 +127,14 @@ connect (con100,localhost,ddicttestuser1,ddictpass,information_schema);
 --echo   SHOW/SELECT shows all processes/threads.
 --echo ####################################################################################
 connection default;
+# Avoid Bug#38270 Test "processlist_priv_ps" fails on varying "processlist" output
+#    This subtest expects that the connection con100 is in state 'Sleep'.
+#    Poll till the connection con100 is in state COMMAND = 'Sleep'.
+let $wait_timeout= 10;
+let $wait_condition=
+SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.PROCESSLIST
+WHERE DB = 'information_schema' AND COMMAND = 'Sleep' AND USER = 'ddicttestuser1';
+--source include/wait_condition.inc
 eval SHOW CREATE TABLE $table;
 --replace_column 1 ID 3 HOST_NAME 6 TIME
 eval SHOW $table;
@@ -120,7 +143,6 @@ eval SELECT * FROM $table $select_where ORDER BY id;
 --replace_column 1 ID 3 HOST_NAME 6 TIME
 eval SELECT $columns FROM $table $select_where ORDER BY id;
 --source suite/funcs_1/datadict/datadict_priv.inc
---real_sleep 0.3
 
 
 --echo ####################################################################################
@@ -128,6 +150,9 @@ eval SELECT $columns FROM $table $select_where ORDER BY id;
 connection con100;
 --echo   SHOW/SELECT shows only the processes (1) of the user.
 --echo ####################################################################################
+# No need for poll routine here.
+# The current state of the default session might depend on load of testing box
+# but "ddicttestuser1" must not see anything of the root session.
 eval SHOW CREATE TABLE $table;
 --replace_column 1 ID 3 HOST_NAME 6 TIME
 eval SHOW $table;
@@ -219,7 +244,7 @@ SELECT * FROM information_schema.processlist;
 
 
 --echo ####################################################################################
---echo 7 Revoke PROCESS privilege from anonymous user + disconnect ddicttestuser1
+--echo 7 Revoke PROCESS privilege from anonymous user
 --echo   connection default (user=root)
 --echo ####################################################################################
 connection default;

mysql-test/suite/funcs_1/r/processlist_priv_no_prot.result

@@ -7,9 +7,7 @@ connection default (user=root)
 1.1 Create two user
 ####################################################################################
 DROP USER ddicttestuser1@'localhost';
-ERROR HY000: Operation DROP USER failed for 'ddicttestuser1'@'localhost'
 DROP USER ddicttestuser2@'localhost';
-ERROR HY000: Operation DROP USER failed for 'ddicttestuser2'@'localhost'
 CREATE USER ddicttestuser1@'localhost';
 CREATE USER ddicttestuser2@'localhost';
 SET PASSWORD FOR ddicttestuser1@'localhost' = PASSWORD('ddictpass');
@@ -240,7 +238,7 @@ ID	ddicttestuser1	HOST_NAME	information_schema	Query	TIME	executing	SELECT * FRO
 ID	ddicttestuser1	HOST_NAME	information_schema	Sleep	TIME		NULL
 ID	ddicttestuser1	HOST_NAME	information_schema	Sleep	TIME		NULL
 ####################################################################################
-7 Revoke PROCESS privilege from anonymous user + disconnect ddicttestuser1
+7 Revoke PROCESS privilege from anonymous user
 connection default (user=root)
 ####################################################################################
 REVOKE PROCESS ON *.* FROM ''@'localhost';

mysql-test/suite/funcs_1/r/processlist_priv_ps.result

@@ -7,9 +7,7 @@ connection default (user=root)
 1.1 Create two user
 ####################################################################################
 DROP USER ddicttestuser1@'localhost';
-ERROR HY000: Operation DROP USER failed for 'ddicttestuser1'@'localhost'
 DROP USER ddicttestuser2@'localhost';
-ERROR HY000: Operation DROP USER failed for 'ddicttestuser2'@'localhost'
 CREATE USER ddicttestuser1@'localhost';
 CREATE USER ddicttestuser2@'localhost';
 SET PASSWORD FOR ddicttestuser1@'localhost' = PASSWORD('ddictpass');
@@ -240,7 +238,7 @@ ID	ddicttestuser1	HOST_NAME	information_schema	Execute	TIME	executing	SELECT * F
 ID	ddicttestuser1	HOST_NAME	information_schema	Sleep	TIME		NULL
 ID	ddicttestuser1	HOST_NAME	information_schema	Sleep	TIME		NULL
 ####################################################################################
-7 Revoke PROCESS privilege from anonymous user + disconnect ddicttestuser1
+7 Revoke PROCESS privilege from anonymous user
 connection default (user=root)
 ####################################################################################
 REVOKE PROCESS ON *.* FROM ''@'localhost';