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bead24b7f3
Remove one of the major sources of race condiitons in mariadb-test. Normally, mariadb_close() sends COM_QUIT to the server and immediately disconnects. In mariadb-test it means the test can switch to another connection and sends queries to the server before the server even started parsing the COM_QUIT packet and these queries can see the connection as fully active, as it didn't reach dispatch_command yet. This is a major source of instability in tests and many - but not all, still less than a half - tests employ workarounds. The correct one is a pair count_sessions.inc/wait_until_count_sessions.inc. Also very popular was wait_until_disconnected.inc, which was completely useless, because it verifies that the connection is closed, and after disconnect it always is, it didn't verify whether the server processed COM_QUIT. Sadly the placebo was as widely used as the real thing. Let's fix this by making mariadb-test `disconnect` command _to wait_ for the server to confirm. This makes almost all workarounds redundant. In some cases count_sessions.inc/wait_until_count_sessions.inc is still needed, though, as only `disconnect` command is changed: * after external tools, like `exec $MYSQL` * after failed `connect` command * replication, after `STOP SLAVE` * Federated/CONNECT/SPIDER/etc after `DROP TABLE` and also in some XA tests, because an XA transaction is dissociated from the THD very late, after the server has closed the client connection. Collateral cleanups: fix comments, remove some redundant statements: * DROP IF EXISTS if nothing is known to exist * DROP table/view before DROP DATABASE * REVOKE privileges before DROP USER etc
55 lines
1.3 KiB
Text
55 lines
1.3 KiB
Text
# Grant tests not performed with embedded server
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-- source include/not_embedded.inc
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--source include/have_debug.inc
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##TEST for invisible coloumn level 3
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set @old_debug= @@debug_dbug;
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create user user_1;
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show grants for user_1;
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--echo # create user
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create database d;
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use d;
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--echo
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--echo #Completely Invisible
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set debug_dbug= "+d,test_completely_invisible";
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create table t1(a int);
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insert into t1 values(1);
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select a,invisible from t1;
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set debug_dbug=@old_debug;
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grant insert(a) on t1 to user_1;
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grant update(a) on t1 to user_1;
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grant select(a) on t1 to user_1;
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grant delete on t1 to user_1;
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connect (con1, localhost, user_1,,d);
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connection con1;
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select user();
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select * from t1;
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insert into t1 values(2);
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select * from t1;
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insert into t1(a) values(3);
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select * from t1;
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--error ER_BAD_FIELD_ERROR
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select invisible,a from t1;
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delete from t1 where a =1;
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update t1 set a=1 where a=3;
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select * from t1;
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connection default;
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REVOKE ALL PRIVILEGES, GRANT OPTION FROM user_1;
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connection con1;
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--error ER_TABLEACCESS_DENIED_ERROR
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select * from t1;
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--error ER_TABLEACCESS_DENIED_ERROR
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select invisible from t1;
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disconnect con1;
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--echo
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--echo #Final Cleanup
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connection default;
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set debug_dbug= "+d,test_completely_invisible";
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select a,invisible from t1;
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drop user user_1;
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drop database d;
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set @old_debug= @@debug_dbug;
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