Test suites for engine testing, moved from test-extra so will be available

for general use.


mysql-test/Makefile.am:
  Adding directories of additional test suites
mysql-test/mysql-stress-test.pl:
  Adding check for additional errors checking during test run

mysql-test/suite/engines/rr_trx/check_consistency.sql

@@ -0,0 +1,31 @@
+USE test;
+-- This file contains queries that can be used to check table consistency after running the stress_tx_rr test suite.
+-- Contains a mix of queries used throughout the actual test suite.
+-- When server is running, run this script e.g. like this:
+--  ./bin/mysql -v -u root -h 127.0.0.1 < mysql-test/suite/engines/rr_trx/check_consistency.sql
+
+CHECK TABLE t1;
+ANALYZE TABLE t1;
+
+-- Sum of all integers that are part of the test data should be 0
+SELECT SUM(`int1` + `int1_key` + `int1_unique`
+         + `int2` + `int2_key` + `int2_unique`)
+         AS TotalSum
+         FROM t1;
+
+-- No uncommitted data should be visible to a REPEATABLE-READ transaction
+SELECT * FROM t1 WHERE `is_uncommitted` = 1;
+
+-- No rows marked as consistent should have row-sum not equal to 0
+SELECT * FROM t1 WHERE @sum:=`int1` + `int1_key` + `int1_unique` + `int2` + `int2_key` + `int2_unique` <> 0 AND `is_consistent` = 1;
+
+-- Check the table count. SHOULD NOT BE 0.
+SELECT COUNT(*) FROM t1;
+
+-- The count of rows with pk divisible by 5 should be constant.
+-- (less useful when there is no concurrency, though)
+SELECT COUNT(*) FROM t1 WHERE `pk` MOD 5 = 0 AND `pk` BETWEEN 1 AND 1000;
+
+-- Check statistics (any number is OK, we are only looking for an impractical amount of errors
+SELECT * FROM statistics;
+