/usr/lib/mysql-testsuite/t/consistent_snapshot.test is in percona-server-test-5.6 5.6.22-rel71.0-0ubuntu4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 | --source include/have_innodb.inc
# Save the initial number of concurrent sessions
--source include/count_sessions.inc
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
--echo # Establish connection con1 (user=root)
connect (con1,localhost,root,,);
--echo # Establish connection con2 (user=root)
connect (con2,localhost,root,,);
--echo ### Test 1:
--echo ### - While a consistent snapshot transaction is executed,
--echo ### no external inserts should be visible to the transaction.
--echo # Switch to connection con1
connection con1;
CREATE TABLE t1 (a INT) ENGINE=innodb;
START TRANSACTION WITH CONSISTENT SNAPSHOT;
--echo # Switch to connection con2
connection con2;
INSERT INTO t1 VALUES(1);
--echo # Switch to connection con1
connection con1;
SELECT * FROM t1; # if consistent snapshot was set as expected, we
# should see nothing.
COMMIT;
--echo ### Test 2:
--echo ### - For any non-consistent snapshot transaction, external
--echo ### committed inserts should be visible to the transaction.
DELETE FROM t1;
START TRANSACTION; # Now we omit WITH CONSISTENT SNAPSHOT
--echo # Switch to connection con2
connection con2;
INSERT INTO t1 VALUES(1);
--echo # Switch to connection con1
connection con1;
SELECT * FROM t1; # if consistent snapshot was not set, as expected, we
# should see 1.
COMMIT;
--echo ### Test 3:
--echo ### - Bug#44664: valgrind warning for COMMIT_AND_CHAIN and ROLLBACK_AND_CHAIN
--echo ### Chaining a transaction does not retain consistency level.
START TRANSACTION WITH CONSISTENT SNAPSHOT;
DELETE FROM t1;
COMMIT WORK AND CHAIN;
--echo # Switch to connection con2
connection con2;
INSERT INTO t1 VALUES(1);
--echo # Switch to connection con1
connection con1;
SELECT * FROM t1; # if consistent snapshot was not set, as expected, we
# should see 1.
COMMIT;
--echo # Switch to connection default + close connections con1 and con2
connection default;
disconnect con1;
disconnect con2;
DROP TABLE t1;
# End of 4.1 tests
# Wait till all disconnects are completed
--source include/wait_until_count_sessions.inc
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