MaxScale/maxscale-system-test/mxs1507_inconsistent_trx.cpp
Markus Mäkelä 2f8bb71a58
MXS-1507: Test resultset checksum functionality
The test verifies that different results returned by the replayed
transaction cause the replaying to be aborted.
2018-04-30 12:31:51 +03:00

64 lines
1.6 KiB
C++

/**
* MXS-1507: Test inconsistent result detection
*
* https://jira.mariadb.org/browse/MXS-1507
*/
#include "testconnections.h"
#include <functional>
#include <iostream>
#include <vector>
using namespace std;
int main(int argc, char** argv)
{
TestConnections test(argc, argv);
auto query = [&](string q)
{
return execute_query_silent(test.maxscales->conn_rwsplit[0], q.c_str()) == 0;
};
auto ok = [&](string q)
{
test.assert(query(q), "Query '%s' should work: %s", q.c_str(), mysql_error(test.maxscales->conn_rwsplit[0]));
};
auto err = [&](string q)
{
test.assert(!query(q), "Query should not work: %s", q.c_str());
};
// Create a table and insert one value
test.maxscales->connect();
ok("CREATE OR REPLACE TABLE test.t1 (id INT)");
ok("INSERT INTO test.t1 VALUES (1)");
// Make sure it's replicated to all slaves before starting the transaction
test.repl->connect();
test.repl->sync_slaves();
// Read the inserted value inside a read-only transaction
ok("START TRANSACTION READ ONLY");
ok("SELECT * FROM test.t1");
// Modify the related data mid-transaction
execute_query(test.repl->nodes[0], "INSERT INTO test.t1 VALUES (2)");
test.repl->sync_slaves();
test.repl->disconnect();
// Block the node where the transaction is active
test.repl->block_node(1);
sleep(5);
// The checksums for the results should conflict causing the replay to fail
err("COMMIT");
test.maxscales->disconnect();
test.maxscales->connect();
ok("DROP TABLE test.t1");
test.maxscales->disconnect();
return test.global_result;
}