Merge branch '2.3' into 2.4
This commit is contained in:
Esa Korhonen
227
system-test/mxs1549_optimistic_trx.cpp
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227
system-test/mxs1549_optimistic_trx.cpp
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/**
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* MXS-1549: Optimistic transaction tests
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*
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* https://jira.mariadb.org/browse/MXS-1549
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*/
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#include <maxtest/testconnections.hh>
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#include <functional>
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#include <iostream>
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#include <vector>
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using namespace std;
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int main(int argc, char** argv)
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{
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TestConnections test(argc, argv);
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Connection conn {test.maxscales->rwsplit()};
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auto query = [&](bool should_work, string q) {
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test.expect(conn.query(q) == should_work,
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"Query '%s' should %s: %s",
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q.c_str(),
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should_work ? "work" : "fail",
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conn.error());
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};
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auto compare = [&](bool equal, string q, string res) {
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Row row = conn.row(q);
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test.expect(!row.empty() && (row[0] == res) == equal,
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"Values are %s: `%s` `%s`",
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equal ? "not equal" : "equal",
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row.empty() ? "<empty>" : row[0].c_str(),
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res.c_str());
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};
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auto block = [&](int node) {
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return bind([&](int i) {
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test.repl->block_node(i);
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test.maxscales->wait_for_monitor();
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},
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node);
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};
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auto unblock = [&](int node) {
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return bind([&](int i) {
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test.repl->unblock_node(i);
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test.maxscales->wait_for_monitor();
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},
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node);
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};
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auto ok = [&](string q) {
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return bind(query, true, q);
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};
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auto err = [&](string q) {
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return bind(query, false, q);
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};
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auto equal = [&](string q, string res) {
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return bind(compare, true, q, res);
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};
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auto not_equal = [&](string q, string res) {
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return bind(compare, false, q, res);
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};
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conn.connect();
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conn.query("CREATE OR REPLACE TABLE test.t1(id INT)");
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conn.disconnect();
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test.repl->connect();
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std::string master_id = test.repl->get_server_id_str(0);
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std::string slave_id = test.repl->get_server_id_str(1);
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test.repl->sync_slaves();
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struct
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{
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const char* description;
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vector<function<void ()>> steps;
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} test_cases[]
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{
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{
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"Minimal transaction works",
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{
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ok("START TRANSACTION"),
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ok("COMMIT")
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}
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},
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{
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"Read-only is routed to the slave",
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{
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ok("START TRANSACTION"),
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not_equal("SELECT @@server_id", master_id),
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ok("COMMIT")
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},
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},
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{
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"Read-write is routed to the master",
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{
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ok("START TRANSACTION"),
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ok("INSERT INTO test.t1 VALUES (1)"),
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equal("SELECT @@server_id", master_id),
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ok("COMMIT")
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}
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},
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{
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"Read-only after read-write is routed to slave",
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{
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ok("START TRANSACTION"),
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ok("INSERT INTO test.t1 VALUES (1)"),
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equal("SELECT @@server_id", master_id),
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ok("COMMIT"),
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ok("START TRANSACTION"),
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equal("SELECT @@server_id", slave_id),
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ok("COMMIT")
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}
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},
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{
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"Read-write after read-only is routed to master",
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{
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ok("START TRANSACTION"),
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equal("SELECT @@server_id", slave_id),
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ok("COMMIT"),
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ok("START TRANSACTION"),
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ok("INSERT INTO test.t1 VALUES (1)"),
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equal("SELECT @@server_id", master_id),
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ok("COMMIT")
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}
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},
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{
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"Blocking slave moves transaction to the master",
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{
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ok("START TRANSACTION"),
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ok("SELECT COUNT(*) FROM test.t1"),
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block(1),
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equal("SELECT @@server_id", master_id),
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ok("COMMIT"),
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unblock(1)
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}
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},
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{
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"Blocking master has no effect",
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{
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block(0),
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ok("START TRANSACTION"),
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equal("SELECT @@server_id", slave_id),
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ok("COMMIT"),
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unblock(0)
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}
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},
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{
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"Blocking master mid-transaction has no effect",
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{
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ok("START TRANSACTION"),
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block(0),
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equal("SELECT @@server_id", slave_id),
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ok("COMMIT"),
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unblock(0)
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}
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},
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{
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"Blocking master before commit has no effect",
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{
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ok("START TRANSACTION"),
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equal("SELECT @@server_id", slave_id),
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block(0),
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ok("COMMIT"),
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unblock(0)
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}
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},
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{
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"Conflicting results terminate connection",
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{
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ok("START TRANSACTION"),
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equal("SELECT @@server_id", slave_id),
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err("INSERT INTO test.t1 VALUES (1)"),
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err("COMMIT")
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}
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},
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{
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"Read-write works without slaves",
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{
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block(1),
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ok("START TRANSACTION"),
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ok("INSERT INTO test.t1 VALUES (1)"),
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ok("COMMIT"),
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unblock(1)
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}
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},
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{
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"Read-only works without slaves",
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{
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block(1),
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ok("START TRANSACTION"),
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equal("SELECT @@server_id", master_id),
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ok("COMMIT"),
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unblock(1)
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}
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},
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};
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for (auto& a : test_cases)
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{
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test.tprintf("%s", a.description);
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conn.connect();
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// Helps debugging to have a distict query in the log
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conn.query(string("SELECT '") + a.description + "'");
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for (auto s : a.steps)
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{
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s();
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}
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conn.disconnect();
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test.repl->sync_slaves();
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}
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// Cleanup
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conn.connect();
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conn.query("DROP TABLE test.t1");
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conn.disconnect();
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test.repl->disconnect();
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return test.global_result;
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}
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