MXS-2313: Add rank test case

The test checks that the behavior of readwritesplit is as it should be. The test still needs to be extended to cover readconnroute.
2019-03-11 09:51:27 +02:00
parent 6befc7f7d4
commit 6ca89b4d27
5 changed files with 184 additions and 0 deletions
--- a/maxscale-system-test/mxs2313_rank.cpp
+++ b/maxscale-system-test/mxs2313_rank.cpp
@ -0,0 +1,104 @@
+/**
+ * MXS-2313: `rank` functional tests
+ * https://jira.mariadb.org/browse/MXS-2313
+ */
+
+#include "testconnections.h"
+#include <iostream>
+
+std::function<void(int)> block_wait;
+std::function<void(int)> unblock_wait;
+
+void test_rwsplit(TestConnections& test, std::vector<std::string> ids)
+{
+    std::cout << "Slaves with descending rank and a low ranking master" << std::endl;
+
+    test.check_maxctrl("alter server server1 rank 9999");
+    test.check_maxctrl("alter server server2 rank 2");
+    test.check_maxctrl("alter server server3 rank 3");
+    test.check_maxctrl("alter server server4 rank 4");
+
+    Connection c = test.maxscales->rwsplit();
+    c.connect();
+    test.expect(c.field("SELECT @@server_id") == ids[1], "First slave should reply");
+
+    block_wait(1);
+    test.expect(c.field("SELECT @@server_id") == ids[2], "Second slave should reply");
+
+    block_wait(2);
+    test.expect(c.field("SELECT @@server_id") == ids[3], "Third slave should reply");
+
+    block_wait(3);
+    test.expect(c.field("SELECT @@server_id") == ids[0], "Master should reply");
+
+    block_wait(0);
+    test.expect(!c.query("SELECT @@server_id"), "Query should fail");
+
+    unblock_wait(0);
+    c.disconnect();
+    c.connect();
+    test.expect(c.field("SELECT @@server_id") == ids[0], "Master should reply");
+
+    unblock_wait(3);
+    test.expect(c.field("SELECT @@server_id") == ids[3], "Third slave should reply");
+
+    unblock_wait(2);
+    test.expect(c.field("SELECT @@server_id") == ids[2], "Second slave should reply");
+
+    unblock_wait(1);
+    test.expect(c.field("SELECT @@server_id") == ids[1], "First slave should reply");
+
+    std::cout << "Grouping servers into a three-node cluster with one low-ranking server" << std::endl;
+
+    test.check_maxctrl("alter server server1 rank 1");
+    test.check_maxctrl("alter server server2 rank 1");
+    test.check_maxctrl("alter server server3 rank 1");
+    test.check_maxctrl("alter server server4 rank 9999");
+
+    block_wait(0);
+    auto id = c.field("SELECT @@server_id");
+    test.expect(!id.empty() && id != ids[3], "Third slave should not reply");
+
+    block_wait(1);
+    id = c.field("SELECT @@server_id");
+    test.expect(!id.empty() && id != ids[3], "Third slave should not reply");
+
+    block_wait(2);
+    test.expect(c.field("SELECT @@server_id") == ids[3], "Third slave should reply");
+
+    for (int i = 0; i < 3; i++)
+    {
+        unblock_wait(i);
+        auto id = c.field("SELECT @@server_id");
+        test.expect(!id.empty() && id != ids[3], "Third slave should not reply");
+    }
+
+    test.check_maxctrl("alter server server1 rank 1");
+    test.check_maxctrl("alter server server2 rank 2");
+    test.check_maxctrl("alter server server3 rank 3");
+    test.check_maxctrl("alter server server4 rank 4");
+}
+
+int main(int argc, char* argv[])
+{
+    TestConnections test(argc, argv);
+
+    block_wait = [&](int node) {
+            std::cout << "Block server" << (node + 1) << std::endl;
+            test.repl->block_node(node);
+            test.maxscales->wait_for_monitor(2);
+        };
+    unblock_wait = [&](int node) {
+            std::cout << "Unblock server" << (node + 1) << std::endl;
+            test.repl->unblock_node(node);
+            test.maxscales->wait_for_monitor(2);
+        };
+
+    test.repl->connect();
+    auto ids = test.repl->get_all_server_ids_str();
+    test.repl->disconnect();
+
+    test_rwsplit(test, ids);
+
+    return test.global_result;
+}