add tests

maxscale-system-test/rwsplit_conn_num.cpp

@@ -0,0 +1,85 @@
+/**
+ * @file rwsplit_conn_num.cpp Checks connections are distributed equaly among backends
+ * - create 100 connections to RWSplit
+ * - check all slaves have equal number of connections
+ * - check sum of number of connections to all slaves is equal to 100
+ */
+
+
+#include <iostream>
+#include "testconnections.h"
+
+using namespace std;
+
+int main(int argc, char *argv[])
+{
+    TestConnections * Test = new TestConnections(argc, argv);
+    Test->set_timeout(20);
+
+    Test->repl->connect();
+
+    const int TestConnNum = 100;
+    MYSQL *conn[TestConnNum];
+    int i;
+    int conn_num;
+    int res = 0;
+
+    MYSQL * backend_conn;
+    for (i = 0; i < Test->repl->N; i++)
+    {
+        backend_conn = open_conn(Test->repl->port[i], Test->repl->IP[i], Test->repl->user_name, Test->repl->password,
+                                 Test->repl->ssl);
+        execute_query(backend_conn, "SET GLOBAL max_connections = 200;");
+        mysql_close(backend_conn);
+    }
+
+    Test->tprintf("Creating %d connections to RWSplit router\n", TestConnNum);
+    for (i = 0; i < TestConnNum; i++)
+    {
+        conn[i] = Test->open_rwsplit_connection();
+    }
+    Test->tprintf("Waiting 5 seconds\n");
+    sleep(5);
+
+    int ConnFloor = floor((float)TestConnNum / (Test->repl->N - 1));
+    int ConnCell = ceil((float)TestConnNum / (Test->repl->N - 1));
+    int TotalConn = 0;
+
+    Test->tprintf("Checking connections to Master: should be %d\n", TestConnNum);
+    conn_num = get_conn_num(Test->repl->nodes[0], Test->maxscale_ip(), Test->maxscale_hostname, (char *) "test");
+    if (conn_num != TestConnNum)
+    {
+        Test->add_result(1, "number of connections to Master is %d\n", conn_num);
+    }
+
+    Test->tprintf("Number of connections to each slave should be between %d and %d\n", ConnFloor, ConnCell);
+    Test->tprintf("Checking connections to each node\n");
+    for (int i = 1; i < Test->repl->N; i++)
+    {
+        conn_num = get_conn_num(Test->repl->nodes[i], Test->maxscale_ip(), Test->maxscale_hostname, (char *) "test");
+        TotalConn += conn_num;
+        Test->tprintf("Connections to node %d (%s):\t%d\n", i, Test->repl->IP[i], conn_num);
+        if ((conn_num > ConnCell) || (conn_num < ConnFloor))
+        {
+            Test->add_result(1, "wrong number of connections to node %d\n", i);
+        }
+    }
+    Test->tprintf("Total number of connections %d\n", TotalConn);
+    if (TotalConn != TestConnNum)
+    {
+        Test->add_result(1, "total number of connections is wrong\n");
+
+    }
+    for (i = 0; i < TestConnNum; i++)
+    {
+        mysql_close(conn[i]);
+    }
+
+    int rval = Test->global_result;
+    delete Test;
+    return rval;
+}
+
+
+
+