Add tests from develop

Added tests from develop. The test results need to be modified for 2.0.

maxscale-system-test/check_backend.cpp

@@ -0,0 +1,50 @@
+/**
+ * @file check_backend.cpp simply checks if backend is alive
+ */
+
+
+#include <iostream>
+#include "testconnections.h"
+
+int main(int argc, char *argv[])
+{
+    TestConnections * Test = new TestConnections(argc, argv);
+
+    /*Test->restart_maxscale();
+    sleep(5);*/
+    Test->set_timeout(10);
+
+    Test->tprintf("Connecting to Maxscale routers with Master/Slave backend\n");
+    Test->connect_maxscale();
+    Test->tprintf("Testing connections\n");
+    Test->add_result(Test->test_maxscale_connections(true, true, true), "Can't connect to backend\n");
+    Test->tprintf("Connecting to Maxscale router with Galera backend\n");
+    MYSQL * g_conn = open_conn(4016 , Test->maxscale_IP, Test->maxscale_user, Test->maxscale_password, Test->ssl);
+    if (g_conn != NULL )
+    {
+        Test->tprintf("Testing connection\n");
+        Test->add_result(Test->try_query(g_conn, (char *) "SELECT 1"),
+                         (char *) "Error executing query against RWSplit Galera\n");
+    }
+    Test->tprintf("Closing connections\n");
+    Test->close_maxscale_connections();
+    Test->check_maxscale_alive();
+
+    char * ver = Test->ssh_maxscale_output(false, "maxscale --version-full");
+    Test->tprintf("Maxscale_full_version_start:\n%s\nMaxscale_full_version_end\n", ver);
+
+    if ((Test->global_result == 0) && (Test->use_snapshots))
+    {
+        Test->tprintf("Taking snapshot\n");
+        Test->take_snapshot((char *) "clean");
+    }
+    else
+    {
+        Test->tprintf("Snapshots are not in use\n");
+    }
+
+
+    int rval = Test->global_result;
+    delete Test;
+    return rval;
+}