Add tests from develop

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

maxscale-system-test/show_monitor_crash.cpp

@@ -0,0 +1,31 @@
+/**
+ * @file show_monitor_crash.cpp show_monitor_crash regression case for crash if maxadmin 'show monitors' command is issued, but no monitor is not running
+ *
+ * - maxscale.cnf contains wrong monitor config (user name is wrong)
+ * - issue 'show monitors' maxadmin command
+ * - check for crash
+ */
+
+
+
+#include <iostream>
+#include <unistd.h>
+#include "testconnections.h"
+
+using namespace std;
+
+int main(int argc, char *argv[])
+{
+    TestConnections * Test = new TestConnections(argc, argv);
+    Test->set_timeout(100);
+    Test->execute_maxadmin_command((char *) "show monitors");
+    sleep(5);
+    Test->check_log_err((char *) "Failed to start monitor", true);
+    Test->check_log_err((char *) "fatal signal 11", false);
+
+    Test->check_maxscale_processes(1);
+
+    int rval = Test->global_result;
+    delete Test;
+    return rval;
+}