Add tests from develop

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

maxscale-system-test/mxs47.cpp

@@ -0,0 +1,30 @@
+/**
+ * @file mxs47.cpp Regression test for bug MXS-47 ("Session freeze when small tail packet")
+ * - execute SELECT REPEAT('a',i), where 'i' is changing from 1 to 3000 with stride of 7 using readwritesplit
+ */
+
+
+#include <iostream>
+#include "testconnections.h"
+
+int main(int argc, char *argv[])
+{
+    TestConnections test(argc, argv);
+    int iterations = 5000;
+
+    test.tprintf("Executing `SELECT REPEAT('a', X );` for X = 0..%d with a stride of 7", iterations);
+    test.connect_maxscale();
+
+    for (int i = 1; i < iterations; i += 7)
+    {
+        char str[1024];
+        sprintf(str, "SELECT REPEAT('a',%d)", i);
+
+        test.set_timeout(15);
+        test.try_query(test.conn_rwsplit, str);
+    }
+
+    test.close_maxscale_connections();
+
+    return test.global_result;
+}