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diff --git a/src/testbed/test_testbed_api_2peers_1controller.c b/src/testbed/test_testbed_api_2peers_1controller.c
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+++ b/src/testbed/test_testbed_api_2peers_1controller.c
@@ -0,0 +1,511 @@
+/*
+      This file is part of GNUnet
+      (C) 2008--2012 Christian Grothoff (and other contributing authors)
+
+      GNUnet is free software; you can redistribute it and/or modify
+      it under the terms of the GNU General Public License as published
+      by the Free Software Foundation; either version 3, or (at your
+      option) any later version.
+
+      GNUnet is distributed in the hope that it will be useful, but
+      WITHOUT ANY WARRANTY; without even the implied warranty of
+      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+      General Public License for more details.
+
+      You should have received a copy of the GNU General Public License
+      along with GNUnet; see the file COPYING.  If not, write to the
+      Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+      Boston, MA 02111-1307, USA.
+ */
+
+/**
+ * @file testbed/test_testbed_api_2peers_1controller.c
+ * @brief testcases for the testbed api: 2 peers are configured, started and
+ *          connected together. The 2 peer reside on a single controller.
+ * @author Sree Harsha Totakura
+ */
+
+#include "platform.h"
+#include "gnunet_util_lib.h"
+#include "gnunet_testing_lib-new.h"
+#include "gnunet_testbed_service.h"
+
+
+/**
+ * Generic logging shortcut
+ */
+#define LOG(kind,...)                           \
+  GNUNET_log (kind, __VA_ARGS__)
+
+/**
+ * Relative time seconds shorthand
+ */
+#define TIME_REL_SECS(sec) \
+  GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, sec)
+
+
+/**
+ * Peer context
+ */
+struct PeerContext
+{
+  /**
+   * The peer handle
+   */
+  struct GNUNET_TESTBED_Peer *peer;
+
+  /**
+   * Operations involving this peer
+   */
+  struct GNUNET_TESTBED_Operation *operation;
+
+  /**
+   * set to GNUNET_YES when peer is started
+   */
+  int is_running;
+};
+
+/**
+ * Our localhost
+ */
+static struct GNUNET_TESTBED_Host *host;
+
+/**
+ * The controller process
+ */
+static struct GNUNET_TESTBED_ControllerProc *cp;
+
+/**
+ * The controller handle
+ */
+static struct GNUNET_TESTBED_Controller *controller;
+
+/**
+ * A neighbouring host
+ */
+static struct GNUNET_TESTBED_Host *neighbour;
+
+/**
+ * Handle for neighbour registration
+ */
+static struct GNUNET_TESTBED_HostRegistrationHandle *reg_handle;
+
+/**
+ * peer 1
+ */
+static struct PeerContext peer1;
+
+/**
+ * peer2
+ */
+static struct PeerContext peer2;
+
+/**
+ * Handle to configuration
+ */
+static struct GNUNET_CONFIGURATION_Handle *cfg;
+
+/**
+ * Handle to operations involving both peers
+ */
+static struct GNUNET_TESTBED_Operation *common_operation;
+
+/**
+ * Abort task identifier
+ */
+static GNUNET_SCHEDULER_TaskIdentifier abort_task;
+
+/**
+ * Delayed connect job identifier
+ */
+static GNUNET_SCHEDULER_TaskIdentifier delayed_connect_task;
+
+/**
+ * Different stages in testing
+ */
+enum Stage
+{
+
+  /**
+   * Initial stage
+   */
+  INIT,
+
+  /**
+   * peers are created
+   */
+  PEERS_CREATED,
+
+  /**
+   * peers are started
+   */
+  PEERS_STARTED,
+
+  /**
+   * peers are connected
+   */
+  PEERS_CONNECTED,
+
+  /**
+   * Peers are connected once again (this should not fail as they are already connected)
+   */
+  PEERS_CONNECTED_2,
+
+  /**
+   * peers are stopped
+   */
+  PEERS_STOPPED,
+
+  /**
+   * Final success stage
+   */
+  SUCCESS
+};
+
+/**
+ * The testing result
+ */
+static enum Stage result;
+
+
+/**
+ * Shutdown nicely
+ *
+ * @param cls NULL
+ * @param tc the task context
+ */
+static void
+do_shutdown (void *cls, const const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  if (GNUNET_SCHEDULER_NO_TASK != abort_task)
+    GNUNET_SCHEDULER_cancel (abort_task);
+  GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == delayed_connect_task);
+  if (NULL != reg_handle)
+    GNUNET_TESTBED_cancel_registration (reg_handle);
+  GNUNET_TESTBED_controller_disconnect (controller);
+  GNUNET_CONFIGURATION_destroy (cfg);
+  if (NULL != cp)
+    GNUNET_TESTBED_controller_stop (cp);
+  GNUNET_TESTBED_host_destroy (neighbour);
+  GNUNET_TESTBED_host_destroy (host);
+}
+
+
+/**
+ * abort task to run on test timed out
+ *
+ * @param cls NULL
+ * @param tc the task context
+ */
+static void
+do_abort (void *cls, const const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  LOG (GNUNET_ERROR_TYPE_WARNING, "Test timedout -- Aborting\n");
+  abort_task = GNUNET_SCHEDULER_NO_TASK;
+  GNUNET_assert (GNUNET_SCHEDULER_NO_TASK == delayed_connect_task);
+  do_shutdown (cls, tc);
+}
+
+
+/**
+ * Callback to be called when an operation is completed
+ *
+ * @param cls the callback closure from functions generating an operation
+ * @param op the operation that has been finished
+ * @param emsg error message in case the operation has failed; will be NULL if
+ *          operation has executed successfully.
+ */
+static void 
+op_comp_cb (void *cls, struct GNUNET_TESTBED_Operation *op, const char *emsg);
+
+
+/**
+ * task for delaying a connect
+ *
+ * @param cls NULL
+ * @param tc the task context
+ */
+static void
+do_delayed_connect (void *cls, const const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  delayed_connect_task = GNUNET_SCHEDULER_NO_TASK;
+  GNUNET_assert (NULL == common_operation);
+  common_operation = GNUNET_TESTBED_overlay_connect (NULL, &op_comp_cb, NULL, 
+                                                     peer1.peer, peer2.peer);
+}
+
+
+/**
+ * Callback to be called when an operation is completed
+ *
+ * @param cls the callback closure from functions generating an operation
+ * @param op the operation that has been finished
+ * @param emsg error message in case the operation has failed; will be NULL if
+ *          operation has executed successfully.
+ */
+static void 
+op_comp_cb (void *cls, struct GNUNET_TESTBED_Operation *op, const char *emsg)
+{
+  GNUNET_assert (common_operation == op);
+  switch(result)
+  {
+  case PEERS_STARTED:
+    GNUNET_assert (NULL == peer1.operation);
+    GNUNET_assert (NULL == peer2.operation);
+    GNUNET_assert (NULL != common_operation);
+    GNUNET_TESTBED_operation_done (common_operation);
+    common_operation = NULL;
+    result = PEERS_CONNECTED;
+    LOG (GNUNET_ERROR_TYPE_DEBUG, "Peers connected\n");
+    delayed_connect_task =
+        GNUNET_SCHEDULER_add_delayed (TIME_REL_SECS (3),
+                                      &do_delayed_connect, NULL);
+    break;
+  case PEERS_CONNECTED:
+    GNUNET_assert (NULL == peer1.operation);
+    GNUNET_assert (NULL == peer2.operation);
+    GNUNET_assert (NULL != common_operation);
+    GNUNET_TESTBED_operation_done (common_operation);
+    common_operation = NULL;
+    result = PEERS_CONNECTED_2;
+    LOG (GNUNET_ERROR_TYPE_DEBUG, "Peers connected again\n");
+    peer1.operation = GNUNET_TESTBED_peer_stop (peer1.peer, NULL, NULL);
+    peer2.operation = GNUNET_TESTBED_peer_stop (peer2.peer, NULL, NULL);
+    break;
+  default:
+    GNUNET_assert (0);
+  }
+}
+
+
+/**
+ * Signature of the event handler function called by the
+ * respective event controller.
+ *
+ * @param cls closure
+ * @param event information about the event
+ */
+static void
+controller_cb (void *cls, const struct GNUNET_TESTBED_EventInformation *event)
+{
+  switch (event->type)
+  {
+  case GNUNET_TESTBED_ET_OPERATION_FINISHED:   /* Will be reached when we destroy peers */
+    GNUNET_assert (PEERS_STOPPED == result);
+    GNUNET_assert (NULL == event->details.operation_finished.op_cls);
+    GNUNET_assert (NULL == event->details.operation_finished.emsg);
+    GNUNET_assert (NULL == event->details.operation_finished.generic);
+    if (event->details.operation_finished.operation == peer1.operation)
+    {
+      GNUNET_TESTBED_operation_done (peer1.operation);
+      peer1.operation = NULL;
+      peer1.peer = NULL;
+    }
+    else if (event->details.operation_finished.operation == peer2.operation)
+    {
+      GNUNET_TESTBED_operation_done (peer2.operation);
+      peer2.operation = NULL;
+      peer2.peer = NULL;
+    }
+    else
+      GNUNET_assert (0);
+    if ((NULL == peer1.peer) && (NULL == peer2.peer))
+    {
+      result = SUCCESS;
+      GNUNET_SCHEDULER_add_now (&do_shutdown, NULL);
+    }
+    break;
+  case GNUNET_TESTBED_ET_PEER_START:
+    GNUNET_assert (INIT == result);
+    GNUNET_assert (event->details.peer_start.host == host);
+    if (event->details.peer_start.peer == peer1.peer)
+    {
+      peer1.is_running = GNUNET_YES;
+      GNUNET_TESTBED_operation_done (peer1.operation);
+      peer1.operation = NULL;
+    }
+    else if (event->details.peer_start.peer == peer2.peer)
+    {
+      peer2.is_running = GNUNET_YES;
+      GNUNET_TESTBED_operation_done (peer2.operation);
+      peer2.operation = NULL;
+    }
+    else
+      GNUNET_assert (0);
+    if ((GNUNET_YES == peer1.is_running) && (GNUNET_YES == peer2.is_running))
+    {
+      result = PEERS_STARTED;
+      common_operation =
+          GNUNET_TESTBED_overlay_connect (NULL, &op_comp_cb, NULL, peer1.peer,
+                                          peer2.peer);
+    }
+    break;
+  case GNUNET_TESTBED_ET_PEER_STOP:
+    GNUNET_assert (PEERS_CONNECTED_2 == result);
+    if (event->details.peer_stop.peer == peer1.peer)
+    {
+      peer1.is_running = GNUNET_NO;
+      GNUNET_TESTBED_operation_done (peer1.operation);
+      peer1.operation = GNUNET_TESTBED_peer_destroy (peer1.peer);
+    }
+    else if (event->details.peer_stop.peer == peer2.peer)
+    {
+      peer2.is_running = GNUNET_NO;
+      GNUNET_TESTBED_operation_done (peer2.operation);
+      peer2.operation = GNUNET_TESTBED_peer_destroy (peer2.peer);
+    }
+    else
+      GNUNET_assert (0);
+    if ((GNUNET_NO == peer1.is_running) && (GNUNET_NO == peer2.is_running))
+      result = PEERS_STOPPED;
+    break;
+  case GNUNET_TESTBED_ET_CONNECT:
+    switch (result)
+    {
+    case PEERS_STARTED:
+    case PEERS_CONNECTED:
+      GNUNET_assert (NULL == peer1.operation);
+      GNUNET_assert (NULL == peer2.operation);
+      GNUNET_assert (NULL != common_operation);
+      GNUNET_assert ((event->details.peer_connect.peer1 == peer1.peer) &&
+                     (event->details.peer_connect.peer2 == peer2.peer));
+      break;
+    default:
+      GNUNET_assert (0);
+    }
+    break;
+  default:
+    GNUNET_assert (0);
+  };
+}
+
+
+/**
+ * Functions of this signature are called when a peer has been successfully
+ * created
+ *
+ * @param cls the closure from GNUNET_TESTBED_peer_create()
+ * @param peer the handle for the created peer; NULL on any error during
+ *          creation
+ * @param emsg NULL if peer is not NULL; else MAY contain the error description
+ */
+static void
+peer_create_cb (void *cls, struct GNUNET_TESTBED_Peer *peer, const char *emsg)
+{
+  struct PeerContext *pc = cls;
+
+  GNUNET_assert (NULL != pc->operation);
+  GNUNET_assert (NULL != peer);
+  GNUNET_assert (NULL == pc->peer);
+  pc->peer = peer;
+  GNUNET_TESTBED_operation_done (pc->operation);
+  pc->operation = GNUNET_TESTBED_peer_start (pc->peer, NULL, NULL);
+}
+
+
+/**
+ * Callback which will be called to after a host registration succeeded or failed
+ *
+ * @param cls the host which has been registered
+ * @param emsg the error message; NULL if host registration is successful
+ */
+static void
+registration_comp (void *cls, const char *emsg)
+{
+  GNUNET_assert (cls == neighbour);
+  reg_handle = NULL;
+  peer1.operation =
+      GNUNET_TESTBED_peer_create (controller, host, cfg, &peer_create_cb,
+                                  &peer1);
+  peer2.operation =
+      GNUNET_TESTBED_peer_create (controller, host, cfg, &peer_create_cb,
+                                  &peer2);
+  GNUNET_assert (NULL != peer1.operation);
+  GNUNET_assert (NULL != peer2.operation);
+}
+
+
+/**
+ * Callback to signal successfull startup of the controller process
+ *
+ * @param cls the closure from GNUNET_TESTBED_controller_start()
+ * @param cfg the configuration with which the controller has been started;
+ *          NULL if status is not GNUNET_OK
+ * @param status GNUNET_OK if the startup is successfull; GNUNET_SYSERR if not,
+ *          GNUNET_TESTBED_controller_stop() shouldn't be called in this case
+ */
+static void
+status_cb (void *cls, const struct GNUNET_CONFIGURATION_Handle *cfg, int status)
+{
+  uint64_t event_mask;
+
+  GNUNET_assert (GNUNET_OK == status);
+  event_mask = 0;
+  event_mask |= (1L << GNUNET_TESTBED_ET_PEER_START);
+  event_mask |= (1L << GNUNET_TESTBED_ET_PEER_STOP);
+  event_mask |= (1L << GNUNET_TESTBED_ET_CONNECT);
+  event_mask |= (1L << GNUNET_TESTBED_ET_OPERATION_FINISHED);
+  controller =
+      GNUNET_TESTBED_controller_connect (cfg, host, event_mask, &controller_cb,
+                                         NULL);
+  GNUNET_assert (NULL != controller);
+  neighbour = GNUNET_TESTBED_host_create ("localhost", NULL, 0);
+  GNUNET_assert (NULL != neighbour);
+  reg_handle =
+      GNUNET_TESTBED_register_host (controller, neighbour, &registration_comp,
+                                    neighbour);
+  GNUNET_assert (NULL != reg_handle);
+}
+
+
+
+/**
+ * Main run function.
+ *
+ * @param cls NULL
+ * @param args arguments passed to GNUNET_PROGRAM_run
+ * @param cfgfile the path to configuration file
+ * @param cfg the configuration file handle
+ */
+static void
+run (void *cls, char *const *args, const char *cfgfile,
+     const struct GNUNET_CONFIGURATION_Handle *config)
+{
+  host = GNUNET_TESTBED_host_create (NULL, NULL, 0);
+  GNUNET_assert (NULL != host);
+  cfg = GNUNET_CONFIGURATION_dup (config);
+  cp = GNUNET_TESTBED_controller_start ("127.0.0.1", host, cfg, status_cb,
+                                        NULL);
+  abort_task =
+      GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+                                    (GNUNET_TIME_UNIT_MINUTES, 3), &do_abort,
+                                    NULL);
+}
+
+
+/**
+ * Main function
+ */
+int
+main (int argc, char **argv)
+{
+  int ret;
+
+  char *const argv2[] = { "test_testbed_api_2peers_1controller",
+    "-c", "test_testbed_api.conf",
+    NULL
+  };
+  struct GNUNET_GETOPT_CommandLineOption options[] = {
+    GNUNET_GETOPT_OPTION_END
+  };
+  result = INIT;
+  ret =
+      GNUNET_PROGRAM_run ((sizeof (argv2) / sizeof (char *)) - 1, argv2,
+                          "test_testbed_api_2peers_1controller", "nohelp",
+                          options, &run, NULL);
+  if ((GNUNET_OK != ret) || (SUCCESS != result))
+    return 1;
+  return 0;
+}
+
+/* end of test_testbed_api_2peers_1controller.c */