1 files changed, 157 insertions, 0 deletions
diff --git a/src/testing/testing_api_twister_helpers.c b/src/testing/testing_api_twister_helpers.c
new file mode 100644
index 000000000..6fab02c34
--- /dev/null
+++ b/src/testing/testing_api_twister_helpers.c
@@ -0,0 +1,157 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014-2018 Taler Systems SA
+
+  TALER 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.
+
+  TALER 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 TALER; see the file COPYING.  If not, see
+  <http://www.gnu.org/licenses/>
+*/
+
+/**
+ * @file twister/testing_api_helpers.c
+ * @brief helper functions for test library.
+ * @author Christian Grothoff
+ * @author Marcello Stanisci
+ */
+
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_twister_testing_lib.h"
+
+/**
+ * Prepare twister for execution; mainly checks whether the
+ * HTTP port is available and construct the base URL based on it.
+ *
+ * @param config_filename configuration file name.
+ * @return twister base URL, NULL upon errors.
+ */
+char *
+TALER_TWISTER_prepare_twister (const char *config_filename)
+{
+  struct GNUNET_CONFIGURATION_Handle *cfg;
+  unsigned long long port;
+  char *base_url;
+
+  cfg = GNUNET_CONFIGURATION_create ();
+
+  if (GNUNET_OK != GNUNET_CONFIGURATION_load
+        (cfg, config_filename))
+    TWISTER_FAIL ();
+
+  if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_number
+        (cfg, "twister",
+        "HTTP_PORT", &port))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               "twister",
+                               "HTTP_PORT");
+    GNUNET_CONFIGURATION_destroy (cfg);
+    TWISTER_FAIL ();
+  }
+
+  GNUNET_CONFIGURATION_destroy (cfg);
+
+  if (GNUNET_OK != GNUNET_NETWORK_test_port_free
+        (IPPROTO_TCP, (uint16_t) port))
+  {
+    fprintf (stderr,
+             "Required port %llu not available, skipping.\n",
+             port);
+    TWISTER_FAIL ();
+  }
+
+  GNUNET_assert (0 < GNUNET_asprintf
+                   (&base_url,
+                   "http://localhost:%llu/",
+                   port));
+
+  return base_url;
+}
+
+
+/**
+ * Run the twister service.
+ *
+ * @param config_filename configuration file name.
+ * @return twister process handle, NULL upon errors.
+ */
+struct GNUNET_OS_Process *
+TALER_TWISTER_run_twister (const char *config_filename)
+{
+  struct GNUNET_OS_Process *proc;
+  struct GNUNET_OS_Process *client_proc;
+  unsigned long code;
+  enum GNUNET_OS_ProcessStatusType type;
+
+  proc = GNUNET_OS_start_process (GNUNET_NO,
+                                  GNUNET_OS_INHERIT_STD_ALL,
+                                  NULL, NULL, NULL,
+                                  "taler-twister-service",
+                                  "taler-twister-service",
+                                  "-c", config_filename,
+                                  NULL);
+  if (NULL == proc)
+    TWISTER_FAIL ();
+
+  client_proc = GNUNET_OS_start_process (GNUNET_NO,
+                                         GNUNET_OS_INHERIT_STD_ALL,
+                                         NULL, NULL, NULL,
+                                         "taler-twister",
+                                         "taler-twister",
+                                         "-c", config_filename,
+                                         "-a", NULL);
+  if (NULL == client_proc)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Could not start the taler-twister client\n");
+    GNUNET_OS_process_kill (proc, SIGTERM);
+    GNUNET_OS_process_wait (proc);
+    GNUNET_OS_process_destroy (proc);
+    TWISTER_FAIL ();
+  }
+
+
+  if (GNUNET_SYSERR == GNUNET_OS_process_wait_status
+        (client_proc, &type, &code))
+  {
+    GNUNET_OS_process_destroy (client_proc);
+    GNUNET_OS_process_kill (proc, SIGTERM);
+    GNUNET_OS_process_wait (proc);
+    GNUNET_OS_process_destroy (proc);
+    TWISTER_FAIL ();
+  }
+  if ( (type == GNUNET_OS_PROCESS_EXITED) &&
+       (0 != code) )
+  {
+    fprintf (stderr, "Failed to check twister works.\n");
+    GNUNET_OS_process_destroy (client_proc);
+    GNUNET_OS_process_kill (proc, SIGTERM);
+    GNUNET_OS_process_wait (proc);
+    GNUNET_OS_process_destroy (proc);
+    TWISTER_FAIL ();
+  }
+  if ( (type != GNUNET_OS_PROCESS_EXITED) ||
+       (0 != code) )
+  {
+    fprintf (stderr, "Unexpected error running"
+             " `taler-twister'!\n");
+    GNUNET_OS_process_destroy (client_proc);
+    GNUNET_OS_process_kill (proc, SIGTERM);
+    GNUNET_OS_process_wait (proc);
+    GNUNET_OS_process_destroy (proc);
+    TWISTER_FAIL ();
+  }
+  GNUNET_OS_process_destroy (client_proc);
+
+  return proc;
+}