avoid failing hard if 'gnunetcheck' db does not exist

 (or plugins cannot be loaded for other reasons)

1 files changed, 89 insertions, 0 deletions

diff --git a/src/namestore/test_common.c b/src/namestore/test_common.c
new file mode 100644
index 000000000..0dc6f9277
--- /dev/null
+++ b/src/namestore/test_common.c
@@ -0,0 +1,89 @@
+/*
+     This file is part of GNUnet.
+     Copyright (C) 2019 GNUnet e.V.
+
+     GNUnet is free software: you can redistribute it and/or modify it
+     under the terms of the GNU Affero General Public License as published
+     by the Free Software Foundation, either version 3 of the License,
+     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
+     Affero General Public License for more details.
+    
+     You should have received a copy of the GNU Affero General Public License
+     along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+     SPDX-License-Identifier: AGPL3.0-or-later
+*/
+/**
+ * @file namestore/test_common.c
+ * @brief common functions for testcase setup
+ */
+
+/**
+ * test if we can load the plugin @a name.
+ */
+static int
+TNC_test_plugin (const char *cfg_name)
+{
+  char *database;
+  char *db_lib_name;
+  struct GNUNET_NAMESTORE_PluginFunctions *db;
+  struct GNUNET_CONFIGURATION_Handle *cfg;
+  
+  cfg = GNUNET_CONFIGURATION_create ();
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_load (cfg,
+                                 cfg_name))
+  {
+    GNUNET_break (0);
+    GNUNET_CONFIGURATION_destroy (cfg);
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_string (cfg,
+                                             "namestore",
+                                             "database",
+                                             &database))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "No database backend configured\n");
+    GNUNET_CONFIGURATION_destroy (cfg);
+    return GNUNET_SYSERR;
+  }
+  GNUNET_asprintf (&db_lib_name,
+                   "libgnunet_plugin_namestore_%s",
+                   database);
+  db = GNUNET_PLUGIN_load (db_lib_name,
+                           (void *) cfg);
+  if (NULL != db)
+    GNUNET_break (NULL ==
+                  GNUNET_PLUGIN_unload (db_lib_name,
+                                        db));
+  GNUNET_free (db_lib_name);
+  GNUNET_CONFIGURATION_destroy (cfg);
+  if (NULL == db)
+    return GNUNET_NO;
+  return GNUNET_YES;
+}
+
+
+/**
+ * General setup logic for starting the tests.  Obtains the @a
+ * plugin_name and initializes the @a cfg_name.
+ */
+#define SETUP_CFG(plugin_name,cfg_name) do { \
+  plugin_name = GNUNET_TESTING_get_testname_from_underscore (argv[0]); \
+  GNUNET_asprintf (&cfg_name, \
+                   "test_namestore_api_%s.conf", \
+                   plugin_name); \
+  if (! TNC_test_plugin (cfg_name)) \
+  { \
+    GNUNET_free (cfg_name); \
+    return 77; \
+  } \
+  GNUNET_DISK_purge_cfg_dir (cfg_name, \
+                             "GNUNET_TEST_HOME"); \
+  } while (0)