1 files changed, 80 insertions, 0 deletions
diff --git a/src/lib/testing_api_traits.c b/src/lib/testing_api_traits.c
new file mode 100644
index 000000000..aa6c79c83
--- /dev/null
+++ b/src/lib/testing_api_traits.c
@@ -0,0 +1,80 @@
+/*
+  This file is part of TALER
+  Copyright (C) 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 exchange-lib/testing_api_traits.c
+ * @brief loop for trait resolution
+ * @author Christian Grothoff
+ * @author Marcello Stanisci
+ */
+#include "platform.h"
+#include "taler_json_lib.h"
+#include <gnunet/gnunet_curl_lib.h>
+#include "exchange_api_handle.h"
+#include "taler_signatures.h"
+#include "taler_testing_lib.h"
+
+
+/**
+ * End a trait array.  Usually, commands offer several traits,
+ * and put them in arrays.
+ */
+struct TALER_TESTING_Trait
+TALER_TESTING_trait_end ()
+{
+  struct TALER_TESTING_Trait end = {
+    .index = 0,
+    .trait_name = NULL,
+    .ptr = NULL
+  };
+
+  return end;
+}
+
+/**
+ * Pick the chosen trait from the traits array.
+ *
+ * @param traits the traits array.
+ * @param ret where to store the result.
+ * @param trait type of the trait to extract.
+ * @param index index number of the object to extract.
+ * @return #GNUNET_OK if no error occurred, #GNUNET_SYSERR otherwise.
+ */
+int
+TALER_TESTING_get_trait (const struct TALER_TESTING_Trait *traits,
+                         const void **ret,
+                         const char *trait,
+                         unsigned int index)
+{
+  for (unsigned int i=0; NULL != traits[i].trait_name; i++)
+  {
+    if ( (0 == strcmp (trait, traits[i].trait_name)) &&
+         (index == traits[i].index) )
+    {
+      *ret = (void *) traits[i].ptr;
+      return GNUNET_OK;
+    }
+  }
+  GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+              "Trait %s/%u not found.\n",
+              trait, index);
+
+  return GNUNET_SYSERR;
+}
+
+/* end of testing_api_traits.c */