made a uuid trait

src/include/taler_testing_lib.h

@@ -2937,6 +2937,35 @@ TALER_TESTING_get_trait_cmd (const struct TALER_TESTING_Command *cmd,
                              struct TALER_TESTING_Command **_cmd);
 
 
+/**
+ * Obtain a uuid from @a cmd.
+ *
+ * @param cmd command to extract the uuid from.
+ * @param index which amount to pick if @a cmd has multiple
+ *        on offer
+ * @param[out] uuid where to write the uuid.
+ * @return #GNUNET_OK on success.
+ */
+int
+TALER_TESTING_get_trait_uuid (const struct TALER_TESTING_Command *cmd,
+                              unsigned int index,
+                              struct GNUNET_Uuid **uuid);
+
+
+/**
+ * Offer a uuid in a trait.
+ *
+ * @param index which uuid to offer, in case there are
+ *        multiple available.
+ * @param uuid the uuid to offer.
+ *
+ * @return the trait.
+ */
+struct TALER_TESTING_Trait
+TALER_TESTING_make_trait_uuid (unsigned int index,
+                               const struct GNUNET_Uuid *uuid);
+
+
 /**
  * Obtain a absolute time from @a cmd.
  *

src/testing/Makefile.am

@@ -95,6 +95,7 @@ libtalertesting_la_SOURCES = \
   testing_api_trait_reserve_priv.c \
   testing_api_trait_string.c \
   testing_api_trait_time.c \
+  testing_api_trait_uuid.c \
   testing_api_trait_wtid.c
 libtalertesting_la_LIBADD = \
   $(top_builddir)/src/lib/libtalerexchange.la \

src/testing/testing_api_trait_uuid.c

@@ -0,0 +1,73 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2020 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 lib/testing_api_trait_uuid.c
+ * @brief offer any trait that is passed over as a uuid.
+ * @author Jonathan Buchanan
+ */
+#include "platform.h"
+#include <taler/taler_signatures.h>
+#include <taler/taler_exchange_service.h>
+#include <taler/taler_testing_lib.h>
+
+
+#define TALER_TESTING_TRAIT_UUID "uuid"
+
+
+/**
+ * Obtain a uuid from @a cmd.
+ *
+ * @param cmd command to extract the uuid from.
+ * @param index which amount to pick if @a cmd has multiple
+ *        on offer
+ * @param[out] uuid where to write the uuid.
+ * @return #GNUNET_OK on success.
+ */
+int
+TALER_TESTING_get_trait_uuid (const struct TALER_TESTING_Command *cmd,
+                              unsigned int index,
+                              struct GNUNET_Uuid **uuid)
+{
+  return cmd->traits (cmd->cls,
+                      (const void **) uuid,
+                      TALER_TESTING_TRAIT_UUID,
+                      index);
+}
+
+
+/**
+ * Offer a uuid in a trait.
+ *
+ * @param index which uuid to offer, in case there are
+ *        multiple available.
+ * @param uuid the uuid to offer.
+ *
+ * @return the trait.
+ */
+struct TALER_TESTING_Trait
+TALER_TESTING_make_trait_uuid (unsigned int index,
+                               const struct GNUNET_Uuid *uuid)
+{
+  struct TALER_TESTING_Trait ret = {
+    .index = index,
+    .trait_name = TALER_TESTING_TRAIT_UUID,
+    .ptr = (const void *) uuid
+  };
+  return ret;
+}