diff --git a/src/include/taler_testing_lib.h b/src/include/taler_testing_lib.h
index 245ce494f..bfb86be1b 100644
--- a/src/include/taler_testing_lib.h
+++ b/src/include/taler_testing_lib.h
@@ -2373,6 +2373,31 @@ TALER_TESTING_get_trait_uint64 (const struct TALER_TESTING_Command *cmd,
                                 const uint64_t **n);
 
 
+/**
+ * Offer number trait, 64-bit signed version.
+ *
+ * @param index the number's index number.
+ * @param n number to offer.
+ */
+struct TALER_TESTING_Trait
+TALER_TESTING_make_trait_int64 (unsigned int index,
+                                const int64_t *n);
+
+
+/**
+ * Obtain a "number" value from @a cmd, 64-bit signed version.
+ *
+ * @param cmd command to extract the number from.
+ * @param index the number's index number.
+ * @param[out] n set to the number coming from @a cmd.
+ * @return #GNUNET_OK on success.
+ */
+int
+TALER_TESTING_get_trait_int64 (const struct TALER_TESTING_Command *cmd,
+                               unsigned int index,
+                               const int64_t **n);
+
+
 /**
  * Offer a number.
  *
@@ -2522,6 +2547,33 @@ TALER_TESTING_make_trait_exchange_keys (unsigned int index,
                                         const json_t *keys);
 
 
+/**
+ * Obtain json from @a cmd.
+ *
+ * @param cmd command to extract the json from.
+ * @param index index number associate with the json on offer.
+ * @param[out] json where to write the json.
+ * @return #GNUNET_OK on success.
+ */
+int
+TALER_TESTING_get_trait_json (const struct TALER_TESTING_Command *cmd,
+                              unsigned int index,
+                              const json_t **json);
+
+
+/**
+ * Offer json in a trait.
+ *
+ * @param index index number associate with the json
+ *        on offer.
+ * @param json json to offer.
+ * @return the trait.
+ */
+struct TALER_TESTING_Trait
+TALER_TESTING_make_trait_json (unsigned int index,
+                               const json_t *json);
+
+
 /**
  * Obtain a private key from a "merchant".  Used e.g. to obtain
  * a merchant's priv to sign a /track request.
diff --git a/src/testing/testing_api_trait_json.c b/src/testing/testing_api_trait_json.c
index cbddad53e..e12f1e9a1 100644
--- a/src/testing/testing_api_trait_json.c
+++ b/src/testing/testing_api_trait_json.c
@@ -30,6 +30,7 @@
 
 #define TALER_TESTING_TRAIT_WIRE_DETAILS "wire-details"
 #define TALER_TESTING_TRAIT_EXCHANGE_KEYS "exchange-keys"
+#define TALER_TESTING_TRAIT_JSON "json"
 
 /**
  * Obtain serialized exchange keys from @a cmd.
@@ -120,4 +121,45 @@ TALER_TESTING_make_trait_wire_details
 }
 
 
+/**
+ * Obtain json from @a cmd.
+ *
+ * @param cmd command to extract the json from.
+ * @param index index number associate with the json on offer.
+ * @param[out] json where to write the json.
+ * @return #GNUNET_OK on success.
+ */
+int
+TALER_TESTING_get_trait_json (const struct TALER_TESTING_Command *cmd,
+                              unsigned int index,
+                              const json_t **json)
+{
+  return cmd->traits (cmd->cls,
+                      (const void **) json,
+                      TALER_TESTING_TRAIT_JSON,
+                      index);
+}
+
+
+/**
+ * Offer json in a trait.
+ *
+ * @param index index number associate with the json
+ *        on offer.
+ * @param json json to offer.
+ * @return the trait.
+ */
+struct TALER_TESTING_Trait
+TALER_TESTING_make_trait_json (unsigned int index,
+                               const json_t *json)
+{
+  struct TALER_TESTING_Trait ret = {
+    .index = index,
+    .trait_name = TALER_TESTING_TRAIT_JSON,
+    .ptr = (const json_t *) json
+  };
+  return ret;
+}
+
+
 /* end of testing_api_trait_json.c */
diff --git a/src/testing/testing_api_trait_number.c b/src/testing/testing_api_trait_number.c
index bf8cd3c2b..ed25593ef 100644
--- a/src/testing/testing_api_trait_number.c
+++ b/src/testing/testing_api_trait_number.c
@@ -30,6 +30,7 @@
 #define TALER_TESTING_TRAIT_UINT "uint"
 #define TALER_TESTING_TRAIT_UINT32 "uint-32"
 #define TALER_TESTING_TRAIT_UINT64 "uint-64"
+#define TALER_TESTING_TRAIT_INT64 "int-64"
 #define TALER_TESTING_TRAIT_BANK_ROW "bank-transaction-row"
 
 
@@ -151,6 +152,45 @@ TALER_TESTING_make_trait_uint64 (unsigned int index,
 }
 
 
+/**
+ * Obtain a "number" value from @a cmd, 64-bit signed version.
+ *
+ * @param cmd command to extract the number from.
+ * @param index the number's index number.
+ * @param[out] n set to the number coming from @a cmd.
+ * @return #GNUNET_OK on success.
+ */
+int
+TALER_TESTING_get_trait_int64 (const struct TALER_TESTING_Command *cmd,
+                               unsigned int index,
+                               const int64_t **n)
+{
+  return cmd->traits (cmd->cls,
+                      (const void **) n,
+                      TALER_TESTING_TRAIT_INT64,
+                      index);
+}
+
+
+/**
+ * Offer number trait, 64-bit signed version.
+ *
+ * @param index the number's index number.
+ * @param n number to offer.
+ */
+struct TALER_TESTING_Trait
+TALER_TESTING_make_trait_int64 (unsigned int index,
+                                const int64_t *n)
+{
+  struct TALER_TESTING_Trait ret = {
+    .index = index,
+    .trait_name = TALER_TESTING_TRAIT_INT64,
+    .ptr = (const void *) n
+  };
+  return ret;
+}
+
+
 /**
  * Obtain a bank transaction row value from @a cmd.
  *