From 00ef89003d1995ab4a6de23bdba23c710bdc7946 Mon Sep 17 00:00:00 2001
From: Christian Grothoff <grothoff@gnunet.org>
Date: Thu, 9 Nov 2023 16:07:28 +0100
Subject: -add support for refund in coin history tests

---
 src/testing/testing_api_cmd_refund.c | 83 ++++++++++++++++++++++++++++++++----
 1 file changed, 74 insertions(+), 9 deletions(-)

(limited to 'src/testing/testing_api_cmd_refund.c')

diff --git a/src/testing/testing_api_cmd_refund.c b/src/testing/testing_api_cmd_refund.c
index 5a218bcf4..578bee46b 100644
--- a/src/testing/testing_api_cmd_refund.c
+++ b/src/testing/testing_api_cmd_refund.c
@@ -53,6 +53,16 @@ struct RefundState
    */
   uint64_t refund_transaction_id;
 
+  /**
+   * Entry in the coin's history generated by this operation.
+   */
+  struct TALER_EXCHANGE_CoinHistoryEntry che;
+
+  /**
+   * Public key of the refunded coin.
+   */
+  struct TALER_CoinSpendPublicKeyP coin;
+
   /**
    * Handle to the refund operation.
    */
@@ -105,12 +115,12 @@ refund_run (void *cls,
 {
   struct RefundState *rs = cls;
   const struct TALER_CoinSpendPrivateKeyP *coin_priv;
-  struct TALER_CoinSpendPublicKeyP coin;
   const json_t *contract_terms;
   struct TALER_PrivateContractHashP h_contract_terms;
   struct TALER_Amount refund_amount;
   const struct TALER_MerchantPrivateKeyP *merchant_priv;
   const struct TALER_TESTING_Command *coin_cmd;
+  const struct TALER_EXCHANGE_DenomPublicKey *denom_pub;
 
   rs->is = is;
   if (GNUNET_OK !=
@@ -145,10 +155,15 @@ refund_run (void *cls,
                                            &h_contract_terms));
 
   /* Hunting for a coin .. */
-  if (GNUNET_OK !=
-      TALER_TESTING_get_trait_coin_priv (coin_cmd,
-                                         0,
-                                         &coin_priv))
+  if ( (GNUNET_OK !=
+        TALER_TESTING_get_trait_coin_priv (coin_cmd,
+                                           0,
+                                           &coin_priv)) ||
+       (GNUNET_OK !=
+        TALER_TESTING_get_trait_denom_pub (coin_cmd,
+                                           0,
+                                           &denom_pub)) )
+
   {
     GNUNET_break (0);
     TALER_TESTING_interpreter_fail (is);
@@ -156,7 +171,7 @@ refund_run (void *cls,
   }
 
   GNUNET_CRYPTO_eddsa_key_get_public (&coin_priv->eddsa_priv,
-                                      &coin.eddsa_pub);
+                                      &rs->coin.eddsa_pub);
   if (GNUNET_OK !=
       TALER_TESTING_get_trait_merchant_priv (coin_cmd,
                                              &merchant_priv))
@@ -165,13 +180,30 @@ refund_run (void *cls,
     TALER_TESTING_interpreter_fail (is);
     return;
   }
+  rs->che.type = TALER_EXCHANGE_CTT_REFUND;
+  rs->che.details.refund.h_contract_terms = h_contract_terms;
+  GNUNET_CRYPTO_eddsa_key_get_public (
+    &merchant_priv->eddsa_priv,
+    &rs->che.details.refund.merchant_pub.eddsa_pub);
+  rs->che.details.refund.refund_fee = denom_pub->fees.refund;
+  rs->che.details.refund.sig_amount = refund_amount;
+  TALER_amount_subtract (&rs->che.amount,
+                         &refund_amount,
+                         &rs->che.details.refund.refund_fee);
+  rs->che.details.refund.rtransaction_id = rs->refund_transaction_id;
+  TALER_merchant_refund_sign (&rs->coin,
+                              &h_contract_terms,
+                              rs->refund_transaction_id,
+                              &refund_amount,
+                              merchant_priv,
+                              &rs->che.details.refund.sig);
   rs->rh = TALER_EXCHANGE_refund (
     TALER_TESTING_interpreter_get_context (is),
     TALER_TESTING_get_exchange_url (is),
     TALER_TESTING_get_keys (is),
     &refund_amount,
     &h_contract_terms,
-    &coin,
+    &rs->coin,
     rs->refund_transaction_id,
     merchant_priv,
     &refund_cb,
@@ -180,6 +212,37 @@ refund_run (void *cls,
 }
 
 
+/**
+ * Offer internal data from a "refund" CMD, to other commands.
+ *
+ * @param cls closure.
+ * @param[out] ret result.
+ * @param trait name of the trait.
+ * @param index index number of the object to offer.
+ * @return #GNUNET_OK on success.
+ */
+static enum GNUNET_GenericReturnValue
+refund_traits (void *cls,
+               const void **ret,
+               const char *trait,
+               unsigned int index)
+{
+  struct RefundState *rs = cls;
+  struct TALER_TESTING_Trait traits[] = {
+    TALER_TESTING_make_trait_coin_history (0,
+                                           &rs->che),
+    TALER_TESTING_make_trait_coin_pub (0,
+                                       &rs->coin),
+    TALER_TESTING_trait_end ()
+  };
+
+  return TALER_TESTING_get_trait (traits,
+                                  ret,
+                                  trait,
+                                  index);
+}
+
+
 /**
  * Free the state from a "refund" CMD, and possibly cancel
  * a pending operation thereof.
@@ -221,7 +284,8 @@ TALER_TESTING_cmd_refund (const char *label,
       .cls = rs,
       .label = label,
       .run = &refund_run,
-      .cleanup = &refund_cleanup
+      .cleanup = &refund_cleanup,
+      .traits = &refund_traits
     };
 
     return cmd;
@@ -249,7 +313,8 @@ TALER_TESTING_cmd_refund_with_id (
       .cls = rs,
       .label = label,
       .run = &refund_run,
-      .cleanup = &refund_cleanup
+      .cleanup = &refund_cleanup,
+      .traits = &refund_traits
     };
 
     return cmd;
-- 
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