[taler-exchange] 02/08: -initial file for testing age-withdraw, not functional yet

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commit c8250cae25573a74e5fd536ebc007d639fd85957
Author: Özgür Kesim <oec-taler@kesim.org>
AuthorDate: Thu Jul 13 08:45:39 2023 +0200

    -initial file for testing age-withdraw, not functional yet
---
 src/testing/testing_api_cmd_age_withdraw.c | 155 +++++++++++++++++++++++++++++
 1 file changed, 155 insertions(+)

diff --git a/src/testing/testing_api_cmd_age_withdraw.c 
b/src/testing/testing_api_cmd_age_withdraw.c
new file mode 100644
index 00000000..f7b66f4b
--- /dev/null
+++ b/src/testing/testing_api_cmd_age_withdraw.c
@@ -0,0 +1,155 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2023 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 testing/testing_api_cmd_age_withdraw.c
+ * @brief implements the age-withdraw command
+ * @author Özgür Kesim
+ */
+
+#include "platform.h"
+#include "taler_json_lib.h"
+#include <microhttpd.h>
+#include <gnunet/gnunet_curl_lib.h>
+#include "taler_signatures.h"
+#include "taler_extensions.h"
+#include "taler_testing_lib.h"
+
+/**
+ * State for a "age withdraw" CMD:
+ */
+
+struct AgeWithdrawState
+{
+  /*
+   * Which reserve should we withdraw from?
+   */
+  const char *reserve_reference;
+
+  /**
+   * Expected HTTP response code to the request.
+   */
+  unsigned int expected_response_code;
+
+  /**
+   * The maximum age we commit to
+   */
+  uint8_t max_age;
+
+  /**
+   * Number of coins to withdraw
+   */
+  size_t num_coins;
+};
+
+
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_age_withdraw (const char *label,
+                                const char *reserve_reference,
+                                uint8_t max_age,
+                                unsigned int expected_response_code,
+                                const char *amount,
+                                ...)
+{
+  struct AgeWithdrawState *aws;
+  unsigned int cnt;
+  va_list ap;
+
+  aws = GNUNET_new (struct AgeWithdrawState);
+  aws->max_age = max_age;
+  aws->reserve_reference = reserve_reference;
+  aws->expected_response_code = expected_response_code;
+
+  cnt = 1;
+  va_start (ap, amount);
+  while (NULL != (va_arg (ap, const char *)))
+    cnt++;
+  aws->num_coins = cnt;
+  aws->coins = GNUNET_new_array (cnt,
+                                 struct CoinState);
+  va_end (ap);
+  va_start (ap, amount);
+  for (unsigned int i = 0; i<ws->num_coins; i++)
+  {
+    struct CoinState *cs = &ws->coins[i];
+
+    if (0 < age)
+    {
+      struct TALER_AgeCommitmentProof *acp;
+      struct TALER_AgeCommitmentHash *hac;
+      struct GNUNET_HashCode seed;
+      struct TALER_AgeMask mask;
+
+      acp = GNUNET_new (struct TALER_AgeCommitmentProof);
+      hac = GNUNET_new (struct TALER_AgeCommitmentHash);
+      mask = TALER_extensions_get_age_restriction_mask ();
+      GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
+                                  &seed,
+                                  sizeof(seed));
+
+      if (GNUNET_OK !=
+          TALER_age_restriction_commit (
+            &mask,
+            age,
+            &seed,
+            acp))
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                    "Failed to generate age commitment for age %d at %s\n",
+                    age,
+                    label);
+        GNUNET_assert (0);
+      }
+
+      TALER_age_commitment_hash (&acp->commitment,
+                                 hac);
+      cs->age_commitment_proof = acp;
+      cs->h_age_commitment = hac;
+    }
+
+    if (GNUNET_OK !=
+        TALER_string_to_amount (amount,
+                                &cs->amount))
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Failed to parse amount `%s' at %s\n",
+                  amount,
+                  label);
+      GNUNET_assert (0);
+    }
+    /* move on to next vararg! */
+    amount = va_arg (ap, const char *);
+  }
+  GNUNET_assert (NULL == amount);
+  va_end (ap);
+
+  {
+    struct TALER_TESTING_Command cmd = {
+      .cls = ws,
+      .label = label,
+      .run = &batch_withdraw_run,
+      .cleanup = &batch_withdraw_cleanup,
+      .traits = &batch_withdraw_traits
+    };
+
+    return cmd;
+  }
+}
+
+
+/* end of testing_api_cmd_age_withdraw.c */

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