1 files changed, 264 insertions, 0 deletions
diff --git a/src/lib/testing_api_cmd_status.c b/src/lib/testing_api_cmd_status.c
new file mode 100644
index 000000000..8e9290f6d
--- /dev/null
+++ b/src/lib/testing_api_cmd_status.c
@@ -0,0 +1,264 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014-2018 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/testing_api_cmd_status.c
+ * @brief Implement the /reserve/status test command.
+ * @author Marcello Stanisci
+ */
+#include "platform.h"
+#include "taler_json_lib.h"
+#include <gnunet/gnunet_curl_lib.h>
+#include "exchange_api_handle.h"
+#include "taler_testing_lib.h"
+
+
+/**
+ * State for a "status" CMD.
+ */
+struct StatusState
+{
+  /**
+   * Label to the command which created the reserve to check,
+   * needed to resort the reserve key.
+   */
+  const char *reserve_reference;
+
+  /**
+   * Handle to the "reserve status" operation.
+   */
+  struct TALER_EXCHANGE_ReserveStatusHandle *rsh;
+
+  /**
+   * Expected reserve balance.
+   */
+  const char *expected_balance;
+
+  /**
+   * Expected HTTP response code.
+   */
+  unsigned int expected_response_code;
+
+  /**
+   * Interpreter state.
+   */
+  struct TALER_TESTING_Interpreter *is;
+};
+
+
+/**
+ * Check that the reserve balance and HTTP response code are
+ * both acceptable.
+ *
+ * @param cls closure.
+ * @param http_status HTTP response code.
+ * @param ec taler-specific error code.
+ * @param balance current balance in the reserve, NULL on error.
+ * @param history_length number of entries in the transaction
+ *        history, 0 on error.
+ * @param history detailed transaction history, NULL on error.
+ */
+static void
+reserve_status_cb
+  (void *cls,
+   unsigned int http_status,
+   enum TALER_ErrorCode ec,
+   const json_t *json,
+   const struct TALER_Amount *balance,
+   unsigned int history_length,
+   const struct TALER_EXCHANGE_ReserveHistory *history)
+{
+  struct StatusState *ss = cls;
+  struct TALER_Amount eb;
+
+  ss->rsh = NULL;
+  if (ss->expected_response_code != http_status)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected HTTP response code: %d in %s:%u\n",
+                http_status,
+                __FILE__,
+                __LINE__);
+    TALER_TESTING_interpreter_fail (ss->is);
+    return;
+  }
+
+  GNUNET_assert (GNUNET_OK == TALER_string_to_amount
+    (ss->expected_balance, &eb));
+
+  if (0 != TALER_amount_cmp (&eb, balance))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected amount in reserve: %s\n",
+                TALER_amount_to_string (balance));
+    TALER_TESTING_interpreter_fail (ss->is);
+    return;
+  }
+
+/**
+ * Fixme: need a way to check if reserve history is consistent.
+ * Every command which relates to reserve 'x' should be added in
+ * a linked list of all commands that relate to the same reserve
+ * 'x'.
+ *
+ * API-wise, any command that relates to a reserve should offer a
+ * method called e.g. "compare_with_history" that takes an element
+ * of the array returned by "/reserve/status" and checks if that
+ * element correspond to itself (= the command exposing the check-
+ * method).
+ *
+ * IDEA: Maybe realize this via another trait, some kind of
+ * "reserve history update trait" which returns information about
+ * how the command changes the history (provided only by commands
+ * that change reserve balances)?
+ */
+
+  TALER_TESTING_interpreter_next (ss->is);
+}
+
+
+/**
+ * Run the command.
+ *
+ * @param cls closure.
+ * @param cmd the command being executed.
+ * @param is the interpreter state.
+ */
+static void
+status_run (void *cls,
+            const struct TALER_TESTING_Command *cmd,
+            struct TALER_TESTING_Interpreter *is)
+{
+  struct StatusState *ss = cls;
+  const struct TALER_TESTING_Command *create_reserve;
+  const struct TALER_ReservePrivateKeyP *reserve_priv;
+  struct TALER_ReservePublicKeyP reserve_pub;
+
+  ss->is = is;
+  GNUNET_assert (NULL != ss->reserve_reference);
+
+  create_reserve
+    = TALER_TESTING_interpreter_lookup_command
+      (is, ss->reserve_reference);
+
+  if (NULL == create_reserve)
+  {
+    GNUNET_break (0);
+    TALER_TESTING_interpreter_fail (is);
+    return;
+  }
+
+  /* NOTE: the following line might generate a ERROR log
+   * statements, but it can be ignored.  */
+  if (GNUNET_OK == TALER_TESTING_get_trait_reserve_priv
+      (create_reserve,
+       0,
+       &reserve_priv))
+  {
+    GNUNET_CRYPTO_eddsa_key_get_public (&reserve_priv->eddsa_priv,
+                                        &reserve_pub.eddsa_pub);
+  }
+  else
+  {
+    const char *transfer_subject;
+
+    if (GNUNET_OK != TALER_TESTING_get_trait_transfer_subject
+        (create_reserve,
+         0,
+         &transfer_subject))
+    {
+      GNUNET_break (0);
+      TALER_LOG_ERROR
+        ("The reserve has neither a priv nor a subject line..\n");
+      TALER_TESTING_interpreter_fail (is);
+      return;
+    
+    }
+
+    GNUNET_STRINGS_string_to_data
+      (transfer_subject,
+       strlen (transfer_subject),
+       &reserve_pub.eddsa_pub,
+       sizeof (struct TALER_ReservePublicKeyP));
+  }
+
+  ss->rsh = TALER_EXCHANGE_reserve_status (is->exchange,
+                                           &reserve_pub,
+                                           &reserve_status_cb,
+                                           ss);
+}
+
+
+/**
+ * Cleanup the state from a "reserve status" CMD, and possibly
+ * cancel a pending operation thereof.
+ *
+ * @param cls closure.
+ * @param cmd the command which is being cleaned up.
+ */
+static void
+status_cleanup (void *cls,
+                const struct TALER_TESTING_Command *cmd)
+{
+  struct StatusState *ss = cls;
+
+  if (NULL != ss->rsh)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                "Command %u (%s) did not complete\n",
+                ss->is->ip,
+                cmd->label);
+    TALER_EXCHANGE_reserve_status_cancel (ss->rsh);
+    ss->rsh = NULL;
+  }
+  GNUNET_free (ss);
+}
+
+
+/**
+ * Create a "reserve status" command.
+ *
+ * @param label the command label.
+ * @param reserve_reference reference to the reserve to check.
+ * @param expected_balance expected balance for the reserve.
+ * @param expected_response_code expected HTTP response code.
+ *
+ * @return the command.
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_status (const char *label,
+                          const char *reserve_reference,
+                          const char *expected_balance,
+                          unsigned int expected_response_code)
+{
+  struct StatusState *ss;
+
+  ss = GNUNET_new (struct StatusState);
+  ss->reserve_reference = reserve_reference;
+  ss->expected_balance = expected_balance;
+  ss->expected_response_code = expected_response_code;
+
+  struct TALER_TESTING_Command cmd = {
+    .cls = ss,
+    .label = label,
+    .run = &status_run,
+    .cleanup = &status_cleanup
+  };
+
+  return cmd;
+}