new test interpreter architecture, first draft

1 files changed, 193 insertions, 0 deletions

diff --git a/src/exchange-lib/testing_api_cmd_withdraw.c b/src/exchange-lib/testing_api_cmd_withdraw.c
new file mode 100644
index 000000000..bee467eb7
--- /dev/null
+++ b/src/exchange-lib/testing_api_cmd_withdraw.c
@@ -0,0 +1,193 @@
+/*
+  This file is part of TALER
+  Copyright (C) 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-lib/testing_api_cmd_withdraw.c
+ * @brief main interpreter loop for testcases
+ * @author Christian Grothoff
+ * @author Marcello Stanisci
+ */
+#include "platform.h"
+#include "taler_json_lib.h"
+#include <gnunet/gnunet_curl_lib.h>
+#include "exchange_api_handle.h"
+#include "taler_signatures.h"
+
+
+struct WithdrawState
+{
+
+  /**
+   * Which reserve should we withdraw from?
+   */
+  const char *reserve_reference;
+
+  /**
+   * String describing the denomination value we should withdraw.
+   * A corresponding denomination key must exist in the exchange's
+   * offerings.  Can be NULL if @e pk is set instead.
+   */
+  struct TALER_Amount amount;
+
+  /**
+   * If @e amount is NULL, this specifies the denomination key to
+   * use.  Otherwise, this will be set (by the interpreter) to the
+   * denomination PK matching @e amount.
+   */
+  const struct TALER_EXCHANGE_DenomPublicKey *pk;
+
+  /**
+   * Set (by the interpreter) to the exchange's signature over the
+   * coin's public key.
+   */
+  struct TALER_DenominationSignature sig;
+
+  /**
+   * Private key material of the coin, set by the interpreter.
+   */
+  struct TALER_PlanchetSecretsP ps;
+
+  /**
+   * Withdraw handle (while operation is running).
+   */
+  struct TALER_EXCHANGE_ReserveWithdrawHandle *wsh;
+
+};
+
+
+  /**
+   * Runs the command.  Note that upon return, the interpreter
+   * will not automatically run the next command, as the command
+   * may continue asynchronously in other scheduler tasks.  Thus,
+   * the command must ensure to eventually call
+   * #TALER_TESTING_interpreter_next() or
+   * #TALER_TESTING_interpreter_fail().
+   *
+   * @param i interpreter state
+   */
+static void
+withdraw_run (void *cls,
+              struct TALER_TESTING_Interpreter *i)
+{
+  struct WithdrawState *ws = cls;
+  struct TALER_ReservePrivateKeyP rp;
+  struct TALER_TESTING_Command *create_reserve;
+
+  create_reserve
+    = TALER_TESTING_interpreter_lookup_command (i,
+                                                ws->reserve_reference);
+  if (NULL == create_reserve)
+  {
+    GNUNET_break (0);
+    TALER_TESTING_interpreter_fail (i);
+    return;
+  }
+  if (GNUNET_OK !=
+      TALER_TESTING_get_trait_reserve_priv (create_reserve,
+                                            NULL,
+                                            &rp))
+  {
+    GNUNET_break (0);
+    TALER_TESTING_interpreter_fail (i);
+    return;
+  }
+  // ... trigger withdraw
+  // ... eventually: TALER_TESTING_interpreter_next (i);
+}
+
+
+/**
+ * Clean up after the command.  Run during forced termination
+ * (CTRL-C) or test failure or test success.
+ *
+ * @param cls closure
+ */
+static void
+withdraw_cleanup (void *cls)
+{
+  struct WithdrawState *ws = cls;
+
+}
+
+
+/**
+ * Extract information from a command that is useful for other
+ * commands.
+ *
+ * @param cls closure
+ * @param ret[out] result (could be anything)
+ * @param trait name of the trait
+ * @param selector more detailed information about which object
+ *                 to return in case there were multiple generated
+ *                 by the command
+ * @return #GNUNET_OK on success
+ */
+static int
+withdraw_traits (void *cls,
+                 void **ret,
+                 const char *trait,
+                 const char *selector)
+{
+  struct WithdrawState *ws = cls;
+  struct TALER_INTERPRETER_Trait traits[] = {
+    TALER_TESTING_make_trait_coin_priv (NULL /* only one coin */,
+                                        &ws->ps.coin_priv),
+#if 0
+    TALER_TESTING_make_trait_coin_blinding_key (NULL /* only one coin */,
+                                                &ws->ps.blinding_key),
+    TALER_TESTING_make_trait_coin_denomination_key (NULL /* only one coin */,
+                                                    ws->pk),
+    TALER_TESTING_make_trait_coin_denomination_sig (NULL /* only one coin */,
+                                                    &ws->sig),
+#endif
+    TALER_TESTING_trait_end ()
+  };
+
+  return TALER_TESTING_get_trait (traits,
+                                  ret,
+                                  trait,
+                                  selector);
+}
+
+
+/**
+ * Create withdraw command.
+ *
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_withdraw_amount (const char *label,
+                                   const char *reserve_reference,
+                                   const char *amount)
+{
+  struct TALER_TESTING_Command cmd;
+  struct WithdrawState *ws;
+
+  ws = GNUNET_new (struct WithdrawState);
+  ws->reserve_reference = reserve_reference;
+  // convert amount -> ws->amount;
+  cmd.cls = ws;
+  cmd.label = label;
+  cmd.run = &withdraw_run;
+  cmd.cleanup = &withdraw_cleanup;
+  cmd.traits = &withdraw_traits;
+  return cmd;
+}
+
+
+
+
+
+/* end of testing_api_cmd_withdraw.c */