summaryrefslogtreecommitdiff
path: root/src/exchange-lib/testing_api_cmd_track.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/exchange-lib/testing_api_cmd_track.c')
-rw-r--r--src/exchange-lib/testing_api_cmd_track.c819
1 files changed, 819 insertions, 0 deletions
diff --git a/src/exchange-lib/testing_api_cmd_track.c b/src/exchange-lib/testing_api_cmd_track.c
new file mode 100644
index 000000000..40894872b
--- /dev/null
+++ b/src/exchange-lib/testing_api_cmd_track.c
@@ -0,0 +1,819 @@
+/*
+ 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"
+
+struct TrackTransactionState
+{
+
+ /**
+ * Which #OC_CHECK_BANK_TRANSFER wtid should this match? NULL
+ * for none.
+ */
+ const char *bank_transfer_reference;
+
+ /**
+ * Wire transfer identifier, set if #MHD_HTTP_OK was the
+ * response code.
+ */
+ struct TALER_WireTransferIdentifierRawP wtid;
+
+ /**
+ * Expected HTTP response code.
+ */
+ unsigned int expected_response_code;
+
+ /**
+ * Reference to any operation that can provide a transaction.
+ * Tipically a /deposit operation.
+ */
+ const char *transaction_reference;
+
+ /**
+ * Index of the coin involved in the transaction.
+ */
+ unsigned int coin_index;
+
+ /**
+ * Handle to the deposit wtid request.
+ */
+ struct TALER_EXCHANGE_TrackTransactionHandle *tth;
+
+ /**
+ * Handle to the exchange.
+ */
+ struct TALER_EXCHANGE_Handle *exchange;
+
+ /**
+ * Interpreter state.
+ */
+ struct TALER_TESTING_Interpreter *is;
+};
+
+struct TrackTransferState
+{
+
+ /**
+ * Expected amount for this WTID.
+ */
+ const char *expected_total_amount;
+
+ /**
+ * Expected fee for this WTID.
+ */
+ const char *expected_wire_fee;
+
+ /**
+ * Expected HTTP response code.
+ */
+ unsigned int expected_response_code;
+
+ /**
+ * Reference to any operation that can provide a WTID.
+ */
+ const char *wtid_reference;
+
+ /**
+ * Reference to any operation that can provide wire details.
+ */
+ const char *wire_details_reference;
+
+ /**
+ * Reference to any operation that can provide an amount.
+ */
+ const char *total_amount_reference;
+
+ /**
+ * Index to the WTID to pick.
+ */
+ unsigned int index;
+
+ /**
+ * Handle to the deposit wtid request.
+ */
+ struct TALER_EXCHANGE_TrackTransferHandle *tth;
+
+ /**
+ * Handle to the exchange.
+ */
+ struct TALER_EXCHANGE_Handle *exchange;
+
+ /**
+ * Interpreter state.
+ */
+ struct TALER_TESTING_Interpreter *is;
+};
+
+
+/**
+ * Function called with detailed wire transfer data.
+ *
+ * @param cls closure
+ * @param http_status HTTP status code we got, 0 on exchange
+ * protocol violation
+ * @param ec taler-specific error code, #TALER_EC_NONE on success
+ * @param exchange_pub public key the exchange used for signing
+ * @param json original json reply (may include signatures, those
+ * have then been validated already)
+ * @param wtid wire transfer identifier used by the exchange, NULL
+ * if exchange did not yet execute the transaction
+ * @param execution_time actual or planned execution time for the
+ * wire transfer
+ * @param coin_contribution contribution to the @a total_amount of
+ * the deposited coin (may be NULL)
+ * @param total_amount total amount of the wire transfer, or NULL
+ * if the exchange could not provide any @a wtid (set only
+ * if @a http_status is #MHD_HTTP_OK)
+ */
+static void
+deposit_wtid_cb
+ (void *cls,
+ unsigned int http_status,
+ enum TALER_ErrorCode ec,
+ const struct TALER_ExchangePublicKeyP *exchange_pub,
+ const json_t *json,
+ const struct TALER_WireTransferIdentifierRawP *wtid,
+ struct GNUNET_TIME_Absolute execution_time,
+ const struct TALER_Amount *coin_contribution)
+{
+ struct TrackTransactionState *tts = cls;
+ struct TALER_TESTING_Interpreter *is = tts->is;
+ struct TALER_TESTING_Command *cmd = &is->commands[is->ip];
+
+ tts->tth = NULL;
+ if (tts->expected_response_code != http_status)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Unexpected response code %u to command %s\n",
+ http_status,
+ cmd->label);
+ json_dumpf (json, stderr, 0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+ switch (http_status)
+ {
+ case MHD_HTTP_OK:
+ tts->wtid = *wtid;
+ if (NULL != tts->bank_transfer_reference)
+ {
+ const struct TALER_TESTING_Command *bank_transfer_cmd;
+ char *ws;
+
+ ws = GNUNET_STRINGS_data_to_string_alloc (wtid,
+ sizeof (*wtid));
+ bank_transfer_cmd = TALER_TESTING_interpreter_lookup_command
+ (is, tts->bank_transfer_reference);
+
+ if (NULL == bank_transfer_cmd)
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+
+ char *transfer_subject;
+
+ if (GNUNET_OK != TALER_TESTING_get_trait_transfer_subject
+ (bank_transfer_cmd, 0, &transfer_subject))
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+
+ if (0 != strcmp (ws, transfer_subject))
+ {
+ GNUNET_break (0);
+ GNUNET_free (ws);
+ TALER_TESTING_interpreter_fail (tts->is);
+ return;
+ }
+
+ GNUNET_free (ws);
+ }
+ break;
+ case MHD_HTTP_ACCEPTED:
+ /* allowed, nothing to check here */
+ break;
+ case MHD_HTTP_NOT_FOUND:
+ /* allowed, nothing to check here */
+ break;
+ default:
+ GNUNET_break (0);
+ break;
+ }
+ TALER_TESTING_interpreter_next (tts->is);
+}
+
+/**
+ * Run the command.
+ *
+ * @param cls closure, typically a #struct WireState.
+ * @param cmd the command to execute, a /track/transaction one.
+ * @param is the interpreter state.
+ */
+void
+track_transaction_run (void *cls,
+ const struct TALER_TESTING_Command *cmd,
+ struct TALER_TESTING_Interpreter *is)
+{
+ struct TrackTransactionState *tts = cls;
+ const struct TALER_TESTING_Command *transaction_cmd;
+ struct TALER_CoinSpendPrivateKeyP *coin_priv;
+ struct TALER_CoinSpendPublicKeyP coin_pub;
+ const char *wire_details;
+ const char *contract_terms;
+ json_t *j_wire_details;
+ json_t *j_contract_terms;
+ struct GNUNET_HashCode h_wire_details;
+ struct GNUNET_HashCode h_contract_terms;
+ const struct GNUNET_CRYPTO_EddsaPrivateKey *merchant_priv;
+
+ tts->is = is;
+ transaction_cmd = TALER_TESTING_interpreter_lookup_command
+ (tts->is, tts->transaction_reference);
+
+ if (NULL == transaction_cmd)
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (tts->is);
+ return;
+ }
+
+ if (GNUNET_OK != TALER_TESTING_get_trait_coin_priv
+ (transaction_cmd, tts->coin_index, &coin_priv))
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (tts->is);
+ return;
+ }
+
+ GNUNET_CRYPTO_eddsa_key_get_public (&coin_priv->eddsa_priv,
+ &coin_pub.eddsa_pub);
+
+ /* Get the strings.. */
+ if (GNUNET_OK != TALER_TESTING_get_trait_wire_details
+ (transaction_cmd, 0, &wire_details))
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (tts->is);
+ return;
+ }
+
+ if (GNUNET_OK != TALER_TESTING_get_trait_contract_terms
+ (transaction_cmd, 0, &contract_terms))
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (tts->is);
+ return;
+ }
+
+ /* Parse them.. */
+ j_wire_details = json_loads
+ (wire_details, JSON_REJECT_DUPLICATES, NULL);
+ j_contract_terms = json_loads
+ (contract_terms, JSON_REJECT_DUPLICATES, NULL);
+
+ if ((NULL == j_wire_details) || (NULL == j_contract_terms))
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (tts->is);
+ return;
+ }
+
+ /* Should not fail here, json has been parsed already */
+ GNUNET_assert
+ ( (GNUNET_OK == TALER_JSON_hash (j_wire_details,
+ &h_wire_details)) &&
+ (GNUNET_OK == TALER_JSON_hash (j_contract_terms,
+ &h_contract_terms)) );
+
+ if (GNUNET_OK != TALER_TESTING_get_trait_peer_key
+ (transaction_cmd, 0, &merchant_priv))
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (tts->is);
+ return;
+ }
+
+ tts->tth = TALER_EXCHANGE_track_transaction
+ (tts->exchange,
+ (struct TALER_MerchantPrivateKeyP *) merchant_priv,
+ &h_wire_details,
+ &h_contract_terms,
+ &coin_pub,
+ &deposit_wtid_cb,
+ tts);
+
+ GNUNET_assert (NULL != tts->tth);
+}
+
+/**
+ * Cleanup the state.
+ *
+ * @param cls closure, typically a #struct WireState.
+ * @param cmd the command which is being cleaned up.
+ */
+void
+track_transaction_cleanup
+ (void *cls,
+ const struct TALER_TESTING_Command *cmd)
+{
+ struct TrackTransactionState *tts = cls;
+
+ if (NULL != tts->tth)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Command %u (%s) did not complete\n",
+ tts->is->ip,
+ cmd->label);
+ TALER_EXCHANGE_track_transaction_cancel (tts->tth);
+ tts->tth = NULL;
+ }
+ GNUNET_free (tts);
+}
+
+
+/**
+ * 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
+track_transaction_traits (void *cls,
+ void **ret,
+ const char *trait,
+ unsigned int index)
+{
+ struct TrackTransactionState *tts = cls;
+
+ struct TALER_TESTING_Trait traits[] = {
+ TALER_TESTING_make_trait_wtid (0, &tts->wtid),
+ TALER_TESTING_trait_end ()
+ };
+
+ return TALER_TESTING_get_trait (traits,
+ ret,
+ trait,
+ index);
+}
+
+/**
+ * Create a /track/transaction command.
+ *
+ * @param label the command label.
+ * @param exchange the exchange to connect to.
+ * @param transaction_reference reference to a deposit operation.
+ * @param coin_index index of the coin involved in the transaction
+ * @param expected_response_code expected HTTP response code.
+ * @param bank_transfer_reference which #OC_CHECK_BANK_TRANSFER
+ * wtid should this match? NULL
+ * for none
+ *
+ * @return the command to be executed by the interpreter.
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_track_transaction
+ (const char *label,
+ struct TALER_EXCHANGE_Handle *exchange,
+ const char *transaction_reference,
+ unsigned int coin_index,
+ unsigned int expected_response_code,
+ const char *bank_transfer_reference)
+{
+ struct TALER_TESTING_Command cmd;
+ struct TrackTransactionState *tts;
+
+ tts = GNUNET_new (struct TrackTransactionState);
+ tts->exchange = exchange;
+ tts->transaction_reference = transaction_reference;
+ tts->expected_response_code = expected_response_code;
+ tts->bank_transfer_reference = bank_transfer_reference;
+ tts->coin_index = coin_index;
+
+ cmd.cls = tts;
+ cmd.label = label;
+ cmd.run = &track_transaction_run;
+ cmd.cleanup = &track_transaction_cleanup;
+ cmd.traits = &track_transaction_traits;
+
+ return cmd;
+
+}
+
+/**
+ * Cleanup the state.
+ *
+ * @param cls closure.
+ * @param cmd the command which is being cleaned up.
+ */
+void
+track_transfer_cleanup (void *cls,
+ const struct TALER_TESTING_Command *cmd)
+{
+
+ struct TrackTransferState *tts = cls;
+
+ if (NULL != tts->tth)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Command %u (%s) did not complete\n",
+ tts->is->ip,
+ cmd->label);
+ TALER_EXCHANGE_track_transfer_cancel (tts->tth);
+ tts->tth = NULL;
+ }
+ GNUNET_free (tts);
+
+}
+
+/**
+ * Function called with detailed wire transfer data, including all
+ * of the coin transactions that were combined into the wire
+ * transfer.
+ *
+ * @param cls closure
+ * @param http_status HTTP status code we got, 0 on exchange
+ * protocol violation
+ * @param ec taler-specific error code, #TALER_EC_NONE on success
+ * @param exchange_pub public key the exchange used for signing
+ * @param json original json reply (may include signatures, those
+ * have then been validated already)
+ * @param h_wire hash of the wire transfer address the transfer
+ * went to, or NULL on error
+ * @param execution_time time when the exchange claims to have
+ * performed the wire transfer
+ * @param total_amount total amount of the wire transfer, or NULL
+ * if the exchange could not provide any @a wtid (set only
+ * if @a http_status is #MHD_HTTP_OK)
+ * @param wire_fee wire fee that was charged by the exchange
+ * @param details_length length of the @a details array
+ * @param details array with details about the combined
+ * transactions
+ */
+static void
+track_transfer_cb
+ (void *cls,
+ unsigned int http_status,
+ enum TALER_ErrorCode ec,
+ const struct TALER_ExchangePublicKeyP *exchange_pub,
+ const json_t *json,
+ const struct GNUNET_HashCode *h_wire,
+ struct GNUNET_TIME_Absolute execution_time,
+ const struct TALER_Amount *total_amount,
+ const struct TALER_Amount *wire_fee,
+ unsigned int details_length,
+ const struct TALER_TrackTransferDetails *details)
+{
+ struct TrackTransferState *tts = cls;
+ struct TALER_TESTING_Interpreter *is = tts->is;
+ struct TALER_TESTING_Command *cmd = &is->commands[is->ip];
+
+ const struct TALER_TESTING_Command *wtid_cmd;
+ struct TALER_Amount expected_amount;
+
+ tts->tth = NULL;
+
+ if (tts->expected_response_code != http_status)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Unexpected response code %u to command %s\n",
+ http_status,
+ cmd->label);
+ json_dumpf (json, stderr, 0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+
+ switch (http_status)
+ {
+
+ if (
+ (NULL == tts->expected_total_amount) ||
+ (NULL == tts->expected_wire_fee))
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Expected amount and fee not specified, "
+ "likely to segfault...\n");
+
+ case MHD_HTTP_OK:
+ if (GNUNET_OK !=
+ TALER_string_to_amount (tts->expected_total_amount,
+ &expected_amount))
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+ if (0 != TALER_amount_cmp (total_amount,
+ &expected_amount))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Total amount missmatch to command %s - "
+ "%s vs %s\n",
+ cmd->label,
+ TALER_amount_to_string (total_amount),
+ TALER_amount_to_string (&expected_amount));
+ json_dumpf (json, stderr, 0);
+ fprintf (stderr, "\n");
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+
+ if (GNUNET_OK !=
+ TALER_string_to_amount (tts->expected_wire_fee,
+ &expected_amount))
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+
+ if (0 != TALER_amount_cmp (wire_fee,
+ &expected_amount))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Wire fee missmatch to command %s\n",
+ cmd->label);
+ json_dumpf (json, stderr, 0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+
+ wtid_cmd = TALER_TESTING_interpreter_lookup_command
+ (is, tts->wtid_reference);
+
+ if (NULL == wtid_cmd)
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+
+ /**
+ * Optionally checking: (1) wire-details for this transfer
+ * match the ones from a referenced "deposit" operation -
+ * or any operation that could provide wire-details. (2)
+ * Total amount for this transfer matches the one from any
+ * referenced command that could provide one.
+ */
+
+ if (NULL != tts->wire_details_reference)
+ {
+ const struct TALER_TESTING_Command *wire_details_cmd;
+ const char *wire_details;
+ json_t *j_wire_details;
+ struct GNUNET_HashCode h_wire_details;
+
+ if (NULL == (wire_details_cmd
+ = TALER_TESTING_interpreter_lookup_command
+ (is, tts->wire_details_reference)))
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+
+ if (GNUNET_OK != TALER_TESTING_get_trait_wire_details
+ (wire_details_cmd, 0, &wire_details))
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+
+ j_wire_details = json_loads
+ (wire_details, JSON_REJECT_DUPLICATES, NULL);
+
+ GNUNET_assert (NULL != j_wire_details);
+
+ GNUNET_assert (GNUNET_OK == TALER_JSON_hash
+ (j_wire_details, &h_wire_details));
+
+ if (0 != memcmp (&h_wire_details,
+ h_wire,
+ sizeof (struct GNUNET_HashCode)))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Wire hash missmath to command %s\n",
+ cmd->label);
+ json_dumpf (json, stderr, 0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+ }
+ if (NULL != tts->total_amount_reference)
+ {
+ const struct TALER_TESTING_Command *total_amount_cmd;
+ const char *total_amount_from_reference_str;
+ struct TALER_Amount total_amount_from_reference;
+
+ if (NULL == (total_amount_cmd
+ = TALER_TESTING_interpreter_lookup_command
+ (is, tts->total_amount_reference)))
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+
+ if (GNUNET_OK != TALER_TESTING_get_trait_amount
+ (total_amount_cmd, 0, &total_amount_from_reference_str))
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+
+ GNUNET_assert (GNUNET_OK == TALER_string_to_amount
+ (total_amount_from_reference_str,
+ &total_amount_from_reference));
+
+ if (0 != TALER_amount_cmp (total_amount,
+ &total_amount_from_reference))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Amount missmath to command %s\n",
+ cmd->label);
+ json_dumpf (json, stderr, 0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+ }
+ }
+ TALER_TESTING_interpreter_next (is);
+}
+
+/**
+ * Run the command.
+ *
+ * @param cls closure.
+ * @param cmd the command to execute, a /track/transfer one.
+ * @param is the interpreter state.
+ */
+void
+track_transfer_run (void *cls,
+ const struct TALER_TESTING_Command *cmd,
+ struct TALER_TESTING_Interpreter *is)
+{
+ /* looking for a wtid to track .. */
+
+ struct TrackTransferState *tts = cls;
+ struct TALER_WireTransferIdentifierRawP wtid;
+ struct TALER_WireTransferIdentifierRawP *wtid_ptr;
+
+ /* If no reference is given, we'll use a all-zeros
+ * WTID */
+ memset (&wtid, 0, sizeof (wtid));
+ wtid_ptr = &wtid;
+
+ tts->is = is;
+ if (NULL != tts->wtid_reference)
+ {
+ const struct TALER_TESTING_Command *wtid_cmd;
+
+ wtid_cmd = TALER_TESTING_interpreter_lookup_command
+ (tts->is, tts->wtid_reference);
+
+ if (NULL == wtid_cmd)
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (tts->is);
+ return;
+ }
+
+ if (GNUNET_OK != TALER_TESTING_get_trait_wtid
+ (wtid_cmd, tts->index, &wtid_ptr))
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (tts->is);
+ return;
+ }
+ }
+ tts->tth = TALER_EXCHANGE_track_transfer (tts->exchange,
+ wtid_ptr,
+ &track_transfer_cb,
+ tts);
+
+ GNUNET_assert (NULL != tts->tth);
+}
+
+/**
+ * Make a /track/transfer command, expecting the transfer
+ * not being done (yet).
+ *
+ * @param label the command label
+ * @param exchange connection to the exchange
+ * @param wtid_reference reference to any command which can provide
+ * a wtid
+ * @param index in case there are multiple wtid offered, this
+ * parameter selects a particular one
+ * @param expected_response_code expected HTTP response code
+ *
+ * @return the command
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_track_transfer_empty
+ (const char *label,
+ struct TALER_EXCHANGE_Handle *exchange,
+ const char *wtid_reference,
+ unsigned int index,
+ unsigned int expected_response_code)
+{
+ struct TrackTransferState *tts;
+ struct TALER_TESTING_Command cmd;
+
+ tts = GNUNET_new (struct TrackTransferState);
+
+ tts->wtid_reference = wtid_reference;
+ tts->index = index;
+ tts->expected_response_code = expected_response_code;
+ tts->exchange = exchange;
+
+ cmd.cls = tts;
+ cmd.label = label;
+ cmd.run = &track_transfer_run;
+ cmd.cleanup = &track_transfer_cleanup;
+
+ return cmd;
+}
+
+/**
+ * Make a /track/transfer command, specifying which amount and
+ * wire fee are expected.
+ *
+ * @param label the command label
+ * @param exchange connection to the exchange
+ * @param wtid_reference reference to any command which can provide
+ * a wtid
+ * @param index in case there are multiple wtid offered, this
+ * parameter selects a particular one
+ * @param expected_response_code expected HTTP response code
+ * @param expected_amount how much money we expect being
+ * moved with this wire-transfer.
+ * @param expected_wire_fee expected wire fee.
+ *
+ * @return the command
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_track_transfer
+ (const char *label,
+ struct TALER_EXCHANGE_Handle *exchange,
+ const char *wtid_reference,
+ unsigned int index,
+ unsigned int expected_response_code,
+ const char *expected_total_amount,
+ const char *expected_wire_fee)
+{
+ struct TrackTransferState *tts;
+ struct TALER_TESTING_Command cmd;
+
+ tts = GNUNET_new (struct TrackTransferState);
+
+ tts->wtid_reference = wtid_reference;
+ tts->index = index;
+ tts->expected_response_code = expected_response_code;
+ tts->exchange = exchange;
+ tts->expected_total_amount = expected_total_amount;
+ tts->expected_wire_fee = expected_wire_fee;
+
+ cmd.cls = tts;
+ cmd.label = label;
+ cmd.run = &track_transfer_run;
+ cmd.cleanup = &track_transfer_cleanup;
+
+ return cmd;
+}