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add skeleton for auditor httpd tests

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This commit is contained in:
Christian Grothoff 2018-11-10 13:58:02 +01:00
parent ac850bfcd2
commit 42a21ffc8e
No known key found for this signature in database
GPG Key ID: 939E6BE1E29FC3CC
7 changed files with 800 additions and 4 deletions
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6
src/Makefile.am
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@ -22,12 +22,12 @@ pkgcfg_DATA = \
EXTRA_DIST = \
taler.conf
SUBDIRS = include util wire json $(PQ_DIR) $(BANK_LIB) wire-plugins exchangedb exchange exchange-tools auditordb auditor auditor-lib
SUBDIRS = include util wire json $(PQ_DIR) $(BANK_LIB) wire-plugins exchangedb exchange exchange-tools auditordb auditor
if HAVE_LIBCURL
SUBDIRS += exchange-lib benchmark
SUBDIRS += exchange-lib auditor-lib benchmark
else
if HAVE_LIBGNURL
SUBDIRS += exchange-lib benchmark
SUBDIRS += exchange-lib auditor-lib benchmark
endif
endif

1
src/auditor-lib/.gitignore vendored Normal file
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@ -0,0 +1 @@
test_auditor_api

51
src/auditor-lib/Makefile.am
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@ -7,7 +7,8 @@ if USE_COVERAGE
endif
lib_LTLIBRARIES = \
libtalerauditor.la
libtalerauditor.la \
libtalerauditortesting.la
libtalerauditor_la_LDFLAGS = \
-version-info 0:0:0 \
@ -33,3 +34,51 @@ if HAVE_LIBGNURL
libtalerauditor_la_LIBADD += -lgnurl
endif
endif
libtalerauditortesting_la_LDFLAGS = \
-version-info 0:0:0 \
-no-undefined
libtalerauditortesting_la_SOURCES = \
testing_auditor_api_helpers.c
libtalerauditortesting_la_LIBADD = \
libtalerauditor.la \
$(top_builddir)/src/exchange-lib/libtalerexchange.la \
$(top_builddir)/src/exchange-lib/libtalertesting.la \
$(top_builddir)/src/wire/libtalerwire.la \
$(top_builddir)/src/json/libtalerjson.la \
$(top_builddir)/src/util/libtalerutil.la \
-lgnunetcurl \
-lgnunetjson \
-lgnunetutil \
-ljansson \
$(XLIB)
check_PROGRAMS = \
test_auditor_api
AM_TESTS_ENVIRONMENT=export TALER_PREFIX=$${TALER_PREFIX:-@libdir@};export PATH=$${TALER_PREFIX:-@prefix@}/bin:$$PATH;
TESTS = \
$(check_PROGRAMS)
test_auditor_api_SOURCES = \
test_auditor_api.c
test_auditor_api_LDADD = \
libtalerauditortesting.la \
libtalerauditor.la \
$(top_builddir)/src/exchange-lib/libtalertesting.la \
$(top_builddir)/src/exchange-lib/libtalerexchange.la \
$(LIBGCRYPT_LIBS) \
$(top_builddir)/src/bank-lib/libtalerfakebank.la \
$(top_builddir)/src/bank-lib/libtalerbank.la \
$(top_builddir)/src/json/libtalerjson.la \
$(top_builddir)/src/util/libtalerutil.la \
-lgnunetcurl \
-lgnunetutil \
-ljansson
EXTRA_DIST = \
test_auditor_api.conf

200
src/auditor-lib/test_auditor_api.c Normal file
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@ -0,0 +1,200 @@
/*
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 auditor-lib/test_auditor_api.c
* @brief testcase to test auditor's HTTP API interface
* @author Christian Grothoff
* @author Marcello Stanisci
*/
#include "platform.h"
#include "taler_util.h"
#include "taler_signatures.h"
#include "taler_exchange_service.h"
#include "taler_auditor_service.h"
#include "taler_json_lib.h"
#include <gnunet/gnunet_util_lib.h>
#include <microhttpd.h>
#include "taler_bank_service.h"
#include "taler_fakebank_lib.h"
#include "taler_testing_lib.h"
#include "taler_testing_auditor_lib.h"
/**
* Configuration file we use. One (big) configuration is used
* for the various components for this test.
*/
#define CONFIG_FILE "test_auditor_api.conf"
/**
* URL of the fakebank. Obtained from CONFIG_FILE's
* "exchange-wire-test:BANK_URI" option.
*/
static char *fakebank_url;
/**
* Auditor base URL as it appears in the configuration. Note
* that it might differ from the one where the exchange actually
* listens from.
*/
static char *auditor_url;
/**
* Exchange base URL as it appears in the configuration. Note
* that it might differ from the one where the exchange actually
* listens from.
*/
static char *exchange_url;
/**
* Account number of the exchange at the bank.
*/
#define EXCHANGE_ACCOUNT_NO 2
/**
* Account number of some user.
*/
#define USER_ACCOUNT_NO 42
/**
* User name. Never checked by fakebank.
*/
#define USER_LOGIN_NAME "user42"
/**
* User password. Never checked by fakebank.
*/
#define USER_LOGIN_PASS "pass42"
/**
* Execute the taler-exchange-wirewatch command with
* our configuration file.
*
* @param label label to use for the command.
*/
#define CMD_EXEC_WIREWATCH(label) \
TALER_TESTING_cmd_exec_wirewatch (label, CONFIG_FILE)
/**
* Execute the taler-exchange-aggregator command with
* our configuration file.
*
* @param label label to use for the command.
*/
#define CMD_EXEC_AGGREGATOR(label) \
TALER_TESTING_cmd_exec_aggregator (label, CONFIG_FILE)
/**
* Run wire transfer of funds from some user's account to the
* exchange.
*
* @param label label to use for the command.
* @param amount amount to transfer, i.e. "EUR:1"
*/
#define CMD_TRANSFER_TO_EXCHANGE(label,amount) \
TALER_TESTING_cmd_fakebank_transfer (label, amount, \
fakebank_url, USER_ACCOUNT_NO, EXCHANGE_ACCOUNT_NO, \
USER_LOGIN_NAME, USER_LOGIN_PASS, exchange_url)
/**
* Run wire transfer of funds from some user's account to the
* exchange.
*
* @param label label to use for the command.
* @param amount amount to transfer, i.e. "EUR:1"
*/
#define CMD_TRANSFER_TO_EXCHANGE_SUBJECT(label,amount,subject) \
TALER_TESTING_cmd_fakebank_transfer_with_subject \
(label, amount, fakebank_url, USER_ACCOUNT_NO, \
EXCHANGE_ACCOUNT_NO, USER_LOGIN_NAME, USER_LOGIN_PASS, \
subject, exchange_url)
/**
* Main function that will tell the interpreter what commands to
* run.
*
* @param cls closure
*/
static void
run (void *cls,
struct TALER_TESTING_Interpreter *is)
{
struct TALER_TESTING_Command commands[] = {
/**
* End the suite. Fixme: better to have a label for this
* too, as it shows a "(null)" token on logs.
*/
TALER_TESTING_cmd_end ()
};
TALER_TESTING_run_with_fakebank (is,
commands,
fakebank_url);
}
int
main (int argc,
char * const *argv)
{
/* These environment variables get in the way... */
unsetenv ("XDG_DATA_HOME");
unsetenv ("XDG_CONFIG_HOME");
GNUNET_log_setup ("test-auditor-api",
"INFO",
NULL);
if (NULL == (fakebank_url
/* Check fakebank port is available and config cares
* about bank url. */
= TALER_TESTING_prepare_fakebank (CONFIG_FILE,
"account-2")))
return 77;
TALER_TESTING_AUDITOR_cleanup_files (CONFIG_FILE);
/* @helpers. Run keyup, create tables, ... Note: it
* fetches the port number from config in order to see
* if it's available. */
switch (TALER_TESTING_AUDITOR_prepare_auditor (CONFIG_FILE,
&auditor_url,
&exchange_url))
{
case GNUNET_SYSERR:
GNUNET_break (0);
return 1;
case GNUNET_NO:
return 77;
case GNUNET_OK:
if (GNUNET_OK !=
/* Set up event loop and reschedule context, plus
* start/stop the exchange. It calls TALER_TESTING_setup
* which creates the 'is' object.
*/
TALER_TESTING_AUDITOR_setup_with_auditor (&run,
NULL,
CONFIG_FILE))
return 1;
break;
default:
GNUNET_break (0);
return 1;
}
return 0;
}
/* end of test_auditor_api.c */

0
src/auditor-lib/test_auditor_api.conf Normal file
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448
src/auditor-lib/testing_auditor_api_helpers.c Normal file
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@ -0,0 +1,448 @@
/*
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 auditor-lib/testing_auditor_api_helpers.c
* @brief helper functions
* @author Christian Grothoff
* @author Marcello Stanisci
*/
#include "platform.h"
#include "taler_json_lib.h"
#include <gnunet/gnunet_curl_lib.h>
#include "taler_signatures.h"
#include "taler_testing_lib.h"
/**
* Remove files from previous runs
*
* @param config_name configuration filename.
*/
void
TALER_TESTING_AUDITOR_cleanup_files (const char *config_name)
{
struct GNUNET_CONFIGURATION_Handle *cfg;
char *dir;
TALER_TESTING_cleanup_files (config_name);
// TODO: auditor-specific clean-up here!
cfg = GNUNET_CONFIGURATION_create ();
if (GNUNET_OK !=
GNUNET_CONFIGURATION_load (cfg,
config_name))
{
GNUNET_break (0);
GNUNET_CONFIGURATION_destroy (cfg);
exit (77);
}
#if FIXME
GNUNET_assert (GNUNET_OK ==
GNUNET_CONFIGURATION_get_value_filename
(cfg,
"exchange",
"keydir",
&dir));
if (GNUNET_YES ==
GNUNET_DISK_directory_test (dir,
GNUNET_NO))
GNUNET_break (GNUNET_OK ==
GNUNET_DISK_directory_remove (dir));
GNUNET_free (dir);
#endif
GNUNET_CONFIGURATION_destroy (cfg);
}
/**
* Prepare launching an auditor and exchange. Checks that the configured
* port is available, runs taler-exchange-keyup, taler-auditor-exchange,
* taler-auditor-sign and taler-exchange-dbinit. Does NOT
* launch the exchange process itself.
*
* @param config_filename configuration file to use
* @param auditor_base_url[out] will be set to the auditor base url,
* if the config has any; otherwise it will be set to
* NULL.
* @param exchange_base_url[out] will be set to the exchange base url,
* if the config has any; otherwise it will be set to
* NULL.
* @return #GNUNET_OK on success, #GNUNET_NO if test should be
* skipped, #GNUNET_SYSERR on test failure
*/
int
TALER_TESTING_AUDITOR_prepare_auditor (const char *config_filename,
char **auditor_base_url,
char **exchange_base_url)
{
struct GNUNET_OS_Process *proc;
enum GNUNET_OS_ProcessStatusType type;
unsigned long code;
struct GNUNET_CONFIGURATION_Handle *cfg;
char *test_home_dir;
char *signed_keys_out;
char *exchange_master_pub;
proc = GNUNET_OS_start_process (GNUNET_NO,
GNUNET_OS_INHERIT_STD_ALL,
NULL, NULL, NULL,
"taler-exchange-keyup",
"taler-exchange-keyup",
"-c", config_filename,
"-o", "auditor.in",
NULL);
if (NULL == proc)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to run `taler-exchange-keyup`,"
" is your PATH correct?\n");
return GNUNET_NO;
}
GNUNET_OS_process_wait (proc);
GNUNET_OS_process_destroy (proc);
cfg = GNUNET_CONFIGURATION_create ();
if (GNUNET_OK != GNUNET_CONFIGURATION_load
(cfg, config_filename))
return GNUNET_SYSERR;
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_string (cfg,
"exchange",
"BASE_URL",
exchange_base_url))
{
GNUNET_log_config_missing (GNUNET_ERROR_TYPE_WARNING,
"exchange",
"BASE_URL");
*exchange_base_url = NULL;
}
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_filename (cfg,
"paths",
"TALER_TEST_HOME",
&test_home_dir))
{
GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
"paths",
"TALER_TEST_HOME");
GNUNET_CONFIGURATION_destroy (cfg);
return GNUNET_SYSERR;
}
GNUNET_asprintf (&signed_keys_out,
"%s/.local/share/taler/auditors/auditor.out",
test_home_dir);
GNUNET_free (test_home_dir);
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_string (cfg,
"exchange",
"MASTER_PUBLIC_KEY",
&exchange_master_pub))
{
GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
"exchange",
"MASTER_PUBLIC_KEY");
GNUNET_CONFIGURATION_destroy (cfg);
return GNUNET_SYSERR;
}
GNUNET_CONFIGURATION_destroy (cfg);
proc = GNUNET_OS_start_process (GNUNET_NO,
GNUNET_OS_INHERIT_STD_ALL,
NULL, NULL, NULL,
"taler-auditor-sign",
"taler-auditor-sign",
"-c", config_filename,
"-u", "http://auditor/",
"-m", exchange_master_pub,
"-r", "auditor.in",
"-o", signed_keys_out,
NULL);
if (NULL == proc)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to run `taler-auditor-sign`,"
" is your PATH correct?\n");
GNUNET_free (signed_keys_out);
GNUNET_free (exchange_master_pub);
return GNUNET_NO;
}
GNUNET_free (exchange_master_pub);
GNUNET_free (signed_keys_out);
GNUNET_OS_process_wait (proc);
GNUNET_OS_process_destroy (proc);
/* Reset exchange database. */
proc = GNUNET_OS_start_process (GNUNET_NO,
GNUNET_OS_INHERIT_STD_ALL,
NULL, NULL, NULL,
"taler-exchange-dbinit",
"taler-exchange-dbinit",
"-c", config_filename,
"-r",
NULL);
if (NULL == proc)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to run `taler-exchange-dbinit`,"
" is your PATH correct?\n");
return GNUNET_NO;
}
if (GNUNET_SYSERR ==
GNUNET_OS_process_wait_status (proc,
&type,
&code))
{
GNUNET_break (0);
GNUNET_OS_process_destroy (proc);
return GNUNET_SYSERR;
}
GNUNET_OS_process_destroy (proc);
if ( (type == GNUNET_OS_PROCESS_EXITED) &&
(0 != code) )
{
fprintf (stderr,
"Failed to setup (exchange) database\n");
return GNUNET_NO;
}
if ( (type != GNUNET_OS_PROCESS_EXITED) ||
(0 != code) )
{
fprintf (stderr,
"Unexpected error running"
" `taler-exchange-dbinit'!\n");
return GNUNET_SYSERR;
}
/* Reset auditor database. */
proc = GNUNET_OS_start_process (GNUNET_NO,
GNUNET_OS_INHERIT_STD_ALL,
NULL, NULL, NULL,
"taler-auditor-dbinit",
"taler-auditor-dbinit",
"-c", config_filename,
"-r",
NULL);
if (NULL == proc)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
"Failed to run `taler-auditor-dbinit`,"
" is your PATH correct?\n");
return GNUNET_NO;
}
if (GNUNET_SYSERR ==
GNUNET_OS_process_wait_status (proc,
&type,
&code))
{
GNUNET_break (0);
GNUNET_OS_process_destroy (proc);
return GNUNET_SYSERR;
}
GNUNET_OS_process_destroy (proc);
if ( (type == GNUNET_OS_PROCESS_EXITED) &&
(0 != code) )
{
fprintf (stderr,
"Failed to setup (auditor) database\n");
return GNUNET_NO;
}
if ( (type != GNUNET_OS_PROCESS_EXITED) ||
(0 != code) )
{
fprintf (stderr,
"Unexpected error running"
" `taler-auditor-dbinit'!\n");
return GNUNET_SYSERR;
}
return GNUNET_OK;
}
/**
* Wait for the exchange to have started. Waits for at
* most 10s, after that returns 77 to indicate an error.
*
* @param base_url what URL should we expect the exchange
* to be running at
* @return 0 on success
*/
int
TALER_TESTING_AUDITOR_wait_auditor_ready (const char *base_url)
{
char *wget_cmd;
unsigned int iter;
GNUNET_asprintf (&wget_cmd,
"wget -q -t 1 -T 1 %sversion"
" -o /dev/null -O /dev/null",
base_url); // make sure ends with '/'
/* give child time to start and bind against the socket */
fprintf (stderr,
"Waiting for `taler-auditor-httpd' to be ready\n");
iter = 0;
do
{
if (10 == iter)
{
fprintf (stderr,
"Failed to launch `taler-auditor-httpd' (or `wget')\n");
GNUNET_free (wget_cmd);
return 77;
}
fprintf (stderr, ".\n");
sleep (1);
iter++;
}
while (0 != system (wget_cmd));
GNUNET_free (wget_cmd);
return 0;
}
/**
* Initialize scheduler loop and curl context for the testcase
* including starting and stopping the auditor and exchange using the
* given configuration file.
*
* @param main_cb routine containing all the commands to run.
* @param main_cb_cls closure for @a main_cb, typically NULL.
* @param config_file configuration file for the test-suite.
*
* @return #GNUNET_OK if all is okay, != #GNUNET_OK otherwise.
* non-#GNUNET_OK codes are #GNUNET_SYSERR most of the
* time.
*/
int
TALER_TESTING_AUDITOR_setup_with_auditor (TALER_TESTING_Main main_cb,
void *main_cb_cls,
const char *config_filename)
{
int result;
struct GNUNET_OS_Process *exchanged;
struct GNUNET_OS_Process *auditord;
struct GNUNET_CONFIGURATION_Handle *cfg;
unsigned long long port;
char *serve;
char *base_url;
cfg = GNUNET_CONFIGURATION_create ();
if (GNUNET_OK !=
GNUNET_CONFIGURATION_load (cfg,
config_filename))
return GNUNET_NO;
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_string (cfg,
"exchange",
"SERVE",
&serve))
{
GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
"exchange",
"SERVE");
GNUNET_CONFIGURATION_destroy (cfg);
return GNUNET_NO;
}
if (0 == strcmp ("tcp", serve))
{
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_number (cfg,
"exchange",
"PORT",
&port))
{
GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
"exchange",
"PORT");
GNUNET_CONFIGURATION_destroy (cfg);
GNUNET_free (serve);
return GNUNET_NO;
}
if (GNUNET_OK !=
GNUNET_NETWORK_test_port_free (IPPROTO_TCP,
(uint16_t) port))
{
fprintf (stderr,
"Required port %llu not available, skipping.\n",
port);
GNUNET_free (serve);
return GNUNET_NO;
}
}
GNUNET_free (serve);
exchanged = GNUNET_OS_start_process (GNUNET_NO,
GNUNET_OS_INHERIT_STD_ALL,
NULL, NULL, NULL,
"taler-exchange-httpd",
"taler-exchange-httpd",
"-c", config_filename,
"-i",
NULL);
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_string (cfg,
"exchange",
"BASE_URL",
&base_url))
{
GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
"exchange",
"BASE_URL");
GNUNET_CONFIGURATION_destroy (cfg);
return GNUNET_NO;
}
GNUNET_CONFIGURATION_destroy (cfg);
if (0 != TALER_TESTING_wait_exchange_ready (base_url))
{
GNUNET_free (base_url);
return 77;
}
GNUNET_free (base_url);
/* NOTE: this blocks. */
result = TALER_TESTING_setup (main_cb,
main_cb_cls,
config_filename,
exchanged,
GNUNET_YES);
GNUNET_break (0 ==
GNUNET_OS_process_kill (exchanged,
SIGTERM));
GNUNET_break (GNUNET_OK ==
GNUNET_OS_process_wait (exchanged));
GNUNET_OS_process_destroy (exchanged);
return result;
}
/* end of testing_auditor_api_helpers.c */

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/*
This file is part of TALER
(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 include/taler_testing_auditor_lib.h
* @brief API for writing an interpreter to test Taler components
* @author Christian Grothoff <christian@grothoff.org>
* @author Marcello Stanisci
*/
#ifndef TALER_TESTING_AUDITOR_LIB_H
#define TALER_TESTING_AUDITOR_LIB_H
#include "taler_util.h"
#include "taler_exchange_service.h"
#include <gnunet/gnunet_json_lib.h>
#include "taler_json_lib.h"
#include <microhttpd.h>
/* ********************* Helper functions ********************* */
/**
* Prepare launching an auditor and exchange. Checks that the configured
* port is available, runs taler-exchange-keyup, taler-auditor-exchange,
* taler-auditor-sign and taler-exchange-dbinit. Does not
* launch the exchange process itself.
*
* @param config_filename configuration file to use
* @param auditor_base_url[out] will be set to the auditor base url,
* if the config has any; otherwise it will be set to
* NULL.
* @param exchange_base_url[out] will be set to the exchange base url,
* if the config has any; otherwise it will be set to
* NULL.
* @return #GNUNET_OK on success, #GNUNET_NO if test should be
* skipped, #GNUNET_SYSERR on test failure
*/
int
TALER_TESTING_AUDITOR_prepare_auditor (const char *config_filename,
char **auditor_base_url,
char **exchange_base_url);
/**
* Wait for the auditor to have started. Waits for at
* most 10s, after that returns 77 to indicate an error.
*
* @param base_url what URL should we expect the exchange
* to be running at
* @return 0 on success
*/
int
TALER_TESTING_AUDITOR_wait_auditor_ready (const char *base_url);
/**
* Remove files from previous runs
*/
void
TALER_TESTING_AUDITOR_cleanup_files (const char *config_name);
/**
* Initialize scheduler loop and curl context for the testcase
* including starting and stopping the auditor and exchange using the
* given configuration file.
*
* @param main_cb routine containing all the commands to run.
* @param main_cb_cls closure for @a main_cb, typically NULL.
* @param config_file configuration file for the test-suite.
*
* @return #GNUNET_OK if all is okay, != #GNUNET_OK otherwise.
* non-#GNUNET_OK codes are #GNUNET_SYSERR most of the
* time.
*/
int
TALER_TESTING_AUDITOR_setup_with_auditor (TALER_TESTING_Main main_cb,
void *main_cb_cls,
const char *config_filename);
#endif