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Base system with REST service to issue digital coins, run by the payment service provider
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test_conversion.c (3523B)

      1 /*
      2   This file is part of TALER
      3   (C) 2023 Taler Systems SA
      4 
      5   TALER is free software; you can redistribute it and/or modify it under the
      6   terms of the GNU General Public License as published by the Free Software
      7   Foundation; either version 3, or (at your option) any later version.
      8 
      9   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
     10   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
     11   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
     12 
     13   You should have received a copy of the GNU General Public License along with
     14   TALER; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
     15 */
     16 /**
     17  * @file util/test_conversion.c
     18  * @brief Tests for conversion logic
     19  * @author Christian Grothoff
     20  */
     21 #include "taler/taler_util.h"
     22 #include <gnunet/gnunet_json_lib.h>
     23 #include "taler/taler_json_lib.h"
     24 
     25 /**
     26  * Return value from main().
     27  */
     28 static int global_ret;
     29 
     30 /**
     31  * Handle to our helper.
     32  */
     33 static struct TALER_JSON_ExternalConversion *ec;
     34 
     35 
     36 /**
     37  * Type of a callback that receives a JSON @a result.
     38  *
     39  * @param cls closure
     40  * @param status_type how did the process die
     41  * @apram code termination status code from the process
     42  * @param result some JSON result, NULL if we failed to get an JSON output
     43  */
     44 static void
     45 conv_cb (void *cls,
     46          enum GNUNET_OS_ProcessStatusType status_type,
     47          unsigned long code,
     48          const json_t *result)
     49 {
     50   json_t *expect;
     51 
     52   (void) cls;
     53   (void) status_type;
     54   ec = NULL;
     55   global_ret = 3;
     56   if (42 != code)
     57   {
     58     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
     59                 "Unexpected return value from helper: %u\n",
     60                 (unsigned int) code);
     61     return;
     62   }
     63   expect = GNUNET_JSON_PACK (
     64     GNUNET_JSON_pack_string ("foo",
     65                              "arg")
     66     );
     67   GNUNET_assert (NULL != expect);
     68   if (1 == json_equal (expect,
     69                        result))
     70   {
     71     global_ret = 0;
     72   }
     73   else
     74   {
     75     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
     76                 "Unexpected JSON result\n");
     77     json_dumpf (result,
     78                 stderr,
     79                 JSON_INDENT (2));
     80     global_ret = 4;
     81   }
     82   json_decref (expect);
     83 }
     84 
     85 
     86 /**
     87  * Function called on shutdown/CTRL-C.
     88  *
     89  * @param cls NULL
     90  */
     91 static void
     92 do_shutdown (void *cls)
     93 {
     94   (void) cls;
     95   if (NULL != ec)
     96   {
     97     GNUNET_break (0);
     98     global_ret = 2;
     99     TALER_JSON_external_conversion_stop (ec);
    100     ec = NULL;
    101   }
    102 }
    103 
    104 
    105 /**
    106  * Main test function.
    107  *
    108  * @param cls NULL
    109  */
    110 static void
    111 run (void *cls)
    112 {
    113   json_t *input;
    114   const char *argv[] = {
    115     "test_conversion.sh",
    116     "arg",
    117     NULL
    118   };
    119 
    120   (void) cls;
    121   GNUNET_SCHEDULER_add_shutdown (&do_shutdown,
    122                                  NULL);
    123   input = GNUNET_JSON_PACK (
    124     GNUNET_JSON_pack_string ("key",
    125                              "foo")
    126     );
    127   GNUNET_assert (NULL != input);
    128   ec = TALER_JSON_external_conversion_start (input,
    129                                              &conv_cb,
    130                                              NULL,
    131                                              "./test_conversion.sh",
    132                                              argv);
    133   json_decref (input);
    134   GNUNET_assert (NULL != ec);
    135 }
    136 
    137 
    138 int
    139 main (int argc,
    140       const char *const argv[])
    141 {
    142   (void) argc;
    143   (void) argv;
    144   unsetenv ("XDG_DATA_HOME");
    145   unsetenv ("XDG_CONFIG_HOME");
    146   GNUNET_log_setup ("test-conversion",
    147                     "INFO",
    148                     NULL);
    149   global_ret = 1;
    150   GNUNET_SCHEDULER_run (&run,
    151                         NULL);
    152   return global_ret;
    153 }