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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 (3551B)

      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/platform.h"
     22 #include "taler/taler_util.h"
     23 #include <gnunet/gnunet_json_lib.h>
     24 #include "taler/taler_json_lib.h"
     25 
     26 /**
     27  * Return value from main().
     28  */
     29 static int global_ret;
     30 
     31 /**
     32  * Handle to our helper.
     33  */
     34 static struct TALER_JSON_ExternalConversion *ec;
     35 
     36 
     37 /**
     38  * Type of a callback that receives a JSON @a result.
     39  *
     40  * @param cls closure
     41  * @param status_type how did the process die
     42  * @apram code termination status code from the process
     43  * @param result some JSON result, NULL if we failed to get an JSON output
     44  */
     45 static void
     46 conv_cb (void *cls,
     47          enum GNUNET_OS_ProcessStatusType status_type,
     48          unsigned long code,
     49          const json_t *result)
     50 {
     51   json_t *expect;
     52 
     53   (void) cls;
     54   (void) status_type;
     55   ec = NULL;
     56   global_ret = 3;
     57   if (42 != code)
     58   {
     59     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
     60                 "Unexpected return value from helper: %u\n",
     61                 (unsigned int) code);
     62     return;
     63   }
     64   expect = GNUNET_JSON_PACK (
     65     GNUNET_JSON_pack_string ("foo",
     66                              "arg")
     67     );
     68   GNUNET_assert (NULL != expect);
     69   if (1 == json_equal (expect,
     70                        result))
     71   {
     72     global_ret = 0;
     73   }
     74   else
     75   {
     76     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
     77                 "Unexpected JSON result\n");
     78     json_dumpf (result,
     79                 stderr,
     80                 JSON_INDENT (2));
     81     global_ret = 4;
     82   }
     83   json_decref (expect);
     84 }
     85 
     86 
     87 /**
     88  * Function called on shutdown/CTRL-C.
     89  *
     90  * @param cls NULL
     91  */
     92 static void
     93 do_shutdown (void *cls)
     94 {
     95   (void) cls;
     96   if (NULL != ec)
     97   {
     98     GNUNET_break (0);
     99     global_ret = 2;
    100     TALER_JSON_external_conversion_stop (ec);
    101     ec = NULL;
    102   }
    103 }
    104 
    105 
    106 /**
    107  * Main test function.
    108  *
    109  * @param cls NULL
    110  */
    111 static void
    112 run (void *cls)
    113 {
    114   json_t *input;
    115   const char *argv[] = {
    116     "test_conversion.sh",
    117     "arg",
    118     NULL
    119   };
    120 
    121   (void) cls;
    122   GNUNET_SCHEDULER_add_shutdown (&do_shutdown,
    123                                  NULL);
    124   input = GNUNET_JSON_PACK (
    125     GNUNET_JSON_pack_string ("key",
    126                              "foo")
    127     );
    128   GNUNET_assert (NULL != input);
    129   ec = TALER_JSON_external_conversion_start (input,
    130                                              &conv_cb,
    131                                              NULL,
    132                                              "./test_conversion.sh",
    133                                              argv);
    134   json_decref (input);
    135   GNUNET_assert (NULL != ec);
    136 }
    137 
    138 
    139 int
    140 main (int argc,
    141       const char *const argv[])
    142 {
    143   (void) argc;
    144   (void) argv;
    145   unsetenv ("XDG_DATA_HOME");
    146   unsetenv ("XDG_CONFIG_HOME");
    147   GNUNET_log_setup ("test-conversion",
    148                     "INFO",
    149                     NULL);
    150   global_ret = 1;
    151   GNUNET_SCHEDULER_run (&run,
    152                         NULL);
    153   return global_ret;
    154 }