src/libsystemd/sd-bus/test-bus-error.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2013 Lennart Poettering
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU Lesser General Public License as published by
  10   the Free Software Foundation; either version 2.1 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   Lesser General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include "sd-bus.h"
  23 #include "bus-error.h"
  24 #include "bus-util.h"
  25
  26 static void test_error(void) {
  27         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL, second = SD_BUS_ERROR_NULL;
  28         const sd_bus_error const_error = SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_FILE_EXISTS, "const error");
  29         const sd_bus_error temporarily_const_error = {
  30                 .name = SD_BUS_ERROR_ACCESS_DENIED,
  31                 .message = "oh! no",
  32                 ._need_free = -1
  33         };
  34
  35         assert_se(!sd_bus_error_is_set(&error));
  36         assert_se(sd_bus_error_set(&error, SD_BUS_ERROR_NOT_SUPPORTED, "xxx") == -ENOTSUP);
  37         assert_se(streq(error.name, SD_BUS_ERROR_NOT_SUPPORTED));
  38         assert_se(streq(error.message, "xxx"));
  39         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_NOT_SUPPORTED));
  40         assert_se(sd_bus_error_get_errno(&error) == ENOTSUP);
  41         assert_se(sd_bus_error_is_set(&error));
  42         sd_bus_error_free(&error);
  43
  44         assert_se(!sd_bus_error_is_set(&error));
  45         assert_se(sd_bus_error_setf(&error, SD_BUS_ERROR_FILE_NOT_FOUND, "yyy %i", -1) == -ENOENT);
  46         assert_se(streq(error.name, SD_BUS_ERROR_FILE_NOT_FOUND));
  47         assert_se(streq(error.message, "yyy -1"));
  48         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_FILE_NOT_FOUND));
  49         assert_se(sd_bus_error_get_errno(&error) == ENOENT);
  50         assert_se(sd_bus_error_is_set(&error));
  51
  52         assert_se(!sd_bus_error_is_set(&second));
  53         assert_se(second._need_free == 0);
  54         assert_se(error._need_free > 0);
  55         assert_se(sd_bus_error_copy(&second, &error) == -ENOENT);
  56         assert_se(second._need_free > 0);
  57         assert_se(streq(error.name, second.name));
  58         assert_se(streq(error.message, second.message));
  59         assert_se(sd_bus_error_get_errno(&second) == ENOENT);
  60         assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_FILE_NOT_FOUND));
  61         assert_se(sd_bus_error_is_set(&second));
  62
  63         sd_bus_error_free(&error);
  64         sd_bus_error_free(&second);
  65
  66         assert_se(!sd_bus_error_is_set(&second));
  67         assert_se(const_error._need_free == 0);
  68         assert_se(sd_bus_error_copy(&second, &const_error) == -EEXIST);
  69         assert_se(second._need_free == 0);
  70         assert_se(streq(const_error.name, second.name));
  71         assert_se(streq(const_error.message, second.message));
  72         assert_se(sd_bus_error_get_errno(&second) == EEXIST);
  73         assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_FILE_EXISTS));
  74         assert_se(sd_bus_error_is_set(&second));
  75         sd_bus_error_free(&second);
  76
  77         assert_se(!sd_bus_error_is_set(&second));
  78         assert_se(temporarily_const_error._need_free < 0);
  79         assert_se(sd_bus_error_copy(&second, &temporarily_const_error) == -EACCES);
  80         assert_se(second._need_free > 0);
  81         assert_se(streq(temporarily_const_error.name, second.name));
  82         assert_se(streq(temporarily_const_error.message, second.message));
  83         assert_se(sd_bus_error_get_errno(&second) == EACCES);
  84         assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_ACCESS_DENIED));
  85         assert_se(sd_bus_error_is_set(&second));
  86
  87         assert_se(!sd_bus_error_is_set(&error));
  88         assert_se(sd_bus_error_set_const(&error, "System.Error.EUCLEAN", "Hallo") == -EUCLEAN);
  89         assert_se(streq(error.name, "System.Error.EUCLEAN"));
  90         assert_se(streq(error.message, "Hallo"));
  91         assert_se(sd_bus_error_has_name(&error, "System.Error.EUCLEAN"));
  92         assert_se(sd_bus_error_get_errno(&error) == EUCLEAN);
  93         assert_se(sd_bus_error_is_set(&error));
  94         sd_bus_error_free(&error);
  95
  96         assert_se(!sd_bus_error_is_set(&error));
  97         assert_se(sd_bus_error_set_errno(&error, EBUSY) == -EBUSY);
  98         assert_se(streq(error.name, "System.Error.EBUSY"));
  99         assert_se(streq(error.message, strerror(EBUSY)));
 100         assert_se(sd_bus_error_has_name(&error, "System.Error.EBUSY"));
 101         assert_se(sd_bus_error_get_errno(&error) == EBUSY);
 102         assert_se(sd_bus_error_is_set(&error));
 103         sd_bus_error_free(&error);
 104
 105         assert_se(!sd_bus_error_is_set(&error));
 106         assert_se(sd_bus_error_set_errnof(&error, EIO, "Waldi %c", 'X') == -EIO);
 107         assert_se(streq(error.name, SD_BUS_ERROR_IO_ERROR));
 108         assert_se(streq(error.message, "Waldi X"));
 109         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_IO_ERROR));
 110         assert_se(sd_bus_error_get_errno(&error) == EIO);
 111         assert_se(sd_bus_error_is_set(&error));
 112 }
 113
 114 extern const sd_bus_name_error_mapping __start_sd_bus_errnomap[];
 115 extern const sd_bus_name_error_mapping __stop_sd_bus_errnomap[];
 116
 117 static void dump_mapping_table(void) {
 118         const sd_bus_name_error_mapping *m;
 119
 120         printf("----- errno mappings ------\n");
 121         for (m = __start_sd_bus_errnomap; m < __stop_sd_bus_errnomap; m++)
 122                 printf("%s -> %d\n", m->name, m->code);
 123         printf("---------------------------\n");
 124 }
 125
 126 static void test_errno_mapping_standard(void) {
 127         assert_se(sd_bus_error_set(NULL, "System.Error.EUCLEAN", NULL) == -EUCLEAN);
 128         assert_se(sd_bus_error_set(NULL, "System.Error.EBUSY", NULL) == -EBUSY);
 129         assert_se(sd_bus_error_set(NULL, "System.Error.EINVAL", NULL) == -EINVAL);
 130         assert_se(sd_bus_error_set(NULL, "System.Error.WHATSIT", NULL) == -EIO);
 131 }
 132
 133 SD_BUS_ERROR_MAPPING = {
 134         {"org.freedesktop.custom-dbus-error", 5},
 135         {"org.freedesktop.custom-dbus-error-2", 52},
 136 };
 137
 138 static void test_errno_mapping_custom(void) {
 139         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error", NULL) == -5);
 140         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-2", NULL) == -52);
 141         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-x", NULL) == -EIO);
 142 }
 143
 144 int main(int argc, char *argv[]) {
 145         dump_mapping_table();
 146
 147         test_error();
 148         test_errno_mapping_standard();
 149         test_errno_mapping_custom();
 150
 151         return 0;
 152 }