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 #include "errno-list.h"
  26 #include "bus-common-errors.h"
  27
  28 static void test_error(void) {
  29         _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL, second = SD_BUS_ERROR_NULL;
  30         const sd_bus_error const_error = SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_FILE_EXISTS, "const error");
  31         const sd_bus_error temporarily_const_error = {
  32                 .name = SD_BUS_ERROR_ACCESS_DENIED,
  33                 .message = "oh! no",
  34                 ._need_free = -1
  35         };
  36
  37         assert_se(!sd_bus_error_is_set(&error));
  38         assert_se(sd_bus_error_set(&error, SD_BUS_ERROR_NOT_SUPPORTED, "xxx") == -ENOTSUP);
  39         assert_se(streq(error.name, SD_BUS_ERROR_NOT_SUPPORTED));
  40         assert_se(streq(error.message, "xxx"));
  41         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_NOT_SUPPORTED));
  42         assert_se(sd_bus_error_get_errno(&error) == ENOTSUP);
  43         assert_se(sd_bus_error_is_set(&error));
  44         sd_bus_error_free(&error);
  45
  46         assert_se(!sd_bus_error_is_set(&error));
  47         assert_se(sd_bus_error_setf(&error, SD_BUS_ERROR_FILE_NOT_FOUND, "yyy %i", -1) == -ENOENT);
  48         assert_se(streq(error.name, SD_BUS_ERROR_FILE_NOT_FOUND));
  49         assert_se(streq(error.message, "yyy -1"));
  50         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_FILE_NOT_FOUND));
  51         assert_se(sd_bus_error_get_errno(&error) == ENOENT);
  52         assert_se(sd_bus_error_is_set(&error));
  53
  54         assert_se(!sd_bus_error_is_set(&second));
  55         assert_se(second._need_free == 0);
  56         assert_se(error._need_free > 0);
  57         assert_se(sd_bus_error_copy(&second, &error) == -ENOENT);
  58         assert_se(second._need_free > 0);
  59         assert_se(streq(error.name, second.name));
  60         assert_se(streq(error.message, second.message));
  61         assert_se(sd_bus_error_get_errno(&second) == ENOENT);
  62         assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_FILE_NOT_FOUND));
  63         assert_se(sd_bus_error_is_set(&second));
  64
  65         sd_bus_error_free(&error);
  66         sd_bus_error_free(&second);
  67
  68         assert_se(!sd_bus_error_is_set(&second));
  69         assert_se(const_error._need_free == 0);
  70         assert_se(sd_bus_error_copy(&second, &const_error) == -EEXIST);
  71         assert_se(second._need_free == 0);
  72         assert_se(streq(const_error.name, second.name));
  73         assert_se(streq(const_error.message, second.message));
  74         assert_se(sd_bus_error_get_errno(&second) == EEXIST);
  75         assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_FILE_EXISTS));
  76         assert_se(sd_bus_error_is_set(&second));
  77         sd_bus_error_free(&second);
  78
  79         assert_se(!sd_bus_error_is_set(&second));
  80         assert_se(temporarily_const_error._need_free < 0);
  81         assert_se(sd_bus_error_copy(&second, &temporarily_const_error) == -EACCES);
  82         assert_se(second._need_free > 0);
  83         assert_se(streq(temporarily_const_error.name, second.name));
  84         assert_se(streq(temporarily_const_error.message, second.message));
  85         assert_se(sd_bus_error_get_errno(&second) == EACCES);
  86         assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_ACCESS_DENIED));
  87         assert_se(sd_bus_error_is_set(&second));
  88
  89         assert_se(!sd_bus_error_is_set(&error));
  90         assert_se(sd_bus_error_set_const(&error, "System.Error.EUCLEAN", "Hallo") == -EUCLEAN);
  91         assert_se(streq(error.name, "System.Error.EUCLEAN"));
  92         assert_se(streq(error.message, "Hallo"));
  93         assert_se(sd_bus_error_has_name(&error, "System.Error.EUCLEAN"));
  94         assert_se(sd_bus_error_get_errno(&error) == EUCLEAN);
  95         assert_se(sd_bus_error_is_set(&error));
  96         sd_bus_error_free(&error);
  97
  98         assert_se(!sd_bus_error_is_set(&error));
  99         assert_se(sd_bus_error_set_errno(&error, EBUSY) == -EBUSY);
 100         assert_se(streq(error.name, "System.Error.EBUSY"));
 101         assert_se(streq(error.message, strerror(EBUSY)));
 102         assert_se(sd_bus_error_has_name(&error, "System.Error.EBUSY"));
 103         assert_se(sd_bus_error_get_errno(&error) == EBUSY);
 104         assert_se(sd_bus_error_is_set(&error));
 105         sd_bus_error_free(&error);
 106
 107         assert_se(!sd_bus_error_is_set(&error));
 108         assert_se(sd_bus_error_set_errnof(&error, EIO, "Waldi %c", 'X') == -EIO);
 109         assert_se(streq(error.name, SD_BUS_ERROR_IO_ERROR));
 110         assert_se(streq(error.message, "Waldi X"));
 111         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_IO_ERROR));
 112         assert_se(sd_bus_error_get_errno(&error) == EIO);
 113         assert_se(sd_bus_error_is_set(&error));
 114 }
 115
 116 extern const sd_bus_error_map __start_BUS_ERROR_MAP[];
 117 extern const sd_bus_error_map __stop_BUS_ERROR_MAP[];
 118
 119 static void dump_mapping_table(void) {
 120         const sd_bus_error_map *m;
 121
 122         printf("----- errno mappings ------\n");
 123         m = __start_BUS_ERROR_MAP;
 124         while (m < __stop_BUS_ERROR_MAP) {
 125
 126                 if (m->code == BUS_ERROR_MAP_END_MARKER) {
 127                         m = ALIGN8_PTR(m+1);
 128                         continue;
 129                 }
 130
 131                 printf("%s -> %i/%s\n", strna(m->name), m->code, strna(errno_to_name(m->code)));
 132                 m ++;
 133         }
 134         printf("---------------------------\n");
 135 }
 136
 137 static void test_errno_mapping_standard(void) {
 138         assert_se(sd_bus_error_set(NULL, "System.Error.EUCLEAN", NULL) == -EUCLEAN);
 139         assert_se(sd_bus_error_set(NULL, "System.Error.EBUSY", NULL) == -EBUSY);
 140         assert_se(sd_bus_error_set(NULL, "System.Error.EINVAL", NULL) == -EINVAL);
 141         assert_se(sd_bus_error_set(NULL, "System.Error.WHATSIT", NULL) == -EIO);
 142 }
 143
 144 BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map test_errors[] = {
 145         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error", 5),
 146         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-2", 52),
 147         SD_BUS_ERROR_MAP_END
 148 };
 149
 150 BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map test_errors2[] = {
 151         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-3", 33),
 152         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-4", 44),
 153         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-33", 333),
 154         SD_BUS_ERROR_MAP_END
 155 };
 156
 157 static const sd_bus_error_map test_errors3[] = {
 158         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-88", 888),
 159         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-99", 999),
 160         SD_BUS_ERROR_MAP_END
 161 };
 162
 163 static const sd_bus_error_map test_errors4[] = {
 164         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-77", 777),
 165         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-78", 778),
 166         SD_BUS_ERROR_MAP_END
 167 };
 168
 169 static void test_errno_mapping_custom(void) {
 170         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error", NULL) == -5);
 171         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-2", NULL) == -52);
 172         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-x", NULL) == -EIO);
 173         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-33", NULL) == -333);
 174
 175         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-88", NULL) == -EIO);
 176         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-99", NULL) == -EIO);
 177         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-77", NULL) == -EIO);
 178
 179         assert_se(sd_bus_error_add_map(test_errors3) > 0);
 180         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-88", NULL) == -888);
 181         assert_se(sd_bus_error_add_map(test_errors4) > 0);
 182         assert_se(sd_bus_error_add_map(test_errors4) == 0);
 183         assert_se(sd_bus_error_add_map(test_errors3) == 0);
 184
 185         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-99", NULL) == -999);
 186         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-77", NULL) == -777);
 187         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-78", NULL) == -778);
 188         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-2", NULL) == -52);
 189         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-y", NULL) == -EIO);
 190
 191         assert_se(sd_bus_error_set(NULL, BUS_ERROR_NO_SUCH_UNIT, NULL) == -ENOENT);
 192 }
 193
 194 int main(int argc, char *argv[]) {
 195         dump_mapping_table();
 196
 197         test_error();
 198         test_errno_mapping_standard();
 199         test_errno_mapping_custom();
 200
 201         return 0;
 202 }