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