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

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   Copyright 2013 Lennart Poettering
   4 ***/
   5
   6 #include "sd-bus.h"
   7
   8 #include "bus-common-errors.h"
   9 #include "bus-error.h"
  10 #include "bus-util.h"
  11 #include "errno-list.h"
  12
  13 static void test_error(void) {
  14         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL, second = SD_BUS_ERROR_NULL;
  15         const sd_bus_error const_error = SD_BUS_ERROR_MAKE_CONST(SD_BUS_ERROR_FILE_EXISTS, "const error");
  16         const sd_bus_error temporarily_const_error = {
  17                 .name = SD_BUS_ERROR_ACCESS_DENIED,
  18                 .message = "oh! no",
  19                 ._need_free = -1
  20         };
  21
  22         assert_se(!sd_bus_error_is_set(&error));
  23         assert_se(sd_bus_error_set(&error, SD_BUS_ERROR_NOT_SUPPORTED, "xxx") == -EOPNOTSUPP);
  24         assert_se(streq(error.name, SD_BUS_ERROR_NOT_SUPPORTED));
  25         assert_se(streq(error.message, "xxx"));
  26         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_NOT_SUPPORTED));
  27         assert_se(sd_bus_error_get_errno(&error) == EOPNOTSUPP);
  28         assert_se(sd_bus_error_is_set(&error));
  29         sd_bus_error_free(&error);
  30
  31         /* Check with no error */
  32         assert_se(!sd_bus_error_is_set(&error));
  33         assert_se(sd_bus_error_setf(&error, NULL, "yyy %i", -1) == 0);
  34         assert_se(error.name == NULL);
  35         assert_se(error.message == NULL);
  36         assert_se(!sd_bus_error_has_name(&error, SD_BUS_ERROR_FILE_NOT_FOUND));
  37         assert_se(sd_bus_error_get_errno(&error) == 0);
  38         assert_se(!sd_bus_error_is_set(&error));
  39
  40         assert_se(sd_bus_error_setf(&error, SD_BUS_ERROR_FILE_NOT_FOUND, "yyy %i", -1) == -ENOENT);
  41         assert_se(streq(error.name, SD_BUS_ERROR_FILE_NOT_FOUND));
  42         assert_se(streq(error.message, "yyy -1"));
  43         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_FILE_NOT_FOUND));
  44         assert_se(sd_bus_error_get_errno(&error) == ENOENT);
  45         assert_se(sd_bus_error_is_set(&error));
  46
  47         assert_se(!sd_bus_error_is_set(&second));
  48         assert_se(second._need_free == 0);
  49         assert_se(error._need_free > 0);
  50         assert_se(sd_bus_error_copy(&second, &error) == -ENOENT);
  51         assert_se(second._need_free > 0);
  52         assert_se(streq(error.name, second.name));
  53         assert_se(streq(error.message, second.message));
  54         assert_se(sd_bus_error_get_errno(&second) == ENOENT);
  55         assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_FILE_NOT_FOUND));
  56         assert_se(sd_bus_error_is_set(&second));
  57
  58         sd_bus_error_free(&error);
  59         sd_bus_error_free(&second);
  60
  61         assert_se(!sd_bus_error_is_set(&second));
  62         assert_se(const_error._need_free == 0);
  63         assert_se(sd_bus_error_copy(&second, &const_error) == -EEXIST);
  64         assert_se(second._need_free == 0);
  65         assert_se(streq(const_error.name, second.name));
  66         assert_se(streq(const_error.message, second.message));
  67         assert_se(sd_bus_error_get_errno(&second) == EEXIST);
  68         assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_FILE_EXISTS));
  69         assert_se(sd_bus_error_is_set(&second));
  70         sd_bus_error_free(&second);
  71
  72         assert_se(!sd_bus_error_is_set(&second));
  73         assert_se(temporarily_const_error._need_free < 0);
  74         assert_se(sd_bus_error_copy(&second, &temporarily_const_error) == -EACCES);
  75         assert_se(second._need_free > 0);
  76         assert_se(streq(temporarily_const_error.name, second.name));
  77         assert_se(streq(temporarily_const_error.message, second.message));
  78         assert_se(sd_bus_error_get_errno(&second) == EACCES);
  79         assert_se(sd_bus_error_has_name(&second, SD_BUS_ERROR_ACCESS_DENIED));
  80         assert_se(sd_bus_error_is_set(&second));
  81
  82         assert_se(!sd_bus_error_is_set(&error));
  83         assert_se(sd_bus_error_set_const(&error, "System.Error.EUCLEAN", "Hallo") == -EUCLEAN);
  84         assert_se(streq(error.name, "System.Error.EUCLEAN"));
  85         assert_se(streq(error.message, "Hallo"));
  86         assert_se(sd_bus_error_has_name(&error, "System.Error.EUCLEAN"));
  87         assert_se(sd_bus_error_get_errno(&error) == EUCLEAN);
  88         assert_se(sd_bus_error_is_set(&error));
  89         sd_bus_error_free(&error);
  90
  91         assert_se(!sd_bus_error_is_set(&error));
  92         assert_se(sd_bus_error_set_errno(&error, EBUSY) == -EBUSY);
  93         assert_se(streq(error.name, "System.Error.EBUSY"));
  94         assert_se(streq(error.message, strerror(EBUSY)));
  95         assert_se(sd_bus_error_has_name(&error, "System.Error.EBUSY"));
  96         assert_se(sd_bus_error_get_errno(&error) == EBUSY);
  97         assert_se(sd_bus_error_is_set(&error));
  98         sd_bus_error_free(&error);
  99
 100         assert_se(!sd_bus_error_is_set(&error));
 101         assert_se(sd_bus_error_set_errnof(&error, EIO, "Waldi %c", 'X') == -EIO);
 102         assert_se(streq(error.name, SD_BUS_ERROR_IO_ERROR));
 103         assert_se(streq(error.message, "Waldi X"));
 104         assert_se(sd_bus_error_has_name(&error, SD_BUS_ERROR_IO_ERROR));
 105         assert_se(sd_bus_error_get_errno(&error) == EIO);
 106         assert_se(sd_bus_error_is_set(&error));
 107         sd_bus_error_free(&error);
 108
 109         /* Check with no error */
 110         assert_se(!sd_bus_error_is_set(&error));
 111         assert_se(sd_bus_error_set_errnof(&error, 0, "Waldi %c", 'X') == 0);
 112         assert_se(error.name == NULL);
 113         assert_se(error.message == NULL);
 114         assert_se(!sd_bus_error_has_name(&error, SD_BUS_ERROR_IO_ERROR));
 115         assert_se(sd_bus_error_get_errno(&error) == 0);
 116         assert_se(!sd_bus_error_is_set(&error));
 117 }
 118
 119 extern const sd_bus_error_map __start_BUS_ERROR_MAP[];
 120 extern const sd_bus_error_map __stop_BUS_ERROR_MAP[];
 121
 122 static void dump_mapping_table(void) {
 123         const sd_bus_error_map *m;
 124
 125         printf("----- errno mappings ------\n");
 126         m = __start_BUS_ERROR_MAP;
 127         while (m < __stop_BUS_ERROR_MAP) {
 128
 129                 if (m->code == BUS_ERROR_MAP_END_MARKER) {
 130                         m = ALIGN8_PTR(m+1);
 131                         continue;
 132                 }
 133
 134                 printf("%s -> %i/%s\n", strna(m->name), m->code, strna(errno_to_name(m->code)));
 135                 m++;
 136         }
 137         printf("---------------------------\n");
 138 }
 139
 140 static void test_errno_mapping_standard(void) {
 141         assert_se(sd_bus_error_set(NULL, "System.Error.EUCLEAN", NULL) == -EUCLEAN);
 142         assert_se(sd_bus_error_set(NULL, "System.Error.EBUSY", NULL) == -EBUSY);
 143         assert_se(sd_bus_error_set(NULL, "System.Error.EINVAL", NULL) == -EINVAL);
 144         assert_se(sd_bus_error_set(NULL, "System.Error.WHATSIT", NULL) == -EIO);
 145 }
 146
 147 BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map test_errors[] = {
 148         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error", 5),
 149         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-2", 52),
 150         SD_BUS_ERROR_MAP_END
 151 };
 152
 153 BUS_ERROR_MAP_ELF_REGISTER const sd_bus_error_map test_errors2[] = {
 154         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-3", 33),
 155         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-4", 44),
 156         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-33", 333),
 157         SD_BUS_ERROR_MAP_END
 158 };
 159
 160 static const sd_bus_error_map test_errors3[] = {
 161         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-88", 888),
 162         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-99", 999),
 163         SD_BUS_ERROR_MAP_END
 164 };
 165
 166 static const sd_bus_error_map test_errors4[] = {
 167         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-77", 777),
 168         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-78", 778),
 169         SD_BUS_ERROR_MAP_END
 170 };
 171
 172 static const sd_bus_error_map test_errors_bad1[] = {
 173         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-1", 0),
 174         SD_BUS_ERROR_MAP_END
 175 };
 176
 177 static const sd_bus_error_map test_errors_bad2[] = {
 178         SD_BUS_ERROR_MAP("org.freedesktop.custom-dbus-error-1", -1),
 179         SD_BUS_ERROR_MAP_END
 180 };
 181
 182 static void test_errno_mapping_custom(void) {
 183         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error", NULL) == -5);
 184         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-2", NULL) == -52);
 185         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-x", NULL) == -EIO);
 186         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-33", NULL) == -333);
 187
 188         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-88", NULL) == -EIO);
 189         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-99", NULL) == -EIO);
 190         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-77", NULL) == -EIO);
 191
 192         assert_se(sd_bus_error_add_map(test_errors3) > 0);
 193         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-88", NULL) == -888);
 194         assert_se(sd_bus_error_add_map(test_errors4) > 0);
 195         assert_se(sd_bus_error_add_map(test_errors4) == 0);
 196         assert_se(sd_bus_error_add_map(test_errors3) == 0);
 197
 198         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-99", NULL) == -999);
 199         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-77", NULL) == -777);
 200         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-78", NULL) == -778);
 201         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-2", NULL) == -52);
 202         assert_se(sd_bus_error_set(NULL, "org.freedesktop.custom-dbus-error-y", NULL) == -EIO);
 203
 204 #if 0 /// UNNEEDED by elogind
 205         assert_se(sd_bus_error_set(NULL, BUS_ERROR_NO_SUCH_UNIT, NULL) == -ENOENT);
 206 #endif // 0
 207
 208         assert_se(sd_bus_error_add_map(test_errors_bad1) == -EINVAL);
 209         assert_se(sd_bus_error_add_map(test_errors_bad2) == -EINVAL);
 210 }
 211
 212 int main(int argc, char *argv[]) {
 213         dump_mapping_table();
 214
 215         test_error();
 216         test_errno_mapping_standard();
 217         test_errno_mapping_custom();
 218
 219         return 0;
 220 }