LCOV - code coverage report
Current view: top level - gio/tests - unix-mounts.c (source / functions) Coverage Total Hit
Test: unnamed Lines: 90.4 % 125 113
Test Date: 2026-02-10 05:15:13 Functions: 100.0 % 7 7
Branches: - 0 0

             Branch data     Line data    Source code
       1                 :             : /* GLib testing framework examples and tests
       2                 :             :  *
       3                 :             :  * Copyright © 2017 Endless Mobile, Inc.
       4                 :             :  *
       5                 :             :  * SPDX-License-Identifier: LGPL-2.1-or-later
       6                 :             :  *
       7                 :             :  * This library is free software; you can redistribute it and/or
       8                 :             :  * modify it under the terms of the GNU Lesser General Public
       9                 :             :  * License as published by the Free Software Foundation; either
      10                 :             :  * version 2.1 of the License, or (at your option) any later version.
      11                 :             :  *
      12                 :             :  * This library is distributed in the hope that it will be useful,
      13                 :             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      14                 :             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15                 :             :  * Lesser General Public License for more details.
      16                 :             :  *
      17                 :             :  * You should have received a copy of the GNU Lesser General
      18                 :             :  * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
      19                 :             :  */
      20                 :             : 
      21                 :             : #include "config.h"
      22                 :             : 
      23                 :             : #include <glib.h>
      24                 :             : 
      25                 :             : #ifndef G_OS_UNIX
      26                 :             : #error This is a Unix-specific test
      27                 :             : #endif
      28                 :             : 
      29                 :             : #include <errno.h>
      30                 :             : #include <locale.h>
      31                 :             : 
      32                 :             : #ifdef HAVE_XLOCALE_H
      33                 :             : /* Needed on macOS and FreeBSD for uselocale() */
      34                 :             : #include <xlocale.h>
      35                 :             : #endif
      36                 :             : 
      37                 :             : #include <glib/gstdio.h>
      38                 :             : #include <gio/gio.h>
      39                 :             : #include <gio/gunixmounts.h>
      40                 :             : 
      41                 :             : #include "../gunixmounts-private.h"
      42                 :             : 
      43                 :             : /* We test all of the old g_unix_mount_*() API before it was renamed to
      44                 :             :  * g_unix_mount_entry_*(). The old API calls the new API, so both methods get
      45                 :             :  * tested at once. */
      46                 :             : G_GNUC_BEGIN_IGNORE_DEPRECATIONS
      47                 :             : 
      48                 :             : static void
      49                 :           1 : test_is_system_fs_type (void)
      50                 :             : {
      51                 :           1 :   g_assert_true (g_unix_is_system_fs_type ("tmpfs"));
      52                 :           1 :   g_assert_false (g_unix_is_system_fs_type ("ext4"));
      53                 :             : 
      54                 :             :   /* Check that some common network file systems aren’t considered ‘system’. */
      55                 :           1 :   g_assert_false (g_unix_is_system_fs_type ("cifs"));
      56                 :           1 :   g_assert_false (g_unix_is_system_fs_type ("nfs"));
      57                 :           1 :   g_assert_false (g_unix_is_system_fs_type ("nfs4"));
      58                 :           1 :   g_assert_false (g_unix_is_system_fs_type ("smbfs"));
      59                 :           1 : }
      60                 :             : 
      61                 :             : static void
      62                 :           1 : test_is_system_device_path (void)
      63                 :             : {
      64                 :           1 :   g_assert_true (g_unix_is_system_device_path ("devpts"));
      65                 :           1 :   g_assert_false (g_unix_is_system_device_path ("/"));
      66                 :           1 : }
      67                 :             : 
      68                 :             : static void
      69                 :           1 : test_system_mount_paths_sorted (void)
      70                 :             : {
      71                 :             :   size_t i;
      72                 :           1 :   size_t n_paths = G_N_ELEMENTS (system_mount_paths);
      73                 :             : 
      74                 :           1 :   g_test_summary ("Verify that system_mount_paths array is sorted for bsearch");
      75                 :             : 
      76                 :          40 :   for (i = 1; i < n_paths; i++)
      77                 :             :     {
      78                 :          39 :       int cmp = strcmp (system_mount_paths[i - 1], system_mount_paths[i]);
      79                 :          39 :       if (cmp > 0)
      80                 :             :         {
      81                 :           0 :           g_test_fail_printf ("system_mount_paths array is not sorted: "
      82                 :             :                                "\"%s\" should come before \"%s\"",
      83                 :           0 :                                system_mount_paths[i - 1],
      84                 :             :                                system_mount_paths[i]);
      85                 :           0 :           return;
      86                 :             :         }
      87                 :             :     }
      88                 :             : }
      89                 :             : 
      90                 :             : static void
      91                 :           8 : assert_cmp_icon (GIcon    *icon,
      92                 :             :                  gboolean  expected_icon)
      93                 :             : {
      94                 :           8 :   if (expected_icon)
      95                 :             :     {
      96                 :           8 :       char *icon_str = NULL;
      97                 :             : 
      98                 :             :       /* While it would be nice to compare the icon value, that would make these
      99                 :             :        * tests depend on the icon themes installed. So just compare nullness. */
     100                 :           8 :       g_assert_nonnull (icon);
     101                 :           8 :       icon_str = g_icon_to_string (icon);
     102                 :           8 :       g_test_message ("Icon: %s", icon_str);
     103                 :           8 :       g_free (icon_str);
     104                 :             :     }
     105                 :             :   else
     106                 :             :     {
     107                 :           0 :       g_assert_null (icon);
     108                 :             :     }
     109                 :           8 : }
     110                 :             : 
     111                 :             : static void
     112                 :           1 : test_get_mount_points (void)
     113                 :             : {
     114                 :           1 :   GUnixMountPoint **points = NULL;
     115                 :           1 :   uint64_t time_read = 0;
     116                 :           1 :   size_t n_points = 0;
     117                 :           1 :   int fd = -1;
     118                 :           1 :   char *tmp_file = NULL;
     119                 :             :   gboolean res;
     120                 :             : #ifdef HAVE_USELOCALE
     121                 :             :   locale_t original_locale;
     122                 :             :   locale_t new_locale;
     123                 :             :   locale_t result;
     124                 :             : #endif
     125                 :           1 :   const char *fake_fstab = "# Some comment\n"
     126                 :             :     "/dev/mapper/fedora-root /                       ext4    defaults,x-systemd.device-timeout=0 1 1\n"
     127                 :             :     "UUID=1234-ABCD /boot                   ext4    defaults        1 2\n"
     128                 :             :     "UUID=ABCD-1234          /boot/efi               vfat    umask=0077,shortname=winnt,ro 0 2\n"
     129                 :             :     "/dev/mapper/fedora-home /home                   ext4    defaults,x-systemd.device-timeout=0 1 2\n"
     130                 :             :     "/dev/mapper/fedora-swap none                    swap    defaults,x-systemd.device-timeout=0 0 0\n"
     131                 :             :     "/dev/mapper/unused      none                    ext4    defaults\n";
     132                 :             :   const struct
     133                 :             :     {
     134                 :             :       const char *device_path;
     135                 :             :       const char *fs_type;
     136                 :             :       const char *options;
     137                 :             :       gboolean is_readonly;
     138                 :             :       gboolean is_user_mountable;
     139                 :             :       gboolean is_loopback;
     140                 :             :       gboolean guessed_icon;
     141                 :             :       gboolean guessed_symbolic_icon;
     142                 :             :       const char *guessed_name;
     143                 :             :       gboolean guessed_can_eject;
     144                 :             :     }
     145                 :           1 :   expected_points[] =
     146                 :             :     {
     147                 :             :       {
     148                 :             :         .device_path = "/dev/mapper/fedora-root",
     149                 :             :         .fs_type = "ext4",
     150                 :             :         .options = "defaults,x-systemd.device-timeout=0",
     151                 :             :         .is_readonly = FALSE,
     152                 :             :         .is_user_mountable = FALSE,
     153                 :             :         .is_loopback = FALSE,
     154                 :             :         .guessed_icon = TRUE,
     155                 :             :         .guessed_symbolic_icon = TRUE,
     156                 :             :         .guessed_name = "Filesystem root",
     157                 :             :         .guessed_can_eject = FALSE,
     158                 :             :       },
     159                 :             :       {
     160                 :             :         .device_path = "UUID=1234-ABCD",
     161                 :             :         .fs_type = "ext4",
     162                 :             :         .options = "defaults",
     163                 :             :         .is_readonly = FALSE,
     164                 :             :         .is_user_mountable = FALSE,
     165                 :             :         .is_loopback = FALSE,
     166                 :             :         .guessed_icon = TRUE,
     167                 :             :         .guessed_symbolic_icon = TRUE,
     168                 :             :         .guessed_name = "boot",
     169                 :             :         .guessed_can_eject = FALSE,
     170                 :             :       },
     171                 :             :       {
     172                 :             :         .device_path = "UUID=ABCD-1234",
     173                 :             :         .fs_type = "vfat",
     174                 :             :         .options = "umask=0077,shortname=winnt,ro",
     175                 :             :         .is_readonly = TRUE,
     176                 :             :         .is_user_mountable = FALSE,
     177                 :             :         .is_loopback = FALSE,
     178                 :             :         .guessed_icon = TRUE,
     179                 :             :         .guessed_symbolic_icon = TRUE,
     180                 :             :         .guessed_name = "efi",
     181                 :             :         .guessed_can_eject = FALSE,
     182                 :             :       },
     183                 :             :       {
     184                 :             :         .device_path = "/dev/mapper/fedora-home",
     185                 :             :         .fs_type = "ext4",
     186                 :             :         .options = "defaults,x-systemd.device-timeout=0",
     187                 :             :         .is_readonly = FALSE,
     188                 :             :         .is_user_mountable = FALSE,
     189                 :             :         .is_loopback = FALSE,
     190                 :             :         .guessed_icon = TRUE,
     191                 :             :         .guessed_symbolic_icon = TRUE,
     192                 :             :         .guessed_name = "home",
     193                 :             :         .guessed_can_eject = FALSE,
     194                 :             :       },
     195                 :             :       /* the swap partition is ignored */
     196                 :             :       /* as is the ignored unused partition */
     197                 :             :     };
     198                 :             : 
     199                 :           1 :   g_test_summary ("Basic test of g_unix_mount_points_get_from_file()");
     200                 :             : 
     201                 :           1 :   fd = g_file_open_tmp ("unix-mounts-XXXXXX", &tmp_file, NULL);
     202                 :           1 :   g_assert (fd != -1);
     203                 :           1 :   close (fd);
     204                 :             : 
     205                 :           1 :   res = g_file_set_contents (tmp_file, fake_fstab, -1, NULL);
     206                 :           1 :   g_assert (res);
     207                 :             : 
     208                 :           1 :   points = g_unix_mount_points_get_from_file (tmp_file, &time_read, &n_points);
     209                 :             : 
     210                 :           1 :   if (points == NULL)
     211                 :             :     {
     212                 :             :       /* Some platforms may not support parsing a specific mount point file */
     213                 :           0 :       g_assert_cmpuint (time_read, ==, 0);
     214                 :           0 :       g_assert_cmpuint (n_points, ==, 0);
     215                 :           0 :       g_test_skip ("Parsing mount points from a file not supported on this platform");
     216                 :           0 :       return;
     217                 :             :     }
     218                 :             : 
     219                 :           1 :   g_assert_nonnull (points);
     220                 :             : 
     221                 :             :   /* Check the properties of the mount points. This needs to be done in a known
     222                 :             :    * locale, because the guessed mount point name is translatable. */
     223                 :           1 :   g_assert_cmpuint (n_points, ==, G_N_ELEMENTS (expected_points));
     224                 :             : 
     225                 :             : #ifdef HAVE_USELOCALE
     226                 :           1 :   original_locale = uselocale ((locale_t) 0);
     227                 :           1 :   g_assert_true (original_locale != (locale_t) 0);
     228                 :           1 :   new_locale = newlocale (LC_ALL_MASK, "C", (locale_t) 0);
     229                 :           1 :   g_assert_true (new_locale != (locale_t) 0);
     230                 :           1 :   result = uselocale (new_locale);
     231                 :           1 :   g_assert_true (result == original_locale);
     232                 :             : #endif  /* HAVE_USELOCALE */
     233                 :             : 
     234                 :           5 :   for (size_t i = 0; i < n_points; i++)
     235                 :             :     {
     236                 :           4 :       GIcon *icon = NULL;
     237                 :           4 :       char *name = NULL;
     238                 :             : 
     239                 :           4 :       g_assert_cmpstr (g_unix_mount_point_get_device_path (points[i]), ==, expected_points[i].device_path);
     240                 :           4 :       g_assert_cmpstr (g_unix_mount_point_get_fs_type (points[i]), ==, expected_points[i].fs_type);
     241                 :           4 :       g_assert_cmpstr (g_unix_mount_point_get_options (points[i]), ==, expected_points[i].options);
     242                 :           4 :       g_assert_true (g_unix_mount_point_is_readonly (points[i]) == expected_points[i].is_readonly);
     243                 :           4 :       g_assert_true (g_unix_mount_point_is_user_mountable (points[i]) == expected_points[i].is_user_mountable);
     244                 :           4 :       g_assert_true (g_unix_mount_point_is_loopback (points[i]) == expected_points[i].is_loopback);
     245                 :             : 
     246                 :           4 :       icon = g_unix_mount_point_guess_icon (points[i]);
     247                 :           4 :       assert_cmp_icon (icon, expected_points[i].guessed_icon);
     248                 :           4 :       g_clear_object (&icon);
     249                 :             : 
     250                 :           4 :       icon = g_unix_mount_point_guess_symbolic_icon (points[i]);
     251                 :           4 :       assert_cmp_icon (icon, expected_points[i].guessed_symbolic_icon);
     252                 :           4 :       g_clear_object (&icon);
     253                 :             : 
     254                 :           4 :       name = g_unix_mount_point_guess_name (points[i]);
     255                 :             : #ifdef HAVE_USELOCALE
     256                 :           4 :       g_assert_cmpstr (name, ==, expected_points[i].guessed_name);
     257                 :             : #else
     258                 :             :       g_assert_nonnull (name);
     259                 :             : #endif
     260                 :           4 :       g_free (name);
     261                 :             : 
     262                 :           4 :       g_assert_true (g_unix_mount_point_guess_can_eject (points[i]) == expected_points[i].guessed_can_eject);
     263                 :             :     }
     264                 :             : 
     265                 :           5 :   for (size_t i = 0; i < n_points; i++)
     266                 :           4 :     g_unix_mount_point_free (points[i]);
     267                 :           1 :   g_free (points);
     268                 :           1 :   g_free (tmp_file);
     269                 :             : 
     270                 :             : #ifdef HAVE_USELOCALE
     271                 :           1 :   result = uselocale (original_locale);
     272                 :           1 :   g_assert_true (result == new_locale);
     273                 :           1 :   freelocale (new_locale);
     274                 :             : #endif
     275                 :             : }
     276                 :             : 
     277                 :             : static void
     278                 :           1 : test_get_mount_entries (void)
     279                 :             : {
     280                 :           1 :   GUnixMountEntry **entries = NULL;
     281                 :           1 :   uint64_t time_read = 0;
     282                 :           1 :   size_t n_entries = 0;
     283                 :           1 :   int fd = -1;
     284                 :           1 :   char *tmp_file = NULL;
     285                 :             :   gboolean res;
     286                 :             : #ifdef HAVE_LIBMOUNT
     287                 :             :   /* This is an edited /proc/self/mountinfo file, used because that’s what
     288                 :             :    * libmount parses by default, and it allows for the representation of root_path. */
     289                 :           1 :   const char *fake_mtab = "# Some comment\n"
     290                 :             :     "67 1 253:1 / / rw,relatime shared:1 - ext4 /dev/mapper/fedora-root rw,seclabel\n"
     291                 :             :     "35 67 0:6 / /dev rw,nosuid shared:2 - devtmpfs devtmpfs rw,seclabel,size=4096k,nr_inodes=1995515,mode=755,inode64\n"
     292                 :             :     "1537 1080 253:1 /usr/share/fonts /run/host/fonts ro,nosuid,nodev,relatime master:1 - ext4 /dev/mapper/fedora-root rw,seclabel\n";
     293                 :             : #else
     294                 :             :   /* This is an edited /proc/mounts, used because that’s what getmntent() parses
     295                 :             :    * (and it can’t parse mountinfo files). Unfortunately this means that
     296                 :             :    * non-NULL root_path values are not representable. */
     297                 :             :   const char *fake_mtab = "# Some comment\n"
     298                 :             :     "/dev/mapper/fedora-root / ext4 rw,relatime,seclabel 0 0\n"
     299                 :             :     "devtmpfs /dev devtmpfs rw,nosuid,seclabel,size=4096k,nr_inodes=1995515,mode=755,inode64 0 0\n";
     300                 :             : #endif
     301                 :             :   const struct
     302                 :             :     {
     303                 :             :       const char *device_path;
     304                 :             :       const char *fs_type;
     305                 :             :       const char *mount_path;
     306                 :             :       const char *options;
     307                 :             :       const char *root_path;  /* if supported */
     308                 :             :     }
     309                 :           1 :   expected_entries[] =
     310                 :             :     {
     311                 :             :       {
     312                 :             :         .device_path = "/dev/mapper/fedora-root",
     313                 :             :         .fs_type = "ext4",
     314                 :             :         .mount_path = "/",
     315                 :             :         .options = "rw,relatime,seclabel",
     316                 :             :         .root_path = "/",
     317                 :             :       },
     318                 :             :       {
     319                 :             :         .device_path = "devtmpfs",
     320                 :             :         .fs_type = "devtmpfs",
     321                 :             :         .mount_path = "/dev",
     322                 :             :         .options = "rw,nosuid,seclabel,size=4096k,nr_inodes=1995515,mode=755,inode64",
     323                 :             :         .root_path = "/",
     324                 :             :       },
     325                 :             : #ifdef HAVE_LIBMOUNT
     326                 :             :       {
     327                 :             :         .device_path = "/dev/mapper/fedora-root",
     328                 :             :         .fs_type = "ext4",
     329                 :             :         .mount_path = "/run/host/fonts",
     330                 :             :         .options = "ro,nosuid,nodev,relatime,seclabel",
     331                 :             :         .root_path = "/usr/share/fonts",
     332                 :             :       },
     333                 :             : #endif
     334                 :             :     };
     335                 :             : 
     336                 :           1 :   g_test_summary ("Basic test of g_unix_mounts_get_from_file()");
     337                 :             : 
     338                 :           1 :   fd = g_file_open_tmp ("unix-mounts-XXXXXX", &tmp_file, NULL);
     339                 :           1 :   g_assert (fd != -1);
     340                 :           1 :   close (fd);
     341                 :             : 
     342                 :           1 :   res = g_file_set_contents (tmp_file, fake_mtab, -1, NULL);
     343                 :           1 :   g_assert (res);
     344                 :             : 
     345                 :           1 :   entries = g_unix_mounts_get_from_file (tmp_file, &time_read, &n_entries);
     346                 :             : 
     347                 :           1 :   if (entries == NULL)
     348                 :             :     {
     349                 :             :       /* Some platforms may not support parsing a specific mount entry file */
     350                 :           0 :       g_assert_cmpuint (time_read, ==, 0);
     351                 :           0 :       g_assert_cmpuint (n_entries, ==, 0);
     352                 :           0 :       g_test_skip ("Parsing mount entries from a file not supported on this platform");
     353                 :           0 :       return;
     354                 :             :     }
     355                 :             : 
     356                 :           1 :   g_assert_nonnull (entries);
     357                 :             : 
     358                 :             :   /* Check the properties of the mount entries. */
     359                 :           1 :   g_assert_cmpuint (n_entries, ==, G_N_ELEMENTS (expected_entries));
     360                 :             : 
     361                 :           4 :   for (size_t i = 0; i < n_entries; i++)
     362                 :             :     {
     363                 :           3 :       g_assert_cmpstr (g_unix_mount_get_device_path (entries[i]), ==, expected_entries[i].device_path);
     364                 :           3 :       g_assert_cmpstr (g_unix_mount_get_fs_type (entries[i]), ==, expected_entries[i].fs_type);
     365                 :           3 :       g_assert_cmpstr (g_unix_mount_get_mount_path (entries[i]), ==, expected_entries[i].mount_path);
     366                 :           3 :       g_assert_cmpstr (g_unix_mount_get_options (entries[i]), ==, expected_entries[i].options);
     367                 :             : 
     368                 :             :       /* root_path is only supported by libmount */
     369                 :             : #ifdef HAVE_LIBMOUNT
     370                 :           3 :       g_assert_cmpstr (g_unix_mount_get_root_path (entries[i]), ==, expected_entries[i].root_path);
     371                 :             : #else
     372                 :             :       g_assert_null (g_unix_mount_get_root_path (entries[i]));
     373                 :             : #endif
     374                 :             :     }
     375                 :             : 
     376                 :           4 :   for (size_t i = 0; i < n_entries; i++)
     377                 :           3 :     g_unix_mount_free (entries[i]);
     378                 :           1 :   g_free (entries);
     379                 :           1 :   g_free (tmp_file);
     380                 :             : }
     381                 :             : 
     382                 :             : G_GNUC_END_IGNORE_DEPRECATIONS
     383                 :             : 
     384                 :             : int
     385                 :           1 : main (int   argc,
     386                 :             :       char *argv[])
     387                 :             : {
     388                 :           1 :   setlocale (LC_ALL, "");
     389                 :             : 
     390                 :           1 :   g_test_init (&argc, &argv, NULL);
     391                 :             : 
     392                 :           1 :   g_test_add_func ("/unix-mounts/is-system-fs-type", test_is_system_fs_type);
     393                 :           1 :   g_test_add_func ("/unix-mounts/is-system-device-path", test_is_system_device_path);
     394                 :           1 :   g_test_add_func ("/unix-mounts/system-mount-paths-sorted", test_system_mount_paths_sorted);
     395                 :           1 :   g_test_add_func ("/unix-mounts/get-mount-points", test_get_mount_points);
     396                 :           1 :   g_test_add_func ("/unix-mounts/get-mount-entries", test_get_mount_entries);
     397                 :             : 
     398                 :           1 :   return g_test_run ();
     399                 :             : }
        

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