tests/df/skip-rootfs.sh

   1 #!/bin/sh
   2 # Test df's behavior for skipping the pseudo "rootfs" file system.
   3
   4 # Copyright (C) 2012-2024 Free Software Foundation, Inc.
   5
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  18
  19 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
  20 print_ver_ df
  21
  22 # Protect against inaccessible remote mounts etc.
  23 timeout 10 df || skip_ "df fails"
  24
  25 # Exclude "fuse.portal" as this currently returns EPERM from statfs()
  26 DF_a() { df -a -x fuse.portal "$@"; }
  27
  28 # Verify that rootfs is in mtab (and shown when the -a option is specified).
  29 # Note this is the case when /proc/self/mountinfo is parsed
  30 # rather than /proc/mounts.  I.e., when libmount is being used.
  31 DF_a >out || fail=1
  32 grep '^rootfs' out || skip_ 'no rootfs in mtab'
  33
  34 # Ensure that rootfs is suppressed when no options is specified.
  35 df >out || fail=1
  36 grep '^rootfs' out && { fail=1; cat out; }
  37
  38 # Ensure that rootfs is yet skipped when explicitly specifying "-t rootfs".
  39 # As df emits "no file systems processed" in this case, it would be a failure
  40 # if df exited with status Zero.
  41 returns_ 1 df -t rootfs >out || fail=1
  42 grep '^rootfs' out && { fail=1; cat out; }
  43
  44 # Ensure that the rootfs is shown when explicitly both specifying "-t rootfs"
  45 # and the -a option.
  46 DF_a -t rootfs >out || fail=1
  47 grep '^rootfs' out || { fail=1; cat out; }
  48
  49 # Ensure that the rootfs is omitted in all_fs mode when it is explicitly
  50 # black-listed.
  51 DF_a -x rootfs >out || fail=1
  52 grep '^rootfs' out && { fail=1; cat out; }
  53
  54 test "$fail" = 1 && dump_mount_list_
  55
  56 Exit $fail