tests/test-file-readonly.sh

   1 #!/usr/bin/env bash
   2 # nbdkit
   3 # Copyright Red Hat
   4 #
   5 # Redistribution and use in source and binary forms, with or without
   6 # modification, are permitted provided that the following conditions are
   7 # met:
   8 #
   9 # * Redistributions of source code must retain the above copyright
  10 # notice, this list of conditions and the following disclaimer.
  11 #
  12 # * Redistributions in binary form must reproduce the above copyright
  13 # notice, this list of conditions and the following disclaimer in the
  14 # documentation and/or other materials provided with the distribution.
  15 #
  16 # * Neither the name of Red Hat nor the names of its contributors may be
  17 # used to endorse or promote products derived from this software without
  18 # specific prior written permission.
  19 #
  20 # THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
  21 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
  22 # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  23 # PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
  24 # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  27 # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  28 # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  29 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  30 # OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31 # SUCH DAMAGE.
  32
  33 # Test the file plugin on readonly files.
  34
  35 source ./functions.sh
  36 set -e
  37 set -x
  38
  39 requires_non_root
  40 requires_plugin file
  41 requires_nbdsh_uri
  42 requires $TRUNCATE --version
  43
  44 sock=$(mktemp -u /tmp/nbdkit-test-sock.XXXXXX)
  45 files="file-readonly.pid file-readonly.img $sock"
  46 rm -f $files
  47 cleanup_fn rm -f $files
  48
  49 $TRUNCATE -s 16384 file-readonly.img
  50 chmod a-w file-readonly.img
  51 start_nbdkit -P file-readonly.pid -U $sock file file-readonly.img
  52
  53 # Try to test all the major functions supported by both
  54 # the Unix and Windows versions of the file plugin.
  55 nbdsh -u "nbd+unix://?socket=$sock" -c '
  56 assert h.is_read_only()
  57 assert not h.can_zero()
  58
  59 buf = h.pread(8192, 0)
  60 assert buf == b"\0" * 8192
  61
  62 if h.can_flush():
  63    h.flush()
  64 '