tests/test-swab-16r.sh

   1 #!/usr/bin/env bash
   2 # nbdkit
   3 # Copyright (C) 2018-2020 Red Hat Inc.
   4 #
   5 # Redistribution and use in source and binary forms, with or without
   6 # modification, are permitted provided that the following conditions are
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  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,
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  26 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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  30 # OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31 # SUCH DAMAGE.
  32
  33 # Test swab filter.
  34
  35 source ./functions.sh
  36 set -e
  37 set -x
  38
  39 requires_nbdsh_uri
  40
  41 sock=$(mktemp -u /tmp/nbdkit-test-sock.XXXXXX)
  42 files="$sock swab-16r.pid"
  43 rm -f $files
  44 cleanup_fn rm -f $files
  45
  46 start_nbdkit -P swab-16r.pid -U $sock --filter=swab pattern size=$((128*1024))
  47
  48 nbdsh --connect "nbd+unix://?socket=$sock" \
  49       -c '
  50 # Read back part of the pattern and check it is byte-swapped.
  51 # Original pattern is:
  52 # 00 00 00 00 00 00 ff f8
  53 # 00 00 00 00 00 01 00 00
  54 # 00 00 00 00 00 01 00 08
  55 # 00 00 00 00 00 01 00 10
  56 # Expected output is:
  57 # 00 00 00 00 00 00 f8 ff
  58 # 00 00 00 00 01 00 00 00
  59 # 00 00 00 00 01 00 08 00
  60 # 00 00 00 00 01 00 10 00
  61
  62 buf = h.pread(32, 65528)
  63 assert buf == bytearray([0, 0, 0, 0, 0, 0, 0xf8, 0xff,
  64                          0, 0, 0, 0, 1, 0, 0,    0,
  65                          0, 0, 0, 0, 1, 0, 8,    0,
  66                          0, 0, 0, 0, 1, 0, 0x10, 0])
  67 '