tests/test-nbd-block-size.sh

   1 #!/usr/bin/env bash
   2 # nbdkit
   3 # Copyright Red Hat
   4 #
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   6 # modification, are permitted provided that the following conditions are
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  10 # notice, this list of conditions and the following disclaimer.
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  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.
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  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
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  23 # PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
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  31 # SUCH DAMAGE.
  32
  33 source ./functions.sh
  34 set -e
  35 set -x
  36
  37 requires_plugin eval
  38 requires_plugin nbd
  39 requires nbdsh -c 'print(h.get_block_size)'
  40 requires_nbdsh_uri
  41
  42 # Create an nbdkit eval plugin which presents block size constraints.
  43 # Check the advertised block size constraints can be read.
  44 nbdkit -U - eval \
  45        block_size="echo 64K 128K 32M" \
  46        get_size="echo 0" \
  47        --run '
  48     nbdkit -U - nbd $uri --run "
  49         nbdsh \
  50            -u \$uri \
  51            -c \"assert h.get_block_size(nbd.SIZE_MINIMUM) == 64 * 1024\" \
  52            -c \"assert h.get_block_size(nbd.SIZE_PREFERRED) == 128 * 1024\" \
  53            -c \"assert h.get_block_size(nbd.SIZE_MAXIMUM) == 32 * 1024 * 1024\" \
  54     "
  55 '