tests/test-blocksize-policy.sh

   1 #!/usr/bin/env bash
   2 # nbdkit
   3 # Copyright (C) 2019-2022 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
   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 source ./functions.sh
  34 set -e
  35 set -x
  36
  37 requires_plugin eval
  38 requires nbdsh -c 'print(h.get_block_size)'
  39 requires_nbdsh_uri
  40
  41 # Run nbdkit eval + filter and check resulting block size constraints
  42 # using some nbdsh.
  43
  44 # No parameters.
  45 nbdkit -U - eval \
  46        block_size="echo 64K 128K 32M" \
  47        get_size="echo 0" \
  48        --filter=blocksize-policy \
  49        --run 'nbdsh \
  50            -u "$uri" \
  51            -c "assert h.get_block_size(nbd.SIZE_MINIMUM) == 64 * 1024" \
  52            -c "assert h.get_block_size(nbd.SIZE_PREFERRED) == 128 * 1024" \
  53            -c "assert h.get_block_size(nbd.SIZE_MAXIMUM) == 32 * 1024 * 1024" \
  54       '
  55
  56 # Adjust single values.
  57 nbdkit -U - eval \
  58        block_size="echo 64K 128K 32M" \
  59        get_size="echo 0" \
  60        --filter=blocksize-policy \
  61        blocksize-minimum=1 \
  62        --run 'nbdsh \
  63            -u "$uri" \
  64            -c "assert h.get_block_size(nbd.SIZE_MINIMUM) == 1" \
  65            -c "assert h.get_block_size(nbd.SIZE_PREFERRED) == 128 * 1024" \
  66            -c "assert h.get_block_size(nbd.SIZE_MAXIMUM) == 32 * 1024 * 1024" \
  67       '
  68 nbdkit -U - eval \
  69        block_size="echo 64K 128K 32M" \
  70        get_size="echo 0" \
  71        --filter=blocksize-policy \
  72        blocksize-preferred=64K \
  73        --run 'nbdsh \
  74            -u "$uri" \
  75            -c "assert h.get_block_size(nbd.SIZE_MINIMUM) == 64 * 1024" \
  76            -c "assert h.get_block_size(nbd.SIZE_PREFERRED) == 64 * 1024" \
  77            -c "assert h.get_block_size(nbd.SIZE_MAXIMUM) == 32 * 1024 * 1024" \
  78       '
  79 nbdkit -U - eval \
  80        block_size="echo 64K 128K 32M" \
  81        get_size="echo 0" \
  82        --filter=blocksize-policy \
  83        blocksize-maximum=1M \
  84        --run 'nbdsh \
  85            -u "$uri" \
  86            -c "assert h.get_block_size(nbd.SIZE_MINIMUM) == 64 * 1024" \
  87            -c "assert h.get_block_size(nbd.SIZE_PREFERRED) == 128 * 1024" \
  88            -c "assert h.get_block_size(nbd.SIZE_MAXIMUM) == 1 * 1024 * 1024" \
  89       '
  90
  91 # Adjust all values for a plugin which is advertising.
  92 nbdkit -U - eval \
  93        block_size="echo 64K 128K 32M" \
  94        get_size="echo 0" \
  95        --filter=blocksize-policy \
  96        blocksize-minimum=1 \
  97        blocksize-preferred=4K \
  98        blocksize-maximum=1M \
  99        --run 'nbdsh \
 100            -u "$uri" \
 101            -c "assert h.get_block_size(nbd.SIZE_MINIMUM) == 1" \
 102            -c "assert h.get_block_size(nbd.SIZE_PREFERRED) == 4 * 1024" \
 103            -c "assert h.get_block_size(nbd.SIZE_MAXIMUM) == 1 * 1024 * 1024" \
 104       '
 105
 106 # Set all values for a plugin which is not advertising.
 107 nbdkit -U - eval \
 108        get_size="echo 0" \
 109        --filter=blocksize-policy \
 110        blocksize-minimum=1 \
 111        blocksize-preferred=4K \
 112        blocksize-maximum=1M \
 113        --run 'nbdsh \
 114            -u "$uri" \
 115            -c "assert h.get_block_size(nbd.SIZE_MINIMUM) == 1" \
 116            -c "assert h.get_block_size(nbd.SIZE_PREFERRED) == 4 * 1024" \
 117            -c "assert h.get_block_size(nbd.SIZE_MAXIMUM) == 1 * 1024 * 1024" \
 118       '