tests/test-extentlist.sh

   1 #!/usr/bin/env bash
   2 # nbdkit
   3 # Copyright (C) 2016-2020 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
   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 extentlist filter.
  34
  35 source ./functions.sh
  36 set -e
  37 set -x
  38
  39 requires jq --version
  40 requires qemu-img --version
  41 requires qemu-img map --help
  42
  43 out=test-extentlist.out
  44 input=test-extentlist.in
  45 expected=test-extentlist.expected
  46 files="$out $input $expected"
  47 rm -f $files
  48 cleanup_fn rm $files
  49
  50 test ()
  51 {
  52     nbdkit -v -D extentlist.lookup=1 \
  53            -r -U - \
  54            --filter=extentlist \
  55            null size=$1 extentlist=$input \
  56            --run 'qemu-img map -f raw --output=json $nbd' |
  57         jq -c '.[] | {start:.start, length:.length, data:.data, zero:.zero}' \
  58            > $out
  59     diff -u $out $expected
  60 }
  61
  62 # Empty extent list.
  63 cat > $input <<'EOF'
  64 EOF
  65
  66 cat > $expected <<'EOF'
  67 {"start":0,"length":0,"data":false,"zero":false}
  68 EOF
  69 test 0
  70 cat > $expected <<'EOF'
  71 {"start":0,"length":1048576,"data":false,"zero":true}
  72 EOF
  73 test 1M
  74
  75 # Extent list covering 0-1M with data.
  76 cat > $input <<'EOF'
  77 0 1M
  78 EOF
  79
  80 cat > $expected <<'EOF'
  81 {"start":0,"length":0,"data":false,"zero":false}
  82 EOF
  83 test 0
  84 cat > $expected <<'EOF'
  85 {"start":0,"length":1048576,"data":true,"zero":false}
  86 EOF
  87 test 1M
  88
  89 # Extent list covering 1-2M with data.
  90 cat > $input <<'EOF'
  91 1M 1M
  92 EOF
  93
  94 cat > $expected <<'EOF'
  95 {"start":0,"length":0,"data":false,"zero":false}
  96 EOF
  97 test 0
  98 cat > $expected <<'EOF'
  99 {"start":0,"length":1048576,"data":false,"zero":true}
 100 EOF
 101 test 1M
 102 cat > $expected <<'EOF'
 103 {"start":0,"length":1048576,"data":false,"zero":true}
 104 {"start":1048576,"length":1048576,"data":true,"zero":false}
 105 EOF
 106 test 2M
 107 cat > $expected <<'EOF'
 108 {"start":0,"length":1048576,"data":false,"zero":true}
 109 {"start":1048576,"length":1048576,"data":true,"zero":false}
 110 {"start":2097152,"length":1048576,"data":false,"zero":true}
 111 EOF
 112 test 3M
 113
 114 # Extent list covering 1-2M with data, but in a more fragmented
 115 # way than the above.
 116 cat > $input <<'EOF'
 117 1024K 512K
 118 1536K 512K
 119 EOF
 120
 121 cat > $expected <<'EOF'
 122 {"start":0,"length":0,"data":false,"zero":false}
 123 EOF
 124 test 0
 125 cat > $expected <<'EOF'
 126 {"start":0,"length":1048576,"data":false,"zero":true}
 127 EOF
 128 test 1M
 129 cat > $expected <<'EOF'
 130 {"start":0,"length":1048576,"data":false,"zero":true}
 131 {"start":1048576,"length":1048576,"data":true,"zero":false}
 132 EOF
 133 test 2M
 134 cat > $expected <<'EOF'
 135 {"start":0,"length":1048576,"data":false,"zero":true}
 136 {"start":1048576,"length":1048576,"data":true,"zero":false}
 137 {"start":2097152,"length":1048576,"data":false,"zero":true}
 138 EOF
 139 test 3M
 140
 141 # Adjacent data and holes.
 142 cat > $input <<'EOF'
 143 0 1M
 144 2M 1M
 145 4M 1M
 146 EOF
 147
 148 cat > $expected <<'EOF'
 149 {"start":0,"length":0,"data":false,"zero":false}
 150 EOF
 151 test 0
 152 cat > $expected <<'EOF'
 153 {"start":0,"length":1048576,"data":true,"zero":false}
 154 EOF
 155 test 1M
 156 cat > $expected <<'EOF'
 157 {"start":0,"length":1048576,"data":true,"zero":false}
 158 {"start":1048576,"length":1048576,"data":false,"zero":true}
 159 EOF
 160 test 2M
 161 cat > $expected <<'EOF'
 162 {"start":0,"length":1048576,"data":true,"zero":false}
 163 {"start":1048576,"length":1048576,"data":false,"zero":true}
 164 {"start":2097152,"length":1048576,"data":true,"zero":false}
 165 EOF
 166 test 3M
 167 cat > $expected <<'EOF'
 168 {"start":0,"length":1048576,"data":true,"zero":false}
 169 {"start":1048576,"length":1048576,"data":false,"zero":true}
 170 {"start":2097152,"length":1048576,"data":true,"zero":false}
 171 {"start":3145728,"length":1048576,"data":false,"zero":true}
 172 {"start":4194304,"length":1048576,"data":true,"zero":false}
 173 {"start":5242880,"length":1048576,"data":false,"zero":true}
 174 EOF
 175 test 6M