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