7290 ZFS test suite needs to control what utilities it can run
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>

          --- old/usr/src/test/zfs-tests/tests/functional/nopwrite/nopwrite.shlib
          +++ new/usr/src/test/zfs-tests/tests/functional/nopwrite/nopwrite.shlib

   1    1  #
   2    2  # This file and its contents are supplied under the terms of the

   3    3  # Common Development and Distribution License ("CDDL"), version 1.0.
   4    4  # You may only use this file in accordance with the terms of version
   5    5  # 1.0 of the CDDL.
   6    6  #
   7    7  # A full copy of the text of the CDDL should have accompanied this
   8    8  # source.  A copy of the CDDL is also available via the Internet at
   9    9  # http://www.illumos.org/license/CDDL.
  10   10  #
  11   11  
  12   12  #
  13      -# Copyright (c) 2012 by Delphix. All rights reserved.
       13 +# Copyright (c) 2012, 2016 by Delphix. All rights reserved.
  14   14  #
  15   15  
  16   16  . $STF_SUITE/include/math.shlib
  17   17  
  18   18  export TESTVOL="testvol.nopwrite"
  19   19  export VOLSIZE="256M"
  20   20  export MEGS="64"
  21   21  
  22   22  function verify_nopwrite
  23   23  {
  24   24          typeset origin=$1
  25   25          typeset snap=$2
  26   26          typeset clone=$3
  27   27          typeset low=1
  28   28          typeset high=99
  29   29  
  30      -        $SYNC
       30 +        sync
  31   31          for i in origin snap clone; do
  32   32                  for j in used refer usedbychildren written; do
  33   33                          typeset ${i}_$j=$(get_prop $j $(eval echo \$$i))
  34   34                  done
  35   35          done
  36   36  
  37   37          #
  38   38          # If we are dealing with a volume, deduct the refreserv from the used
  39   39          # value to prevent real failures from being masked by the unexpected
  40   40          # extra space. Also, volumes use more space for metadata, so adjust the

  41   41          # percentages to be more forgiving.
  42   42          #
  43   43          if [[ "$(get_prop type $origin)" = "volume" ]]; then
  44   44                  typeset rr=$(get_prop refreserv $origin)
  45   45                  ((origin_used -= rr ))
  46   46                  low=2
  47   47                  high=98
  48   48          fi
  49   49  
  50   50          # These values should differ greatly with nopwrite.
  51   51          within_percent $origin_used $clone_used $low && return 1
  52   52          within_percent $origin_refer $origin_usedbychildren $low && return 1

  53   53          within_percent $snap_written $clone_written $low && return 1
  54   54  
  55   55          # These values should be nearly the same with nopwrite.
  56   56          within_percent $origin_used $clone_refer $high || return 1
  57   57          within_percent $origin_used $snap_refer $high || return 1
  58   58  
  59   59          #
  60   60          # The comparisons below should pass regardless of nopwrite. They're
  61   61          # here for sanity.
  62   62          #
  63      -        typeset deadlist=$($ZDB -Pddd $clone | $AWK '/Deadlist:/ {print $2}')
       63 +        typeset deadlist=$(zdb -Pddd $clone | awk '/Deadlist:/ {print $2}')
  64   64          within_percent $deadlist $clone_written $high || return 1
  65   65          within_percent $snap_refer $snap_written $high || return 1
  66   66  
  67   67          return 0
  68   68  }
    

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