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>

*** 24,34 ****
  # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
  
  #
! # Copyright (c) 2013 by Delphix. All rights reserved.
  #
  
  . $STF_SUITE/include/libtest.shlib
  . $STF_SUITE/tests/functional/snapshot/snapshot.cfg
  
--- 24,34 ----
  # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  # Use is subject to license terms.
  #
  
  #
! # Copyright (c) 2013, 2016 by Delphix. All rights reserved.
  #
  
  . $STF_SUITE/include/libtest.shlib
  . $STF_SUITE/tests/functional/snapshot/snapshot.cfg
  
*** 50,91 ****
  
  function cleanup
  {
          snapexists $SNAPFS
          if [[ $? -eq 0 ]]; then
!                 log_must $ZFS destroy $SNAPFS
          fi
  
          if [[ -e $SNAPDIR ]]; then
!                 log_must $RM -rf $SNAPDIR > /dev/null 2>&1
          fi
  
          if [[ -e $TESTDIR ]]; then
!                 log_must $RM -rf $TESTDIR/* > /dev/null 2>&1
          fi
  }
  
  log_assert "Verify a file system snapshot is identical to original."
  
  log_onexit cleanup
  
  log_note "Create a file in the zfs filesystem..."
! log_must $FILE_WRITE -o create -f $TESTDIR/$TESTFILE -b $BLOCKSZ \
      -c $NUM_WRITES -d $DATA
  
  log_note "Sum the file, save for later comparison..."
! FILE_SUM=`$SUM -r $TESTDIR/$TESTFILE | $AWK  '{ print $1 }'`
  log_note "FILE_SUM = $FILE_SUM"
  
  log_note "Create a snapshot and mount it..."
! log_must $ZFS snapshot $SNAPFS
  
  log_note "Append to the original file..."
! log_must $FILE_WRITE -o append -f $TESTDIR/$TESTFILE -b $BLOCKSZ \
      -c $NUM_WRITES -d $DATA
  
! SNAP_FILE_SUM=`$SUM -r $SNAPDIR/$TESTFILE | $AWK '{ print $1 }'`
  if [[ $SNAP_FILE_SUM -ne $FILE_SUM ]]; then
          log_fail "Sums do not match, aborting!! ($SNAP_FILE_SUM != $FILE_SUM)"
  fi
  
  log_pass "Both Sums match. ($SNAP_FILE_SUM == $FILE_SUM)"
--- 50,91 ----
  
  function cleanup
  {
          snapexists $SNAPFS
          if [[ $? -eq 0 ]]; then
!                 log_must zfs destroy $SNAPFS
          fi
  
          if [[ -e $SNAPDIR ]]; then
!                 log_must rm -rf $SNAPDIR > /dev/null 2>&1
          fi
  
          if [[ -e $TESTDIR ]]; then
!                 log_must rm -rf $TESTDIR/* > /dev/null 2>&1
          fi
  }
  
  log_assert "Verify a file system snapshot is identical to original."
  
  log_onexit cleanup
  
  log_note "Create a file in the zfs filesystem..."
! log_must file_write -o create -f $TESTDIR/$TESTFILE -b $BLOCKSZ \
      -c $NUM_WRITES -d $DATA
  
  log_note "Sum the file, save for later comparison..."
! FILE_SUM=`sum -r $TESTDIR/$TESTFILE | awk  '{ print $1 }'`
  log_note "FILE_SUM = $FILE_SUM"
  
  log_note "Create a snapshot and mount it..."
! log_must zfs snapshot $SNAPFS
  
  log_note "Append to the original file..."
! log_must file_write -o append -f $TESTDIR/$TESTFILE -b $BLOCKSZ \
      -c $NUM_WRITES -d $DATA
  
! SNAP_FILE_SUM=`sum -r $SNAPDIR/$TESTFILE | awk '{ print $1 }'`
  if [[ $SNAP_FILE_SUM -ne $FILE_SUM ]]; then
          log_fail "Sums do not match, aborting!! ($SNAP_FILE_SUM != $FILE_SUM)"
  fi
  
  log_pass "Both Sums match. ($SNAP_FILE_SUM == $FILE_SUM)"