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>

*** 25,35 ****
  # 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
  
--- 25,35 ----
  # 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
  
*** 55,69 ****
  function cleanup
  {
          cd $SAVED_DIR
  
          if datasetexists $TESTPOOL/$TESTFS ; then
!                 log_must $ZFS destroy -Rf $TESTPOOL/$TESTFS
          fi
  
!         log_must $ZFS create $TESTPOOL/$TESTFS
!         log_must $ZFS set mountpoint=$TESTDIR $TESTPOOL/$TESTFS
  }
  
  function verify_structure {
  
          # check absolute paths
--- 55,69 ----
  function cleanup
  {
          cd $SAVED_DIR
  
          if datasetexists $TESTPOOL/$TESTFS ; then
!                 log_must zfs destroy -Rf $TESTPOOL/$TESTFS
          fi
  
!         log_must zfs create $TESTPOOL/$TESTFS
!         log_must zfs set mountpoint=$TESTDIR $TESTPOOL/$TESTFS
  }
  
  function verify_structure {
  
          # check absolute paths
*** 143,179 ****
  # ./dir1/file4
  # ./dir1/dir2/file5
  # ./dir1/dir2/file6
  
  cd $TESTDIR
! $MKFILE 10m file1
! $MKFILE 20m file2
! $MKDIR dir1
  cd dir1
! $MKFILE 10m file3
! $MKFILE 20m file4
! $MKDIR dir2
  cd dir2
! $MKFILE 10m file5
! $MKFILE 20m file6
  
  # Now walk the directory structure verifying it
  cd $TESTDIR
  verify_structure
  
  # Take snapshots
! log_must $ZFS snapshot $TESTPOOL/$TESTFS@snap_a
! log_must $ZFS snapshot $TESTPOOL/$TESTFS@snap_b
  
  # Change the filesystem structure by renaming files in the original structure
  # The snapshot file structure should not change
  cd $TESTDIR
! log_must $MV file2 file99
  cd dir1
! log_must $MV file4 file99
  cd dir2
! log_must $MV file6 file99
  
  # verify the top level snapshot directories
  verify_dir $TESTDIR/.zfs
  verify_dir $TESTDIR/.zfs/snapshot
  verify_dir $TESTDIR/.zfs/snapshot/snap_a
--- 143,179 ----
  # ./dir1/file4
  # ./dir1/dir2/file5
  # ./dir1/dir2/file6
  
  cd $TESTDIR
! mkfile 10m file1
! mkfile 20m file2
! mkdir dir1
  cd dir1
! mkfile 10m file3
! mkfile 20m file4
! mkdir dir2
  cd dir2
! mkfile 10m file5
! mkfile 20m file6
  
  # Now walk the directory structure verifying it
  cd $TESTDIR
  verify_structure
  
  # Take snapshots
! log_must zfs snapshot $TESTPOOL/$TESTFS@snap_a
! log_must zfs snapshot $TESTPOOL/$TESTFS@snap_b
  
  # Change the filesystem structure by renaming files in the original structure
  # The snapshot file structure should not change
  cd $TESTDIR
! log_must mv file2 file99
  cd dir1
! log_must mv file4 file99
  cd dir2
! log_must mv file6 file99
  
  # verify the top level snapshot directories
  verify_dir $TESTDIR/.zfs
  verify_dir $TESTDIR/.zfs/snapshot
  verify_dir $TESTDIR/.zfs/snapshot/snap_a