usr/src/test/zfs-tests/tests/functional/channel_program/lua_core/tst.return_large.ksh

   1 #!/bin/ksh -p
   2 #
   3 # This file and its contents are supplied under the terms of the
   4 # Common Development and Distribution License ("CDDL"), version 1.0.
   5 # You may only use this file in accordance with the terms of version
   6 # 1.0 of the CDDL.
   7 #
   8 # A full copy of the text of the CDDL should have accompanied this
   9 # source.  A copy of the CDDL is also available via the Internet at
  10 # http://www.illumos.org/license/CDDL.
  11 #
  12
  13 #
  14 # Copyright (c) 2016, 2017 by Delphix. All rights reserved.
  15 #
  16
  17 . $STF_SUITE/tests/functional/channel_program/channel_common.kshlib
  18
  19 #
  20 # DESCRIPTION: Returning very large (up to the memory limit) lists should
  21 # function correctly.
  22 #
  23
  24 verify_runnable "global"
  25
  26 fs=$TESTPOOL/$TESTFS/testchild
  27
  28 function cleanup
  29 {
  30         datasetexists $fs && log_must zfs destroy -R $fs
  31 }
  32
  33 log_onexit cleanup
  34
  35 log_must zfs create $fs
  36
  37 #
  38 # Actually checking in the ~500kb expected result of this program would be
  39 # awful, so we just make sure it was as long as we expected.
  40 #
  41 output_lines=$(log_must zfs program $TESTPOOL \
  42     $ZCP_ROOT/lua_core/tst.return_large.zcp | wc -l)
  43
  44 [[ $output_lines -lt 5000 ]] &&
  45     log_fail "Expected return of full list but only got $output_lines lines"
  46
  47 #
  48 # Make sure we fail if the return is over the memory limit
  49 #
  50 log_mustnot_program $TESTPOOL -m 10000 \
  51     $ZCP_ROOT/lua_core/tst.return_large.zcp
  52
  53 log_pass "Large return values work properly"
  54