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#!/bin/ksh -p
#
# This file and its contents are supplied under the terms of the
# Common Development and Distribution License ("CDDL"), version 1.0.
# You may only use this file in accordance with the terms of version
# 1.0 of the CDDL.
#
# A full copy of the text of the CDDL should have accompanied this
# source. A copy of the CDDL is also available via the Internet at
# http://www.illumos.org/license/CDDL.
#
#
# Copyright (c) 2016, 2017 by Delphix. All rights reserved.
#
. $STF_SUITE/tests/functional/channel_program/channel_common.kshlib
#
# DESCRIPTION: Returning very large (up to the memory limit) lists should
# function correctly.
#
verify_runnable "global"
fs=$TESTPOOL/$TESTFS/testchild
function cleanup
{
datasetexists $fs && log_must zfs destroy -R $fs
}
log_onexit cleanup
log_must zfs create $fs
#
# Actually checking in the ~500kb expected result of this program would be
# awful, so we just make sure it was as long as we expected.
#
output_lines=$(log_must zfs program $TESTPOOL \
$ZCP_ROOT/lua_core/tst.return_large.zcp | wc -l)
[[ $output_lines -lt 5000 ]] &&
log_fail "Expected return of full list but only got $output_lines lines"
#
# Make sure we fail if the return is over the memory limit
#
log_mustnot_program -m 10000 $TESTPOOL \
$ZCP_ROOT/lua_core/tst.return_large.zcp
log_pass "Large return values work properly"
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