#!/bin/ksh -p
#
# CDDL HEADER START
#
# 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.
#
# CDDL HEADER END
#

#
# Copyright (c) 2019 by Tim Chase. All rights reserved.
# Copyright (c) 2019 Lawrence Livermore National Security, LLC.
#

. $STF_SUITE/include/libtest.shlib
. $STF_SUITE/tests/functional/cli_root/zpool_trim/zpool_trim.kshlib

#
# DESCRIPTION:
# Trimming does not cause file corruption.
#
# STRATEGY:
# 1. Create a one-disk pool.
# 2. Write data to the pool.
# 3. Start trimming and verify that trimming is active.
# 4. Write more data to the pool.
# 5. Export the pool and use zdb to validate checksums.
#

function cleanup
{
	if poolexists $TESTPOOL; then
		destroy_pool $TESTPOOL
	fi

	if [[ -d "$TESTDIR" ]]; then
		rm -rf "$TESTDIR"
	fi
}
log_onexit cleanup

LARGESIZE=$((MINVDEVSIZE * 4))
LARGEFILE="$TESTDIR/largefile"

log_must mkdir "$TESTDIR"
log_must truncate -s $LARGESIZE "$LARGEFILE"
log_must zpool create $TESTPOOL "$LARGEFILE"

log_must dd if=/dev/urandom of=/$TESTPOOL/file1 bs=1048576 count=64
sync_all_pools
log_must zpool trim $TESTPOOL

[[ -z "$(trim_progress $TESTPOOL $DISK1)" ]] && \
    log_fail "Trimming did not start"

log_must dd if=/dev/urandom of=/$TESTPOOL/file2 bs=1048576 count=64
sync_all_pools

log_must zpool export $TESTPOOL
log_must zdb -e -p "$TESTDIR" -cc $TESTPOOL

log_pass "Trimming does not corrupt existing or new data"
