#! /usr/local/bin/ksh93 -p
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
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# $FreeBSD: releng/12.3/tests/sys/cddl/zfs/tests/snapshot/snapshot_009_pos.ksh 329867 2018-02-23 16:31:00Z asomers $

#
# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# ident	"@(#)snapshot_009_pos.ksh	1.2	07/01/09 SMI"
#
. $STF_SUITE/include/libtest.kshlib

################################################################################
#
# __stc_assertion_start
#
# ID: snapshot_009_pos
#
# DESCRIPTION:
#	Verify 'snapshot -r' and 'destroy -r' can correctly create and destroy 
#	snapshot tree respectively.
#
# STRATEGY:
# 1. Use the snapshot -r to create snapshot for top level pool 
# 2. Verify the children snapshots are created correctly.  
# 3. Use destroy -r to destroy the top level snapshot
# 4. Verify that all children snapshots are destroyed too.
#
# TESTABILITY: explicit
#
# TEST_AUTOMATION_LEVEL: automated
#
# CODING_STATUS: COMPLETED (2006-06-20)
#
# __stc_assertion_end
#
################################################################################

verify_runnable "both"

function cleanup
{
	typeset ds
	typeset snap

	for ds in $ctr/$TESTVOL1 $ctr/$TESTCLONE; do
		datasetexists $ds && \
			log_must $ZFS destroy -f $ds
	done 

	for snap in $ctr/$TESTFS1@$TESTSNAP1 \
		$snappool $snapvol $snapctr $snapctrvol \
		$snapctrclone $snapctrfs
	do
		snapexists $snap && \
			log_must $ZFS destroy -rf $snap
	done

}

log_assert "Verify snapshot -r can correctly create a snapshot tree."
log_onexit cleanup

ctr=$TESTPOOL/$TESTCTR
ctrfs=$ctr/$TESTFS1
ctrclone=$ctr/$TESTCLONE
ctrvol=$ctr/$TESTVOL1
snappool=$SNAPPOOL
snapfs=$SNAPFS
snapctr=$ctr@$TESTSNAP
snapvol=$SNAPFS1
snapctrvol=$ctrvol@$TESTSNAP
snapctrclone=$ctrclone@$TESTSNAP
snapctrfs=$SNAPCTR

#preparation for testing
log_must $ZFS snapshot $ctrfs@$TESTSNAP1
log_must $ZFS clone $ctrfs@$TESTSNAP1 $ctrclone
if is_global_zone; then
	log_must $ZFS create -V $VOLSIZE $ctrvol
else
	log_must $ZFS create $ctrvol
fi

log_must $ZFS snapshot -r $snappool

#verify the snapshot -r results
for snap in $snappool $snapfs $snapvol $snapctr $snapctrvol \
		$snapctrclone $snapctrfs
do
	! snapexists $snap && \
		log_fail "The snapshot $snap is not created via -r option."
done

log_note "Verify that destroy -r can destroy the snapshot tree."

log_must $ZFS destroy -r $snappool
for snap in $snappool $snapfs $snapvol $snapctr $snapctrvol \
		$snapctrclone $snapctrfs
do
	snapexists $snap && \
		log_fail "The snapshot $snap is not destroyed correctly."
done

log_note "Verify that the snapshot with different name should \
		be not destroyed."
! snapexists $ctrfs@$TESTSNAP1 && \
	log_fail "destroy -r incorrectly destroys the snapshot \
		$ctrfs@$TESTSNAP1."

log_pass  "snapshot|destroy -r with snapshot tree works as expected."
