1#! /bin/ksh -p
2#
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7# You may not use this file except in compliance with the License.
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20# CDDL HEADER END
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22
23#
24# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26#
27
28#
29# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
30#
31
32. $STF_SUITE/include/libtest.shlib
33. $STF_SUITE/tests/functional/snapshot/snapshot.cfg
34
35#
36# DESCRIPTION:
37#	Verify 'destroy -r' can correctly destroy a snapshot tree at any point.
38#
39# STRATEGY:
40# 1. Use the snapshot -r to create snapshot for top level pool
41# 2. Select a middle point of the snapshot tree, use destroy -r to destroy all
42#	snapshots beneath the point.
43# 3. Verify the destroy results.
44#
45
46verify_runnable "both"
47
48function cleanup
49{
50	typeset snap
51
52	datasetexists $ctrvol && \
53		log_must zfs destroy -f $ctrvol
54
55	for snap in $ctrfs@$TESTSNAP1 \
56		$snappool $snapvol $snapctr $snapctrvol \
57		$snapctrclone $snapctrfs
58	do
59		snapexists $snap && \
60			log_must zfs destroy -rf $snap
61	done
62
63}
64
65log_assert "Verify 'destroy -r' can correctly destroy a snapshot subtree at any point."
66log_onexit cleanup
67
68ctr=$TESTPOOL/$TESTCTR
69ctrfs=$ctr/$TESTFS1
70ctrvol=$ctr/$TESTVOL1
71snappool=$SNAPPOOL
72snapfs=$SNAPFS
73snapctr=$ctr@$TESTSNAP
74snapvol=$SNAPFS1
75snapctrvol=$ctr/$TESTVOL1@$TESTSNAP
76snapctrclone=$ctr/$TESTCLONE@$TESTSNAP
77snapctrfs=$SNAPCTR
78
79#preparation for testing
80log_must zfs snapshot $ctrfs@$TESTSNAP1
81if is_global_zone; then
82	log_must zfs create -V $VOLSIZE $ctrvol
83else
84	log_must zfs create $ctrvol
85fi
86
87log_must zfs snapshot -r $snappool
88
89#select the $TESTCTR as destroy point, $TESTCTR is a child of $TESTPOOL
90log_must zfs destroy -r $snapctr
91for snap in $snapctr $snapctrvol $snapctrclone $snapctrfs; do
92	snapexists $snap && \
93		log_fail "The snapshot $snap is not destroyed correctly."
94done
95
96for snap in $snappool $snapfs $snapvol $ctrfs@$TESTSNAP1;do
97	! snapexists $snap && \
98		log_fail "The snapshot $snap should be not destroyed."
99done
100
101log_pass  "'destroy -r' destroys snapshot subtree as expected."
102