1#! /usr/local/bin/ksh93 -p
2#
3# CDDL HEADER START
4#
5# The contents of this file are subject to the terms of the
6# Common Development and Distribution License (the "License").
7# You may not use this file except in compliance with the License.
8#
9# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10# or http://www.opensolaris.org/os/licensing.
11# See the License for the specific language governing permissions
12# and limitations under the License.
13#
14# When distributing Covered Code, include this CDDL HEADER in each
15# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16# If applicable, add the following below this CDDL HEADER, with the
17# fields enclosed by brackets "[]" replaced with your own identifying
18# information: Portions Copyright [yyyy] [name of copyright owner]
19#
20# CDDL HEADER END
21#
22
23# $FreeBSD$
24
25#
26# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
27# Use is subject to license terms.
28#
29# ident	"@(#)snapshot_004_pos.ksh	1.2	07/01/09 SMI"
30#
31. $STF_SUITE/include/libtest.kshlib
32
33################################################################################
34#
35# __stc_assertion_start
36#
37# ID: snapshot_004_pos
38#
39# DESCRIPTION:
40# Create a null snapshot i.e. a snapshot created before file system
41# activity is empty.
42#
43# STRATEGY:
44# 1. Empty a file system
45# 2. Take a snapshot of the empty file system.
46# 3. Populate the file system
47# 4. Verify the snapshot is still empty
48#
49# TESTABILITY: explicit
50#
51# TEST_AUTOMATION_LEVEL: automated
52#
53# CODING_STATUS: COMPLETED (2005-07-04)
54#
55# __stc_assertion_end
56#
57################################################################################
58
59verify_runnable "both"
60
61function cleanup
62{
63	snapexists $SNAPFS
64	[[ $? -eq 0 ]] && \
65		log_must $ZFS destroy $SNAPFS
66
67	[[ -e $TESTDIR ]] && \
68		log_must $RM -rf $TESTDIR/* > /dev/null 2>&1
69}
70
71log_assert "Verify that a snapshot of an empty file system remains empty."
72
73log_onexit cleanup
74
75[[ -n $TESTDIR ]] && \
76    log_must $RM -rf $TESTDIR/* > /dev/null 2>&1
77
78log_must $ZFS snapshot $SNAPFS
79FILE_COUNT=`$LS -Al $SNAPDIR | $GREP -v "total 0" | wc -l`
80if [[ $FILE_COUNT -ne 0 ]]; then
81	$LS $SNAPDIR
82	log_fail "BEFORE: $SNAPDIR contains $FILE_COUNT files(s)."
83fi
84
85typeset -i COUNT=10
86
87log_note "Populate the $TESTDIR directory"
88populate_dir $TESTDIR/file $COUNT $NUM_WRITES $BLOCKSZ ITER
89
90FILE_COUNT=`$LS -Al $SNAPDIR | $GREP -v "total 0" | wc -l`
91if [[ $FILE_COUNT -ne 0 ]]; then
92        $LS $SNAPDIR
93        log_fail "AFTER: $SNAPDIR contains $FILE_COUNT files(s)."
94fi
95
96log_pass "The NULL snapshot remains empty."
97