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#
24# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
25# Use is subject to license terms.
26. $STF_SUITE/include/libtest.kshlib
27
28################################################################################
29#
30# __stc_assertion_start
31#
32# ID: snapshot_004_pos
33#
34# DESCRIPTION:
35# Create a null snapshot i.e. a snapshot created before file system
36# activity is empty.
37#
38# STRATEGY:
39# 1. Empty a file system
40# 2. Take a snapshot of the empty file system.
41# 3. Populate the file system
42# 4. Verify the snapshot is still empty
43#
44# TESTABILITY: explicit
45#
46# TEST_AUTOMATION_LEVEL: automated
47#
48# CODING_STATUS: COMPLETED (2005-07-04)
49#
50# __stc_assertion_end
51#
52################################################################################
53
54verify_runnable "both"
55
56function cleanup
57{
58	snapexists $SNAPFS
59	[[ $? -eq 0 ]] && \
60		log_must $ZFS destroy $SNAPFS
61
62	[[ -e $TESTDIR ]] && \
63		log_must $RM -rf $TESTDIR/* > /dev/null 2>&1
64}
65
66log_assert "Verify that a snapshot of an empty file system remains empty."
67
68log_onexit cleanup
69
70[[ -n $TESTDIR ]] && \
71    log_must $RM -rf $TESTDIR/* > /dev/null 2>&1
72
73log_must $ZFS snapshot $SNAPFS
74FILE_COUNT=`$LS -Al $SNAPDIR | $GREP -v "total 0" | wc -l`
75if [[ $FILE_COUNT -ne 0 ]]; then
76	$LS $SNAPDIR
77	log_fail "BEFORE: $SNAPDIR contains $FILE_COUNT files(s)."
78fi
79
80typeset -i COUNT=10
81
82log_note "Populate the $TESTDIR directory"
83populate_dir $TESTDIR/file $COUNT $NUM_WRITES $BLOCKSZ ITER
84
85FILE_COUNT=`$LS -Al $SNAPDIR | $GREP -v "total 0" | wc -l`
86if [[ $FILE_COUNT -ne 0 ]]; then
87        $LS $SNAPDIR
88        log_fail "AFTER: $SNAPDIR contains $FILE_COUNT files(s)."
89fi
90
91log_pass "The NULL snapshot remains empty."
92