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#
27# ident	"@(#)snapshot_004_pos.ksh	1.2	07/01/09 SMI"
28#
29. $STF_SUITE/include/libtest.kshlib
30
31################################################################################
32#
33# __stc_assertion_start
34#
35# ID: snapshot_004_pos
36#
37# DESCRIPTION:
38# Create a null snapshot i.e. a snapshot created before file system
39# activity is empty.
40#
41# STRATEGY:
42# 1. Empty a file system
43# 2. Take a snapshot of the empty file system.
44# 3. Populate the file system
45# 4. Verify the snapshot is still empty
46#
47# TESTABILITY: explicit
48#
49# TEST_AUTOMATION_LEVEL: automated
50#
51# CODING_STATUS: COMPLETED (2005-07-04)
52#
53# __stc_assertion_end
54#
55################################################################################
56
57verify_runnable "both"
58
59function cleanup
60{
61	snapexists $SNAPFS
62	[[ $? -eq 0 ]] && \
63		log_must $ZFS destroy $SNAPFS
64
65	[[ -e $TESTDIR ]] && \
66		log_must $RM -rf $TESTDIR/* > /dev/null 2>&1
67}
68
69log_assert "Verify that a snapshot of an empty file system remains empty."
70
71log_onexit cleanup
72
73[[ -n $TESTDIR ]] && \
74    log_must $RM -rf $TESTDIR/* > /dev/null 2>&1
75
76log_must $ZFS snapshot $SNAPFS
77FILE_COUNT=`$LS -Al $SNAPDIR | $GREP -v "total 0" | wc -l`
78if [[ $FILE_COUNT -ne 0 ]]; then
79	$LS $SNAPDIR
80	log_fail "BEFORE: $SNAPDIR contains $FILE_COUNT files(s)."
81fi
82
83typeset -i COUNT=10
84
85log_note "Populate the $TESTDIR directory"
86populate_dir $TESTDIR/file $COUNT $NUM_WRITES $BLOCKSZ ITER
87
88FILE_COUNT=`$LS -Al $SNAPDIR | $GREP -v "total 0" | wc -l`
89if [[ $FILE_COUNT -ne 0 ]]; then
90        $LS $SNAPDIR
91        log_fail "AFTER: $SNAPDIR contains $FILE_COUNT files(s)."
92fi
93
94log_pass "The NULL snapshot remains empty."
95