1#! /bin/ksh -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 https://opensource.org/licenses/CDDL-1.0. 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 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# Create a null snapshot i.e. a snapshot created before file system 38# activity is empty. 39# 40# STRATEGY: 41# 1. Empty a file system 42# 2. Take a snapshot of the empty file system. 43# 3. Populate the file system 44# 4. Verify the snapshot is still empty 45# 46 47verify_runnable "both" 48 49function cleanup 50{ 51 snapexists $SNAPFS && log_must zfs destroy $SNAPFS 52 53 [ -e $TESTDIR ] && log_must rm -rf $TESTDIR/* 54} 55 56log_assert "Verify that a snapshot of an empty file system remains empty." 57 58log_onexit cleanup 59 60[ -n $TESTDIR ] && log_must rm -rf $TESTDIR/* 61 62log_must zfs snapshot $SNAPFS 63FILE_COUNT=$(ls -A $SNAPDIR | wc -l) 64if [[ $FILE_COUNT -ne 0 ]]; then 65 ls $SNAPDIR 66 log_fail "BEFORE: $SNAPDIR contains $FILE_COUNT files(s)." 67fi 68 69typeset -i COUNT=10 70 71log_note "Populate the $TESTDIR directory" 72typeset -i i=1 73while [[ $i -lt $COUNT ]]; do 74 log_must file_write -o create -f $TESTDIR/file$i \ 75 -b $BLOCKSZ -c $NUM_WRITES -d $i 76 77 (( i = i + 1 )) 78done 79 80FILE_COUNT=$(ls -A $SNAPDIR | wc -l) 81if [[ $FILE_COUNT -ne 0 ]]; then 82 ls $SNAPDIR 83 log_fail "AFTER: $SNAPDIR contains $FILE_COUNT files(s)." 84fi 85 86log_pass "The NULL snapshot remains empty." 87