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: compress_001_pos
33#
34# DESCRIPTION:
35# Create two files of exactly the same size. One with compression
36# and one without. Ensure the compressed file is smaller.
37#
38# STRATEGY:
39# Use "zfs set" to turn on compression and create files before
40# and after the set call. The compressed file should be smaller.
41#
42# TESTABILITY: explicit
43#
44# TEST_AUTOMATION_LEVEL: automated
45#
46# CODING_STATUS: COMPLETED (2005-07-04)
47#
48# __stc_assertion_end
49#
50################################################################################
51
52verify_runnable "both"
53
54typeset OP=create
55
56log_assert "Ensure that compressed files are smaller."
57
58log_note "Ensure compression is off"
59log_must $ZFS set compression=off $TESTPOOL/$TESTFS
60
61log_note "Writing file without compression..."
62log_must $FILE_WRITE -o $OP -f $TESTDIR/$TESTFILE0 -b $BLOCKSZ \
63    -c $NUM_WRITES -d $DATA
64
65log_note "Add compression property to the dataset and write another file"
66log_must $ZFS set compression=on $TESTPOOL/$TESTFS
67
68log_must $FILE_WRITE -o $OP -f $TESTDIR/$TESTFILE1 -b $BLOCKSZ \
69    -c $NUM_WRITES -d $DATA
70
71log_must $SYNC $TESTDIR
72
73FILE0_BLKS=`$DU -k $TESTDIR/$TESTFILE0 | $AWK '{ print $1}'`
74FILE1_BLKS=`$DU -k $TESTDIR/$TESTFILE1 | $AWK '{ print $1}'`
75
76if [[ $FILE0_BLKS -le $FILE1_BLKS ]]; then
77	log_fail "$TESTFILE0 is smaller than $TESTFILE1" \
78			"($FILE0_BLKS <= $FILE1_BLKS)"
79fi
80
81log_pass "$TESTFILE0 is bigger than $TESTFILE1 ($FILE0_BLKS > $FILE1_BLKS)"
82