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	"@(#)compress_001_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: compress_001_pos
38#
39# DESCRIPTION:
40# Create two files of exactly the same size. One with compression
41# and one without. Ensure the compressed file is smaller.
42#
43# STRATEGY:
44# Use "zfs set" to turn on compression and create files before
45# and after the set call. The compressed file should be smaller.
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
59typeset OP=create
60
61log_assert "Ensure that compressed files are smaller."
62
63log_note "Ensure compression is off"
64log_must $ZFS set compression=off $TESTPOOL/$TESTFS
65
66log_note "Writing file without compression..."
67log_must $FILE_WRITE -o $OP -f $TESTDIR/$TESTFILE0 -b $BLOCKSZ \
68    -c $NUM_WRITES -d $DATA
69
70log_note "Add compression property to the dataset and write another file"
71log_must $ZFS set compression=on $TESTPOOL/$TESTFS
72
73log_must $FILE_WRITE -o $OP -f $TESTDIR/$TESTFILE1 -b $BLOCKSZ \
74    -c $NUM_WRITES -d $DATA
75
76log_must $SYNC $TESTDIR
77
78FILE0_BLKS=`$DU -k $TESTDIR/$TESTFILE0 | $AWK '{ print $1}'`
79FILE1_BLKS=`$DU -k $TESTDIR/$TESTFILE1 | $AWK '{ print $1}'`
80
81if [[ $FILE0_BLKS -le $FILE1_BLKS ]]; then
82	log_fail "$TESTFILE0 is smaller than $TESTFILE1" \
83			"($FILE0_BLKS <= $FILE1_BLKS)"
84fi
85
86log_pass "$TESTFILE0 is bigger than $TESTFILE1 ($FILE0_BLKS > $FILE1_BLKS)"
87