New upstream version 0.7.2

[mirror_zfs-debian.git] / tests / zfs-tests / tests / functional / compression / compress_002_pos.ksh

diff --git a/tests/zfs-tests/tests/functional/compression/compress_002_pos.ksh b/tests/zfs-tests/tests/functional/compression/compress_002_pos.ksh
new file mode 100755 (executable)
index 0000000..a07d708
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/compression/compress_002_pos.ksh
@@ -0,0 +1,76 @@
+#!/bin/ksh -p
+#
+# CDDL HEADER START
+#
+# The contents of this file are subject to the terms of the
+# Common Development and Distribution License (the "License").
+# You may not use this file except in compliance with the License.
+#
+# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+# or http://www.opensolaris.org/os/licensing.
+# See the License for the specific language governing permissions
+# and limitations under the License.
+#
+# When distributing Covered Code, include this CDDL HEADER in each
+# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+# If applicable, add the following below this CDDL HEADER, with the
+# fields enclosed by brackets "[]" replaced with your own identifying
+# information: Portions Copyright [yyyy] [name of copyright owner]
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
+# Use is subject to license terms.
+#
+
+#
+# Copyright (c) 2013, 2016 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/compression/compress.cfg
+
+#
+# DESCRIPTION:
+# Create two files of exactly the same size. One with compression
+# and one without. Ensure the compressed file is smaller.
+#
+# NOTE: This test uses a dataset rather than a simple file system.
+#
+# STRATEGY:
+# Create a dataset, turn on compression and create files before
+# and after the property change. The compressed file should be smaller.
+#
+
+verify_runnable "both"
+
+typeset OP=create
+
+log_assert "Ensure that compressed files in a dataset are smaller."
+
+log_note "Ensure compression is off"
+log_must zfs set compression=off $TESTPOOL/$TESTCTR
+
+log_note "Writing file without compression..."
+log_must file_write -o $OP -f $TESTDIR1/$TESTFILE0 -b $BLOCKSZ \
+    -c $NUM_WRITES -d $DATA
+
+log_note "Add compression property to the dataset and write another file"
+log_must zfs set compression=on $TESTPOOL/$TESTCTR
+
+log_must file_write -o $OP -f $TESTDIR1/$TESTFILE1 -b $BLOCKSZ \
+    -c $NUM_WRITES -d $DATA
+
+sleep 60
+
+FILE0_BLKS=`du -k $TESTDIR1/$TESTFILE0 | awk '{ print $1}'`
+FILE1_BLKS=`du -k $TESTDIR1/$TESTFILE1 | awk '{ print $1}'`
+
+if [[ $FILE0_BLKS -le $FILE1_BLKS ]]; then
+       log_fail "$TESTFILE0 is smaller than $TESTFILE1" \
+                       "($FILE0_BLKS <= $FILE1_BLKS)"
+fi
+
+log_pass "$TESTFILE0 is bigger than $TESTFILE1 ($FILE0_BLKS > $FILE1_BLKS)"