/**
Copyright (C) SYSTAP, LLC DBA Blazegraph 2006-2016. All rights reserved.
Contact:
SYSTAP, LLC DBA Blazegraph
2501 Calvert ST NW #106
Washington, DC 20008
licenses@blazegraph.com
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Created on May 25, 2011
*/
package com.bigdata.io;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import junit.framework.TestCase2;
/**
* Test suite for {@link SliceInputStream}.
*
* @author <a href="mailto:thompsonbry@users.sourceforge.net">Bryan Thompson</a>
* @version $Id$
*/
public class TestSliceInputStream extends TestCase2 {
/**
*
*/
public TestSliceInputStream() {
}
/**
* @param name
*/
public TestSliceInputStream(String name) {
super(name);
}
public void test_ctor_null_arg() {
try {
new SliceInputStream(null, 10);
fail("Expecting: " + IllegalArgumentException.class);
} catch (IllegalArgumentException ex) {
if (log.isInfoEnabled())
log.info("Ignoring expected exception: " + ex);
}
}
public void test_ctor_negative_limit() {
try {
new SliceInputStream(new ByteArrayInputStream(new byte[10]), -1);
fail("Expecting: " + IllegalArgumentException.class);
} catch (IllegalArgumentException ex) {
if (log.isInfoEnabled())
log.info("Ignoring expected exception: " + ex);
}
}
/*
* TODO read(byte[])
*
* TODO read(byte[],off,len)
*/
public void test_slice_read() throws IOException {
final byte[] b = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
final InputStream is = new SliceInputStream(
new ByteArrayInputStream(b), 3/* limit */);
assertEquals(0, is.read());
assertEquals(1, is.read());
assertEquals(2, is.read());
assertEquals(-1, is.read());
}
public void test_slice_read_byteArray() throws IOException {
final byte[] b = new byte[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
final SliceInputStream is = new SliceInputStream(
new ByteArrayInputStream(b), 3/* limit */);
final byte[] a = new byte[3];
// empty read is allowed and reads nothing.
assertEquals(0, is.read(a, 0, 0));
// read 3 bytes is allowed.
assertEquals(3, is.read(a)); // TODO validate args.
assertEquals(new byte[] { 0, 1, 2 }, a);// verify data.
// next byte is not allowed.
assertEquals(-1, is.read());
// empty read is still allowed.
assertEquals(0, is.read(a, 0, 0));
// non-empty read is not allowed.
assertEquals(-1, is.read(a, 0, 1));
}
}