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/*
* DSI utilities
*
* Copyright (C) 2010-2023 Sebastiano Vigna
*
* This program and the accompanying materials are made available under the
* terms of the GNU Lesser General Public License v2.1 or later,
* which is available at
* http://www.gnu.org/licenses/old-licenses/lgpl-2.1-standalone.html,
* or the Apache Software License 2.0, which is available at
* https://www.apache.org/licenses/LICENSE-2.0.
*
* 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.
*
* SPDX-License-Identifier: LGPL-2.1-or-later OR Apache-2.0
*/
package it.unimi.dsi.util;
import static org.junit.Assert.assertEquals;
import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.ByteBuffer;
import java.nio.ByteOrder;
import java.nio.channels.FileChannel.MapMode;
import org.junit.Test;
import it.unimi.dsi.fastutil.io.BinIO;
import it.unimi.dsi.fastutil.longs.LongIterators;
@SuppressWarnings("deprecation")
public class ByteBufferLongBigListTest {
@Test
public void testSetGetSmall() {
final ByteBufferLongBigList b = new ByteBufferLongBigList(ByteBuffer.allocate(1000));
b.set(0, 10);
assertEquals(10, b.getLong(0));
}
@Test
public void testSetGetBig() throws IOException {
final File f = File.createTempFile(ByteBufferLongBigListTest.class.getSimpleName(), "buffer");
f.deleteOnExit();
BinIO.storeLongs(LongIterators.fromTo(0, 200000000), f);
final RandomAccessFile c = new RandomAccessFile(f.toString(), "rw");
final ByteBufferLongBigList b = ByteBufferLongBigList.map(c.getChannel(), ByteOrder.BIG_ENDIAN, MapMode.READ_WRITE);
b.set(1, 10);
assertEquals(10, b.getLong(1));
b.set(190000000, 10);
assertEquals(10, b.getLong(190000000));
c.close();
}
}
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