test.it.unimi.dsi.big.util.LongBigArraySignedStringMapTest Maven / Gradle / Ivy

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package it.unimi.dsi.big.util;

/*
 * DSI utilities
 *
 * Copyright (C) 2002-2017 Sebastiano Vigna
 *
 *  This library is free software; you can redistribute it and/or modify it
 *  under the terms of the GNU Lesser General Public License as published by the Free
 *  Software Foundation; either version 3 of the License, or (at your option)
 *  any later version.
 *
 *  This library 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 Lesser General Public License
 *  for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public License
 *  along with this program; if not, see .
 *
 */

import static org.junit.Assert.assertEquals;
import it.unimi.dsi.fastutil.io.BinIO;
import it.unimi.dsi.fastutil.longs.LongBigArrayBigList;
import it.unimi.dsi.fastutil.objects.Object2LongOpenHashMap;

import java.io.File;
import java.io.IOException;
import java.util.Arrays;

import org.junit.Test;

public class LongBigArraySignedStringMapTest {

	@SuppressWarnings("deprecation")
	@Test
	public void testNumbers() throws IOException {

		for(int width = 16; width <= Long.SIZE; width += 8) {
			String[] s = new String[100000];
			long[] v = new long[s.length];
			for(int i = s.length; i-- != 0;) s[(int)(v[i] = i)] = Integer.toString(i);

			// Test with mph
			Object2LongOpenHashMap mph = new Object2LongOpenHashMap<>(s, v);
			final long[][] signatures = LongBigListSignedStringMap.sign(Arrays.asList(s).iterator(), mph);

			LongBigListSignedStringMap map = new LongBigListSignedStringMap(mph, LongBigArrayBigList.wrap(signatures));

			for(int i = s.length; i-- != 0;) assertEquals(i, map.getLong(Integer.toString(i)));
			for(int i = s.length + 100; i-- != s.length;) assertEquals(-1, map.getLong(Integer.toString(i)));

			File temp = File.createTempFile(getClass().getSimpleName(), "test");
			temp.deleteOnExit();

			BinIO.storeLongs(signatures, temp);
			map = new LongBigListSignedStringMap(mph, temp.toString());

			for(int i = s.length; i-- != 0;) assertEquals(i, map.getLong(Integer.toString(i)));
			for(int i = s.length + 10000; i-- != s.length;) assertEquals(-1, map.getLong(Integer.toString(i)));

			temp.delete();

		}
	}

	@SuppressWarnings("deprecation")
	@Test
	public void testSortedNumbers() throws IOException {

		for(int width = 16; width <= Long.SIZE; width += 8) {
			String[] s = new String[100000];
			long[] v = new long[s.length];
			for(int i = s.length; i-- != 0;) s[(int)(v[i] = i)] = Integer.toString(i);

			// Test with mph
			Object2LongOpenHashMap mph = new Object2LongOpenHashMap<>(s, v);

			File temp = File.createTempFile(getClass().getSimpleName(), "test");
			temp.deleteOnExit();

			LongBigListSignedStringMap.sign(Arrays.asList(s).iterator(), temp.toString());
			LongBigListSignedStringMap map = new LongBigListSignedStringMap(mph, temp.toString());

			for(int i = s.length; i-- != 0;) assertEquals(i, map.getLong(Integer.toString(i)));
			for(int i = s.length + 10000; i-- != s.length;) assertEquals(-1, map.getLong(Integer.toString(i)));

			temp.delete();

		}
	}
}