/*
 * DSI utilities
 *
 * Copyright (C) 2010-2020 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 <http://www.gnu.org/licenses/>.
 *
 */

package it.unimi.dsi.bits;

import static org.junit.Assert.assertEquals;

import org.junit.Test;

public class RawUtf32TransformationStrategyTest {

	@Test
	public void testGetLong() {
		String s = new String(new char[] { '\u0001', '\u0002' });
		assertEquals(64, TransformationStrategies.rawUtf32().toBitVector(s).length());
		assertEquals(0x200000001L, TransformationStrategies.rawUtf32().toBitVector(s).getLong(0, 64));
		s = new String(new char[] { '\u0001', '\u0002', '\u0003' });
		assertEquals(96, TransformationStrategies.rawUtf32().toBitVector(s).length());
		assertEquals(0x300000002L, TransformationStrategies.rawUtf32().toBitVector(s).getLong(32, 96));
		s = new String(new char[] { '\u0001', '\u0002', '\u0003', '\u0004' });
		assertEquals(128, TransformationStrategies.rawUtf32().toBitVector(s).length());
		assertEquals(0x200000001L, TransformationStrategies.rawUtf32().toBitVector(s).getLong(0, 64));
		assertEquals(0x400000003L, TransformationStrategies.rawUtf32().toBitVector(s).getLong(64, 128));
		s = new String(new char[] { '\u0001', '\u0002', '\u0003', '\u0004' });

		s = new String(new char[] { '\uD800', '\uDC00' });
		assertEquals(32, TransformationStrategies.rawUtf32().length(s));
		assertEquals(0x10000, TransformationStrategies.rawUtf32().toBitVector(s).getLong(0, 32));
	}

}
