test.it.unimi.dsi.bits.RawUtf32TransformationStrategyTest Maven / Gradle / Ivy

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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.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));
	}

}