1 /* Copyright 2015 Google Inc. All Rights Reserved. 2 3 Distributed under MIT license. 4 See file LICENSE for detail or copy at https://opensource.org/licenses/MIT 5 */ 6 7 package org.brotli.dec; 8 9 import static org.junit.Assert.assertEquals; 10 11 import java.nio.ByteBuffer; 12 import org.junit.Test; 13 import org.junit.runner.RunWith; 14 import org.junit.runners.JUnit4; 15 16 /** 17 * Tests for {@link Dictionary}. 18 */ 19 @RunWith(JUnit4.class) 20 public class DictionaryTest { 21 crc64(ByteBuffer data)22 private static long crc64(ByteBuffer data) { 23 long crc = -1; 24 for (int i = 0; i < data.capacity(); ++i) { 25 long c = (crc ^ (long) (data.get(i) & 0xFF)) & 0xFF; 26 for (int k = 0; k < 8; k++) { 27 c = (c >>> 1) ^ (-(c & 1L) & -3932672073523589310L); 28 } 29 crc = c ^ (crc >>> 8); 30 } 31 return ~crc; 32 } 33 34 @Test testGetData()35 public void testGetData() { 36 assertEquals(37084801881332636L, crc64(Dictionary.getData())); 37 } 38 } 39