| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.kafka.common.utils; |
| |
| import org.junit.Test; |
| |
| import java.util.zip.Checksum; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| public class Crc32CTest { |
| |
| @Test |
| public void testUpdate() { |
| final byte[] bytes = "Any String you want".getBytes(); |
| final int len = bytes.length; |
| |
| Checksum crc1 = Crc32C.create(); |
| Checksum crc2 = Crc32C.create(); |
| Checksum crc3 = Crc32C.create(); |
| |
| crc1.update(bytes, 0, len); |
| for (int i = 0; i < len; i++) |
| crc2.update(bytes[i]); |
| crc3.update(bytes, 0, len / 2); |
| crc3.update(bytes, len / 2, len - len / 2); |
| |
| assertEquals("Crc values should be the same", crc1.getValue(), crc2.getValue()); |
| assertEquals("Crc values should be the same", crc1.getValue(), crc3.getValue()); |
| } |
| |
| @Test |
| public void testValue() { |
| final byte[] bytes = "Some String".getBytes(); |
| assertEquals(608512271, Crc32C.compute(bytes, 0, bytes.length)); |
| } |
| |
| } |