| /** |
| * 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.trevni; |
| |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.IOException; |
| import java.nio.ByteBuffer; |
| |
| import org.junit.Test; |
| |
| public class TestBZip2Codec { |
| |
| @Test |
| public void testBZip2CompressionAndDecompression() throws IOException { |
| |
| MetaData meta = new MetaData(); |
| meta.setCodec("bzip2"); |
| Codec codec = Codec.get(meta); |
| |
| //Confirm that the right codec Came back |
| assertTrue(codec instanceof BZip2Codec); |
| |
| //This is 3 times the byte buffer on the BZip2 decompress plus some extra |
| final int inputByteSize = BZip2Codec.DEFAULT_BUFFER_SIZE * 3 + 42; |
| |
| byte[] inputByteArray = new byte[inputByteSize]; |
| |
| //Generate something that will compress well |
| for (int i = 0; i < inputByteSize; i++) { |
| inputByteArray[i] = (byte)(65 + i % 10); |
| } |
| |
| ByteBuffer inputByteBuffer = ByteBuffer.wrap(inputByteArray); |
| |
| ByteBuffer compressedBuffer = codec.compress(inputByteBuffer); |
| |
| //Make sure something returned |
| assertTrue(compressedBuffer.array().length > 0); |
| //Make sure the compressed output is smaller then the original |
| assertTrue(compressedBuffer.array().length < inputByteArray.length); |
| |
| ByteBuffer decompressedBuffer = codec.decompress(compressedBuffer); |
| |
| //The original array should be the same length as the decompressed array |
| assertTrue(decompressedBuffer.array().length == inputByteArray.length); |
| |
| //Every byte in the outputByteArray should equal every byte in the input array |
| byte[] outputByteArray = decompressedBuffer.array(); |
| for (int i = 0; i < inputByteSize; i++) { |
| inputByteArray[i] = outputByteArray[i]; |
| } |
| } |
| } |