| /* |
| * 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.hadoop.io.compress.bzip2; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.IOException; |
| import java.util.List; |
| |
| import org.junit.After; |
| import org.junit.Before; |
| import org.junit.Test; |
| |
| import static org.apache.hadoop.io.compress.bzip2.BZip2TextFileWriter.BLOCK_SIZE; |
| import static org.junit.Assert.assertEquals; |
| |
| public final class TestBZip2TextFileWriter { |
| |
| private static final byte[] DELIMITER = new byte[] {'\0'}; |
| |
| private ByteArrayOutputStream rawOut; |
| private BZip2TextFileWriter writer; |
| |
| @Before |
| public void setUp() throws Exception { |
| rawOut = new ByteArrayOutputStream(); |
| writer = new BZip2TextFileWriter(rawOut); |
| } |
| |
| @After |
| public void tearDown() throws Exception { |
| rawOut = null; |
| writer.close(); |
| } |
| |
| @Test |
| public void writingSingleBlockSizeOfData() throws Exception { |
| writer.writeRecord(BLOCK_SIZE, DELIMITER); |
| writer.close(); |
| |
| List<Long> nextBlocks = getNextBlockMarkerOffsets(); |
| assertEquals(0, nextBlocks.size()); |
| } |
| |
| @Test |
| public void justExceedingBeyondBlockSize() throws Exception { |
| writer.writeRecord(BLOCK_SIZE + 1, DELIMITER); |
| writer.close(); |
| |
| List<Long> nextBlocks = getNextBlockMarkerOffsets(); |
| assertEquals(1, nextBlocks.size()); |
| } |
| |
| @Test |
| public void writingTwoBlockSizesOfData() throws Exception { |
| writer.writeRecord(2 * BLOCK_SIZE, DELIMITER); |
| writer.close(); |
| |
| List<Long> nextBlocks = getNextBlockMarkerOffsets(); |
| assertEquals(1, nextBlocks.size()); |
| } |
| |
| @Test |
| public void justExceedingBeyondTwoBlocks() throws Exception { |
| writer.writeRecord(2 * BLOCK_SIZE + 1, DELIMITER); |
| writer.close(); |
| |
| List<Long> nextBlocks = getNextBlockMarkerOffsets(); |
| assertEquals(2, nextBlocks.size()); |
| } |
| |
| private List<Long> getNextBlockMarkerOffsets() throws IOException { |
| ByteArrayInputStream in = new ByteArrayInputStream(rawOut.toByteArray()); |
| return BZip2Utils.getNextBlockMarkerOffsets(in); |
| } |
| } |