| /** |
| * 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.hbase.regionserver.wal; |
| |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.DataInputStream; |
| import java.io.DataOutputStream; |
| import java.io.IOException; |
| |
| import org.apache.hadoop.hbase.SmallTests; |
| import org.apache.hadoop.hbase.util.Bytes; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| /** |
| * Test our compressor class. |
| */ |
| @Category(SmallTests.class) |
| public class TestCompressor { |
| @BeforeClass |
| public static void setUpBeforeClass() throws Exception { |
| } |
| |
| @Test |
| public void testToShort() { |
| short s = 1; |
| assertEquals(s, Compressor.toShort((byte)0, (byte)1)); |
| s <<= 8; |
| assertEquals(s, Compressor.toShort((byte)1, (byte)0)); |
| } |
| |
| @Test (expected = IllegalArgumentException.class) |
| public void testNegativeToShort() { |
| Compressor.toShort((byte)0xff, (byte)0xff); |
| } |
| |
| @Test |
| public void testCompressingWithNullDictionaries() throws IOException { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| DataOutputStream dos = new DataOutputStream(baos); |
| byte [] blahBytes = Bytes.toBytes("blah"); |
| Compressor.writeCompressed(blahBytes, 0, blahBytes.length, dos, null); |
| dos.close(); |
| byte [] dosbytes = baos.toByteArray(); |
| DataInputStream dis = |
| new DataInputStream(new ByteArrayInputStream(dosbytes)); |
| byte [] product = Compressor.readCompressed(dis, null); |
| assertTrue(Bytes.equals(blahBytes, product)); |
| } |
| |
| @Test |
| public void testCompressingWithClearDictionaries() throws IOException { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| DataOutputStream dos = new DataOutputStream(baos); |
| Dictionary dictionary = new LRUDictionary(); |
| byte [] blahBytes = Bytes.toBytes("blah"); |
| Compressor.writeCompressed(blahBytes, 0, blahBytes.length, dos, dictionary); |
| dos.close(); |
| byte [] dosbytes = baos.toByteArray(); |
| DataInputStream dis = |
| new DataInputStream(new ByteArrayInputStream(dosbytes)); |
| dictionary = new LRUDictionary(); |
| byte [] product = Compressor.readCompressed(dis, dictionary); |
| assertTrue(Bytes.equals(blahBytes, product)); |
| } |
| } |