| /** |
| * 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.hdfs.protocol; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.DataInputStream; |
| import java.io.IOException; |
| |
| import static org.junit.Assert.assertTrue; |
| import org.junit.Test; |
| |
| import org.apache.hadoop.io.DataOutputBuffer; |
| |
| public class TestCorruptFileBlocks { |
| |
| /** |
| * Serialize the cfb given, deserialize and return the result. |
| */ |
| static CorruptFileBlocks serializeAndDeserialize(CorruptFileBlocks cfb) |
| throws IOException { |
| DataOutputBuffer buf = new DataOutputBuffer(); |
| cfb.write(buf); |
| |
| byte[] data = buf.getData(); |
| DataInputStream input = new DataInputStream(new ByteArrayInputStream(data)); |
| |
| CorruptFileBlocks result = new CorruptFileBlocks(); |
| result.readFields(input); |
| |
| return result; |
| } |
| |
| /** |
| * Check whether cfb is unchanged after serialization and deserialization. |
| */ |
| static boolean checkSerialize(CorruptFileBlocks cfb) |
| throws IOException { |
| return cfb.equals(serializeAndDeserialize(cfb)); |
| } |
| |
| /** |
| * Test serialization and deserializaton of CorruptFileBlocks. |
| */ |
| @Test |
| public void testSerialization() throws IOException { |
| { |
| CorruptFileBlocks cfb = new CorruptFileBlocks(); |
| assertTrue("cannot serialize empty CFB", checkSerialize(cfb)); |
| } |
| |
| { |
| String[] files = new String[0]; |
| CorruptFileBlocks cfb = new CorruptFileBlocks(files, ""); |
| assertTrue("cannot serialize CFB with empty cookie", checkSerialize(cfb)); |
| } |
| |
| { |
| String[] files = { "a", "bb", "ccc" }; |
| CorruptFileBlocks cfb = new CorruptFileBlocks(files, "test"); |
| assertTrue("cannot serialize CFB", checkSerialize(cfb)); |
| } |
| } |
| } |