| /* |
| * 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.nutch.util; |
| |
| import org.apache.hadoop.io.*; |
| import org.apache.hadoop.conf.*; |
| import org.junit.Assert; |
| |
| public class WritableTestUtils { |
| |
| /** Utility method for testing writables. */ |
| public static void testWritable(Writable before) throws Exception { |
| testWritable(before, null); |
| } |
| |
| /** Utility method for testing writables. */ |
| public static void testWritable(Writable before, Configuration conf) |
| throws Exception { |
| Assert.assertEquals(before, writeRead(before, conf)); |
| } |
| |
| /** Utility method for testing writables. */ |
| public static Writable writeRead(Writable before, Configuration conf) |
| throws Exception { |
| |
| DataOutputBuffer dob = new DataOutputBuffer(); |
| before.write(dob); |
| |
| DataInputBuffer dib = new DataInputBuffer(); |
| dib.reset(dob.getData(), dob.getLength()); |
| |
| Writable after = (Writable) before.getClass().getConstructor().newInstance(); |
| if (conf != null) { |
| ((Configurable) after).setConf(conf); |
| } |
| after.readFields(dib); |
| return after; |
| } |
| |
| } |