| /** |
| * 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.util.EnumSet; |
| |
| import static org.junit.Assert.*; |
| import org.junit.Test; |
| import org.apache.hadoop.hdfs.protocol.LayoutVersion.Feature; |
| |
| /** |
| * Test for {@link LayoutVersion} |
| */ |
| public class TestLayoutVersion { |
| |
| /** |
| * Tests to make sure a given layout version supports all the |
| * features from the ancestor |
| */ |
| @Test |
| public void testFeaturesFromAncestorSupported() { |
| for (Feature f : Feature.values()) { |
| validateFeatureList(f); |
| } |
| } |
| |
| /** |
| * Test to make sure 0.20.203 supports delegation token |
| */ |
| @Test |
| public void testRelease203() { |
| assertTrue(LayoutVersion.supports(Feature.DELEGATION_TOKEN, |
| Feature.RESERVED_REL20_203.lv)); |
| } |
| |
| /** |
| * Test to make sure 0.20.204 supports delegation token |
| */ |
| @Test |
| public void testRelease204() { |
| assertTrue(LayoutVersion.supports(Feature.DELEGATION_TOKEN, |
| Feature.RESERVED_REL20_204.lv)); |
| } |
| |
| /** |
| * Given feature {@code f}, ensures the layout version of that feature |
| * supports all the features supported by it's ancestor. |
| */ |
| private void validateFeatureList(Feature f) { |
| int lv = f.lv; |
| int ancestorLV = f.ancestorLV; |
| EnumSet<Feature> ancestorSet = LayoutVersion.map.get(ancestorLV); |
| assertNotNull(ancestorSet); |
| for (Feature feature : ancestorSet) { |
| assertTrue(LayoutVersion.supports(feature, lv)); |
| } |
| } |
| } |