| /** |
| * |
| * 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; |
| |
| import org.apache.hadoop.hbase.testclassification.MiscTests; |
| import org.apache.hadoop.hbase.testclassification.SmallTests; |
| import org.junit.Test; |
| import org.junit.experimental.categories.Category; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import static junit.framework.Assert.assertEquals; |
| |
| @Category({MiscTests.class, SmallTests.class}) |
| public class TestHDFSBlocksDistribution { |
| @Test |
| public void testAddHostsAndBlockWeight() throws Exception { |
| HDFSBlocksDistribution distribution = new HDFSBlocksDistribution(); |
| distribution.addHostsAndBlockWeight(null, 100); |
| assertEquals("Expecting no hosts weights", 0, distribution.getHostAndWeights().size()); |
| distribution.addHostsAndBlockWeight(new String[0], 100); |
| assertEquals("Expecting no hosts weights", 0, distribution.getHostAndWeights().size()); |
| distribution.addHostsAndBlockWeight(new String[] {"test"}, 101); |
| assertEquals("Should be one host", 1, distribution.getHostAndWeights().size()); |
| distribution.addHostsAndBlockWeight(new String[] {"test"}, 202); |
| assertEquals("Should be one host", 1, distribution.getHostAndWeights().size()); |
| assertEquals("test host should have weight 303", 303, |
| distribution.getHostAndWeights().get("test").getWeight()); |
| distribution.addHostsAndBlockWeight(new String[] {"testTwo"}, 222); |
| assertEquals("Should be two hosts", 2, distribution.getHostAndWeights().size()); |
| assertEquals("Total weight should be 525", 525, distribution.getUniqueBlocksTotalWeight()); |
| } |
| |
| public class MockHDFSBlocksDistribution extends HDFSBlocksDistribution { |
| public Map<String,HostAndWeight> getHostAndWeights() { |
| HashMap<String, HostAndWeight> map = new HashMap<String, HostAndWeight>(); |
| map.put("test", new HostAndWeight(null, 100)); |
| return map; |
| } |
| |
| } |
| |
| @Test |
| public void testAdd() throws Exception { |
| HDFSBlocksDistribution distribution = new HDFSBlocksDistribution(); |
| distribution.add(new MockHDFSBlocksDistribution()); |
| assertEquals("Expecting no hosts weights", 0, distribution.getHostAndWeights().size()); |
| distribution.addHostsAndBlockWeight(new String[]{"test"}, 10); |
| assertEquals("Should be one host", 1, distribution.getHostAndWeights().size()); |
| distribution.add(new MockHDFSBlocksDistribution()); |
| assertEquals("Should be one host", 1, distribution.getHostAndWeights().size()); |
| assertEquals("Total weight should be 10", 10, distribution.getUniqueBlocksTotalWeight()); |
| } |
| } |