/** * 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.yarn.util; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.CommonConfigurationKeysPublic; import org.apache.hadoop.net.DNSToSwitchMapping; import org.apache.hadoop.net.ScriptBasedMapping; import org.junit.Assert; import org.junit.Test; public class TestRackResolverScriptBasedMapping { @Test public void testScriptName() { Configuration conf = new Configuration(); conf .setClass( CommonConfigurationKeysPublic. NET_TOPOLOGY_NODE_SWITCH_MAPPING_IMPL_KEY, ScriptBasedMapping.class, DNSToSwitchMapping.class); conf.set(CommonConfigurationKeysPublic.NET_TOPOLOGY_SCRIPT_FILE_NAME_KEY, "testScript"); RackResolver.init(conf); Assert.assertEquals(RackResolver.getDnsToSwitchMapping().toString(), "script-based mapping with script testScript"); } }