| /** |
| * 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 com.twitter.distributedlog.net; |
| |
| import org.apache.bookkeeper.net.DNSToSwitchMapping; |
| import org.junit.Test; |
| |
| import java.util.List; |
| |
| import static org.junit.Assert.*; |
| |
| /** |
| * Test Cases of {@link NetUtils}. |
| */ |
| public class TestNetUtils { |
| |
| static class DNSResolverWithDefaultConstructor implements DNSToSwitchMapping { |
| |
| public DNSResolverWithDefaultConstructor() {} |
| |
| @Override |
| public List<String> resolve(List<String> list) { |
| return list; |
| } |
| |
| @Override |
| public void reloadCachedMappings() { |
| // no-op |
| } |
| } |
| |
| static class DNSResolverWithUnknownConstructor implements DNSToSwitchMapping { |
| |
| public DNSResolverWithUnknownConstructor(int var1, int var2, int var3) {} |
| |
| @Override |
| public List<String> resolve(List<String> list) { |
| return list; |
| } |
| |
| @Override |
| public void reloadCachedMappings() { |
| // no-op |
| } |
| } |
| |
| @Test(timeout = 20000) |
| public void testGetDNSResolverWithOverrides() throws Exception { |
| DNSToSwitchMapping dnsResolver = |
| NetUtils.getDNSResolver(DNSResolverForRacks.class, ""); |
| assertEquals("Should succeed to load " + DNSResolverForRacks.class, |
| dnsResolver.getClass(), DNSResolverForRacks.class); |
| } |
| |
| @Test(timeout = 20000) |
| public void testGetDNSResolverWithDefaultConstructor() throws Exception { |
| DNSToSwitchMapping dnsResolver = |
| NetUtils.getDNSResolver(DNSResolverWithDefaultConstructor.class, ""); |
| assertEquals("Should succeed to load " + DNSResolverWithDefaultConstructor.class, |
| dnsResolver.getClass(), DNSResolverWithDefaultConstructor.class); |
| } |
| |
| @Test(timeout = 20000, expected = RuntimeException.class) |
| public void testGetDNSResolverWithUnknownConstructor() throws Exception { |
| NetUtils.getDNSResolver(DNSResolverWithUnknownConstructor.class, ""); |
| } |
| } |