gerrit.onap Code Review - sdc.git/blob

   1 /*
   2  * Copyright © 2016-2018 European Support Limited
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 package org.openecomp.sdc.logging.context;
  18
  19 import static org.testng.Assert.assertNotNull;
  20
  21 import java.net.InetAddress;
  22 import java.net.UnknownHostException;
  23 import org.easymock.EasyMock;
  24 import org.powermock.api.easymock.PowerMock;
  25 import org.powermock.core.classloader.annotations.PrepareForTest;
  26 import org.powermock.modules.testng.PowerMockTestCase;
  27 import org.testng.annotations.Test;
  28
  29 /**
  30  * Retrieval and caching of host address.
  31  *
  32  * @author evitaliy
  33  * @since 28 Mar 2018
  34  */
  35 @PrepareForTest(InetAddress.class)
  36 public class HostAddressCacheTest extends PowerMockTestCase {
  37
  38     @Test
  39     public void hostAddressIsAlwaysPopulated() {
  40         assertNotNull(new HostAddressCache().get());
  41     }
  42
  43     @Test
  44     public void cachedAddressRemainsTheSameWhenGotWithingRefreshInterval() throws UnknownHostException {
  45         mockInetAddress(1);
  46         HostAddressCache addressCache = new HostAddressCache(1000);
  47         addressCache.get();
  48         addressCache.get();
  49     }
  50
  51     @Test
  52     public void cachedAddressReplacedWhenGotAfterRefreshInterval() throws UnknownHostException {
  53         mockInetAddress(2);
  54         HostAddressCache addressCache = new HostAddressCache(-1);
  55         addressCache.get();
  56         addressCache.get();
  57     }
  58
  59     private void mockInetAddress(int times) throws UnknownHostException {
  60         InetAddress inetAddress = EasyMock.mock(InetAddress.class);
  61         EasyMock.replay(inetAddress);
  62         PowerMock.mockStatic(InetAddress.class);
  63         //noinspection ResultOfMethodCallIgnored
  64         InetAddress.getLocalHost();
  65         PowerMock.expectLastCall().andReturn(inetAddress).times(times);
  66         PowerMock.replay(InetAddress.class);
  67     }
  68 }