content: /*
   * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
   * (the "License"). You may not use this work except in compliance with the License, which is
   * available at www.apache.org/licenses/LICENSE-2.0
   *
   * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
   * either express or implied, as more fully set forth in the License.
   *
   * See the NOTICE file distributed with this work for information regarding copyright ownership.
   */
  
  package alluxio.wire;
  
  import alluxio.util.CommonUtils;
  
  import com.fasterxml.jackson.databind.ObjectMapper;
  import org.apache.commons.codec.digest.DigestUtils;
  import org.apache.commons.lang3.RandomStringUtils;
  import org.junit.Assert;
  import org.junit.Test;
  
  import java.util.Random;
  
  public class MasterInfoTest {
  
    @Test
    public void json() throws Exception {
      MasterInfo masterInfo = createRandom();
      ObjectMapper mapper = new ObjectMapper();
      MasterInfo other =
          mapper.readValue(mapper.writeValueAsBytes(masterInfo), MasterInfo.class);
      checkEquality(masterInfo, other);
    }
  
    public void checkEquality(MasterInfo a, MasterInfo b) {
      Assert.assertEquals(a.getId(), b.getId());
      Assert.assertEquals(a.getAddress(), b.getAddress());
      Assert.assertEquals(a.getLastUpdatedTime(), b.getLastUpdatedTime());
      Assert.assertEquals(a.getStartTime(), b.getStartTime());
      Assert.assertEquals(a.getGainPrimacyTime(), b.getGainPrimacyTime());
      Assert.assertEquals(a.getLosePrimacyTime(), b.getLosePrimacyTime());
      Assert.assertEquals(a.getLastCheckpointTime(), b.getLastCheckpointTime());
      Assert.assertEquals(a.getJournalEntriesSinceCheckpoint(), b.getJournalEntriesSinceCheckpoint());
      Assert.assertEquals(a.getVersion(), b.getVersion());
      Assert.assertEquals(a.getRevision(), b.getRevision());
      Assert.assertEquals(a, b);
    }
  
    public static MasterInfo createRandom() {
      Random random = new Random();
      long id = random.nextLong();
      Address address = new Address(RandomStringUtils.randomAlphanumeric(10), random.nextInt());
      long lastUpdatedTimeMs = CommonUtils.getCurrentMs();
      long gainPrimacyTimeMs = lastUpdatedTimeMs - random.nextInt(10000);
      long losePrimacyTimeMs = lastUpdatedTimeMs - random.nextInt(10000);
      long startTimeMs = gainPrimacyTimeMs - random.nextInt(10000);
      String version = String.format("%d.%d.%d", random.nextInt(10),
          random.nextInt(20), random.nextInt(10));
      String revision = DigestUtils.sha1Hex(RandomStringUtils.random(10));
      long lastCheckpointTime = startTimeMs + (lastUpdatedTimeMs - startTimeMs) / 2;
      long journalEntriesSinceCheckpoint = random.nextInt(1000);
  
      MasterInfo result = new MasterInfo(id, address);
      result.setLastUpdatedTimeMs(lastUpdatedTimeMs);
      result.setStartTimeMs(startTimeMs);
      result.setGainPrimacyTimeMs(gainPrimacyTimeMs);
      result.setLosePrimacyTimeMs(losePrimacyTimeMs);
      result.setLastCheckpointTimeMs(lastCheckpointTime);
      result.setJournalEntriesSinceCheckpoint(journalEntriesSinceCheckpoint);
      result.setVersion(version);
      result.setRevision(revision);
      return result;
    }
  }
  