core/src/test/java/org/apache/druid/timeline/partition/NoneShardSpecTest.java

/*
 * 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
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 * specific language governing permissions and limitations
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package org.apache.druid.timeline.partition;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.druid.TestObjectMapper;
import org.junit.Assert;
import org.junit.Test;

import java.io.IOException;

public class NoneShardSpecTest
{
  @Test
  public void testEqualsAndHashCode()
  {
    final ShardSpec one = NoneShardSpec.instance();
    final ShardSpec two = NoneShardSpec.instance();
    Assert.assertEquals(one, two);
    Assert.assertEquals(one.hashCode(), two.hashCode());
  }

  @Test
  public void testSerde() throws Exception
  {
    final NoneShardSpec one = NoneShardSpec.instance();
    ObjectMapper mapper = new TestObjectMapper();
    NoneShardSpec serde1 = mapper.readValue(mapper.writeValueAsString(one), NoneShardSpec.class);
    NoneShardSpec serde2 = mapper.readValue(mapper.writeValueAsString(one), NoneShardSpec.class);

    // Serde should return same object instead of creating new one every time.
    Assert.assertTrue(serde1 == serde2);
    Assert.assertTrue(one == serde1);
  }

  @Test
  public void testPartitionFieldIgnored() throws IOException
  {
    final String jsonStr = "{\"type\": \"none\",\"partitionNum\": 2}";
    ObjectMapper mapper = new TestObjectMapper();
    final ShardSpec noneShardSpec = mapper.readValue(jsonStr, ShardSpec.class);
    Assert.assertEquals(NoneShardSpec.instance(), noneShardSpec);
  }
}