lucene/core/src/test/org/apache/lucene/search/TestTotalHits.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 KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
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package org.apache.lucene.search;

import com.carrotsearch.randomizedtesting.RandomizedTest;
import org.apache.lucene.util.LuceneTestCase;

public class TestTotalHits extends LuceneTestCase {

  public void testEqualsAndHashcode() {
    TotalHits totalHits1 = randomTotalHits();
    assertFalse(totalHits1.equals(null));
    assertFalse(totalHits1.equals(totalHits1.value));
    assertEquals(totalHits1, totalHits1);
    assertEquals(totalHits1.hashCode(), totalHits1.hashCode());

    TotalHits totalHits2 = new TotalHits(totalHits1.value, totalHits1.relation);
    assertEquals(totalHits1, totalHits2);
    assertEquals(totalHits2, totalHits1);
    assertEquals(totalHits1.hashCode(), totalHits2.hashCode());

    TotalHits totalHits4 = randomTotalHits();
    if (totalHits4.value == totalHits1.value && totalHits4.relation == totalHits1.relation) {
      assertEquals(totalHits1, totalHits4);
      assertEquals(totalHits2, totalHits4);
      assertEquals(totalHits1.hashCode(), totalHits4.hashCode());
      assertEquals(totalHits2.hashCode(), totalHits4.hashCode());
    } else {
      assertNotEquals(totalHits1, totalHits4);
      assertNotEquals(totalHits2, totalHits4);
      assertNotEquals(totalHits1.hashCode(), totalHits4.hashCode());
      assertNotEquals(totalHits2.hashCode(), totalHits4.hashCode());
    }
  }

  private static TotalHits randomTotalHits() {
    long value = RandomizedTest.randomLongBetween(0, Long.MAX_VALUE);
    TotalHits.Relation relation = RandomizedTest.randomFrom(TotalHits.Relation.values());
    return new TotalHits(value, relation);
  }
}