content: /*
   * 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 org.apache.kafka.streams.query;
  
  import org.junit.jupiter.api.Test;
  
  import java.util.HashMap;
  import java.util.HashSet;
  import java.util.Set;
  
  import static org.hamcrest.MatcherAssert.assertThat;
  import static org.hamcrest.Matchers.empty;
  import static org.hamcrest.Matchers.equalTo;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotEquals;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  public class PositionBoundTest {
  
      @Test
      public void shouldCopyPosition() {
          final Position position = Position.emptyPosition();
          final PositionBound positionBound = PositionBound.at(position);
          position.withComponent("topic", 1, 2L);
  
          assertThat(position.getTopics(), equalTo(Set.of("topic")));
          assertThat(positionBound.position().getTopics(), empty());
      }
  
      @Test
      public void unboundedShouldBeUnbounded() {
          final PositionBound bound = PositionBound.unbounded();
          assertTrue(bound.isUnbounded());
      }
  
      @Test
      public void unboundedShouldReturnEmptyPosition() {
          final PositionBound bound = PositionBound.unbounded();
          assertThat(bound.position(), equalTo(Position.emptyPosition()));
      }
  
      @Test
      public void shouldEqualPosition() {
          final PositionBound bound1 = PositionBound.at(Position.emptyPosition());
          final PositionBound bound2 = PositionBound.at(Position.emptyPosition());
          assertEquals(bound1, bound2);
      }
  
      @Test
      public void shouldEqualUnbounded() {
          final PositionBound bound1 = PositionBound.unbounded();
          final PositionBound bound2 = PositionBound.unbounded();
          assertEquals(bound1, bound2);
      }
  
      @Test
      public void shouldEqualSelf() {
          final PositionBound bound1 = PositionBound.at(Position.emptyPosition());
          assertEquals(bound1, bound1);
      }
  
      @Test
      public void shouldNotEqualNull() {
          final PositionBound bound1 = PositionBound.at(Position.emptyPosition());
          assertNotEquals(bound1, null);
      }
  
      @Test
      public void shouldNotHash() {
          final PositionBound bound = PositionBound.at(Position.emptyPosition());
          assertThrows(UnsupportedOperationException.class, bound::hashCode);
  
          // going overboard...
          final HashSet<PositionBound> set = new HashSet<>();
          assertThrows(UnsupportedOperationException.class, () -> set.add(bound));
  
          final HashMap<PositionBound, Integer> map = new HashMap<>();
          assertThrows(UnsupportedOperationException.class, () -> map.put(bound, 5));
      }
  }
  