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.arrow.vector.util;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import org.junit.jupiter.api.Test;
  
  public class TestMultiMapWithOrdinal {
  
    @Test
    public void test() {
      MultiMapWithOrdinal<String, String> map = new MultiMapWithOrdinal<>();
  
      map.put("x", "1", false);
      assertEquals(1, map.size());
      map.remove("x", "1");
      assertTrue(map.isEmpty());
      map.put("x", "1", false);
      map.put("x", "2", false);
      map.put("y", "0", false);
      assertEquals(3, map.size());
      assertEquals(2, map.getAll("x").size());
      assertEquals("1", map.getAll("x").stream().findFirst().get());
      assertEquals("1", map.getByOrdinal(0));
      assertEquals("2", map.getByOrdinal(1));
      assertEquals("0", map.getByOrdinal(2));
      assertTrue(map.remove("x", "1"));
      assertFalse(map.remove("x", "1"));
      assertEquals("0", map.getByOrdinal(0));
      assertEquals(2, map.size());
      map.put("x", "3", true);
      assertEquals(1, map.getAll("x").size());
      assertEquals("3", map.getAll("x").stream().findFirst().get());
      map.put("z", "4", false);
      assertEquals(3, map.size());
      map.put("z", "5", false);
      map.put("z", "6", false);
      assertEquals(5, map.size());
      map.removeAll("z");
      assertEquals(2, map.size());
      assertFalse(map.containsKey("z"));
    }
  }
  