/*
    * 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.commons.collections4.bidimap;
  
  import static org.junit.jupiter.api.Assertions.assertSame;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import org.apache.commons.collections4.BidiMap;
  import org.apache.commons.collections4.Unmodifiable;
  import org.apache.commons.collections4.collection.AbstractCollectionTest;
  import org.junit.jupiter.api.Test;
  
  /**
   * JUnit tests.
   *
   * @param <K> the key type.
   * @param <V> the value type.
   */
  public class UnmodifiableBidiMapTest<K, V> extends AbstractBidiMapTest<K, V> {
  
      @Override
      protected int getIterationBehaviour() {
          return AbstractCollectionTest.UNORDERED;
      }
  
      @Override
      public boolean isPutAddSupported() {
          return false;
      }
  
      @Override
      public boolean isPutChangeSupported() {
          return false;
      }
  
      @Override
      public boolean isRemoveSupported() {
          return false;
      }
  
      @Override
      public Map<K, V> makeConfirmedMap() {
          return new HashMap<>();
      }
  
      @Override
      public BidiMap<K, V> makeFullMap() {
          final BidiMap<K, V> bidi = new DualHashBidiMap<>();
          addSampleMappings(bidi);
          return UnmodifiableBidiMap.unmodifiableBidiMap(bidi);
      }
  
      @Override
      public BidiMap<K, V> makeObject() {
          return UnmodifiableBidiMap.unmodifiableBidiMap(new DualHashBidiMap<>());
      }
  
      @Test
      public void testDecorateFactory() {
          final BidiMap<K, V> map = makeFullMap();
          assertSame(map, UnmodifiableBidiMap.unmodifiableBidiMap(map));
  
          assertThrows(NullPointerException.class, () -> UnmodifiableBidiMap.unmodifiableBidiMap(null));
      }
  
      @Test
      public void testUnmodifiable() {
          assertTrue(makeObject() instanceof Unmodifiable);
          assertTrue(makeFullMap() instanceof Unmodifiable);
      }
  
  }