/*
    * Copyright (C) 2013 The Guava Authors
    *
    * Licensed 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 com.google.common.collect.testing.google;
  
  import static com.google.common.collect.testing.features.CollectionFeature.KNOWN_ORDER;
  import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_ITERATOR_REMOVE;
  import static com.google.common.collect.testing.features.CollectionSize.ONE;
  import static com.google.common.truth.Truth.assertThat;
  
  import com.google.common.annotations.GwtCompatible;
  import com.google.common.collect.Lists;
  import com.google.common.collect.Multimap;
  import com.google.common.collect.testing.features.CollectionFeature;
  import com.google.common.collect.testing.features.CollectionSize;
  
  import java.util.Iterator;
  import java.util.List;
  import java.util.Map;
  
  /**
   * Tester for {@code Multimap.values}.
   *
   * @author Louis Wasserman
   */
  @GwtCompatible
  public class MultimapValuesTester<K, V> extends AbstractMultimapTester<K, V, Multimap<K, V>> {
    public void testValues() {
      List<V> expected = Lists.newArrayList();
      for (Map.Entry<K, V> entry : getSampleElements()) {
        expected.add(entry.getValue());
      }
      assertThat(multimap().values()).has().exactlyAs(expected);
    }
    
    @CollectionFeature.Require(KNOWN_ORDER)
    public void testValuesInOrder() {
      List<V> expected = Lists.newArrayList();
      for (Map.Entry<K, V> entry : getOrderedElements()) {
        expected.add(entry.getValue());
      }
      assertThat(multimap().values()).has().exactlyAs(expected).inOrder();
    }
    
    
    @CollectionFeature.Require(SUPPORTS_ITERATOR_REMOVE)
    @CollectionSize.Require(ONE)
    public void testValuesIteratorRemove() {
      Iterator<V> valuesItr = multimap().values().iterator();
      valuesItr.next();
      valuesItr.remove();
      assertTrue(multimap().isEmpty());
    }
  }