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      1 /*
      2  * Copyright (C) 2012 The Guava Authors
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  * http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.google.common.collect.testing.google;
     18 
     19 import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_ITERATOR_REMOVE;
     20 import static com.google.common.collect.testing.features.CollectionSize.ZERO;
     21 import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_REMOVE;
     22 
     23 import com.google.common.annotations.GwtCompatible;
     24 import com.google.common.collect.testing.features.CollectionFeature;
     25 import com.google.common.collect.testing.features.CollectionSize;
     26 import com.google.common.collect.testing.features.MapFeature;
     27 
     28 import java.util.Iterator;
     29 
     30 /**
     31  * Tester for {@code BiMap.remove}.
     32  *
     33  * @author Louis Wasserman
     34  */
     35 @GwtCompatible
     36 public class BiMapRemoveTester<K, V> extends AbstractBiMapTester<K, V> {
     37   @SuppressWarnings("unchecked")
     38   @MapFeature.Require(SUPPORTS_REMOVE)
     39   @CollectionSize.Require(absent = ZERO)
     40   public void testRemoveKeyRemovesFromInverse() {
     41     getMap().remove(samples.e0.getKey());
     42     expectMissing(samples.e0);
     43   }
     44 
     45   @SuppressWarnings("unchecked")
     46   @MapFeature.Require(SUPPORTS_REMOVE)
     47   @CollectionSize.Require(absent = ZERO)
     48   public void testRemoveKeyFromKeySetRemovesFromInverse() {
     49     getMap().keySet().remove(samples.e0.getKey());
     50     expectMissing(samples.e0);
     51   }
     52 
     53   @SuppressWarnings("unchecked")
     54   @MapFeature.Require(SUPPORTS_REMOVE)
     55   @CollectionSize.Require(absent = ZERO)
     56   public void testRemoveFromValuesRemovesFromInverse() {
     57     getMap().values().remove(samples.e0.getValue());
     58     expectMissing(samples.e0);
     59   }
     60 
     61   @SuppressWarnings("unchecked")
     62   @MapFeature.Require(SUPPORTS_REMOVE)
     63   @CollectionSize.Require(absent = ZERO)
     64   public void testRemoveFromInverseRemovesFromForward() {
     65     getMap().inverse().remove(samples.e0.getValue());
     66     expectMissing(samples.e0);
     67   }
     68 
     69   @SuppressWarnings("unchecked")
     70   @MapFeature.Require(SUPPORTS_REMOVE)
     71   @CollectionSize.Require(absent = ZERO)
     72   public void testRemoveFromInverseKeySetRemovesFromForward() {
     73     getMap().inverse().keySet().remove(samples.e0.getValue());
     74     expectMissing(samples.e0);
     75   }
     76 
     77   @SuppressWarnings("unchecked")
     78   @MapFeature.Require(SUPPORTS_REMOVE)
     79   @CollectionSize.Require(absent = ZERO)
     80   public void testRemoveFromInverseValuesRemovesFromInverse() {
     81     getMap().inverse().values().remove(samples.e0.getKey());
     82     expectMissing(samples.e0);
     83   }
     84 
     85   @CollectionFeature.Require(SUPPORTS_ITERATOR_REMOVE)
     86   @CollectionSize.Require(absent = ZERO)
     87   public void testKeySetIteratorRemove() {
     88     int initialSize = getNumElements();
     89     Iterator<K> iterator = getMap().keySet().iterator();
     90     iterator.next();
     91     iterator.remove();
     92     assertEquals(initialSize - 1, getMap().size());
     93     assertEquals(initialSize - 1, getMap().inverse().size());
     94   }
     95 }
     96