001/*
002 * Copyright (C) 2012 The Guava Authors
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package com.google.common.collect.testing.google;
018
019import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_REMOVE;
020
021import com.google.common.annotations.GwtCompatible;
022import com.google.common.collect.BiMap;
023import com.google.common.collect.testing.features.MapFeature;
024
025/**
026 * Tester for {@code BiMap.clear}.
027 *
028 * @author Louis Wasserman
029 */
030@GwtCompatible
031public class BiMapClearTester<K, V> extends AbstractBiMapTester<K, V> {
032  @MapFeature.Require(SUPPORTS_REMOVE)
033  public void testClearClearsInverse() {
034    BiMap<V, K> inv = getMap().inverse();
035    getMap().clear();
036    assertTrue(getMap().isEmpty());
037    assertTrue(inv.isEmpty());
038  }
039
040  @MapFeature.Require(SUPPORTS_REMOVE)
041  public void testKeySetClearClearsInverse() {
042    BiMap<V, K> inv = getMap().inverse();
043    getMap().keySet().clear();
044    assertTrue(getMap().isEmpty());
045    assertTrue(inv.isEmpty());
046  }
047
048  @MapFeature.Require(SUPPORTS_REMOVE)
049  public void testValuesClearClearsInverse() {
050    BiMap<V, K> inv = getMap().inverse();
051    getMap().values().clear();
052    assertTrue(getMap().isEmpty());
053    assertTrue(inv.isEmpty());
054  }
055
056  @MapFeature.Require(SUPPORTS_REMOVE)
057  public void testClearInverseClears() {
058    BiMap<V, K> inv = getMap().inverse();
059    inv.clear();
060    assertTrue(getMap().isEmpty());
061    assertTrue(inv.isEmpty());
062  }
063
064  @MapFeature.Require(SUPPORTS_REMOVE)
065  public void testClearInverseKeySetClears() {
066    BiMap<V, K> inv = getMap().inverse();
067    inv.keySet().clear();
068    assertTrue(getMap().isEmpty());
069    assertTrue(inv.isEmpty());
070  }
071
072  @MapFeature.Require(SUPPORTS_REMOVE)
073  public void testClearInverseValuesClears() {
074    BiMap<V, K> inv = getMap().inverse();
075    inv.values().clear();
076    assertTrue(getMap().isEmpty());
077    assertTrue(inv.isEmpty());
078  }
079}