10888a09821a98ac0680fad765217302858e70fa4Paul Duffin/*
20888a09821a98ac0680fad765217302858e70fa4Paul Duffin * Copyright (C) 2013 The Guava Authors
30888a09821a98ac0680fad765217302858e70fa4Paul Duffin *
40888a09821a98ac0680fad765217302858e70fa4Paul Duffin * Licensed under the Apache License, Version 2.0 (the "License");
50888a09821a98ac0680fad765217302858e70fa4Paul Duffin * you may not use this file except in compliance with the License.
60888a09821a98ac0680fad765217302858e70fa4Paul Duffin * You may obtain a copy of the License at
70888a09821a98ac0680fad765217302858e70fa4Paul Duffin *
80888a09821a98ac0680fad765217302858e70fa4Paul Duffin * http://www.apache.org/licenses/LICENSE-2.0
90888a09821a98ac0680fad765217302858e70fa4Paul Duffin *
100888a09821a98ac0680fad765217302858e70fa4Paul Duffin * Unless required by applicable law or agreed to in writing, software
110888a09821a98ac0680fad765217302858e70fa4Paul Duffin * distributed under the License is distributed on an "AS IS" BASIS,
120888a09821a98ac0680fad765217302858e70fa4Paul Duffin * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
130888a09821a98ac0680fad765217302858e70fa4Paul Duffin * See the License for the specific language governing permissions and
140888a09821a98ac0680fad765217302858e70fa4Paul Duffin * limitations under the License.
150888a09821a98ac0680fad765217302858e70fa4Paul Duffin */
160888a09821a98ac0680fad765217302858e70fa4Paul Duffin
170888a09821a98ac0680fad765217302858e70fa4Paul Duffinpackage com.google.common.collect.testing.google;
180888a09821a98ac0680fad765217302858e70fa4Paul Duffin
190888a09821a98ac0680fad765217302858e70fa4Paul Duffinimport static com.google.common.collect.testing.features.CollectionSize.ZERO;
200888a09821a98ac0680fad765217302858e70fa4Paul Duffinimport static com.google.common.collect.testing.features.MapFeature.SUPPORTS_REMOVE;
210888a09821a98ac0680fad765217302858e70fa4Paul Duffinimport static org.truth0.Truth.ASSERT;
220888a09821a98ac0680fad765217302858e70fa4Paul Duffin
230888a09821a98ac0680fad765217302858e70fa4Paul Duffinimport com.google.common.annotations.GwtCompatible;
240888a09821a98ac0680fad765217302858e70fa4Paul Duffinimport com.google.common.collect.Multimap;
250888a09821a98ac0680fad765217302858e70fa4Paul Duffinimport com.google.common.collect.testing.features.CollectionSize;
260888a09821a98ac0680fad765217302858e70fa4Paul Duffinimport com.google.common.collect.testing.features.MapFeature;
270888a09821a98ac0680fad765217302858e70fa4Paul Duffin
280888a09821a98ac0680fad765217302858e70fa4Paul Duffinimport java.util.Collection;
290888a09821a98ac0680fad765217302858e70fa4Paul Duffinimport java.util.Map;
300888a09821a98ac0680fad765217302858e70fa4Paul Duffinimport java.util.Map.Entry;
310888a09821a98ac0680fad765217302858e70fa4Paul Duffin
320888a09821a98ac0680fad765217302858e70fa4Paul Duffin/**
330888a09821a98ac0680fad765217302858e70fa4Paul Duffin * Tests for {@link Multimap#clear()}.
340888a09821a98ac0680fad765217302858e70fa4Paul Duffin *
350888a09821a98ac0680fad765217302858e70fa4Paul Duffin * @author Louis Wasserman
360888a09821a98ac0680fad765217302858e70fa4Paul Duffin */
370888a09821a98ac0680fad765217302858e70fa4Paul Duffin@GwtCompatible
380888a09821a98ac0680fad765217302858e70fa4Paul Duffinpublic class MultimapClearTester<K, V> extends AbstractMultimapTester<K, V, Multimap<K, V>> {
390888a09821a98ac0680fad765217302858e70fa4Paul Duffin  @CollectionSize.Require(absent = ZERO)
400888a09821a98ac0680fad765217302858e70fa4Paul Duffin  @MapFeature.Require(absent = SUPPORTS_REMOVE)
410888a09821a98ac0680fad765217302858e70fa4Paul Duffin  public void testClearUnsupported() {
420888a09821a98ac0680fad765217302858e70fa4Paul Duffin    try {
430888a09821a98ac0680fad765217302858e70fa4Paul Duffin      multimap().clear();
440888a09821a98ac0680fad765217302858e70fa4Paul Duffin      fail("Expected UnsupportedOperationException");
450888a09821a98ac0680fad765217302858e70fa4Paul Duffin    } catch (UnsupportedOperationException expected) {}
460888a09821a98ac0680fad765217302858e70fa4Paul Duffin  }
470888a09821a98ac0680fad765217302858e70fa4Paul Duffin
480888a09821a98ac0680fad765217302858e70fa4Paul Duffin  private void assertCleared() {
490888a09821a98ac0680fad765217302858e70fa4Paul Duffin    assertEquals(0, multimap().size());
500888a09821a98ac0680fad765217302858e70fa4Paul Duffin    assertTrue(multimap().isEmpty());
510888a09821a98ac0680fad765217302858e70fa4Paul Duffin    assertEquals(multimap(), getSubjectGenerator().create());
520888a09821a98ac0680fad765217302858e70fa4Paul Duffin    ASSERT.that(multimap().entries()).isEmpty();
530888a09821a98ac0680fad765217302858e70fa4Paul Duffin    ASSERT.that(multimap().asMap()).isEmpty();
540888a09821a98ac0680fad765217302858e70fa4Paul Duffin    ASSERT.that(multimap().keySet()).isEmpty();
550888a09821a98ac0680fad765217302858e70fa4Paul Duffin    ASSERT.that(multimap().keys()).isEmpty();
560888a09821a98ac0680fad765217302858e70fa4Paul Duffin    ASSERT.that(multimap().values()).isEmpty();
570888a09821a98ac0680fad765217302858e70fa4Paul Duffin    for (K key : sampleKeys()) {
580888a09821a98ac0680fad765217302858e70fa4Paul Duffin      assertGet(key);
590888a09821a98ac0680fad765217302858e70fa4Paul Duffin    }
600888a09821a98ac0680fad765217302858e70fa4Paul Duffin  }
610888a09821a98ac0680fad765217302858e70fa4Paul Duffin
620888a09821a98ac0680fad765217302858e70fa4Paul Duffin  @MapFeature.Require(SUPPORTS_REMOVE)
630888a09821a98ac0680fad765217302858e70fa4Paul Duffin  public void testClear() {
640888a09821a98ac0680fad765217302858e70fa4Paul Duffin    multimap().clear();
650888a09821a98ac0680fad765217302858e70fa4Paul Duffin    assertCleared();
660888a09821a98ac0680fad765217302858e70fa4Paul Duffin  }
670888a09821a98ac0680fad765217302858e70fa4Paul Duffin
680888a09821a98ac0680fad765217302858e70fa4Paul Duffin  @MapFeature.Require(SUPPORTS_REMOVE)
690888a09821a98ac0680fad765217302858e70fa4Paul Duffin  public void testClearThroughEntries() {
700888a09821a98ac0680fad765217302858e70fa4Paul Duffin    multimap().entries().clear();
710888a09821a98ac0680fad765217302858e70fa4Paul Duffin    assertCleared();
720888a09821a98ac0680fad765217302858e70fa4Paul Duffin  }
730888a09821a98ac0680fad765217302858e70fa4Paul Duffin
740888a09821a98ac0680fad765217302858e70fa4Paul Duffin  @MapFeature.Require(SUPPORTS_REMOVE)
750888a09821a98ac0680fad765217302858e70fa4Paul Duffin  public void testClearThroughAsMap() {
760888a09821a98ac0680fad765217302858e70fa4Paul Duffin    multimap().asMap().clear();
770888a09821a98ac0680fad765217302858e70fa4Paul Duffin    assertCleared();
780888a09821a98ac0680fad765217302858e70fa4Paul Duffin  }
790888a09821a98ac0680fad765217302858e70fa4Paul Duffin
800888a09821a98ac0680fad765217302858e70fa4Paul Duffin  @MapFeature.Require(SUPPORTS_REMOVE)
810888a09821a98ac0680fad765217302858e70fa4Paul Duffin  public void testClearThroughKeySet() {
820888a09821a98ac0680fad765217302858e70fa4Paul Duffin    multimap().keySet().clear();
830888a09821a98ac0680fad765217302858e70fa4Paul Duffin    assertCleared();
840888a09821a98ac0680fad765217302858e70fa4Paul Duffin  }
850888a09821a98ac0680fad765217302858e70fa4Paul Duffin
860888a09821a98ac0680fad765217302858e70fa4Paul Duffin  @MapFeature.Require(SUPPORTS_REMOVE)
870888a09821a98ac0680fad765217302858e70fa4Paul Duffin  public void testClearThroughKeys() {
880888a09821a98ac0680fad765217302858e70fa4Paul Duffin    multimap().keys().clear();
890888a09821a98ac0680fad765217302858e70fa4Paul Duffin    assertCleared();
900888a09821a98ac0680fad765217302858e70fa4Paul Duffin  }
910888a09821a98ac0680fad765217302858e70fa4Paul Duffin
920888a09821a98ac0680fad765217302858e70fa4Paul Duffin  @MapFeature.Require(SUPPORTS_REMOVE)
930888a09821a98ac0680fad765217302858e70fa4Paul Duffin  public void testClearThroughValues() {
940888a09821a98ac0680fad765217302858e70fa4Paul Duffin    multimap().values().clear();
950888a09821a98ac0680fad765217302858e70fa4Paul Duffin    assertCleared();
960888a09821a98ac0680fad765217302858e70fa4Paul Duffin  }
970888a09821a98ac0680fad765217302858e70fa4Paul Duffin
980888a09821a98ac0680fad765217302858e70fa4Paul Duffin  @MapFeature.Require(SUPPORTS_REMOVE)
990888a09821a98ac0680fad765217302858e70fa4Paul Duffin  @CollectionSize.Require(absent = ZERO)
1000888a09821a98ac0680fad765217302858e70fa4Paul Duffin  public void testClearPropagatesToGet() {
1010888a09821a98ac0680fad765217302858e70fa4Paul Duffin    for (K key : sampleKeys()) {
1020888a09821a98ac0680fad765217302858e70fa4Paul Duffin      resetContainer();
1030888a09821a98ac0680fad765217302858e70fa4Paul Duffin      Collection<V> collection = multimap().get(key);
1040888a09821a98ac0680fad765217302858e70fa4Paul Duffin      multimap().clear();
1050888a09821a98ac0680fad765217302858e70fa4Paul Duffin      ASSERT.that(collection).isEmpty();
1060888a09821a98ac0680fad765217302858e70fa4Paul Duffin    }
1070888a09821a98ac0680fad765217302858e70fa4Paul Duffin  }
1080888a09821a98ac0680fad765217302858e70fa4Paul Duffin
1090888a09821a98ac0680fad765217302858e70fa4Paul Duffin  @MapFeature.Require(SUPPORTS_REMOVE)
1100888a09821a98ac0680fad765217302858e70fa4Paul Duffin  @CollectionSize.Require(absent = ZERO)
1110888a09821a98ac0680fad765217302858e70fa4Paul Duffin  public void testClearPropagatesToAsMapGet() {
1120888a09821a98ac0680fad765217302858e70fa4Paul Duffin    for (K key : sampleKeys()) {
1130888a09821a98ac0680fad765217302858e70fa4Paul Duffin      resetContainer();
1140888a09821a98ac0680fad765217302858e70fa4Paul Duffin      Collection<V> collection = multimap().asMap().get(key);
1150888a09821a98ac0680fad765217302858e70fa4Paul Duffin      if (collection != null) {
1160888a09821a98ac0680fad765217302858e70fa4Paul Duffin        multimap().clear();
1170888a09821a98ac0680fad765217302858e70fa4Paul Duffin        ASSERT.that(collection).isEmpty();
1180888a09821a98ac0680fad765217302858e70fa4Paul Duffin      }
1190888a09821a98ac0680fad765217302858e70fa4Paul Duffin    }
1200888a09821a98ac0680fad765217302858e70fa4Paul Duffin  }
1210888a09821a98ac0680fad765217302858e70fa4Paul Duffin
1220888a09821a98ac0680fad765217302858e70fa4Paul Duffin  @MapFeature.Require(SUPPORTS_REMOVE)
1230888a09821a98ac0680fad765217302858e70fa4Paul Duffin  public void testClearPropagatesToAsMap() {
1240888a09821a98ac0680fad765217302858e70fa4Paul Duffin    Map<K, Collection<V>> asMap = multimap().asMap();
1250888a09821a98ac0680fad765217302858e70fa4Paul Duffin    multimap().clear();
1260888a09821a98ac0680fad765217302858e70fa4Paul Duffin    ASSERT.that(asMap).isEmpty();
1270888a09821a98ac0680fad765217302858e70fa4Paul Duffin  }
1280888a09821a98ac0680fad765217302858e70fa4Paul Duffin
1290888a09821a98ac0680fad765217302858e70fa4Paul Duffin  @MapFeature.Require(SUPPORTS_REMOVE)
1300888a09821a98ac0680fad765217302858e70fa4Paul Duffin  public void testClearPropagatesToEntries() {
1310888a09821a98ac0680fad765217302858e70fa4Paul Duffin    Collection<Entry<K, V>> entries = multimap().entries();
1320888a09821a98ac0680fad765217302858e70fa4Paul Duffin    multimap().clear();
1330888a09821a98ac0680fad765217302858e70fa4Paul Duffin    ASSERT.that(entries).isEmpty();
1340888a09821a98ac0680fad765217302858e70fa4Paul Duffin  }
1350888a09821a98ac0680fad765217302858e70fa4Paul Duffin}
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