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.CollectionSize.ZERO;
020import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEYS;
021import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEY_QUERIES;
022import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUES;
023import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUE_QUERIES;
024import static com.google.common.collect.testing.google.ReflectionFreeAssertThrows.assertThrows;
025
026import com.google.common.annotations.GwtCompatible;
027import com.google.common.collect.Multimap;
028import com.google.common.collect.testing.features.CollectionSize;
029import com.google.common.collect.testing.features.MapFeature;
030import org.junit.Ignore;
031
032/**
033 * Tester for {@link Multimap#containsEntry}.
034 *
035 * @author Louis Wasserman
036 */
037@GwtCompatible
038@Ignore("test runners must not instantiate and run this directly, only via suites we build")
039// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
040@SuppressWarnings("JUnit4ClassUsedInJUnit3")
041public class MultimapContainsEntryTester<K, V>
042    extends AbstractMultimapTester<K, V, Multimap<K, V>> {
043  @CollectionSize.Require(absent = ZERO)
044  public void testContainsEntryYes() {
045    assertTrue(multimap().containsEntry(k0(), v0()));
046  }
047
048  public void testContainsEntryNo() {
049    assertFalse(multimap().containsEntry(k3(), v3()));
050  }
051
052  public void testContainsEntryAgreesWithGet() {
053    for (K k : sampleKeys()) {
054      for (V v : sampleValues()) {
055        assertEquals(multimap().get(k).contains(v), multimap().containsEntry(k, v));
056      }
057    }
058  }
059
060  @CollectionSize.Require(absent = ZERO)
061  @MapFeature.Require({ALLOWS_NULL_KEYS, ALLOWS_NULL_VALUES})
062  public void testContainsEntryNullYes() {
063    initMultimapWithNullKeyAndValue();
064    assertTrue(multimap().containsEntry(null, null));
065  }
066
067  @MapFeature.Require({ALLOWS_NULL_KEY_QUERIES, ALLOWS_NULL_VALUE_QUERIES})
068  public void testContainsEntryNullNo() {
069    assertFalse(multimap().containsEntry(null, null));
070  }
071
072  @MapFeature.Require(absent = ALLOWS_NULL_KEY_QUERIES)
073  public void testContainsEntryNullDisallowedBecauseKeyQueriesDisallowed() {
074    assertThrows(NullPointerException.class, () -> multimap().containsEntry(null, v3()));
075  }
076
077  @MapFeature.Require(absent = ALLOWS_NULL_VALUE_QUERIES)
078  public void testContainsEntryNullDisallowedBecauseValueQueriesDisallowed() {
079    assertThrows(NullPointerException.class, () -> multimap().containsEntry(k3(), null));
080  }
081}