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;
024
025import com.google.common.annotations.GwtCompatible;
026import com.google.common.collect.Multimap;
027import com.google.common.collect.testing.features.CollectionSize;
028import com.google.common.collect.testing.features.MapFeature;
029import org.junit.Ignore;
030
031/**
032 * Tester for {@link Multimap#containsEntry}.
033 *
034 * @author Louis Wasserman
035 */
036@GwtCompatible
037@Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
038public class MultimapContainsEntryTester<K, V>
039    extends AbstractMultimapTester<K, V, Multimap<K, V>> {
040  @CollectionSize.Require(absent = ZERO)
041  public void testContainsEntryYes() {
042    assertTrue(multimap().containsEntry(k0(), v0()));
043  }
044
045  public void testContainsEntryNo() {
046    assertFalse(multimap().containsEntry(k3(), v3()));
047  }
048
049  public void testContainsEntryAgreesWithGet() {
050    for (K k : sampleKeys()) {
051      for (V v : sampleValues()) {
052        assertEquals(multimap().get(k).contains(v), multimap().containsEntry(k, v));
053      }
054    }
055  }
056
057  @CollectionSize.Require(absent = ZERO)
058  @MapFeature.Require({ALLOWS_NULL_KEYS, ALLOWS_NULL_VALUES})
059  public void testContainsEntryNullYes() {
060    initMultimapWithNullKeyAndValue();
061    assertTrue(multimap().containsEntry(null, null));
062  }
063
064  @MapFeature.Require({ALLOWS_NULL_KEY_QUERIES, ALLOWS_NULL_VALUE_QUERIES})
065  public void testContainsEntryNullNo() {
066    assertFalse(multimap().containsEntry(null, null));
067  }
068
069  @MapFeature.Require(absent = ALLOWS_NULL_KEY_QUERIES)
070  public void testContainsEntryNullDisallowedBecauseKeyQueriesDisallowed() {
071    try {
072      multimap().containsEntry(null, v3());
073      fail("Expected NullPointerException");
074    } catch (NullPointerException expected) {
075      // success
076    }
077  }
078
079  @MapFeature.Require(absent = ALLOWS_NULL_VALUE_QUERIES)
080  public void testContainsEntryNullDisallowedBecauseValueQueriesDisallowed() {
081    try {
082      multimap().containsEntry(k3(), null);
083      fail("Expected NullPointerException");
084    } catch (NullPointerException expected) {
085      // success
086    }
087  }
088}