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.
038@SuppressWarnings("JUnit4ClassUsedInJUnit3")
039public class MultimapContainsEntryTester<K, V>
040    extends AbstractMultimapTester<K, V, Multimap<K, V>> {
041  @CollectionSize.Require(absent = ZERO)
042  public void testContainsEntryYes() {
043    assertTrue(multimap().containsEntry(k0(), v0()));
044  }
045
046  public void testContainsEntryNo() {
047    assertFalse(multimap().containsEntry(k3(), v3()));
048  }
049
050  public void testContainsEntryAgreesWithGet() {
051    for (K k : sampleKeys()) {
052      for (V v : sampleValues()) {
053        assertEquals(multimap().get(k).contains(v), multimap().containsEntry(k, v));
054      }
055    }
056  }
057
058  @CollectionSize.Require(absent = ZERO)
059  @MapFeature.Require({ALLOWS_NULL_KEYS, ALLOWS_NULL_VALUES})
060  public void testContainsEntryNullYes() {
061    initMultimapWithNullKeyAndValue();
062    assertTrue(multimap().containsEntry(null, null));
063  }
064
065  @MapFeature.Require({ALLOWS_NULL_KEY_QUERIES, ALLOWS_NULL_VALUE_QUERIES})
066  public void testContainsEntryNullNo() {
067    assertFalse(multimap().containsEntry(null, null));
068  }
069
070  @MapFeature.Require(absent = ALLOWS_NULL_KEY_QUERIES)
071  public void testContainsEntryNullDisallowedBecauseKeyQueriesDisallowed() {
072    try {
073      multimap().containsEntry(null, v3());
074      fail("Expected NullPointerException");
075    } catch (NullPointerException expected) {
076      // success
077    }
078  }
079
080  @MapFeature.Require(absent = ALLOWS_NULL_VALUE_QUERIES)
081  public void testContainsEntryNullDisallowedBecauseValueQueriesDisallowed() {
082    try {
083      multimap().containsEntry(k3(), null);
084      fail("Expected NullPointerException");
085    } catch (NullPointerException expected) {
086      // success
087    }
088  }
089}