1/*
2 * Copyright (C) 2012 The Guava Authors
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
5 * in compliance with the License. You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software distributed under the License
10 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
11 * or implied. See the License for the specific language governing permissions and limitations under
12 * the License.
13 */
14
15package com.google.common.collect.testing.google;
16
17import static com.google.common.collect.testing.Helpers.copyToList;
18import static com.google.common.collect.testing.Helpers.copyToSet;
19import static com.google.common.collect.testing.features.CollectionSize.ZERO;
20import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_VALUES;
21import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_PUT;
22
23import com.google.common.annotations.GwtCompatible;
24import com.google.common.collect.SetMultimap;
25import com.google.common.collect.testing.features.CollectionSize;
26import com.google.common.collect.testing.features.MapFeature;
27
28import java.util.List;
29import java.util.Map.Entry;
30import java.util.Set;
31
32/**
33 * Tests for {@link SetMultimap#replaceValues}.
34 *
35 * @author Louis Wasserman
36 */
37@GwtCompatible
38public class SetMultimapPutTester<K, V>
39    extends AbstractMultimapTester<K, V, SetMultimap<K, V>> {
40  // Tests for non-duplicate values are in MultimapPutTester
41
42  @MapFeature.Require(SUPPORTS_PUT)
43  @CollectionSize.Require(absent = ZERO)
44  public void testPutDuplicateValuePreservesSize() {
45    assertFalse(multimap().put(sampleKeys().e0, sampleValues().e0));
46    assertEquals(getNumElements(), multimap().size());
47  }
48
49  @MapFeature.Require(SUPPORTS_PUT)
50  public void testPutDuplicateValue() {
51    List<Entry<K, V>> entries = copyToList(multimap().entries());
52
53    for (Entry<K, V> entry : entries) {
54      resetContainer();
55      K k = entry.getKey();
56      V v = entry.getValue();
57
58      Set<V> values = multimap().get(k);
59      Set<V> expectedValues = copyToSet(values);
60
61      assertFalse(multimap().put(k, v));
62      assertEquals(expectedValues, values);
63      assertGet(k, expectedValues);
64    }
65  }
66
67  @MapFeature.Require({SUPPORTS_PUT, ALLOWS_NULL_VALUES})
68  @CollectionSize.Require(absent = ZERO)
69  public void testPutDuplicateValue_null() {
70    initMultimapWithNullValue();
71    assertFalse(multimap().put(getKeyForNullValue(), null));
72    expectContents(createArrayWithNullValue());
73  }
74}
75