| /* |
| * Copyright (C) 2013 The Guava Authors |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
| * in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| |
| package com.google.common.collect.testing.google; |
| |
| import static com.google.common.collect.testing.features.CollectionFeature.SUPPORTS_ITERATOR_REMOVE; |
| import static com.google.common.collect.testing.features.CollectionSize.ZERO; |
| import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEYS; |
| import static com.google.common.collect.testing.features.MapFeature.ALLOWS_NULL_KEY_QUERIES; |
| import static com.google.common.collect.testing.features.MapFeature.SUPPORTS_REMOVE; |
| |
| import com.google.common.annotations.GwtCompatible; |
| import com.google.common.collect.Multimap; |
| import com.google.common.collect.testing.features.CollectionFeature; |
| import com.google.common.collect.testing.features.CollectionSize; |
| import com.google.common.collect.testing.features.MapFeature; |
| import java.util.Iterator; |
| import java.util.Map.Entry; |
| import org.junit.Ignore; |
| |
| /** |
| * Tester for {@code Multimap.keySet}. |
| * |
| * @author Louis Wasserman |
| */ |
| @GwtCompatible |
| @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. |
| public class MultimapKeySetTester<K, V> extends AbstractMultimapTester<K, V, Multimap<K, V>> { |
| public void testKeySet() { |
| for (Entry<K, V> entry : getSampleElements()) { |
| assertTrue(multimap().keySet().contains(entry.getKey())); |
| } |
| } |
| |
| @CollectionSize.Require(absent = ZERO) |
| @MapFeature.Require(ALLOWS_NULL_KEYS) |
| public void testKeySetContainsNullKeyPresent() { |
| initMultimapWithNullKey(); |
| assertTrue(multimap().keySet().contains(null)); |
| } |
| |
| @MapFeature.Require(ALLOWS_NULL_KEY_QUERIES) |
| public void testKeySetContainsNullKeyAbsent() { |
| assertFalse(multimap().keySet().contains(null)); |
| } |
| |
| @MapFeature.Require(SUPPORTS_REMOVE) |
| public void testKeySetRemovePropagatesToMultimap() { |
| int key0Count = multimap().get(k0()).size(); |
| assertEquals(key0Count > 0, multimap().keySet().remove(k0())); |
| assertEquals(getNumElements() - key0Count, multimap().size()); |
| assertGet(k0()); |
| } |
| |
| @CollectionSize.Require(absent = ZERO) |
| @CollectionFeature.Require(SUPPORTS_ITERATOR_REMOVE) |
| public void testKeySetIteratorRemove() { |
| int key0Count = multimap().get(k0()).size(); |
| Iterator<K> keyItr = multimap().keySet().iterator(); |
| while (keyItr.hasNext()) { |
| if (keyItr.next().equals(k0())) { |
| keyItr.remove(); |
| } |
| } |
| assertEquals(getNumElements() - key0Count, multimap().size()); |
| assertGet(k0()); |
| } |
| } |