| /* |
| * Copyright (C) 2012 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; |
| |
| import static com.google.common.collect.Iterables.getOnlyElement; |
| import static com.google.common.truth.Truth.assertThat; |
| |
| import com.google.common.collect.testing.MapTestSuiteBuilder; |
| import com.google.common.collect.testing.TestStringMapGenerator; |
| 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.Map; |
| import java.util.Map.Entry; |
| import junit.framework.Test; |
| import junit.framework.TestCase; |
| import junit.framework.TestSuite; |
| |
| /** |
| * Tests for {@code CompactHashMap}. |
| * |
| * @author Louis Wasserman |
| */ |
| public class CompactHashMapTest extends TestCase { |
| public static Test suite() { |
| TestSuite suite = new TestSuite(); |
| suite.addTest( |
| MapTestSuiteBuilder.using( |
| new TestStringMapGenerator() { |
| @Override |
| protected Map<String, String> create(Entry<String, String>[] entries) { |
| Map<String, String> map = CompactHashMap.create(); |
| for (Entry<String, String> entry : entries) { |
| map.put(entry.getKey(), entry.getValue()); |
| } |
| return map; |
| } |
| }) |
| .named("CompactHashMap") |
| .withFeatures( |
| CollectionSize.ANY, |
| MapFeature.GENERAL_PURPOSE, |
| MapFeature.ALLOWS_NULL_KEYS, |
| MapFeature.ALLOWS_NULL_VALUES, |
| CollectionFeature.SERIALIZABLE, |
| CollectionFeature.SUPPORTS_ITERATOR_REMOVE) |
| .createTestSuite()); |
| suite.addTestSuite(CompactHashMapTest.class); |
| return suite; |
| } |
| |
| public void testTrimToSize() { |
| CompactHashMap<Integer, String> map = CompactHashMap.createWithExpectedSize(100); |
| for (int i = 0; i < 10; i++) { |
| map.put(i, Integer.toString(i)); |
| } |
| map.trimToSize(); |
| assertThat(map.entries).hasLength(10); |
| assertThat(map.keys).hasLength(10); |
| assertThat(map.values).hasLength(10); |
| assertEquals(10, map.size()); |
| for (int i = 0; i < 10; i++) { |
| assertEquals(Integer.toString(i), map.get(i)); |
| } |
| } |
| |
| public void testEntrySetValueAfterRemoved() { |
| CompactHashMap<Integer, String> map = CompactHashMap.create(); |
| map.put(1, "1"); |
| Entry<Integer, String> entry = getOnlyElement(map.entrySet()); |
| map.remove(1); |
| entry.setValue("one"); |
| assertThat(map).containsEntry(1, "one"); |
| } |
| } |