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/*
* 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");
}
}
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