/*
* Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
*
* 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.hazelcast.util.collection;
import com.hazelcast.test.HazelcastParallelClassRunner;
import com.hazelcast.test.annotation.ParallelTest;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.Before;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.Set;
import static org.hamcrest.Matchers.contains;
import static org.hamcrest.Matchers.hasSize;
import static org.junit.Assert.assertThat;
@RunWith(HazelcastParallelClassRunner.class)
@Category({QuickTest.class, ParallelTest.class})
public class InternalListMultiMapTest {
private InternalListMultiMap<Integer, String> multiMap;
@Before
public void setUp() {
this.multiMap = new InternalListMultiMap<Integer, String>();
}
@Test
public void put_whenEmpty_thenInsertItIntoCollection() {
multiMap.put(1, "value");
Collection<String> results = multiMap.get(1);
assertThat(results, hasSize(1));
assertThat(results, contains("value"));
}
@Test
public void put_whenKeyIsAlreadyAssociated_thenAppendItIntoCollection() {
multiMap.put(1, "value");
multiMap.put(1, "value");
Collection<String> results = multiMap.get(1);
assertThat(results, hasSize(2));
assertThat(results, contains("value", "value"));
}
@Test
public void entrySet_whenEmpty_thenReturnEmptySet() {
Set<Map.Entry<Integer, List<String>>> entries = multiMap.entrySet();
assertThat(entries, hasSize(0));
}
}