/*
* (C) Copyright 2016 Pantheon Technologies, s.r.o. and others.
*
* 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 org.opendaylight.yangtools.triemap;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertSame;
import java.util.Map;
import java.util.concurrent.ConcurrentMap;
import org.junit.Test;
public class TestConcurrentMapPutIfAbsent {
private static final int COUNT = 50 * 1000;
@Test
public void testConcurrentMapPutIfAbsent() {
final ConcurrentMap<Object, Object> map = TrieMap.create();
for (int i = 0; i < COUNT; i++) {
assertNull(map.putIfAbsent(i, i));
assertEquals(Integer.valueOf(i), map.putIfAbsent(i, i));
}
}
@Test
public void testConflictingHash() {
final ZeroHashInt k1 = new ZeroHashInt(1);
final ZeroHashInt k2 = new ZeroHashInt(2);
final ZeroHashInt k3 = new ZeroHashInt(3);
final ZeroHashInt k3dup = new ZeroHashInt(3);
final ZeroHashInt v1 = new ZeroHashInt(4);
final ZeroHashInt v2 = new ZeroHashInt(5);
final ZeroHashInt v3 = new ZeroHashInt(6);
final Map<ZeroHashInt, ZeroHashInt> map = TrieMap.create();
// Pre-populate an LNode
assertNull(map.putIfAbsent(k1, v1));
assertNull(map.putIfAbsent(k2, v2));
assertNull(map.putIfAbsent(k3, v3));
// Check with identical key
assertSame(v3, map.putIfAbsent(k3, v3));
// Check with equivalent key
assertSame(v3, map.putIfAbsent(k3dup, v3));
}
}