2 * (C) Copyright 2016 Pantheon Technologies, s.r.o. and others.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package org.opendaylight.yangtools.triemap;
18 import static org.junit.Assert.assertEquals;
19 import static org.junit.Assert.assertNull;
20 import static org.junit.Assert.assertSame;
23 import java.util.concurrent.ConcurrentMap;
24 import org.junit.Test;
26 public class TestConcurrentMapPutIfAbsent {
27 private static final int COUNT = 50*1000;
30 public void testConcurrentMapPutIfAbsent () {
31 final ConcurrentMap<Object, Object> map = new TrieMap<>();
33 for (int i = 0; i < COUNT; i++) {
34 assertNull(map.putIfAbsent (i, i));
35 assertEquals(Integer.valueOf(i), map.putIfAbsent(i, i));
40 public void testConflictingHash() {
41 final ZeroHashInt k1 = new ZeroHashInt(1);
42 final ZeroHashInt k2 = new ZeroHashInt(2);
43 final ZeroHashInt k3 = new ZeroHashInt(3);
44 final ZeroHashInt k3dup = new ZeroHashInt(3);
45 final ZeroHashInt v1 = new ZeroHashInt(4);
46 final ZeroHashInt v2 = new ZeroHashInt(5);
47 final ZeroHashInt v3 = new ZeroHashInt(6);
49 final Map<ZeroHashInt, ZeroHashInt> map = new TrieMap<>();
50 // Pre-populate an LNode
51 assertNull(map.putIfAbsent(k1, v1));
52 assertNull(map.putIfAbsent(k2, v2));
53 assertNull(map.putIfAbsent(k3, v3));
55 // Check with identical key
56 assertSame(v3, map.putIfAbsent(k3, v3));
57 // Check with equivalent key
58 assertSame(v3, map.putIfAbsent(k3dup, v3));