/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.apache.activemq.artemis.utils;
import java.util.Iterator;
import org.apache.activemq.artemis.utils.collections.ConcurrentHashSet;
import org.apache.activemq.artemis.utils.collections.ConcurrentSet;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
public class ConcurrentHashSetTest extends Assert {
// Constants -----------------------------------------------------
// Attributes ----------------------------------------------------
private ConcurrentSet<String> set;
private String element;
// Static --------------------------------------------------------
// Constructors --------------------------------------------------
// Public --------------------------------------------------------
@Test
public void testAdd() throws Exception {
Assert.assertTrue(set.add(element));
Assert.assertFalse(set.add(element));
}
@Test
public void testAddIfAbsent() throws Exception {
Assert.assertTrue(set.addIfAbsent(element));
Assert.assertFalse(set.addIfAbsent(element));
}
@Test
public void testRemove() throws Exception {
Assert.assertTrue(set.add(element));
Assert.assertTrue(set.remove(element));
Assert.assertFalse(set.remove(element));
}
@Test
public void testContains() throws Exception {
Assert.assertFalse(set.contains(element));
Assert.assertTrue(set.add(element));
Assert.assertTrue(set.contains(element));
Assert.assertTrue(set.remove(element));
Assert.assertFalse(set.contains(element));
}
@Test
public void testSize() throws Exception {
Assert.assertEquals(0, set.size());
Assert.assertTrue(set.add(element));
Assert.assertEquals(1, set.size());
Assert.assertTrue(set.remove(element));
Assert.assertEquals(0, set.size());
}
@Test
public void testClear() throws Exception {
Assert.assertTrue(set.add(element));
Assert.assertTrue(set.contains(element));
set.clear();
Assert.assertFalse(set.contains(element));
}
@Test
public void testIsEmpty() throws Exception {
Assert.assertTrue(set.isEmpty());
Assert.assertTrue(set.add(element));
Assert.assertFalse(set.isEmpty());
set.clear();
Assert.assertTrue(set.isEmpty());
}
@Test
public void testIterator() throws Exception {
set.add(element);
Iterator<String> iterator = set.iterator();
while (iterator.hasNext()) {
String e = iterator.next();
Assert.assertEquals(element, e);
}
}
// TestCase overrides --------------------------------------------
@Before
public void setUp() throws Exception {
set = new ConcurrentHashSet<>();
element = RandomUtil.randomString();
}
// Package protected ---------------------------------------------
// Protected -----------------------------------------------------
// Private -------------------------------------------------------
// Inner classes -------------------------------------------------
}