/*
* 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.ringbuffer.impl;
import com.hazelcast.ringbuffer.StaleSequenceException;
import com.hazelcast.test.HazelcastParallelClassRunner;
import com.hazelcast.test.annotation.ParallelTest;
import com.hazelcast.test.annotation.QuickTest;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.runner.RunWith;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
@RunWith(HazelcastParallelClassRunner.class)
@Category({QuickTest.class, ParallelTest.class})
public class ArrayRingbufferTest {
@Test(expected = StaleSequenceException.class)
public void testReadStaleSequenceThrowsException() {
final ArrayRingbuffer rb = fullRingbuffer();
rb.read(rb.headSequence() - 1);
}
@Test(expected = IllegalArgumentException.class)
public void testReadFutureSequenceThrowsException() {
final ArrayRingbuffer rb = fullRingbuffer();
rb.read(rb.tailSequence() + 1);
}
@Test(expected = StaleSequenceException.class)
public void testBlockableReadStaleSequenceThrowsException() {
final ArrayRingbuffer rb = fullRingbuffer();
rb.checkBlockableReadSequence(rb.headSequence() - 1);
}
public void testBlockableReadFutureSequenceOk() {
final ArrayRingbuffer rb = fullRingbuffer();
rb.checkBlockableReadSequence(rb.tailSequence() + 1);
}
@Test(expected = IllegalArgumentException.class)
public void testBlockableReadFutureSequenceThrowsException() {
final ArrayRingbuffer rb = fullRingbuffer();
rb.checkBlockableReadSequence(rb.tailSequence() + 2);
}
@Test
public void testIsEmpty() {
final ArrayRingbuffer rb = new ArrayRingbuffer(5);
assertTrue(rb.isEmpty());
rb.add("");
assertFalse(rb.isEmpty());
}
private static ArrayRingbuffer fullRingbuffer() {
final ArrayRingbuffer rb = new ArrayRingbuffer(5);
for (int i = 0; i < rb.getCapacity(); i++) {
rb.add("");
}
return rb;
}
}