/*
* 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.jctools.channels;
import static org.jctools.channels.OffHeapFixedMessageSizeRingBuffer.EOF;
import static org.jctools.channels.OffHeapFixedMessageSizeRingBuffer.MESSAGE_INDICATOR_SIZE;
import static org.jctools.util.UnsafeAccess.UNSAFE;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertTrue;
public class AbstractOffHeapFixedSizeRingBufferTest {
public static void test(OffHeapFixedMessageSizeRingBuffer rb) {
assertEquals(0, rb.size());
assertTrue(rb.isEmpty());
assertEquals(EOF, rb.readAcquire());
long writeOffset = rb.writeAcquire();
assertNotEquals(EOF, writeOffset);
long fieldOffset = writeOffset+MESSAGE_INDICATOR_SIZE;
UNSAFE.putInt(fieldOffset,1);
UNSAFE.putLong(fieldOffset+4,1);
// blah blah, not writing the rest
rb.writeRelease(writeOffset);
assertEquals(1, rb.size());
assertTrue(!rb.isEmpty());
long readOffset = rb.readAcquire();
fieldOffset = readOffset + MESSAGE_INDICATOR_SIZE;
assertNotEquals(EOF, readOffset);
assertEquals(writeOffset, readOffset);
assertEquals(1, UNSAFE.getInt(fieldOffset));
assertEquals(1L, UNSAFE.getLong(fieldOffset+4));
rb.readRelease(readOffset);
assertEquals(0, rb.size());
assertTrue(rb.isEmpty());
assertEquals(EOF, rb.readAcquire());
}
}