/**
* 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.hadoop.hbase.util;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.nio.ByteBuffer;
import org.apache.hadoop.hbase.nio.ByteBuff;
import org.apache.hadoop.hbase.testclassification.MiscTests;
import org.apache.hadoop.hbase.testclassification.SmallTests;
import org.junit.Test;
import org.junit.experimental.categories.Category;
@Category({MiscTests.class, SmallTests.class})
public class TestByteBufferArray {
@Test
public void testAsSubBufferWhenEndOffsetLandInLastBuffer() throws Exception {
int capacity = 4 * 1024 * 1024;
ByteBufferAllocator allocator = new ByteBufferAllocator() {
@Override
public ByteBuffer allocate(long size, boolean directByteBuffer)
throws IOException {
if (directByteBuffer) {
return ByteBuffer.allocateDirect((int) size);
} else {
return ByteBuffer.allocate((int) size);
}
}
};
ByteBufferArray array = new ByteBufferArray(capacity, false, allocator);
ByteBuff subBuf = array.asSubByteBuff(0, capacity);
subBuf.position(capacity - 1);// Position to the last byte
assertTrue(subBuf.hasRemaining());
// Read last byte
subBuf.get();
assertFalse(subBuf.hasRemaining());
}
}