alluxio.worker.netty.BlockReadHandlerTest.java Source code

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Here is the source code for alluxio.worker.netty.BlockReadHandlerTest.java

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/*
 * The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
 * (the "License"). You may not use this work except in compliance with the License, which is
 * available at www.apache.org/licenses/LICENSE-2.0
 *
 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied, as more fully set forth in the License.
 *
 * See the NOTICE file distributed with this work for information regarding copyright ownership.
 */

package alluxio.worker.netty;

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.doNothing;
import static org.mockito.Mockito.anyLong;
import static org.mockito.Mockito.spy;
import static org.mockito.Mockito.when;

import alluxio.EmbeddedNoExceptionChannel;
import alluxio.network.protocol.RPCProtoMessage;
import alluxio.proto.dataserver.Protocol;
import alluxio.proto.status.Status.PStatus;
import alluxio.util.proto.ProtoMessage;
import alluxio.worker.block.BlockWorker;
import alluxio.worker.block.io.BlockReader;
import alluxio.worker.block.io.LocalFileBlockReader;

import io.netty.channel.embedded.EmbeddedChannel;
import io.netty.util.ResourceLeakDetector;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

@RunWith(PowerMockRunner.class)
@PrepareForTest({ LocalFileBlockReader.class })
public final class BlockReadHandlerTest extends ReadHandlerTest {
    private BlockWorker mBlockWorker;
    private BlockReader mBlockReader;

    @Before
    public void before() throws Exception {
        ResourceLeakDetector.setLevel(ResourceLeakDetector.Level.ADVANCED);
        mBlockWorker = mock(BlockWorker.class);
        doNothing().when(mBlockWorker).accessBlock(anyLong(), anyLong());
        mChannel = new EmbeddedChannel(
                new BlockReadHandler(NettyExecutors.BLOCK_READER_EXECUTOR, mBlockWorker, FileTransferType.MAPPED));
        mChannelNoException = new EmbeddedNoExceptionChannel(
                new BlockReadHandler(NettyExecutors.BLOCK_READER_EXECUTOR, mBlockWorker, FileTransferType.MAPPED));
    }

    /**
     * Tests the {@link FileTransferType#TRANSFER} type.
     */
    @Test
    public void transferType() throws Exception {
        mChannel = new EmbeddedChannel(new BlockReadHandler(NettyExecutors.BLOCK_READER_EXECUTOR, mBlockWorker,
                FileTransferType.TRANSFER));

        long fileSize = PACKET_SIZE * 2;
        long checksumExpected = populateInputFile(fileSize, 0, fileSize - 1);

        BlockReader blockReader = spy(mBlockReader);
        // Do not call close here so that we can check result. It will be closed explicitly.
        doNothing().when(blockReader).close();
        when(mBlockWorker.readBlockRemote(anyLong(), anyLong(), anyLong())).thenReturn(blockReader);
        mChannel.writeInbound(buildReadRequest(0, fileSize));
        checkAllReadResponses(mChannel, checksumExpected);
        mBlockReader.close();
    }

    /**
     * Tests read failure.
     */
    @Test
    public void readFailure() throws Exception {
        long fileSize = PACKET_SIZE * 10 + 1;
        populateInputFile(0, 0, fileSize - 1);
        mBlockReader.close();
        mChannelNoException.writeInbound(buildReadRequest(0, fileSize));
        Object response = waitForOneResponse(mChannelNoException);
        checkReadResponse(response, PStatus.FAILED_PRECONDITION);
    }

    @Override
    protected void mockReader(long start) throws Exception {
        mBlockReader = new LocalFileBlockReader(mFile);
        when(mBlockWorker.readBlockRemote(anyLong(), anyLong(), anyLong())).thenReturn(mBlockReader);
    }

    @Override
    protected RPCProtoMessage buildReadRequest(long offset, long len) {
        Protocol.ReadRequest readRequest = Protocol.ReadRequest.newBuilder().setBlockId(1L).setOffset(offset)
                .setLength(len).setPacketSize(PACKET_SIZE).build();
        return new RPCProtoMessage(new ProtoMessage(readRequest), null);
    }
}