alluxio.worker.grpc.BlockReadHandlerTest.java Source code

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Here is the source code for alluxio.worker.grpc.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.grpc;

import static org.mockito.Matchers.any;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.doNothing;
import static org.mockito.Mockito.anyLong;
import static org.mockito.Mockito.when;

import alluxio.grpc.ReadRequest;
import alluxio.grpc.ReadResponse;
import alluxio.security.authentication.AuthenticatedUserInfo;
import alluxio.worker.block.BlockWorker;
import alluxio.worker.block.io.BlockReader;
import alluxio.worker.block.io.LocalFileBlockReader;

import io.grpc.Status;
import io.grpc.stub.ServerCallStreamObserver;
import io.netty.util.ResourceLeakDetector;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;

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());
        mResponseObserver = Mockito.mock(ServerCallStreamObserver.class);
        Mockito.when(mResponseObserver.isReady()).thenReturn(true);
        doAnswer(args -> {
            mResponseCompleted = true;
            return null;
        }).when(mResponseObserver).onCompleted();
        doAnswer(args -> {
            mResponseCompleted = true;
            mError = args.getArgumentAt(0, Throwable.class);
            return null;
        }).when(mResponseObserver).onError(any(Throwable.class));
        doAnswer((args) -> {
            // make a copy of response data before it is released
            mResponses.add(ReadResponse.parseFrom(args.getArgumentAt(0, ReadResponse.class).toByteString()));
            return null;
        }).when(mResponseObserver).onNext(any(ReadResponse.class));
        mReadHandler = new BlockReadHandler(GrpcExecutors.BLOCK_READER_EXECUTOR, mBlockWorker, mResponseObserver,
                new AuthenticatedUserInfo(), false);
        mReadHandlerNoException = new BlockReadHandler(GrpcExecutors.BLOCK_READER_EXECUTOR, mBlockWorker,
                mResponseObserver, new AuthenticatedUserInfo(), false);
    }

    /**
     * Tests read failure.
     */
    @Test
    public void readFailure() throws Exception {
        long fileSize = CHUNK_SIZE * 10 + 1;
        populateInputFile(0, 0, fileSize - 1);
        mBlockReader.close();
        mReadHandlerNoException.onNext(buildReadRequest(0, fileSize));
        checkErrorCode(mResponseObserver, Status.Code.FAILED_PRECONDITION);
    }

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

    @Override
    protected ReadRequest buildReadRequest(long offset, long len) {
        ReadRequest readRequest = ReadRequest.newBuilder().setBlockId(1L).setOffset(offset).setLength(len)
                .setChunkSize(CHUNK_SIZE).build();
        return readRequest;
    }
}