content: /*
   * 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.junit.Assert.assertEquals;
  
  import alluxio.AlluxioURI;
  import alluxio.grpc.RequestType;
  import alluxio.proto.dataserver.Protocol;
  import alluxio.underfs.UfsManager;
  import alluxio.underfs.UfsManager.UfsClient;
  import alluxio.underfs.UnderFileSystem;
  import alluxio.underfs.options.CreateOptions;
  import alluxio.util.CommonUtils;
  
  import io.grpc.Status;
  import io.grpc.stub.StreamObserver;
  import org.junit.After;
  import org.junit.Before;
  import org.junit.Test;
  import org.mockito.Mockito;
  
  import java.io.File;
  import java.io.FileInputStream;
  import java.io.FileOutputStream;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.OutputStream;
  
  /**
   * Unit tests for {@link UfsFileWriteHandler}.
   */
  public final class UfsFileWriteHandlerTest extends AbstractWriteHandlerTest {
    private OutputStream mOutputStream;
    /** The file used to hold the data written by the test. */
    private File mFile;
  
    @Before
    public void before() throws Exception {
      mFile = mTestFolder.newFile();
      mOutputStream = new FileOutputStream(mFile);
      UnderFileSystem mockUfs = Mockito.mock(UnderFileSystem.class);
      UfsManager ufsManager = Mockito.mock(UfsManager.class);
      UfsClient ufsClient = new UfsClient(() -> mockUfs, AlluxioURI.EMPTY_URI);
      Mockito.when(ufsManager.get(TEST_MOUNT_ID)).thenReturn(ufsClient);
      Mockito.when(mockUfs.createNonexistingFile(Mockito.anyString(),
          Mockito.any(CreateOptions.class))).thenReturn(mOutputStream)
          .thenReturn(new FileOutputStream(mFile, true));
      mResponseObserver = Mockito.mock(StreamObserver.class);
      mWriteHandler = new UfsFileWriteHandler(ufsManager, mResponseObserver, mUserInfo);
      setupResponseTrigger();
    }
  
    @After
    public void after() throws Exception {
      mOutputStream.close();
    }
  
    @Test
    public void writeFailure() throws Exception {
      mWriteHandler.write(newWriteRequestCommand(0));
      mWriteHandler.write(newWriteRequest(newDataBuffer(CHUNK_SIZE)));
      mOutputStream.close();
      mWriteHandler.write(newWriteRequest(newDataBuffer(CHUNK_SIZE)));
      waitForResponses();
      checkErrorCode(mResponseObserver, Status.Code.UNKNOWN);
    }
  
    @Test
    public void getLocation() throws Exception {
      mWriteHandler.write(newWriteRequestCommand(0));
      CommonUtils.waitFor("location is not null", () -> !"null".equals(mWriteHandler.getLocation()));
      assertEquals("/test", mWriteHandler.getLocation());
    }
  
    @Override
    protected alluxio.grpc.WriteRequest newWriteRequestCommand(long offset) {
      Protocol.CreateUfsFileOptions createUfsFileOptions =
          Protocol.CreateUfsFileOptions.newBuilder().setUfsPath("/test").setOwner("owner")
              .setGroup("group").setMode(0).setMountId(TEST_MOUNT_ID).build();
      return super.newWriteRequestCommand(offset).toBuilder()
          .setCommand(super.newWriteRequestCommand(offset).getCommand().toBuilder()
          .setCreateUfsFileOptions(createUfsFileOptions)).build();
    }
  
    @Override
    protected RequestType getWriteRequestType() {
      return RequestType.UFS_FILE;
    }
  
    @Override
    protected InputStream getWriteDataStream() throws IOException {
      return new FileInputStream(mFile);
    }
  }
  