alluxio-master-2.x/core/server/master/src/test/java/alluxio/master/block/BlockMasterTestUtils.java
/*
 * 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.master.block;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThrows;

import alluxio.exception.BlockInfoException;
import alluxio.wire.BlockInfo;
import alluxio.wire.BlockLocation;
import alluxio.wire.WorkerInfo;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;

public class BlockMasterTestUtils {
  public static void verifyBlockOnWorkers(
      BlockMaster blockMaster, long blockId, long blockLength,
      List<WorkerInfo> workers) throws Exception {
    BlockInfo blockInfo = blockMaster.getBlockInfo(blockId);
    assertEquals(blockLength, blockInfo.getLength());
    assertEquals(workers.size(), blockInfo.getLocations().size());

    List<BlockLocation> expectedLocations = new ArrayList<>();
    for (WorkerInfo w : workers) {
      expectedLocations.add(new BlockLocation()
          .setWorkerAddress(w.getAddress())
          .setWorkerId(w.getId())
          .setMediumType("MEM")
          .setTierAlias("MEM"));
    }

    assertEquals(blockLength, blockInfo.getLength());
    assertEquals(expectedLocations.size(), blockInfo.getLocations().size());
    assertEquals(new HashSet<>(expectedLocations), new HashSet<>(blockInfo.getLocations()));
  }

  public static void verifyBlockNotExisting(BlockMaster blockMaster, long blockId) {
    assertThrows(BlockInfoException.class, () -> {
      blockMaster.getBlockInfo(blockId);
    });
  }

  public static WorkerInfo findWorkerInfo(List<WorkerInfo> list, long workerId) {
    for (WorkerInfo worker : list) {
      if (workerId == worker.getId()) {
        return worker;
      }
    }
    throw new AssertionError(String.format(
        "Failed to find workerId %s in the worker list %s", workerId, list));
  }
}
