StorageAdapter.java

/**
 * 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.hdfs.server.common;

import org.apache.hadoop.hdfs.server.common.Storage.StorageDirectory;
import org.mockito.Mockito;

/**
 * Test methods that need to access package-private parts of
 * Storage
 */
public abstract class StorageAdapter {

  /**
   * Inject and return a spy on a storage directory
   */
  public static StorageDirectory spyOnStorageDirectory(
      Storage s, int idx) {

    StorageDirectory dir = Mockito.spy(s.getStorageDir(idx));
    s.getStorageDirs().set(idx, dir);
    return dir;
  }
}