/*
 * 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.geode.cache.lucene.internal.directory;

import static org.mockito.Mockito.mock;

import java.io.IOException;
import java.nio.file.Path;
import java.util.concurrent.ConcurrentHashMap;

import com.carrotsearch.randomizedtesting.rules.SystemPropertiesRestoreRule;
import org.apache.lucene.store.BaseDirectoryTestCase;
import org.apache.lucene.store.Directory;
import org.junit.Rule;
import org.junit.experimental.categories.Category;

import org.apache.geode.cache.lucene.internal.filesystem.ChunkKey;
import org.apache.geode.cache.lucene.internal.filesystem.File;
import org.apache.geode.cache.lucene.internal.filesystem.FileSystemStats;
import org.apache.geode.test.junit.categories.UnitTest;

/**
 * A unit test of the RegionDirectory class that uses the Directory test case from the lucene code
 * base.
 * 
 * This test is still mocking out the underlying cache, rather than using a real region.
 */
@Category(UnitTest.class)
public class RegionDirectoryJUnitTest extends BaseDirectoryTestCase {

  @Rule
  public SystemPropertiesRestoreRule restoreProps = new SystemPropertiesRestoreRule();

  @Override
  protected Directory getDirectory(Path path) throws IOException {
    final FileSystemStats stats = mock(FileSystemStats.class);

    // This is super lame, but log4j automatically sets the system property, and the lucene
    // test asserts that no system properties have changed. Unfortunately, there is no
    // way to control the order of rules, so we can't clear this property with a rule
    // or @After method. Instead, do it in the close method of the directory.
    return new RegionDirectory(new ConcurrentHashMap<String, File>(),
        new ConcurrentHashMap<ChunkKey, byte[]>(), stats);
  }
}