content: /*
   * 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.kafka.streams.state.internals;
  
  import org.junit.jupiter.api.Test;
  import org.rocksdb.BlockBasedTableConfig;
  import org.rocksdb.Cache;
  import org.rocksdb.LRUCache;
  import org.rocksdb.RocksDB;
  
  import static org.hamcrest.CoreMatchers.nullValue;
  import static org.hamcrest.CoreMatchers.sameInstance;
  import static org.hamcrest.MatcherAssert.assertThat;
  
  public class BlockBasedTableConfigWithAccessibleCacheTest {
  
      static {
          RocksDB.loadLibrary();
      }
  
      @Test
      public void shouldReturnNoBlockCacheIfNoneIsSet() {
          final BlockBasedTableConfigWithAccessibleCache configWithAccessibleCache =
              new BlockBasedTableConfigWithAccessibleCache();
  
          assertThat(configWithAccessibleCache.blockCache(), nullValue());
      }
  
      @Test
      public void shouldSetBlockCacheAndMakeItAccessible() {
          final BlockBasedTableConfigWithAccessibleCache configWithAccessibleCache =
              new BlockBasedTableConfigWithAccessibleCache();
          try (final Cache blockCache = new LRUCache(1024)) {
  
              final BlockBasedTableConfig updatedConfig = configWithAccessibleCache.setBlockCache(blockCache);
  
              assertThat(updatedConfig, sameInstance(configWithAccessibleCache));
              assertThat(configWithAccessibleCache.blockCache(), sameInstance(blockCache));
          }
      }
  }