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.util.compression;
  
  import static org.junit.Assert.assertArrayEquals;
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  
  import java.io.IOException;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import java.util.concurrent.atomic.AtomicLong;
  
  /**
   * FileUtil for TarUtilsTest and ParallelZipUtilsTest.
   */
  public class FileUtil {
    static void assertDirectoriesEqual(Path path, Path reconstructed) throws Exception {
      AtomicLong pathCount = new AtomicLong(0);
  
      Files.walk(path).forEach(subPath -> {
        Path relative = path.relativize(subPath);
        Path resolved = reconstructed.resolve(relative);
        assertTrue(resolved + " should exist since " + subPath + " exists", Files.exists(resolved));
        assertEquals(subPath.toFile().isFile(), resolved.toFile().isFile());
        if (path.toFile().isFile()) {
          try {
            assertArrayEquals(resolved + " should have the same content as " + subPath,
                Files.readAllBytes(path), Files.readAllBytes(resolved));
          } catch (IOException e) {
            throw new RuntimeException(e);
          }
        }
  
        pathCount.incrementAndGet();
      });
  
      long reconstructedCount = Files.walk(reconstructed).count();
      assertEquals(pathCount.get(), reconstructedCount);
    }
  }
  