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.master.backcompat.ops;
  
  import alluxio.AlluxioURI;
  import alluxio.annotation.SuppressFBWarnings;
  import alluxio.client.file.FileSystem;
  import alluxio.master.backcompat.FsTestOp;
  
  import org.junit.Assert;
  
  import java.io.File;
  
  /**
   * Test for mounting and unmounting.
   */
  public final class Mount extends FsTestOp {
    private static final AlluxioURI ALLUXIO_MOUNT_PATH = new AlluxioURI("/mount");
    private static final AlluxioURI ALLUXIO_UNMOUNT_PATH = new AlluxioURI("/unmount");
  
    private static final String LOCAL_FS_MOUNT_DIR = "/tmp/alluxioTest/mount";
    private static final String LOCAL_FS_UNMOUNT_DIR = "/tmp/alluxioTest/unmount";
    // This creates a requirement that /tmp/alluxioMount exists and is readable by the test
    private static final AlluxioURI UFS_MOUNT_PATH = new AlluxioURI(LOCAL_FS_MOUNT_DIR);
    private static final AlluxioURI UFS_UNMOUNT_PATH = new AlluxioURI(LOCAL_FS_UNMOUNT_DIR);
  
    @Override
    @SuppressFBWarnings(
        value = "DMI_HARDCODED_ABSOLUTE_FILENAME",
        justification = "Findbugs doesn't like the use of an absolute path. However, we need one "
            + "here so that generated journals are portable across machines")
    public void apply(FileSystem fs) throws Exception {
      new File(LOCAL_FS_MOUNT_DIR).mkdirs();
      fs.mount(ALLUXIO_MOUNT_PATH, UFS_MOUNT_PATH);
  
      new File(LOCAL_FS_UNMOUNT_DIR).mkdirs();
      fs.mount(ALLUXIO_UNMOUNT_PATH, UFS_UNMOUNT_PATH);
      fs.unmount(ALLUXIO_UNMOUNT_PATH);
    }
  
    @Override
    public void check(FileSystem fs) throws Exception {
      Assert.assertTrue(fs.getStatus(ALLUXIO_MOUNT_PATH).isMountPoint());
      Assert.assertFalse(fs.exists(ALLUXIO_UNMOUNT_PATH));
    }
  }
  