alluxio-master-2.x/tests/src/test/java/alluxio/server/ft/journal/JournalReplayIntegrationTest.java
/*
 * 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.server.ft.journal;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;

import alluxio.AlluxioURI;
import alluxio.client.file.FileSystem;
import alluxio.client.file.URIStatus;
import alluxio.conf.PropertyKey;
import alluxio.grpc.DeletePOptions;
import alluxio.master.LocalAlluxioCluster;
import alluxio.testutils.BaseIntegrationTest;
import alluxio.testutils.LocalAlluxioClusterResource;

import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TemporaryFolder;

import java.util.List;

/**
 * Tests which perform master operations, then restart master and verify its state.
 */
public final class JournalReplayIntegrationTest extends BaseIntegrationTest {
  @Rule
  public LocalAlluxioClusterResource mClusterResource =
      new LocalAlluxioClusterResource.Builder()
          .setProperty(PropertyKey.MASTER_JOURNAL_TAILER_SHUTDOWN_QUIET_WAIT_TIME_MS, 0)
          .setNumWorkers(0)
          .build();

  @Rule
  public TemporaryFolder mFolder = new TemporaryFolder();

  private LocalAlluxioCluster mCluster;
  private FileSystem mFs;

  @Before
  public void before() throws Exception {
    mCluster = mClusterResource.get();
    mFs = mCluster.getClient();
  }

  @Test
  public void mountDeleteMount() throws Exception {
    AlluxioURI alluxioPath = new AlluxioURI("/mnt");
    AlluxioURI ufsPath = new AlluxioURI(mFolder.newFolder().getAbsolutePath());
    mFs.mount(alluxioPath, ufsPath);
    mFs.delete(alluxioPath, DeletePOptions.newBuilder().setRecursive(true)
        .setDeleteMountPoint(true)
        .build());
    mFs.mount(alluxioPath, ufsPath);
    mCluster.restartMasters();
    mFs = mCluster.getClient(); // need new client after restart
    List<URIStatus> status = mFs.listStatus(new AlluxioURI("/"));
    assertEquals(1, status.size());
    assertTrue(status.get(0).isMountPoint());
  }
}
