/**
 * 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.hadoop.hdfs.nfs.nfs3;

import static org.junit.Assert.assertTrue;

import java.io.IOException;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hdfs.MiniDFSCluster;
import org.apache.hadoop.hdfs.nfs.mount.Mountd;
import org.apache.hadoop.hdfs.nfs.mount.RpcProgramMountd;
import org.apache.hadoop.nfs.nfs3.Nfs3Constant;
import org.junit.Test;

public class TestExportsTable {
 
  @Test
  public void testExportPoint() throws IOException {
    Configuration config = new Configuration();
    MiniDFSCluster cluster = null;

    String exportPoint = "/myexport1";
    config.setStrings(Nfs3Constant.EXPORT_POINT, exportPoint);
    // Use emphral port in case tests are running in parallel
    config.setInt("nfs3.mountd.port", 0);
    config.setInt("nfs3.server.port", 0);
    
    try {
      cluster = new MiniDFSCluster.Builder(config).numDataNodes(1).build();
      cluster.waitActive();

      // Start nfs
      final Nfs3 nfsServer = new Nfs3(config);
      nfsServer.startServiceInternal(false);

      Mountd mountd = nfsServer.getMountd();
      RpcProgramMountd rpcMount = (RpcProgramMountd) mountd.getRpcProgram();
      assertTrue(rpcMount.getExports().size() == 1);

      String exportInMountd = rpcMount.getExports().get(0);
      assertTrue(exportInMountd.equals(exportPoint));

    } finally {
      if (cluster != null) {
        cluster.shutdown();
      }
    }
  }
}