/*
    * 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.giraph.zk;
  
  import org.apache.giraph.conf.GiraphConstants;
  import org.apache.hadoop.conf.Configuration;
  import org.junit.Test;
  
  import static org.junit.Assert.assertEquals;
  import static org.junit.Assert.assertTrue;
  import static org.junit.Assert.fail;
  
  public class TestZooKeeperManager {
    @Test
    public void testGetBasePath() {
      Configuration conf = new Configuration();
  
      // Default is empty, everything goes in root znode
      assertEquals("Default value for base path should be empty",
          "", ZooKeeperManager.getBasePath(conf));
  
      conf.set(GiraphConstants.BASE_ZNODE_KEY, "/howdy");
      assertEquals("Base path should reflect value of " +
          GiraphConstants.BASE_ZNODE_KEY,
          "/howdy", ZooKeeperManager.getBasePath(conf));
  
      conf.set(GiraphConstants.BASE_ZNODE_KEY, "no_slash");
      try {
        ZooKeeperManager.getBasePath(conf);
        fail("Should not have allowed path without starting slash");
      } catch (IllegalArgumentException iae) {
        assertTrue(iae.getMessage().contains(GiraphConstants.BASE_ZNODE_KEY));
      }
    }
  }