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1   /*
2    *
3    * Licensed to the Apache Software Foundation (ASF) under one
4    * or more contributor license agreements.  See the NOTICE file
5    * distributed with this work for additional information
6    * regarding copyright ownership.  The ASF licenses this file
7    * to you under the Apache License, Version 2.0 (the
8    * "License"); you may not use this file except in compliance
9    * with the License.  You may obtain a copy of the License at
10   *
11   *     http://www.apache.org/licenses/LICENSE-2.0
12   *
13   * Unless required by applicable law or agreed to in writing, software
14   * distributed under the License is distributed on an "AS IS" BASIS,
15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16   * See the License for the specific language governing permissions and
17   * limitations under the License.
18   */
19  package org.apache.hadoop.hbase.util;
20  
21  import junit.framework.TestCase;
22  import org.apache.hadoop.hbase.HBaseTestingUtility;
23  import org.apache.hadoop.hbase.testclassification.MediumTests;
24  import org.apache.hadoop.hbase.security.UserProvider;
25  import org.junit.Test;
26  import org.junit.experimental.categories.Category;
27  
28  @Category({MediumTests.class})
29  public class TestConnectionCache extends TestCase {
30    private static final HBaseTestingUtility UTIL = new HBaseTestingUtility();
31  
32    /**
33     * test for ConnectionCache cleaning expired HConnection
34     */
35    @Test
36    public void testConnectionChore() throws Exception {
37      UTIL.startMiniCluster();
38  
39      //1s for clean interval & 5s for maxIdleTime
40      ConnectionCache cache = new ConnectionCache(UTIL.getConfiguration(),
41          UserProvider.instantiate(UTIL.getConfiguration()), 1000, 5000);
42      ConnectionCache.ConnectionInfo info = cache.getCurrentConnection();
43  
44      assertEquals(false, info.connection.isClosed());
45  
46      Thread.sleep(7000);
47  
48      assertEquals(true, info.connection.isClosed());
49      UTIL.shutdownMiniCluster();
50    }
51  
52  }
53