View Javadoc

1   /**
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *     http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  package org.apache.hadoop.hbase;
20  
21  import junit.framework.TestCase;
22  
23  import org.apache.hadoop.hbase.testclassification.SmallTests;
24  import org.apache.hadoop.hbase.util.Bytes;
25  import org.junit.experimental.categories.Category;
26  
27  /**
28   * Test comparing HBase objects.
29   */
30  @Category(SmallTests.class)
31  public class TestCompare extends TestCase {
32  
33    /**
34     * Sort of HRegionInfo.
35     */
36    @SuppressWarnings({"SelfComparison"})
37    public void testHRegionInfo() {
38      HRegionInfo a = new HRegionInfo(TableName.valueOf("a"), null, null);
39      HRegionInfo b = new HRegionInfo(TableName.valueOf("b"), null, null);
40      assertTrue(a.compareTo(b) != 0);
41      HTableDescriptor t = new HTableDescriptor(TableName.valueOf("t"));
42      byte [] midway = Bytes.toBytes("midway");
43      a = new HRegionInfo(t.getTableName(), null, midway);
44      b = new HRegionInfo(t.getTableName(), midway, null);
45      assertTrue(a.compareTo(b) < 0);
46      assertTrue(b.compareTo(a) > 0);
47      assertEquals(a, a);
48      assertTrue(a.compareTo(a) == 0);
49      a = new HRegionInfo(t.getTableName(), Bytes.toBytes("a"), Bytes.toBytes("d"));
50      b = new HRegionInfo(t.getTableName(), Bytes.toBytes("e"), Bytes.toBytes("g"));
51      assertTrue(a.compareTo(b) < 0);
52      a = new HRegionInfo(t.getTableName(), Bytes.toBytes("aaaa"), Bytes.toBytes("dddd"));
53      b = new HRegionInfo(t.getTableName(), Bytes.toBytes("e"), Bytes.toBytes("g"));
54      assertTrue(a.compareTo(b) < 0);
55      a = new HRegionInfo(t.getTableName(), Bytes.toBytes("aaaa"), Bytes.toBytes("dddd"));
56      b = new HRegionInfo(t.getTableName(), Bytes.toBytes("aaaa"), Bytes.toBytes("eeee"));
57      assertTrue(a.compareTo(b) < 0);
58    }
59  
60  }
61