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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements. See the NOTICE file distributed with this
4    * work for additional information regarding copyright ownership. The ASF
5    * licenses this file to you under the Apache License, Version 2.0 (the
6    * "License"); you may not use this file except in compliance with the License.
7    * You may obtain a copy of the License at
8    *
9    * http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
13   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
14   * License for the specific language governing permissions and limitations
15   * under the License.
16   */
17  package org.apache.hadoop.hbase.io.encoding;
18  
19  import static org.junit.Assert.assertEquals;
20  
21  import org.apache.hadoop.hbase.MediumTests;
22  import org.junit.Test;
23  import org.junit.experimental.categories.Category;
24  
25  @Category(MediumTests.class)
26  public class TestBufferedDataBlockEncoder {
27  
28    @Test
29    public void testEnsureSpaceForKey() {
30      BufferedDataBlockEncoder.SeekerState state =
31          new BufferedDataBlockEncoder.SeekerState();
32      for (int i = 1; i <= 65536; ++i) {
33        state.keyLength = i;
34        state.ensureSpaceForKey();
35        state.keyBuffer[state.keyLength - 1] = (byte) ((i - 1) % 0xff);
36        for (int j = 0; j < i - 1; ++j) {
37          // Check that earlier bytes were preserved as the buffer grew.
38          assertEquals((byte) (j % 0xff), state.keyBuffer[j]);
39        }
40      }
41    }
42  
43  }