1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
/*
* 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.zookeeper.server.util;
import org.apache.zookeeper.ZKTestCase;
import org.junit.Test;
import org.junit.Assert;
public class BitMapTest extends ZKTestCase {
@Test
public void testAddAndRemove() {
BitMap<String> bitMap = new BitMap<String>();
String v1 = new String("v1");
Integer bit = bitMap.add(v1);
Assert.assertEquals(1, bitMap.size());
Assert.assertTrue(bit >= 0);
Assert.assertEquals(v1, bitMap.get(bit));
Assert.assertEquals(bit, bitMap.getBit(v1));
// add the same value again
Integer newBit = bitMap.add(v1);
Assert.assertEquals(bit, newBit);
Assert.assertEquals(1, bitMap.size());
String v2 = new String("v2");
Integer v2Bit = bitMap.add(v2);
Assert.assertEquals(2, bitMap.size());
Assert.assertNotEquals(v2Bit, bit);
// remove by value
bitMap.remove(v1);
Assert.assertEquals(1, bitMap.size());
Assert.assertNull(bitMap.get(bit));
Assert.assertNull(bitMap.getBit(v1));
// remove by bit
bitMap.remove(v2Bit);
Assert.assertEquals(0, bitMap.size());
Assert.assertNull(bitMap.get(v2Bit));
Assert.assertNull(bitMap.getBit(v2));
}
@Test
public void testBitReuse() {
BitMap<String> bitMap = new BitMap<String>();
int v1Bit = bitMap.add("v1");
int v2Bit = bitMap.add("v2");
int v3Bit = bitMap.add("v3");
bitMap.remove(v2Bit);
int v4Bit = bitMap.add("v4");
Assert.assertEquals(v4Bit, v2Bit);
}
}
|
