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
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/*
* Copyright 2015 Open Networking Laboratory
*
* Licensed 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.onlab.util;
import org.junit.After;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
import static junit.framework.TestCase.fail;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* Unit tests for the sliding window counter.
*/
@Ignore("Disable these for now because of intermittent load related failures on Jenkins runs.")
public class SlidingWindowCounterTest {
private SlidingWindowCounter counter;
@Before
public void setUp() {
counter = new SlidingWindowCounter(2);
}
@After
public void tearDown() {
counter.destroy();
}
@Test
public void testIncrementCount() {
assertEquals(0, counter.get(1));
assertEquals(0, counter.get(2));
counter.incrementCount();
assertEquals(1, counter.get(1));
assertEquals(1, counter.get(2));
counter.incrementCount(2);
assertEquals(3, counter.get(2));
}
@Test
public void testSlide() {
counter.incrementCount();
counter.advanceHead();
assertEquals(0, counter.get(1));
assertEquals(1, counter.get(2));
counter.incrementCount(2);
assertEquals(2, counter.get(1));
assertEquals(3, counter.get(2));
}
@Test
public void testWrap() {
counter.incrementCount();
counter.advanceHead();
counter.incrementCount(2);
counter.advanceHead();
assertEquals(0, counter.get(1));
assertEquals(2, counter.get(2));
counter.advanceHead();
assertEquals(0, counter.get(1));
assertEquals(0, counter.get(2));
}
@Test
public void testCornerCases() {
try {
counter.get(3);
fail("Exception should have been thrown");
} catch (IllegalArgumentException e) {
assertTrue(true);
}
try {
new SlidingWindowCounter(0);
fail("Exception should have been thrown");
} catch (IllegalArgumentException e) {
assertTrue(true);
}
try {
new SlidingWindowCounter(-1);
fail("Exception should have been thrown");
} catch (IllegalArgumentException e) {
assertTrue(true);
}
}
}
|
