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1
4 package com.tc.management.stats;
5
6 import java.util.Date  ;
7
8 import com.tc.test.TCTestCase;
9
10 public class AggregateIntegerTest extends TCTestCase {
11
12 private AggregateInteger stat;
13
14 public AggregateIntegerTest() {
15 disableTestUntil("testGetSampleRate", new Date (Long.MAX_VALUE));
16 }
17
18 protected void setUp() throws Exception {
19 stat = new AggregateInteger("Testing statistic");
20 super.setUp();
21 }
22
23 protected void tearDown() throws Exception {
24 stat = null;
25 super.tearDown();
26 }
27
28 public void testGetSampleRate() throws InterruptedException {
29 final String failureExplanation = "Since this is a timing test it is likely that it might fail from time to time on a loaded machine";
30 final long SECOND = 1000;
31 final long HALF_SECOND = SECOND / 2;
32 final long QUARTER_SECOND = SECOND / 4;
33 stat = new AggregateInteger("Testing statistic with history", 10);
34 populate(new int[] { -100, -50, -10, -1, 0, 1, 10, 50, 100, 1000 });
35 populate(new int[] { -100, -50, -10, -1, 0, 1, 10, 50, 100, 1000 });
36 Thread.sleep(900);
37 assertTrue(failureExplanation, stat.getSampleRate(QUARTER_SECOND) >= 2);
38 assertTrue(failureExplanation, stat.getSampleRate(HALF_SECOND) >= 5);
39 assertTrue(failureExplanation, stat.getSampleRate(SECOND) >= 10);
40 }
41
42 public void testGetName() {
43 assertEquals("Testing statistic", stat.getName());
44 }
45
46 public void testGetMaximum() {
47 populate(new int[] { -100, -50, -10, -1, 0, 1, 10, 50, 100 });
48 assertEquals(100, stat.getMaximum());
49 }
50
51 public void testGetMinimum() {
52 populate(new int[] { -100, -50, -10, -1, 0, 1, 10, 50, 100 });
53 assertEquals(-100, stat.getMinimum());
54 }
55
56 public void testGetN() {
57 populate(new int[] { -100, -50, -10, -1, 0, 1, 10, 50, 100 });
58 assertEquals(9, stat.getN());
59 }
60
61 public void testGetSum() {
62 populate(new int[] { -100, -50, -10, -1, 0, 1, 10, 50, 100 });
63 assertEquals(0, stat.getSum());
64 stat.addSample(100);
65 assertEquals(100, stat.getSum());
66 stat.addSample(1000);
67 assertEquals(1100, stat.getSum());
68 }
69
70 public void testGetAverage() {
71 populate(new int[] { -100, -50, -10, -1, 0, 1, 10, 50, 100 });
72 assertEquals(0, (int) stat.getAverage());
73 stat.addSample(10);
74 assertEquals(1, (int) stat.getAverage());
75 stat.reset();
76 assertEquals(0, (int) stat.getAverage());
77 stat.addSample(10);
78 stat.addSample(20);
79 assertEquals(15, (int) stat.getAverage());
80 stat.addSample(0);
81 assertEquals(10, (int) stat.getAverage());
82 }
83
84 private void populate(final int[] samples) {
85 for (int pos = 0; pos < samples.length; ++pos)
86 stat.addSample(samples[pos]);
87 }
88
89 }
90 |
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