tom | a708318 | 2014-09-25 21:38:03 -0700 | [diff] [blame] | 1 | package org.onlab.util; |
| 2 | |
| 3 | import org.junit.Test; |
| 4 | |
| 5 | import static org.junit.Assert.assertEquals; |
| 6 | import static org.junit.Assert.assertTrue; |
| 7 | import static org.onlab.junit.TestTools.delay; |
| 8 | |
| 9 | /** |
| 10 | * Tests of the Counter utility. |
| 11 | */ |
| 12 | public class CounterTest { |
| 13 | |
| 14 | @Test |
| 15 | public void basics() { |
| 16 | Counter tt = new Counter(); |
| 17 | assertEquals("incorrect number of bytes", 0L, tt.total()); |
| 18 | assertEquals("incorrect throughput", 0.0, tt.throughput(), 0.0001); |
| 19 | tt.add(1234567890L); |
| 20 | assertEquals("incorrect number of bytes", 1234567890L, tt.total()); |
| 21 | assertTrue("incorrect throughput", 1234567890.0 < tt.throughput()); |
| 22 | delay(1500); |
| 23 | tt.add(1L); |
| 24 | assertEquals("incorrect number of bytes", 1234567891L, tt.total()); |
| 25 | assertTrue("incorrect throughput", 1234567891.0 > tt.throughput()); |
| 26 | tt.reset(); |
| 27 | assertEquals("incorrect number of bytes", 0L, tt.total()); |
| 28 | assertEquals("incorrect throughput", 0.0, tt.throughput(), 0.0001); |
| 29 | } |
| 30 | |
| 31 | @Test |
| 32 | public void freeze() { |
| 33 | Counter tt = new Counter(); |
| 34 | tt.add(123L); |
| 35 | assertEquals("incorrect number of bytes", 123L, tt.total()); |
| 36 | delay(1000); |
| 37 | tt.freeze(); |
| 38 | tt.add(123L); |
| 39 | assertEquals("incorrect number of bytes", 123L, tt.total()); |
| 40 | |
| 41 | double d = tt.duration(); |
| 42 | double t = tt.throughput(); |
| 43 | assertEquals("incorrect duration", d, tt.duration(), 0.0001); |
| 44 | assertEquals("incorrect throughput", t, tt.throughput(), 0.0001); |
| 45 | assertEquals("incorrect number of bytes", 123L, tt.total()); |
| 46 | } |
| 47 | |
| 48 | @Test |
| 49 | public void reset() { |
| 50 | Counter tt = new Counter(); |
| 51 | tt.add(123L); |
| 52 | assertEquals("incorrect number of bytes", 123L, tt.total()); |
| 53 | |
| 54 | double d = tt.duration(); |
| 55 | double t = tt.throughput(); |
| 56 | assertEquals("incorrect duration", d, tt.duration(), 0.0001); |
| 57 | assertEquals("incorrect throughput", t, tt.throughput(), 0.0001); |
| 58 | assertEquals("incorrect number of bytes", 123L, tt.total()); |
| 59 | |
| 60 | tt.reset(); |
| 61 | assertEquals("incorrect throughput", 0.0, tt.throughput(), 0.0001); |
| 62 | assertEquals("incorrect number of bytes", 0, tt.total()); |
| 63 | } |
| 64 | |
| 65 | @Test |
| 66 | public void syntheticTracker() { |
| 67 | Counter tt = new Counter(5000, 1000, 6000); |
| 68 | assertEquals("incorrect duration", 1, tt.duration(), 0.1); |
| 69 | assertEquals("incorrect throughput", 1000, tt.throughput(), 1.0); |
| 70 | } |
| 71 | } |