| /* |
| * Copyright 2014-present Open Networking Foundation |
| * |
| * 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.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.onlab.junit.TestTools.delay; |
| |
| /** |
| * Tests of the Counter utility. |
| */ |
| public class CounterTest { |
| |
| @Test |
| public void basics() { |
| Counter tt = new Counter(); |
| assertEquals("incorrect number of bytes", 0L, tt.total()); |
| assertEquals("incorrect throughput", 0.0, tt.throughput(), 0.0001); |
| tt.add(1234567890L); |
| assertEquals("incorrect number of bytes", 1234567890L, tt.total()); |
| assertTrue("incorrect throughput", 1234567890.0 < tt.throughput()); |
| delay(1500); |
| tt.add(1L); |
| assertEquals("incorrect number of bytes", 1234567891L, tt.total()); |
| assertTrue("incorrect throughput", 1234567891.0 > tt.throughput()); |
| tt.reset(); |
| assertEquals("incorrect number of bytes", 0L, tt.total()); |
| assertEquals("incorrect throughput", 0.0, tt.throughput(), 0.0001); |
| } |
| |
| @Test |
| public void freeze() { |
| long now = System.currentTimeMillis(); |
| Counter tt = new Counter(now, 123L, now + 1000); |
| tt.freeze(); |
| tt.add(123L); |
| assertEquals("incorrect number of bytes", 123L, tt.total()); |
| |
| double d = tt.duration(); |
| double t = tt.throughput(); |
| assertEquals("incorrect duration", d, tt.duration(), 0.0001); |
| assertEquals("incorrect throughput", t, tt.throughput(), 0.0001); |
| assertEquals("incorrect number of bytes", 123L, tt.total()); |
| } |
| |
| @Test |
| public void reset() { |
| Counter tt = new Counter(); |
| tt.add(123L); |
| assertEquals("incorrect number of bytes", 123L, tt.total()); |
| |
| double d = tt.duration(); |
| double t = tt.throughput(); |
| assertEquals("incorrect duration", d, tt.duration(), 0.0001); |
| assertEquals("incorrect throughput", t, tt.throughput(), 0.0001); |
| assertEquals("incorrect number of bytes", 123L, tt.total()); |
| |
| tt.reset(); |
| assertEquals("incorrect throughput", 0.0, tt.throughput(), 0.0001); |
| assertEquals("incorrect number of bytes", 0, tt.total()); |
| } |
| |
| @Test |
| public void syntheticTracker() { |
| Counter tt = new Counter(5000, 1000, 6000); |
| assertEquals("incorrect duration", 1, tt.duration(), 0.1); |
| assertEquals("incorrect throughput", 1000, tt.throughput(), 1.0); |
| } |
| } |