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/*
* Copyright 2014 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.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() {
Counter tt = new Counter();
tt.add(123L);
assertEquals("incorrect number of bytes", 123L, tt.total());
delay(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);
}
}
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