CounterTest.java
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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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);
}
}