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/*
* Copyright 2015 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.onosproject.net.statistic;
import org.junit.Before;
import org.junit.Test;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.core.IsNot.not;
/**
* Unit tests for DefaultLoad class.
*/
public class DefaultLoadTest {
@Before
public void reset() {
DefaultLoad.setPollInterval(10);
}
/**
* Tests the default constructor.
*/
@Test
public void testDefaultConstructor() {
DefaultLoad load = new DefaultLoad();
assertThat(load.isValid(), is(false));
assertThat(load.latest(), is(-1L));
assertThat(load.rate(), is(0L));
assertThat(load.time(), is(not(0)));
}
/**
* Tests the current-previous constructor.
*/
@Test
public void testCurrentPreviousConstructor() {
DefaultLoad load = new DefaultLoad(20, 10);
assertThat(load.isValid(), is(true));
assertThat(load.latest(), is(20L));
assertThat(load.rate(), is(1L));
assertThat(load.time(), is(not(0)));
}
/**
* Tests the current-previous-interval constructor.
*/
@Test
public void testCurrentPreviousIntervalConstructor() {
DefaultLoad load = new DefaultLoad(20, 10, 1);
assertThat(load.isValid(), is(true));
assertThat(load.latest(), is(20L));
assertThat(load.rate(), is(10L));
assertThat(load.time(), is(not(0)));
}
/**
* Tests the toString operation.
*/
@Test
public void testToString() {
DefaultLoad load = new DefaultLoad(20, 10);
String s = load.toString();
assertThat(s, containsString("Load{rate=1, latest=20}"));
}
/**
* Tests setting the poll interval.
*/
@Test
public void testSettingPollInterval() {
DefaultLoad.setPollInterval(1);
DefaultLoad load = new DefaultLoad(40, 10);
assertThat(load.rate(), is(30L));
}
}
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