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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.onlab.util;
import com.google.common.testing.EqualsTester;
import org.junit.Test;
import org.onlab.junit.ImmutableClassChecker;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.greaterThan;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.lessThan;
public class FrequencyTest {
private final Frequency frequency1 = Frequency.ofMHz(1000);
private final Frequency sameFrequency1 = Frequency.ofMHz(1000);
private final Frequency frequency2 = Frequency.ofGHz(1000);
private final Frequency sameFrequency2 = Frequency.ofGHz(1000);
private final Frequency moreSameFrequency2 = Frequency.ofTHz(1);
private final Frequency frequency3 = Frequency.ofTHz(193.1);
private final Frequency sameFrequency3 = Frequency.ofGHz(193100);
/**
* Tests immutability of Frequency.
*/
@Test
public void testImmutability() {
ImmutableClassChecker.assertThatClassIsImmutable(Frequency.class);
}
/**
* Tests equality of Frequency instances.
*/
@Test
public void testEquality() {
new EqualsTester()
.addEqualityGroup(frequency1, sameFrequency1)
.addEqualityGroup(frequency2, sameFrequency2, moreSameFrequency2)
.addEqualityGroup(frequency3, sameFrequency3)
.testEquals();
}
/**
* Tests the first object is less than the second object.
*/
@Test
public void testLessThan() {
assertThat(frequency1, is(lessThan(frequency2)));
assertThat(frequency1.isLessThan(frequency2), is(true));
}
@Test
public void testGreaterThan() {
assertThat(frequency2, is(greaterThan(frequency1)));
assertThat(frequency2.isGreaterThan(frequency1), is(true));
}
/**
* Tests add operation of two Frequencies.
*/
@Test
public void testAdd() {
Frequency low = Frequency.ofMHz(100);
Frequency high = Frequency.ofGHz(1);
Frequency expected = Frequency.ofMHz(1100);
assertThat(low.add(high), is(expected));
}
/**
* Tests subtract operation of two Frequencies.
*/
@Test
public void testSubtract() {
Frequency high = Frequency.ofGHz(1);
Frequency low = Frequency.ofMHz(100);
Frequency expected = Frequency.ofMHz(900);
assertThat(high.subtract(low), is(expected));
}
/**
* Tests multiply operation of Frequency.
*/
@Test
public void testMultiply() {
Frequency frequency = Frequency.ofMHz(1000);
long factor = 5;
Frequency expected = Frequency.ofGHz(5);
assertThat(frequency.multiply(5), is(expected));
}
}
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