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/*
* Copyright 2014-2015 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.routing.bgp;
import org.hamcrest.Matchers;
import org.junit.Test;
import java.util.ArrayList;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.not;
import static org.junit.Assert.assertThat;
/**
* Unit tests for the BgpRouteEntry.PathSegment class.
*/
public class PathSegmentTest {
/**
* Generates a Path Segment.
*
* @return a generated PathSegment
*/
private BgpRouteEntry.PathSegment generatePathSegment() {
byte pathSegmentType = (byte) BgpConstants.Update.AsPath.AS_SEQUENCE;
ArrayList<Long> segmentAsNumbers = new ArrayList<>();
segmentAsNumbers.add(1L);
segmentAsNumbers.add(2L);
segmentAsNumbers.add(3L);
BgpRouteEntry.PathSegment pathSegment =
new BgpRouteEntry.PathSegment(pathSegmentType, segmentAsNumbers);
return pathSegment;
}
/**
* Tests valid class constructor.
*/
@Test
public void testConstructor() {
BgpRouteEntry.PathSegment pathSegment = generatePathSegment();
String expectedString =
"PathSegment{type=AS_SEQUENCE, segmentAsNumbers=[1, 2, 3]}";
assertThat(pathSegment.toString(), is(expectedString));
}
/**
* Tests invalid class constructor for null Segment AS Numbers.
*/
@Test(expected = NullPointerException.class)
public void testInvalidConstructorNullSegmentAsNumbers() {
byte pathSegmentType = (byte) BgpConstants.Update.AsPath.AS_SEQUENCE;
ArrayList<Long> segmentAsNumbers = null;
new BgpRouteEntry.PathSegment(pathSegmentType, segmentAsNumbers);
}
/**
* Tests getting the fields of a Path Segment.
*/
@Test
public void testGetFields() {
// Create the fields to compare against
byte pathSegmentType = (byte) BgpConstants.Update.AsPath.AS_SEQUENCE;
ArrayList<Long> segmentAsNumbers = new ArrayList<>();
segmentAsNumbers.add(1L);
segmentAsNumbers.add(2L);
segmentAsNumbers.add(3L);
// Generate the entry to test
BgpRouteEntry.PathSegment pathSegment = generatePathSegment();
assertThat(pathSegment.getType(), is(pathSegmentType));
assertThat(pathSegment.getSegmentAsNumbers(), is(segmentAsNumbers));
}
/**
* Tests equality of {@link BgpRouteEntry.PathSegment}.
*/
@Test
public void testEquality() {
BgpRouteEntry.PathSegment pathSegment1 = generatePathSegment();
BgpRouteEntry.PathSegment pathSegment2 = generatePathSegment();
assertThat(pathSegment1, is(pathSegment2));
}
/**
* Tests non-equality of {@link BgpRouteEntry.PathSegment}.
*/
@Test
public void testNonEquality() {
BgpRouteEntry.PathSegment pathSegment1 = generatePathSegment();
// Setup Path Segment 2
byte pathSegmentType = (byte) BgpConstants.Update.AsPath.AS_SEQUENCE;
ArrayList<Long> segmentAsNumbers = new ArrayList<>();
segmentAsNumbers.add(1L);
segmentAsNumbers.add(22L); // Different
segmentAsNumbers.add(3L);
//
BgpRouteEntry.PathSegment pathSegment2 =
new BgpRouteEntry.PathSegment(pathSegmentType, segmentAsNumbers);
assertThat(pathSegment1, Matchers.is(not(pathSegment2)));
}
/**
* Tests object string representation.
*/
@Test
public void testToString() {
BgpRouteEntry.PathSegment pathSegment = generatePathSegment();
String expectedString =
"PathSegment{type=AS_SEQUENCE, segmentAsNumbers=[1, 2, 3]}";
assertThat(pathSegment.toString(), is(expectedString));
}
}
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