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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.codec.impl;
import java.io.IOException;
import java.io.InputStream;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.onosproject.codec.JsonCodec;
import org.onosproject.core.CoreService;
import org.onosproject.net.Link;
import org.onosproject.net.intent.Constraint;
import org.onosproject.net.intent.constraint.AnnotationConstraint;
import org.onosproject.net.intent.constraint.AsymmetricPathConstraint;
import org.onosproject.net.intent.constraint.BandwidthConstraint;
import org.onosproject.net.intent.constraint.LambdaConstraint;
import org.onosproject.net.intent.constraint.LatencyConstraint;
import org.onosproject.net.intent.constraint.LinkTypeConstraint;
import org.onosproject.net.intent.constraint.ObstacleConstraint;
import org.onosproject.net.intent.constraint.WaypointConstraint;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.node.ObjectNode;
import static com.google.common.base.Preconditions.checkNotNull;
import static org.easymock.EasyMock.createMock;
import static org.easymock.EasyMock.expect;
import static org.easymock.EasyMock.replay;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.hasItem;
import static org.hamcrest.Matchers.hasSize;
import static org.hamcrest.Matchers.instanceOf;
import static org.hamcrest.Matchers.is;
import static org.hamcrest.Matchers.notNullValue;
import static org.onosproject.net.NetTestTools.APP_ID;
import static org.onosproject.net.NetTestTools.did;
/**
* Unit tests for Constraint codec.
*/
public class ConstraintCodecTest {
MockCodecContext context;
JsonCodec<Constraint> constraintCodec;
final CoreService mockCoreService = createMock(CoreService.class);
/**
* Sets up for each test. Creates a context and fetches the flow rule
* codec.
*/
@Before
public void setUp() {
context = new MockCodecContext();
constraintCodec = context.codec(Constraint.class);
assertThat(constraintCodec, notNullValue());
expect(mockCoreService.registerApplication(FlowRuleCodec.REST_APP_ID))
.andReturn(APP_ID).anyTimes();
replay(mockCoreService);
context.registerService(CoreService.class, mockCoreService);
}
/**
* Reads in a constraint from the given resource and decodes it.
*
* @param resourceName resource to use to read the JSON for the constraint
* @return decoded constraint
*/
private Constraint getConstraint(String resourceName) {
InputStream jsonStream = ConstraintCodecTest.class
.getResourceAsStream(resourceName);
try {
JsonNode json = context.mapper().readTree(jsonStream);
assertThat(json, notNullValue());
Constraint constraint = constraintCodec.decode((ObjectNode) json, context);
assertThat(constraint, notNullValue());
return checkNotNull(constraint);
} catch (IOException ioe) {
Assert.fail(ioe.getMessage());
throw new IllegalStateException("cannot happen");
}
}
/**
* Tests link type constraint.
*/
@Test
public void linkTypeConstraint() {
Constraint constraint = getConstraint("LinkTypeConstraint.json");
assertThat(constraint, instanceOf(LinkTypeConstraint.class));
LinkTypeConstraint linkTypeConstraint = (LinkTypeConstraint) constraint;
assertThat(linkTypeConstraint.isInclusive(), is(false));
assertThat(linkTypeConstraint.types(), hasSize(2));
assertThat(linkTypeConstraint.types(), hasItem(Link.Type.OPTICAL));
assertThat(linkTypeConstraint.types(), hasItem(Link.Type.DIRECT));
}
/**
* Tests annotation constraint.
*/
@Test
public void annotationConstraint() {
Constraint constraint = getConstraint("AnnotationConstraint.json");
assertThat(constraint, instanceOf(AnnotationConstraint.class));
AnnotationConstraint annotationConstraint = (AnnotationConstraint) constraint;
assertThat(annotationConstraint.key(), is("key"));
assertThat(annotationConstraint.threshold(), is(123.0D));
}
/**
* Tests bandwidth constraint.
*/
@Test
public void bandwidthConstraint() {
Constraint constraint = getConstraint("BandwidthConstraint.json");
assertThat(constraint, instanceOf(BandwidthConstraint.class));
BandwidthConstraint bandwidthConstraint = (BandwidthConstraint) constraint;
assertThat(bandwidthConstraint.bandwidth().bps(), is(345.678D));
}
/**
* Tests lambda constraint.
*/
@Test
public void lambdaConstraint() {
Constraint constraint = getConstraint("LambdaConstraint.json");
assertThat(constraint, instanceOf(LambdaConstraint.class));
LambdaConstraint lambdaConstraint = (LambdaConstraint) constraint;
assertThat(lambdaConstraint.lambda().index(), is(444L));
}
/**
* Tests latency constraint.
*/
@Test
public void latencyConstraint() {
Constraint constraint = getConstraint("LatencyConstraint.json");
assertThat(constraint, instanceOf(LatencyConstraint.class));
LatencyConstraint latencyConstraint = (LatencyConstraint) constraint;
assertThat(latencyConstraint.latency().toMillis(), is(111L));
}
/**
* Tests obstacle constraint.
*/
@Test
public void obstacleConstraint() {
Constraint constraint = getConstraint("ObstacleConstraint.json");
assertThat(constraint, instanceOf(ObstacleConstraint.class));
ObstacleConstraint obstacleConstraint = (ObstacleConstraint) constraint;
assertThat(obstacleConstraint.obstacles(), hasItem(did("dev1")));
assertThat(obstacleConstraint.obstacles(), hasItem(did("dev2")));
assertThat(obstacleConstraint.obstacles(), hasItem(did("dev3")));
}
/**
* Tests waypoint constaint.
*/
@Test
public void waypointConstraint() {
Constraint constraint = getConstraint("WaypointConstraint.json");
assertThat(constraint, instanceOf(WaypointConstraint.class));
WaypointConstraint waypointConstraint = (WaypointConstraint) constraint;
assertThat(waypointConstraint.waypoints(), hasItem(did("devA")));
assertThat(waypointConstraint.waypoints(), hasItem(did("devB")));
assertThat(waypointConstraint.waypoints(), hasItem(did("devC")));
}
/**
* Tests asymmetric path constraint.
*/
@Test
public void asymmetricPathConstraint() {
Constraint constraint = getConstraint("AsymmetricPathConstraint.json");
assertThat(constraint, instanceOf(AsymmetricPathConstraint.class));
}
}
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