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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.net.intent.impl.compiler;
import org.hamcrest.Matchers;
import org.junit.Before;
import org.junit.Test;
import org.onosproject.core.ApplicationId;
import org.onosproject.TestApplicationId;
import org.onosproject.net.Host;
import org.onosproject.net.HostId;
import org.onosproject.net.flow.TrafficSelector;
import org.onosproject.net.flow.TrafficTreatment;
import org.onosproject.net.host.HostService;
import org.onosproject.net.intent.AbstractIntentTest;
import org.onosproject.net.intent.HostToHostIntent;
import org.onosproject.net.intent.Intent;
import org.onosproject.net.intent.IntentTestsMocks;
import org.onosproject.net.intent.PathIntent;
import org.onlab.packet.MacAddress;
import org.onlab.packet.VlanId;
import java.util.List;
import static org.easymock.EasyMock.*;
import static org.hamcrest.CoreMatchers.notNullValue;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.hasSize;
import static org.hamcrest.Matchers.is;
import static org.onosproject.net.NetTestTools.hid;
import static org.onosproject.net.intent.LinksHaveEntryWithSourceDestinationPairMatcher.linksHasPath;
/**
* Unit tests for the HostToHost intent compiler.
*/
public class HostToHostIntentCompilerTest extends AbstractIntentTest {
private static final String HOST_ONE_MAC = "00:00:00:00:00:01";
private static final String HOST_TWO_MAC = "00:00:00:00:00:02";
private static final String HOST_ONE_VLAN = "-1";
private static final String HOST_TWO_VLAN = "-1";
private static final String HOST_ONE = HOST_ONE_MAC + "/" + HOST_ONE_VLAN;
private static final String HOST_TWO = HOST_TWO_MAC + "/" + HOST_TWO_VLAN;
private static final ApplicationId APPID = new TestApplicationId("foo");
private TrafficSelector selector = new IntentTestsMocks.MockSelector();
private TrafficTreatment treatment = new IntentTestsMocks.MockTreatment();
private HostId hostOneId = HostId.hostId(HOST_ONE);
private HostId hostTwoId = HostId.hostId(HOST_TWO);
private HostService mockHostService;
@Before
public void setUp() throws Exception {
super.setUp();
Host hostOne = createMock(Host.class);
expect(hostOne.mac()).andReturn(new MacAddress(HOST_ONE_MAC.getBytes())).anyTimes();
expect(hostOne.vlan()).andReturn(VlanId.vlanId()).anyTimes();
replay(hostOne);
Host hostTwo = createMock(Host.class);
expect(hostTwo.mac()).andReturn(new MacAddress(HOST_TWO_MAC.getBytes())).anyTimes();
expect(hostTwo.vlan()).andReturn(VlanId.vlanId()).anyTimes();
replay(hostTwo);
mockHostService = createMock(HostService.class);
expect(mockHostService.getHost(eq(hostOneId))).andReturn(hostOne).anyTimes();
expect(mockHostService.getHost(eq(hostTwoId))).andReturn(hostTwo).anyTimes();
replay(mockHostService);
}
/**
* Creates a HostToHost intent based on two host Ids.
*
* @param oneIdString string for host one id
* @param twoIdString string for host two id
* @return HostToHostIntent for the two hosts
*/
private HostToHostIntent makeIntent(String oneIdString, String twoIdString) {
return HostToHostIntent.builder()
.appId(APPID)
.one(hid(oneIdString))
.two(hid(twoIdString))
.selector(selector)
.treatment(treatment)
.build();
}
/**
* Creates a compiler for HostToHost intents.
*
* @param hops string array describing the path hops to use when compiling
* @return HostToHost intent compiler
*/
private HostToHostIntentCompiler makeCompiler(String[] hops) {
HostToHostIntentCompiler compiler =
new HostToHostIntentCompiler();
compiler.pathService = new IntentTestsMocks.MockPathService(hops);
compiler.hostService = mockHostService;
return compiler;
}
/**
* Tests a pair of hosts with 8 hops between them.
*/
@Test
public void testSingleLongPathCompilation() {
HostToHostIntent intent = makeIntent(HOST_ONE,
HOST_TWO);
assertThat(intent, is(notNullValue()));
String[] hops = {HOST_ONE, "h1", "h2", "h3", "h4", "h5", "h6", "h7", "h8", HOST_TWO};
HostToHostIntentCompiler compiler = makeCompiler(hops);
assertThat(compiler, is(notNullValue()));
List<Intent> result = compiler.compile(intent, null, null);
assertThat(result, is(Matchers.notNullValue()));
assertThat(result, hasSize(2));
Intent forwardResultIntent = result.get(0);
assertThat(forwardResultIntent instanceof PathIntent, is(true));
Intent reverseResultIntent = result.get(1);
assertThat(reverseResultIntent instanceof PathIntent, is(true));
if (forwardResultIntent instanceof PathIntent) {
PathIntent forwardPathIntent = (PathIntent) forwardResultIntent;
assertThat(forwardPathIntent.path().links(), hasSize(9));
assertThat(forwardPathIntent.path().links(), linksHasPath(HOST_ONE, "h1"));
assertThat(forwardPathIntent.path().links(), linksHasPath("h1", "h2"));
assertThat(forwardPathIntent.path().links(), linksHasPath("h2", "h3"));
assertThat(forwardPathIntent.path().links(), linksHasPath("h3", "h4"));
assertThat(forwardPathIntent.path().links(), linksHasPath("h4", "h5"));
assertThat(forwardPathIntent.path().links(), linksHasPath("h5", "h6"));
assertThat(forwardPathIntent.path().links(), linksHasPath("h6", "h7"));
assertThat(forwardPathIntent.path().links(), linksHasPath("h7", "h8"));
assertThat(forwardPathIntent.path().links(), linksHasPath("h8", HOST_TWO));
}
if (reverseResultIntent instanceof PathIntent) {
PathIntent reversePathIntent = (PathIntent) reverseResultIntent;
assertThat(reversePathIntent.path().links(), hasSize(9));
assertThat(reversePathIntent.path().links(), linksHasPath("h1", HOST_ONE));
assertThat(reversePathIntent.path().links(), linksHasPath("h2", "h1"));
assertThat(reversePathIntent.path().links(), linksHasPath("h3", "h2"));
assertThat(reversePathIntent.path().links(), linksHasPath("h4", "h3"));
assertThat(reversePathIntent.path().links(), linksHasPath("h5", "h4"));
assertThat(reversePathIntent.path().links(), linksHasPath("h6", "h5"));
assertThat(reversePathIntent.path().links(), linksHasPath("h7", "h6"));
assertThat(reversePathIntent.path().links(), linksHasPath("h8", "h7"));
assertThat(reversePathIntent.path().links(), linksHasPath(HOST_TWO, "h8"));
}
}
}
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