TopologyManagerTest.java

/*
 * Copyright (c) 2013 Big Switch Networks, Inc.
 *
 * Licensed under the Eclipse Public License, Version 1.0 (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.eclipse.org/legal/epl-v10.html
 *
 * 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.sdnplatform.topology;


import org.junit.Before;
import org.junit.Test;
import org.sdnplatform.core.IControllerService;
import org.sdnplatform.core.IControllerService.Role;
import org.sdnplatform.core.module.ModuleContext;
import org.sdnplatform.core.test.MockThreadPoolService;
import org.sdnplatform.linkdiscovery.ILinkDiscovery;
import org.sdnplatform.test.PlatformTestCase;
import org.sdnplatform.threadpool.IThreadPoolService;
import org.sdnplatform.topology.TopologyManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class TopologyManagerTest extends PlatformTestCase {
    protected static Logger log = LoggerFactory.getLogger(TopologyManagerTest.class);
    TopologyManager tm;
    ModuleContext fmc;
    
    @Before
    public void setUp() throws Exception {
        super.setUp();
        fmc = new ModuleContext();
        fmc.addService(IControllerService.class, getMockControllerProvider());
        MockThreadPoolService tp = new MockThreadPoolService();
        fmc.addService(IThreadPoolService.class, tp);
        tm  = new TopologyManager();
        tp.init(fmc);
        tm.init(fmc);
        tp.startUp(fmc);
    }

    @Test
    public void testBasic1() throws Exception {
        tm.addOrUpdateLink((long)1, (short)1, (long)2, (short)1, ILinkDiscovery.LinkType.DIRECT_LINK);
        assertTrue(tm.getSwitchPorts().size() == 2);  // for two nodes.
        assertTrue(tm.getSwitchPorts().get((long)1).size()==1);
        assertTrue(tm.getSwitchPorts().get((long)2).size()==1);
        assertTrue(tm.getSwitchPortLinks().size()==2);
        assertTrue(tm.getPortBroadcastDomainLinks().size()==0);
        assertTrue(tm.getTunnelPorts().size()==0);

        tm.addOrUpdateLink((long)1, (short)2, (long)2, (short)2, ILinkDiscovery.LinkType.MULTIHOP_LINK);
        assertTrue(tm.getSwitchPorts().size() == 2);  // for two nodes.
        assertTrue(tm.getSwitchPorts().get((long)1).size()==2);
        assertTrue(tm.getSwitchPorts().get((long)2).size()==2);
        assertTrue(tm.getSwitchPortLinks().size()==4);
        assertTrue(tm.getPortBroadcastDomainLinks().size()==2);
        assertTrue(tm.getTunnelPorts().size()==0);

        tm.removeLink((long)1, (short)2, (long)2, (short)2);
        assertTrue(tm.getSwitchPorts().get((long)1).size()==1);
        assertTrue(tm.getSwitchPorts().get((long)2).size()==1);
        assertTrue(tm.getSwitchPorts().size() == 2);
        assertTrue(tm.getSwitchPortLinks().size()==2);
        assertTrue(tm.getPortBroadcastDomainLinks().size()==0);

        tm.removeLink((long)1, (short)1, (long)2, (short)1);
        assertTrue(tm.getSwitchPorts().size() == 0); 
        assertTrue(tm.getSwitchPortLinks().size()==0);
        assertTrue(tm.getPortBroadcastDomainLinks().size()==0);
    }

    @Test
    public void testBasic2() throws Exception {
        tm.addOrUpdateLink((long)1, (short)1, (long)2, (short)1, ILinkDiscovery.LinkType.DIRECT_LINK);
        tm.addOrUpdateLink((long)2, (short)2, (long)3, (short)1, ILinkDiscovery.LinkType.MULTIHOP_LINK);
        assertTrue(tm.getSwitchPorts().size() == 3);  // for two nodes.
        assertTrue(tm.getSwitchPorts().get((long)1).size()==1);
        assertTrue(tm.getSwitchPorts().get((long)2).size()==2);
        assertTrue(tm.getSwitchPorts().get((long)3).size()==1);
        assertTrue(tm.getSwitchPortLinks().size()==4);
        assertTrue(tm.getPortBroadcastDomainLinks().size()==2);

        tm.removeLink((long)1, (short)1, (long)2, (short)1);
        assertTrue(tm.getSwitchPorts().size() == 2);
        assertTrue(tm.getSwitchPorts().get((long)1) == null);
        assertTrue(tm.getSwitchPorts().get((long)2).size()==1);
        assertTrue(tm.getSwitchPorts().get((long)3).size()==1);
        assertTrue(tm.getSwitchPortLinks().size()==2);
        assertTrue(tm.getPortBroadcastDomainLinks().size()==2);

        // nonexistent link // no null pointer exceptions.
        tm.removeLink((long)3, (short)1, (long)2, (short)2);
        assertTrue(tm.getSwitchPorts().size() == 2);
        assertTrue(tm.getSwitchPorts().get((long)1) == null);
        assertTrue(tm.getSwitchPorts().get((long)2).size()==1);
        assertTrue(tm.getSwitchPorts().get((long)3).size()==1);
        assertTrue(tm.getSwitchPortLinks().size()==2);
        assertTrue(tm.getPortBroadcastDomainLinks().size()==2);

        tm.removeLink((long)3, (short)2, (long)1, (short)2);
        assertTrue(tm.getSwitchPorts().size() == 2);
        assertTrue(tm.getSwitchPorts().get((long)1)==null);
        assertTrue(tm.getSwitchPorts().get((long)2).size()==1);
        assertTrue(tm.getSwitchPorts().get((long)3).size()==1);
        assertTrue(tm.getSwitchPortLinks().size()==2);
        assertTrue(tm.getPortBroadcastDomainLinks().size()==2);

        tm.removeLink((long)2, (short)2, (long)3, (short)1);
        assertTrue(tm.getSwitchPorts().size() == 0);  // for two nodes.
        assertTrue(tm.getSwitchPortLinks().size()==0);
        assertTrue(tm.getPortBroadcastDomainLinks().size()==0);
        assertTrue(tm.getTunnelPorts().size()==0);
    }

    @Test
    public void testHARoleChange() throws Exception {
        testBasic2();
        getMockControllerProvider().dispatchRoleChanged(null, Role.SLAVE);
        assertTrue(tm.switchPorts.isEmpty());
        assertTrue(tm.switchPortLinks.isEmpty());
        assertTrue(tm.portBroadcastDomainLinks.isEmpty());
        assertTrue(tm.tunnelPorts.isEmpty());
    }
}