TAPI topology consolidation
[transportpce.git] / tapi / src / test / java / org / opendaylight / transportpce / tapi / topology / ConvertORTopoObjectToTapiTooObjectTest.java
diff --git a/tapi/src/test/java/org/opendaylight/transportpce/tapi/topology/ConvertORTopoObjectToTapiTooObjectTest.java b/tapi/src/test/java/org/opendaylight/transportpce/tapi/topology/ConvertORTopoObjectToTapiTooObjectTest.java
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+/*
+ * Copyright © 2020 Orange, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.transportpce.tapi.topology;
+
+import static org.hamcrest.CoreMatchers.containsString;
+import static org.hamcrest.CoreMatchers.either;
+import static org.hamcrest.CoreMatchers.hasItem;
+import static org.hamcrest.CoreMatchers.hasItems;
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.junit.Assert.assertEquals;
+
+import com.google.common.util.concurrent.FluentFuture;
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+import java.util.concurrent.ExecutionException;
+import java.util.stream.Collectors;
+import org.eclipse.jdt.annotation.Nullable;
+import org.junit.BeforeClass;
+import org.junit.Test;
+import org.opendaylight.mdsal.binding.api.DataBroker;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
+import org.opendaylight.transportpce.common.InstanceIdentifiers;
+import org.opendaylight.transportpce.tapi.utils.TopologyDataUtils;
+import org.opendaylight.transportpce.test.AbstractTest;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.common.network.rev181130.TerminationPoint1;
+import org.opendaylight.yang.gen.v1.http.org.openroadm.network.types.rev181130.OpenroadmTpType;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.NetworkId;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.Networks;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.NodeId;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.NetworkKey;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.network.Node;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.network.NodeKey;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.Network1;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.Node1;
+import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226.networks.network.node.TerminationPoint;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.AdministrativeState;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.CapacityUnit;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.ForwardingDirection;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.LayerProtocolName;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.LifecycleState;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.OperationalState;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.PortDirection;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.PortRole;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.TerminationDirection;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.TerminationState;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.Uuid;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.global._class.Name;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.common.rev181210.global._class.NameKey;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.dsr.rev181210.DIGITALSIGNALTYPE100GigE;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.dsr.rev181210.DIGITALSIGNALTYPE10GigELAN;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.odu.rev181210.ODUTYPEODU2E;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.odu.rev181210.ODUTYPEODU4;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.photonic.media.rev181210.PHOTONICLAYERQUALIFIEROMS;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.photonic.media.rev181210.PHOTONICLAYERQUALIFIEROTSi;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.ForwardingRule;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.RuleType;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.node.NodeRuleGroup;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.node.OwnedNodeEdgePoint;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.node.rule.group.NodeEdgePoint;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.node.rule.group.Rule;
+import org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.topology.Link;
+import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
+import org.opendaylight.yangtools.yang.common.Uint64;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class ConvertORTopoObjectToTapiTooObjectTest extends AbstractTest {
+    private static final Logger LOG = LoggerFactory.getLogger(ConvertORTopoObjectToTapiTooObjectTest.class);
+
+    private static Node otnMuxA;
+    private static Node otnMuxC;
+    private static Node otnSwitch;
+    private static List<org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.topology.rev180226
+        .networks.network.Link> otnLinks;
+    private static Uuid topologyUuid;
+    private static DataBroker dataBroker = getDataBroker();
+
+    @BeforeClass
+    public static void setUp() throws InterruptedException, ExecutionException {
+        TopologyDataUtils.writeTopologyFromFileToDatastore(getDataStoreContextUtil(),
+            TopologyDataUtils.OPENROADM_TOPOLOGY_FILE, InstanceIdentifiers.OVERLAY_NETWORK_II);
+        TopologyDataUtils.writeTopologyFromFileToDatastore(getDataStoreContextUtil(),
+            TopologyDataUtils.OTN_TOPOLOGY_WITH_OTN_LINKS_FILE, InstanceIdentifiers.OTN_NETWORK_II);
+        TopologyDataUtils.writePortmappingFromFileToDatastore(getDataStoreContextUtil());
+
+        KeyedInstanceIdentifier<Node, NodeKey> muxAIID = InstanceIdentifier.create(Networks.class)
+            .child(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.Network
+                .class, new NetworkKey(new NetworkId("otn-topology")))
+            .child(Node.class, new NodeKey(new NodeId("SPDR-SA1-XPDR1")));
+        FluentFuture<Optional<Node>> muxAFuture = dataBroker.newReadOnlyTransaction()
+            .read(LogicalDatastoreType.CONFIGURATION, muxAIID);
+        KeyedInstanceIdentifier<Node, NodeKey> muxCIID = InstanceIdentifier.create(Networks.class)
+            .child(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.Network
+                .class, new NetworkKey(new NetworkId("otn-topology")))
+            .child(Node.class, new NodeKey(new NodeId("SPDR-SC1-XPDR1")));
+        FluentFuture<Optional<Node>> muxCFuture = dataBroker.newReadOnlyTransaction()
+            .read(LogicalDatastoreType.CONFIGURATION, muxCIID);
+        KeyedInstanceIdentifier<Node, NodeKey> switchIID = InstanceIdentifier.create(Networks.class)
+            .child(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.Network
+                .class, new NetworkKey(new NetworkId("otn-topology")))
+            .child(Node.class, new NodeKey(new NodeId("SPDR-SA1-XPDR2")));
+        FluentFuture<Optional<Node>> switchFuture = dataBroker.newReadOnlyTransaction()
+            .read(LogicalDatastoreType.CONFIGURATION, switchIID);
+        otnMuxA = muxAFuture.get().get();
+        otnMuxC = muxCFuture.get().get();
+        otnSwitch = switchFuture.get().get();
+
+        InstanceIdentifier<Network1> linksIID = InstanceIdentifier.create(Networks.class)
+            .child(org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.network.rev180226.networks.Network
+                .class, new NetworkKey(new NetworkId("otn-topology")))
+            .augmentation(Network1.class);
+        FluentFuture<Optional<Network1>> linksFuture = dataBroker.newReadOnlyTransaction()
+            .read(LogicalDatastoreType.CONFIGURATION, linksIID);
+        otnLinks = linksFuture.get().get().getLink().values().stream().collect(Collectors.toList());
+        Collections.sort(otnLinks, (l1, l2) -> l1.getLinkId().getValue().compareTo(l2.getLinkId().getValue()));
+        topologyUuid = new Uuid(UUID.nameUUIDFromBytes("T0 - Multi-layer topology".getBytes(Charset.forName("UTF-8")))
+            .toString());
+        LOG.info("TEST SETUP READY");
+    }
+
+    @Test
+    public void convertNodeForOtnMuxponder() {
+        ConvertORTopoToTapiTopo tapiFactory = new ConvertORTopoToTapiTopo(topologyUuid);
+        List<String> networkPortList = new ArrayList<>();
+        for (TerminationPoint tp : otnMuxA.augmentation(Node1.class).getTerminationPoint().values()) {
+            if (tp.augmentation(TerminationPoint1.class).getTpType().equals(OpenroadmTpType.XPONDERNETWORK)) {
+                networkPortList.add(tp.getTpId().getValue());
+            }
+        }
+        tapiFactory.convertNode(otnMuxA, networkPortList);
+        List<org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.topology.Node> tapiNodes
+            = tapiFactory.getTapiNodes().values().stream()
+            .sorted((n1, n2) -> n1.getUuid().getValue().compareTo(n2.getUuid().getValue()))
+            .collect(Collectors.toList());
+
+        assertEquals("Node list size should be 2", 2, tapiFactory.getTapiNodes().size());
+        assertEquals("Link list size should be 1", 1, tapiFactory.getTapiLinks().size());
+
+        Uuid dsrNodeUuid = new Uuid(UUID.nameUUIDFromBytes("SPDR-SA1-XPDR1+DSR".getBytes(Charset.forName("UTF-8")))
+            .toString());
+        checkDsrNode(tapiNodes.get(0), dsrNodeUuid, false, "SPDR-SA1-XPDR1");
+        Uuid otsiNodeUuid = new Uuid(UUID.nameUUIDFromBytes("SPDR-SA1-XPDR1+OTSi".getBytes(Charset.forName("UTF-8")))
+            .toString());
+        checkOtsiNode(tapiNodes.get(1), otsiNodeUuid, "mux", "SPDR-SA1-XPDR1");
+
+        List<Link> tapiLinks = tapiFactory.getTapiLinks().values().stream()
+            .sorted((l1, l2) -> l1.getUuid().getValue().compareTo(l2.getUuid().getValue()))
+            .collect(Collectors.toList());
+        checkTransitionalLink(tapiLinks.get(0), dsrNodeUuid, otsiNodeUuid,
+            "SPDR-SA1-XPDR1+DSR+XPDR1-NETWORK1", "SPDR-SA1-XPDR1+iOTSi+XPDR1-NETWORK1", "SPDR-SA1-XPDR1");
+    }
+
+    @Test
+    public void convertNodeForOtnSwitch() {
+        ConvertORTopoToTapiTopo tapiFactory = new ConvertORTopoToTapiTopo(topologyUuid);
+        List<String> networkPortList = new ArrayList<>();
+        for (TerminationPoint tp : otnSwitch.augmentation(Node1.class).getTerminationPoint().values()) {
+            if (tp.augmentation(TerminationPoint1.class).getTpType().equals(OpenroadmTpType.XPONDERNETWORK)) {
+                networkPortList.add(tp.getTpId().getValue());
+            }
+        }
+        tapiFactory.convertNode(otnSwitch, networkPortList);
+        List<org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.topology.Node> tapiNodes
+            = tapiFactory.getTapiNodes().values().stream()
+            .sorted((n1, n2) -> n1.getUuid().getValue().compareTo(n2.getUuid().getValue()))
+            .collect(Collectors.toList());
+
+        assertEquals("Node list size should be 2", 2, tapiFactory.getTapiNodes().size());
+        assertEquals("Link list size should be 4", 4, tapiFactory.getTapiLinks().size());
+
+        Uuid dsrNodeUuid = new Uuid(UUID.nameUUIDFromBytes("SPDR-SA1-XPDR2+DSR".getBytes(Charset.forName("UTF-8")))
+            .toString());
+        checkDsrNode(tapiNodes.get(0), dsrNodeUuid, true, "SPDR-SA1-XPDR2");
+        Uuid otsiNodeUuid = new Uuid(UUID.nameUUIDFromBytes("SPDR-SA1-XPDR2+OTSi".getBytes(Charset.forName("UTF-8")))
+            .toString());
+        checkOtsiNode(tapiNodes.get(1), otsiNodeUuid, "switch", "SPDR-SA1-XPDR2");
+
+        List<Link> tapiLinks = tapiFactory.getTapiLinks().values().stream()
+            .sorted((l1, l2) -> l1.getUuid().getValue().compareTo(l2.getUuid().getValue()))
+            .collect(Collectors.toList());
+        checkTransitionalLink(tapiLinks.get(0), dsrNodeUuid, otsiNodeUuid,
+            "SPDR-SA1-XPDR2+DSR+XPDR2-NETWORK4", "SPDR-SA1-XPDR2+iOTSi+XPDR2-NETWORK4", "SPDR-SA1-XPDR2");
+    }
+
+    @Test
+    public void convertOtnLink() {
+        ConvertORTopoToTapiTopo tapiFactory = new ConvertORTopoToTapiTopo(topologyUuid);
+        List<String> networkPortListA = new ArrayList<>();
+        for (TerminationPoint tp : otnMuxA.augmentation(Node1.class).getTerminationPoint().values()) {
+            if (tp.augmentation(TerminationPoint1.class).getTpType().equals(OpenroadmTpType.XPONDERNETWORK)) {
+                networkPortListA.add(tp.getTpId().getValue());
+            }
+        }
+        tapiFactory.convertNode(otnMuxA, networkPortListA);
+        List<String> networkPortListC = new ArrayList<>();
+        for (TerminationPoint tp : otnMuxC.augmentation(Node1.class).getTerminationPoint().values()) {
+            if (tp.augmentation(TerminationPoint1.class).getTpType().equals(OpenroadmTpType.XPONDERNETWORK)) {
+                networkPortListC.add(tp.getTpId().getValue());
+            }
+        }
+        tapiFactory.convertNode(otnMuxC, networkPortListC);
+        tapiFactory.convertLinks(otnLinks);
+        assertEquals("Link list size should be 4", 4, tapiFactory.getTapiLinks().size());
+
+        Uuid node1Uuid = new Uuid(UUID.nameUUIDFromBytes("SPDR-SA1-XPDR1+DSR".getBytes(Charset.forName("UTF-8")))
+            .toString());
+        Uuid node2Uuid = new Uuid(UUID.nameUUIDFromBytes("SPDR-SC1-XPDR1+DSR".getBytes(Charset.forName("UTF-8")))
+            .toString());
+        Uuid node3Uuid = new Uuid(UUID.nameUUIDFromBytes("SPDR-SA1-XPDR1+OTSi".getBytes(Charset.forName("UTF-8")))
+            .toString());
+        Uuid node4Uuid = new Uuid(UUID.nameUUIDFromBytes("SPDR-SC1-XPDR1+OTSi".getBytes(Charset.forName("UTF-8")))
+            .toString());
+        Uuid tp1Uuid = new Uuid(UUID.nameUUIDFromBytes("SPDR-SA1-XPDR1+DSR+XPDR1-NETWORK1"
+            .getBytes(Charset.forName("UTF-8"))).toString());
+        Uuid tp2Uuid = new Uuid(UUID.nameUUIDFromBytes("SPDR-SC1-XPDR1+DSR+XPDR1-NETWORK1"
+            .getBytes(Charset.forName("UTF-8"))).toString());
+        Uuid tp3Uuid = new Uuid(UUID.nameUUIDFromBytes("SPDR-SA1-XPDR1+iOTSi+XPDR1-NETWORK1"
+            .getBytes(Charset.forName("UTF-8"))).toString());
+        Uuid tp4Uuid = new Uuid(UUID.nameUUIDFromBytes("SPDR-SC1-XPDR1+iOTSi+XPDR1-NETWORK1"
+            .getBytes(Charset.forName("UTF-8"))).toString());
+        Uuid link1Uuid =
+            new Uuid(UUID.nameUUIDFromBytes("ODU4-SPDR-SA1-XPDR1-XPDR1-NETWORK1toSPDR-SC1-XPDR1-XPDR1-NETWORK1"
+                .getBytes(Charset.forName("UTF-8"))).toString());
+        Uuid link2Uuid =
+            new Uuid(UUID.nameUUIDFromBytes("OTU4-SPDR-SA1-XPDR1-XPDR1-NETWORK1toSPDR-SC1-XPDR1-XPDR1-NETWORK1"
+                .getBytes(Charset.forName("UTF-8"))).toString());
+
+        List<Link> links = tapiFactory.getTapiLinks().values().stream()
+            .sorted((l1, l2) -> l1.getUuid().getValue().compareTo(l2.getUuid().getValue()))
+            .collect(Collectors.toList());
+        checkOtnLink(links.get(0), node1Uuid, node2Uuid, tp1Uuid, tp2Uuid, link1Uuid,
+            "ODU4-SPDR-SA1-XPDR1-XPDR1-NETWORK1toSPDR-SC1-XPDR1-XPDR1-NETWORK1");
+        checkOtnLink(links.get(2), node3Uuid, node4Uuid, tp3Uuid, tp4Uuid, link2Uuid,
+            "OTU4-SPDR-SA1-XPDR1-XPDR1-NETWORK1toSPDR-SC1-XPDR1-XPDR1-NETWORK1");
+    }
+
+    @Test
+    public void convertRoadmInfrastructureWhenNoXponderAttached() {
+        ConvertORTopoToTapiTopo tapiFactory = new ConvertORTopoToTapiTopo(topologyUuid);
+        tapiFactory.convertRoadmInfrastructure();
+
+        assertEquals("Node list size should be 1", 1, tapiFactory.getTapiNodes().size());
+        assertEquals("Link list size should be empty", 0, tapiFactory.getTapiLinks().size());
+        List<org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.topology.Node> tapiNodes
+            = tapiFactory.getTapiNodes().values().stream().collect(Collectors.toList());
+        Uuid otsiNodeUuid = new Uuid(UUID.nameUUIDFromBytes("ROADM-infra".getBytes(Charset.forName("UTF-8")))
+            .toString());
+        checkOtsiNode(tapiNodes.get(0), otsiNodeUuid, "infra", "ROADM-infra");
+    }
+
+    @Test
+    public void convertRoadmInfrastructureWhenOtnMuxAttached() {
+        ConvertORTopoToTapiTopo tapiFactory = new ConvertORTopoToTapiTopo(topologyUuid);
+        List<String> networkPortListA = new ArrayList<>();
+        for (TerminationPoint tp : otnMuxA.augmentation(Node1.class).getTerminationPoint().values()) {
+            if (tp.augmentation(TerminationPoint1.class).getTpType().equals(OpenroadmTpType.XPONDERNETWORK)) {
+                networkPortListA.add(tp.getTpId().getValue());
+            }
+        }
+        tapiFactory.convertNode(otnMuxA, networkPortListA);
+        tapiFactory.convertRoadmInfrastructure();
+
+        assertEquals("Node list size should be 3", 3, tapiFactory.getTapiNodes().size());
+        assertEquals("Link list size should be 2", 2, tapiFactory.getTapiLinks().size());
+        List<org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.topology.Node> tapiNodes
+            = tapiFactory.getTapiNodes().values().stream()
+                .sorted((n1, n2) -> n1.getUuid().getValue().compareTo(n2.getUuid().getValue()))
+                .collect(Collectors.toList());
+        Uuid otsiNodeUuid = new Uuid(UUID.nameUUIDFromBytes("ROADM-infra".getBytes(Charset.forName("UTF-8")))
+            .toString());
+        checkOtsiNode(tapiNodes.get(2), otsiNodeUuid, "infra", "ROADM-infra");
+
+        List<Link> links = tapiFactory.getTapiLinks().values().stream()
+            .sorted((l1, l2) -> l1.getUuid().getValue().compareTo(l2.getUuid().getValue()))
+            .collect(Collectors.toList());
+        Uuid node1Uuid = new Uuid(UUID.nameUUIDFromBytes("SPDR-SA1-XPDR1+OTSi".getBytes(Charset.forName("UTF-8")))
+            .toString());
+        Uuid node2Uuid = new Uuid(UUID.nameUUIDFromBytes("ROADM-infra".getBytes(Charset.forName("UTF-8")))
+            .toString());
+        Uuid tp1Uuid = new Uuid(UUID.nameUUIDFromBytes("SPDR-SA1-XPDR1+eOTSi+XPDR1-NETWORK1"
+            .getBytes(Charset.forName("UTF-8"))).toString());
+        Uuid tp2Uuid = new Uuid(UUID.nameUUIDFromBytes(("roadm node+nep+1")
+            .getBytes(Charset.forName("UTF-8"))).toString());
+        Uuid linkUuid =
+            new Uuid(UUID.nameUUIDFromBytes("SPDR-SA1-XPDR1--XPDR1-NETWORK1 and ROADM-infra--NodeEdgePoint_1"
+                .getBytes(Charset.forName("UTF-8"))).toString());
+        checkOmsLink(links.get(0), node1Uuid, node2Uuid, tp1Uuid, tp2Uuid, linkUuid,
+            "SPDR-SA1-XPDR1--XPDR1-NETWORK1 and ROADM-infra--NodeEdgePoint_1");
+    }
+
+    private void checkDsrNode(org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.topology.Node node,
+        Uuid nodeUuid, boolean isSwitch, String nodeId) {
+        assertEquals("incorrect node uuid", nodeUuid, node.getUuid());
+        assertEquals("incorrect node name", nodeId, node.getName().get(new NameKey("dsr/odu node name")).getValue());
+        assertEquals("administrative state should be UNLOCKED",
+            AdministrativeState.UNLOCKED, node.getAdministrativeState());
+        assertEquals("life-cycle state should be INSTALLED", LifecycleState.INSTALLED, node.getLifecycleState());
+        assertEquals("operational state should be ENABLED", OperationalState.ENABLED, node.getOperationalState());
+        assertEquals("value-name should be 'dsr/odu node name'",
+             "dsr/odu node name", node.nonnullName().values().stream().findFirst().get().getValueName());
+        assertEquals("dsr node should manage 2 protocol layers : dsr and odu",
+            2, node.getLayerProtocolName().size());
+        assertThat("dsr node should manage 2 protocol layers : dsr and odu",
+            node.getLayerProtocolName(), hasItems(LayerProtocolName.DSR, LayerProtocolName.ODU));
+        List<OwnedNodeEdgePoint> neps = node.nonnullOwnedNodeEdgePoint().values().stream()
+            .sorted((nep1, nep2) -> nep1.getUuid().getValue().compareTo(nep2.getUuid().getValue()))
+            .collect(Collectors.toList());
+        if (isSwitch) {
+            assertEquals("Switch-DSR node should have 8 NEPs", 8, neps.size());
+            OwnedNodeEdgePoint nep1 = neps.get(3);
+            Uuid client4NepUuid = new Uuid(
+                    UUID.nameUUIDFromBytes((nodeId + "+DSR+XPDR2-CLIENT4").getBytes(Charset.forName("UTF-8")))
+                    .toString());
+            checkNepClient100G(nep1, client4NepUuid, "XPDR2-CLIENT4", "NodeEdgePoint_C4");
+            OwnedNodeEdgePoint nep2 = neps.get(4);
+            Uuid networkNepUuid = new Uuid(
+                    UUID.nameUUIDFromBytes((nodeId + "+DSR+XPDR2-NETWORK1").getBytes(Charset.forName("UTF-8")))
+                    .toString());
+            checkNepNetworkODU4(nep2, networkNepUuid, "XPDR2-NETWORK1", "NodeEdgePoint_N1");
+            List<NodeRuleGroup> nrgList = node.nonnullNodeRuleGroup().values().stream()
+                .sorted((nrg1, nrg2) -> nrg1.getUuid().getValue().compareTo(nrg2.getUuid().getValue()))
+                .collect(Collectors.toList());
+            checkNodeRuleGroupForSwitchDSR(nrgList, client4NepUuid, networkNepUuid, nodeUuid);
+        } else {
+            assertEquals("Mux-DSR node should have 5 NEPs", 5, neps.size());
+            OwnedNodeEdgePoint nep1 = neps.get(0);
+            Uuid client4NepUuid = new Uuid(
+                    UUID.nameUUIDFromBytes((nodeId + "+DSR+XPDR1-CLIENT4").getBytes(Charset.forName("UTF-8")))
+                    .toString());
+            checkNepClient10G(nep1, client4NepUuid, "XPDR1-CLIENT4", "NodeEdgePoint_C4");
+
+            OwnedNodeEdgePoint nep2 = neps.get(1);
+            Uuid networkNepUuid = new Uuid(
+                    UUID.nameUUIDFromBytes((nodeId + "+DSR+XPDR1-NETWORK1").getBytes(Charset.forName("UTF-8")))
+                    .toString());
+            checkNepNetworkODU4(nep2, networkNepUuid, "XPDR1-NETWORK1", "NodeEdgePoint_N1");
+            List<NodeRuleGroup> nrgList = node.nonnullNodeRuleGroup().values().stream()
+                .sorted((nrg1, nrg2) -> nrg1.getUuid().getValue().compareTo(nrg2.getUuid().getValue()))
+                .collect(Collectors.toList());
+            checkNodeRuleGroupForMuxDSR(nrgList, client4NepUuid, networkNepUuid, nodeUuid);
+        }
+    }
+
+    private void checkOtsiNode(
+            org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210.topology.Node node,
+        Uuid nodeUuid, String otsiNodeType, String nodeId) {
+        assertEquals("incorrect node uuid", nodeUuid, node.getUuid());
+        assertEquals("incorrect node name", nodeId, node.getName().get(new NameKey("otsi node name")).getValue());
+        assertEquals("administrative state should be UNLOCKED",
+            AdministrativeState.UNLOCKED, node.getAdministrativeState());
+        assertEquals("life-cycle state should be INSTALLED", LifecycleState.INSTALLED, node.getLifecycleState());
+        assertEquals("operational state should be ENABLED", OperationalState.ENABLED, node.getOperationalState());
+        assertEquals("value-name should be 'dsr/odu node name'",
+             "otsi node name", node.nonnullName().values().stream().findFirst().get().getValueName());
+        assertEquals("otsi node should manage a single protocol layer : PHOTONIC_MEDIA",
+            1, node.getLayerProtocolName().size());
+        assertEquals("otsi node should manage a single protocol layer : PHOTONIC_MEDIA",
+            LayerProtocolName.PHOTONICMEDIA, node.getLayerProtocolName().get(0));
+        List<OwnedNodeEdgePoint> neps = node.nonnullOwnedNodeEdgePoint().values().stream()
+            .sorted((nep1, nep2) -> nep1.getUuid().getValue().compareTo(nep2.getUuid().getValue()))
+            .collect(Collectors.toList());
+        switch (otsiNodeType) {
+            case "switch":
+                assertEquals("Switch-OTSi node should have 8 NEPs", 8, neps.size());
+                OwnedNodeEdgePoint nep1 = neps.get(2);
+                Uuid inepUuid = new Uuid(
+                        UUID.nameUUIDFromBytes((nodeId + "+iOTSi+XPDR2-NETWORK2").getBytes(Charset.forName("UTF-8")))
+                        .toString());
+                checkNepOtsiNode(nep1, inepUuid, "XPDR2-NETWORK2", "iNodeEdgePoint_2");
+                OwnedNodeEdgePoint nep2 = neps.get(0);
+                Uuid enepUuid = new Uuid(
+                        UUID.nameUUIDFromBytes((nodeId + "+eOTSi+XPDR2-NETWORK2").getBytes(Charset.forName("UTF-8")))
+                        .toString());
+                checkNepOtsiNode(nep2, enepUuid, "XPDR2-NETWORK2", "eNodeEdgePoint_2");
+                List<NodeRuleGroup> nrgList = node.nonnullNodeRuleGroup().values().stream()
+                    .sorted((nrg1, nrg2) -> nrg1.getUuid().getValue().compareTo(nrg2.getUuid().getValue()))
+                    .collect(Collectors.toList());
+                checkNodeRuleGroupForSwitchOTSi(nrgList, enepUuid, inepUuid, nodeUuid);
+                break;
+            case "mux":
+                assertEquals("Mux-OTSi node should have 2 NEPs", 2, neps.size());
+                OwnedNodeEdgePoint nep3 = neps.get(0);
+                Uuid enepUuid2 = new Uuid(
+                        UUID.nameUUIDFromBytes((nodeId + "+eOTSi+XPDR1-NETWORK1").getBytes(Charset.forName("UTF-8")))
+                        .toString());
+                checkNepOtsiNode(nep3, enepUuid2, "XPDR1-NETWORK1", "eNodeEdgePoint_1");
+                OwnedNodeEdgePoint nep4 = neps.get(1);
+                Uuid inepUuid2 = new Uuid(
+                        UUID.nameUUIDFromBytes((nodeId + "+iOTSi+XPDR1-NETWORK1").getBytes(Charset.forName("UTF-8")))
+                        .toString());
+                checkNepOtsiNode(nep4, inepUuid2, "XPDR1-NETWORK1", "iNodeEdgePoint_1");
+                List<NodeRuleGroup> nrgList2 = node.nonnullNodeRuleGroup().values().stream()
+                    .sorted((nrg1, nrg2) -> nrg1.getUuid().getValue().compareTo(nrg2.getUuid().getValue()))
+                    .collect(Collectors.toList());
+                checkNodeRuleGroupForMuxOTSi(nrgList2, enepUuid2, inepUuid2, nodeUuid);
+                break;
+            default:
+                Iterator<OwnedNodeEdgePoint> nepIterator = node.nonnullOwnedNodeEdgePoint().values().iterator();
+                int count = 1;
+                while (nepIterator.hasNext()) {
+                    OwnedNodeEdgePoint nep = nepIterator.next();
+                    Uuid nepUuid = new Uuid(
+                        UUID.nameUUIDFromBytes((String.join("+", "roadm node", "nep", String.valueOf(count)))
+                            .getBytes(Charset.forName("UTF-8"))).toString());
+                    checkNepOtsiRdmNode(nep, nepUuid, new StringBuilder("NodeEdgePoint_").append(count).toString(),
+                        "NodeEdgePoint name");
+                    count++;
+                }
+                break;
+        }
+    }
+
+    private void checkNepClient10G(OwnedNodeEdgePoint nep, Uuid nepUuid, String portName, String nepName) {
+        assertEquals("bad uuid for " + portName, nepUuid, nep.getUuid());
+        List<Name> nameList = new ArrayList<>(nep.nonnullName().values());
+        Name name = nameList.get(0);
+        assertEquals("value of client nep should be '" + portName + "'",
+            portName, name.getValue());
+        assertEquals("value-name of client nep for '" + portName + "' should be '" + nepName + "'",
+            nepName, name.getValueName());
+        assertEquals("Client nep should support 2 kind of cep",
+            2, nep.getSupportedCepLayerProtocolQualifier().size());
+        assertThat("client nep should support 2 kind of cep",
+            nep.getSupportedCepLayerProtocolQualifier(),
+            hasItems(ODUTYPEODU2E.class, DIGITALSIGNALTYPE10GigELAN.class));
+        assertEquals("client nep should be of ETH protocol type", LayerProtocolName.ETH, nep.getLayerProtocolName());
+        checkCommonPartOfNep(nep, false);
+    }
+
+    private void checkNepNetworkODU4(OwnedNodeEdgePoint nep, Uuid nepUuid, String portName, String nepName) {
+        assertEquals("bad uuid for " + portName, nepUuid, nep.getUuid());
+        List<Name> nameList = new ArrayList<>(nep.nonnullName().values());
+        Name name = nameList.get(0);
+        assertEquals("value of network nep should be '" + portName + "'",
+            portName, name.getValue());
+        assertEquals("value-name of client nep for '" + portName + "' should be '" + nepName + "'",
+            nepName, name.getValueName());
+        assertEquals("Network nep should support 1 kind of cep",
+            1, nep.getSupportedCepLayerProtocolQualifier().size());
+        assertThat("network nep should support 1 kind of cep",
+            nep.getSupportedCepLayerProtocolQualifier(),
+            hasItem(ODUTYPEODU4.class));
+        assertEquals("network nep should be of ODU protocol type", LayerProtocolName.ODU, nep.getLayerProtocolName());
+        checkCommonPartOfNep(nep, false);
+    }
+
+    private void checkNodeRuleGroupForMuxDSR(List<NodeRuleGroup> nrgList, Uuid clientNepUuid, Uuid networkNepUuid,
+        Uuid nodeUuid) {
+        assertEquals("muxponder DSR should contain 4 node rule group", 4, nrgList.size());
+        for (NodeRuleGroup nodeRuleGroup : nrgList) {
+            assertEquals("each node-rule-group should contain 2 NEP for muxponder DSR",
+                2, nodeRuleGroup.getNodeEdgePoint().size());
+        }
+        List<NodeEdgePoint> nodeEdgePointList = new ArrayList<>(nrgList.get(0).nonnullNodeEdgePoint().values());
+        assertThat("node-rule-group nb 2 should be between nep-client4 and nep-network1",
+            nodeEdgePointList.get(0).getNodeEdgePointUuid().getValue(),
+            either(containsString(networkNepUuid.getValue())).or(containsString(clientNepUuid.getValue())));
+        assertThat("node-rule-group nb 2 should be between nep-client4 and nep-network1",
+            nodeEdgePointList.get(1).getNodeEdgePointUuid().getValue(),
+            either(containsString(networkNepUuid.getValue())).or(containsString(clientNepUuid.getValue())));
+        assertEquals("node-rule-group nb 2 should be between nep-client4 and nep-network1 of the same node",
+            nodeEdgePointList.get(0).getNodeUuid(), nodeUuid);
+        assertEquals("node-rule-group nb 2 should be between nep-client4 and nep-network1 of the same node",
+            nodeEdgePointList.get(1).getNodeUuid(), nodeUuid);
+        List<Rule> rule = new ArrayList<>(nrgList.get(1).nonnullRule().values());
+        assertEquals("node-rule-group nb 2 should contain a single rule", 1, rule.size());
+        assertEquals("local-id of the rule should be 'forward'",
+            "forward", rule.get(0).getLocalId());
+        assertEquals("the forwarding rule should be 'MAYFORWARDACROSSGROUP'",
+            ForwardingRule.MAYFORWARDACROSSGROUP, rule.get(0).getForwardingRule());
+        assertEquals("the rule type should be 'FORWARDING'",
+            RuleType.FORWARDING, rule.get(0).getRuleType());
+    }
+
+    private void checkNodeRuleGroupForSwitchDSR(List<NodeRuleGroup> nrgList, Uuid clientNepUuid, Uuid networkNepUuid,
+        Uuid nodeUuid) {
+        assertEquals("Switch-DSR should contain a single node rule group", 1, nrgList.size());
+        assertEquals("Switch-DSR node-rule-group should contain 8 NEP", 8, nrgList.get(0).getNodeEdgePoint().size());
+        List<NodeEdgePoint> nrg = nrgList.get(0).nonnullNodeEdgePoint().values().stream()
+            .sorted((nrg1, nrg2) -> nrg1.getNodeEdgePointUuid().getValue()
+                .compareTo(nrg2.getNodeEdgePointUuid().getValue()))
+            .collect(Collectors.toList());
+        assertEquals("in the sorted node-rule-group, nep number 2 should be XPDR2-NETWORK1",
+            networkNepUuid, nrg.get(4).getNodeEdgePointUuid());
+        assertEquals("in the sorted node-rule-group, nep number 6 should be XPDR2-CLIENT4",
+            clientNepUuid, nrg.get(3).getNodeEdgePointUuid());
+        assertEquals("any item of the node-rule-group should have the same nodeUuid",
+            nodeUuid, nrg.get(4).getNodeUuid());
+        assertEquals("any item of the node-rule-group should have the same nodeUuid",
+            nodeUuid, nrg.get(3).getNodeUuid());
+        @Nullable
+        List<Rule> ruleList = new ArrayList<>(nrgList.get(0).nonnullRule().values());
+        assertEquals("node-rule-group should contain a single rule", 1, ruleList.size());
+        assertEquals("local-id of the rule should be 'forward'",
+            "forward", ruleList.get(0).getLocalId());
+        assertEquals("the forwarding rule should be 'MAYFORWARDACROSSGROUP'",
+            ForwardingRule.MAYFORWARDACROSSGROUP, ruleList.get(0).getForwardingRule());
+        assertEquals("the rule type should be 'FORWARDING'",
+            RuleType.FORWARDING, ruleList.get(0).getRuleType());
+    }
+
+    private void checkNodeRuleGroupForMuxOTSi(List<NodeRuleGroup> nrgList, Uuid enepUuid, Uuid inepUuid,
+        Uuid nodeUuid) {
+        assertEquals("Mux-OTSi should contain a single node rule group", 1, nrgList.size());
+        List<NodeEdgePoint> nodeEdgePointList = new ArrayList<>(nrgList.get(0).getNodeEdgePoint().values());
+        assertEquals("Mux-OTSi node-rule-group should contain 2 NEP", 2, nodeEdgePointList.size());
+        assertThat("Mux-OTSi node-rule-group should be between eNEP and iNEP of XPDR1-NETWORK1",
+            nodeEdgePointList.get(0).getNodeEdgePointUuid().getValue(),
+            either(containsString(enepUuid.getValue())).or(containsString(inepUuid.getValue())));
+        assertThat("Mux-OTSi node-rule-group should be between eNEP and iNEP of XPDR1-NETWORK1",
+            nodeEdgePointList.get(1).getNodeEdgePointUuid().getValue(),
+            either(containsString(enepUuid.getValue())).or(containsString(inepUuid.getValue())));
+        assertEquals("any item of the node-rule-group should have the same nodeUuid",
+            nodeUuid, nodeEdgePointList.get(0).getNodeUuid());
+        assertEquals("any item of the node-rule-group should have the same nodeUuid",
+            nodeUuid, nodeEdgePointList.get(1).getNodeUuid());
+        List<Rule> ruleList = new ArrayList<>(nrgList.get(0).nonnullRule().values());
+        assertEquals("node-rule-group should contain a single rule", 1, ruleList.size());
+        assertEquals("local-id of the rule should be 'forward'",
+            "forward", ruleList.get(0).getLocalId());
+        assertEquals("the forwarding rule should be 'MAYFORWARDACROSSGROUP'",
+            ForwardingRule.MAYFORWARDACROSSGROUP, ruleList.get(0).getForwardingRule());
+        assertEquals("the rule type should be 'FORWARDING'",
+            RuleType.FORWARDING, ruleList.get(0).getRuleType());
+    }
+
+    private void checkNodeRuleGroupForSwitchOTSi(List<NodeRuleGroup> nrgList, Uuid enepUuid, Uuid inepUuid,
+        Uuid nodeUuid) {
+        assertEquals("Switch-OTSi should contain 4 node rule group", 4, nrgList.size());
+        for (NodeRuleGroup nodeRuleGroup : nrgList) {
+            assertEquals("each node-rule-group should contain 2 NEP for Switch-OTSi",
+                2, nodeRuleGroup.getNodeEdgePoint().size());
+        }
+        List<NodeEdgePoint> nodeEdgePointList1 = new ArrayList<>(nrgList.get(3).nonnullNodeEdgePoint().values());
+        assertThat("Switch-OTSi node-rule-group nb 4 should be between eNEP and iNEP of XPDR2-NETWORK2",
+            nodeEdgePointList1.get(0).getNodeEdgePointUuid().getValue(),
+            either(containsString(enepUuid.getValue())).or(containsString(inepUuid.getValue())));
+        assertThat("Switch-OTSi node-rule-group nb 4 should be between eNEP and iNEP of XPDR2-NETWORK2",
+            nodeEdgePointList1.get(1).getNodeEdgePointUuid().getValue(),
+            either(containsString(enepUuid.getValue())).or(containsString(inepUuid.getValue())));
+        List<NodeEdgePoint> nodeEdgePointList0 = new ArrayList<>(nrgList.get(0).getNodeEdgePoint().values());
+        assertEquals("any item of the node-rule-group should have the same nodeUuid",
+            nodeUuid, nodeEdgePointList0.get(0).getNodeUuid());
+        assertEquals("any item of the node-rule-group should have the same nodeUuid",
+            nodeUuid, nodeEdgePointList0.get(1).getNodeUuid());
+        List<Rule> ruleList0 = new ArrayList<>(nrgList.get(0).nonnullRule().values());
+        assertEquals("node-rule-group should contain a single rule", 1, ruleList0.size());
+        assertEquals("local-id of the rule should be 'forward'",
+            "forward", ruleList0.get(0).getLocalId());
+        assertEquals("the forwarding rule should be 'MAYFORWARDACROSSGROUP'",
+            ForwardingRule.MAYFORWARDACROSSGROUP, ruleList0.get(0).getForwardingRule());
+        assertEquals("the rule type should be 'FORWARDING'",
+            RuleType.FORWARDING, ruleList0.get(0).getRuleType());
+    }
+
+    private void checkNepClient100G(OwnedNodeEdgePoint nep, Uuid nepUuid, String portName, String nepName) {
+        assertEquals("bad uuid for " + portName, nepUuid, nep.getUuid());
+        List<Name> nameList = new ArrayList<>(nep.nonnullName().values());
+        assertEquals("value of client nep should be '" + portName + "'",
+            portName, nameList.get(0).getValue());
+        assertEquals("value-name of client nep for '" + portName + "' should be '" + nepName + "'",
+            nepName, nameList.get(0).getValueName());
+        assertEquals("Client nep should support 2 kind of cep",
+            2, nep.getSupportedCepLayerProtocolQualifier().size());
+        assertThat("client nep should support 2 kind of cep",
+            nep.getSupportedCepLayerProtocolQualifier(),
+            hasItems(ODUTYPEODU4.class, DIGITALSIGNALTYPE100GigE.class));
+        assertEquals("client nep should be of ETH protocol type", LayerProtocolName.ETH, nep.getLayerProtocolName());
+        checkCommonPartOfNep(nep, false);
+    }
+
+    private void checkNepOtsiNode(OwnedNodeEdgePoint nep, Uuid nepUuid, String portName, String nepName) {
+        assertEquals("bad uuid for " + portName, nepUuid, nep.getUuid());
+        List<Name> nameList = new ArrayList<>(nep.nonnullName().values());
+        assertEquals("value of OTSi nep should be '" + portName + "'",
+            portName, nameList.get(0).getValue());
+        assertEquals("value-name of OTSi nep should be '" + nepName + "'",
+            nepName, nameList.get(0).getValueName());
+        assertEquals("OTSi nep should support 2 kind of cep",
+            2, nep.getSupportedCepLayerProtocolQualifier().size());
+        assertThat("OTSi nep should support 2 kind of cep",
+            nep.getSupportedCepLayerProtocolQualifier(),
+            hasItems(PHOTONICLAYERQUALIFIEROMS.class, PHOTONICLAYERQUALIFIEROTSi.class));
+        assertEquals("OTSi nep should be of PHOTONIC_MEDIA protocol type",
+            LayerProtocolName.PHOTONICMEDIA, nep.getLayerProtocolName());
+        assertEquals("OTSi nep should support one SIP", 1, nep.getMappedServiceInterfacePoint().size());
+        checkCommonPartOfNep(nep, false);
+    }
+
+    private void checkNepOtsiRdmNode(OwnedNodeEdgePoint nep, Uuid nepUuid, String portName, String nepName) {
+        assertEquals("bad uuid for " + portName, nepUuid, nep.getUuid());
+        List<Name> nameList = new ArrayList<>(nep.nonnullName().values());
+        assertEquals("value of OTSi nep should be '" + portName + "'",
+            portName, nameList.get(0).getValue());
+        assertEquals("value-name of OTSi nep should be '" + nepName + "'",
+            nepName, nameList.get(0).getValueName());
+        assertEquals("OTSi nep of RDM infra node should support only 1 kind of cep",
+            1, nep.getSupportedCepLayerProtocolQualifier().size());
+        assertThat("OTSi nep should support 2 kind of cep",
+            nep.getSupportedCepLayerProtocolQualifier(),
+            hasItems(PHOTONICLAYERQUALIFIEROMS.class));
+        assertEquals("OTSi nep should be of PHOTONIC_MEDIA protocol type",
+            LayerProtocolName.PHOTONICMEDIA, nep.getLayerProtocolName());
+        assertEquals("OTSi nep of RDM infra should support no SIP", 0, nep.nonnullMappedServiceInterfacePoint().size());
+        checkCommonPartOfNep(nep, true);
+    }
+
+    private void checkCommonPartOfNep(OwnedNodeEdgePoint nep, boolean isRdm) {
+        assertEquals("link port direction should be DIRECTIONAL",
+            PortDirection.BIDIRECTIONAL, nep.getLinkPortDirection());
+        assertEquals("administrative state should be UNLOCKED",
+            AdministrativeState.UNLOCKED, nep.getAdministrativeState());
+        assertEquals("termination state should be TERMINATED BIDIRECTIONAL",
+            TerminationState.TERMINATEDBIDIRECTIONAL, nep.getTerminationState());
+        assertEquals("life-cycle state should be INSTALLED", LifecycleState.INSTALLED, nep.getLifecycleState());
+        if (!isRdm) {
+            assertEquals("client nep should support 1 SIP", 1, nep.getMappedServiceInterfacePoint().size());
+        }
+        assertEquals("termination direction should be BIDIRECTIONAL",
+            TerminationDirection.BIDIRECTIONAL, nep.getTerminationDirection());
+        assertEquals("operational state of client nep should be ENABLED",
+            OperationalState.ENABLED, nep.getOperationalState());
+        assertEquals("link-port-role of client nep should be SYMMETRIC",
+            PortRole.SYMMETRIC, nep.getLinkPortRole());
+    }
+
+    private void checkTransitionalLink(Link link, Uuid node1Uuid, Uuid node2Uuid, String tp1, String tp2,
+        String ietfNodeId) {
+        Uuid linkUuid = new Uuid(UUID.nameUUIDFromBytes((ietfNodeId + "--" + tp1 + "--" + tp2)
+            .getBytes(Charset.forName("UTF-8"))).toString());
+        assertEquals("bad uuid for link between DSR node " + tp1 + " and iOTSI port " + tp2, linkUuid, link.getUuid());
+        assertEquals("Available capacity unit should be GBPS",
+            CapacityUnit.GBPS, link.getAvailableCapacity().getTotalSize().getUnit());
+        assertEquals("Available capacity -total size value should be 100",
+            Uint64.valueOf(100), link.getAvailableCapacity().getTotalSize().getValue());
+        assertEquals("transitional link should be between 2 nodes of protocol layers ODU and PHOTONIC_MEDIA",
+            2, link.getTransitionedLayerProtocolName().size());
+        assertThat("transitional link should be between 2 nodes of protocol layers ODU and PHOTONIC_MEDIA",
+            link.getTransitionedLayerProtocolName(),
+            hasItems(LayerProtocolName.ODU.getName(), LayerProtocolName.PHOTONICMEDIA.getName()));
+        assertEquals("transitional link should be BIDIRECTIONAL",
+            ForwardingDirection.BIDIRECTIONAL, link.getDirection());
+        List<org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210
+            .link.NodeEdgePoint> nodeEdgePointList = new ArrayList<>(link.nonnullNodeEdgePoint().values());
+        assertEquals("topology uuid should be the same for the two termination point of the link",
+            topologyUuid, nodeEdgePointList.get(0).getTopologyUuid());
+        assertEquals("topology uuid should be the same for the two termination point of the link",
+            topologyUuid, nodeEdgePointList.get(1).getTopologyUuid());
+        assertThat("transitional links should terminate on DSR node and Photonic node",
+            nodeEdgePointList.get(0).getNodeUuid().getValue(),
+            either(containsString(node1Uuid.getValue())).or(containsString(node2Uuid.getValue())));
+        assertThat("transitional links should terminate on DSR node and Photonic node",
+            nodeEdgePointList.get(1).getNodeUuid().getValue(),
+            either(containsString(node1Uuid.getValue())).or(containsString(node2Uuid.getValue())));
+        Uuid nep1Uuid = new Uuid(UUID.nameUUIDFromBytes(tp1.getBytes(Charset.forName("UTF-8"))).toString());
+        Uuid nep2Uuid = new Uuid(UUID.nameUUIDFromBytes(tp2.getBytes(Charset.forName("UTF-8"))).toString());
+        assertThat("transitional links should terminate on " + tp1 + " and " + tp2 + " neps",
+            nodeEdgePointList.get(0).getNodeEdgePointUuid().getValue(),
+            either(containsString(nep1Uuid.getValue())).or(containsString(nep2Uuid.getValue())));
+        assertThat("transitional links should terminate on DSR node and Photonic node",
+            nodeEdgePointList.get(1).getNodeEdgePointUuid().getValue(),
+            either(containsString(nep1Uuid.getValue())).or(containsString(nep2Uuid.getValue())));
+    }
+
+    private void checkOtnLink(Link link, Uuid node1Uuid, Uuid node2Uuid, Uuid tp1Uuid, Uuid tp2Uuid, Uuid linkUuid,
+        String linkName) {
+        assertEquals("bad name for the link", linkName, link.getName().get(new NameKey("otn link name")).getValue());
+        assertEquals("bad uuid for link", linkUuid, link.getUuid());
+        assertEquals("Available capacity unit should be MBPS",
+            CapacityUnit.MBPS, link.getAvailableCapacity().getTotalSize().getUnit());
+        String prefix = linkName.split("-")[0];
+        if ("OTU4".equals(prefix)) {
+            assertEquals("Available capacity -total size value should be 0",
+                Uint64.valueOf(0), link.getAvailableCapacity().getTotalSize().getValue());
+        } else if ("ODU4".equals(prefix)) {
+            assertEquals("Available capacity -total size value should be 100 000",
+                Uint64.valueOf(100000), link.getAvailableCapacity().getTotalSize().getValue());
+        }
+        assertEquals("Total capacity unit should be GBPS",
+            CapacityUnit.GBPS, link.getTotalPotentialCapacity().getTotalSize().getUnit());
+        assertEquals("Total capacity -total size value should be 100",
+            Uint64.valueOf(100), link.getTotalPotentialCapacity().getTotalSize().getValue());
+        if ("OTU4".equals(prefix)) {
+            assertEquals("otn link should be between 2 nodes of protocol layers PHOTONIC_MEDIA",
+                LayerProtocolName.PHOTONICMEDIA.getName(), link.getLayerProtocolName().get(0).getName());
+        } else if ("ODU4".equals(prefix)) {
+            assertEquals("otn link should be between 2 nodes of protocol layers ODU",
+                LayerProtocolName.ODU.getName(), link.getLayerProtocolName().get(0).getName());
+        }
+        assertEquals("otn tapi link should be BIDIRECTIONAL",
+            ForwardingDirection.BIDIRECTIONAL, link.getDirection());
+        List<org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210
+            .link.NodeEdgePoint> nodeEdgePointList = new ArrayList<>(link.nonnullNodeEdgePoint().values());
+        assertEquals("topology uuid should be the same for the two termination point of the link",
+            topologyUuid, nodeEdgePointList.get(0).getTopologyUuid());
+        assertEquals("topology uuid should be the same for the two termination point of the link",
+            topologyUuid, nodeEdgePointList.get(1).getTopologyUuid());
+        assertThat("otn links should terminate on two distinct nodes",
+            nodeEdgePointList.get(0).getNodeUuid().getValue(),
+            either(containsString(node1Uuid.getValue())).or(containsString(node2Uuid.getValue())));
+        assertThat("otn links should terminate on two distinct nodes",
+            nodeEdgePointList.get(1).getNodeUuid().getValue(),
+            either(containsString(node1Uuid.getValue())).or(containsString(node2Uuid.getValue())));
+        assertThat("otn links should terminate on two distinct tps",
+            nodeEdgePointList.get(0).getNodeEdgePointUuid().getValue(),
+            either(containsString(tp1Uuid.getValue())).or(containsString(tp2Uuid.getValue())));
+        assertThat("otn links should terminate on two distinct tps",
+            nodeEdgePointList.get(1).getNodeEdgePointUuid().getValue(),
+            either(containsString(tp1Uuid.getValue())).or(containsString(tp2Uuid.getValue())));
+        assertEquals("operational state should be ENABLED",
+            OperationalState.ENABLED, link.getOperationalState());
+        assertEquals("administrative state should be UNLOCKED",
+            AdministrativeState.UNLOCKED, link.getAdministrativeState());
+    }
+
+    private void checkOmsLink(Link link, Uuid node1Uuid, Uuid node2Uuid, Uuid tp1Uuid, Uuid tp2Uuid, Uuid linkUuid,
+        String linkName) {
+        assertEquals("bad name for the link", linkName, link.getName().get(new NameKey("OMS link name")).getValue());
+        assertEquals("bad uuid for link", linkUuid, link.getUuid());
+        assertEquals("oms link should be between 2 nodes of protocol layers PHOTONIC_MEDIA",
+            LayerProtocolName.PHOTONICMEDIA.getName(), link.getLayerProtocolName().get(0).getName());
+        assertEquals("otn tapi link should be BIDIRECTIONAL",
+            ForwardingDirection.BIDIRECTIONAL, link.getDirection());
+        List<org.opendaylight.yang.gen.v1.urn.onf.otcc.yang.tapi.topology.rev181210
+            .link.NodeEdgePoint> nodeEdgePointList = new ArrayList<>(link.nonnullNodeEdgePoint().values());
+        assertEquals("oms link should be between 2 neps",2 , nodeEdgePointList.size());
+        assertEquals("topology uuid should be the same for the two termination point of the link",
+            topologyUuid, nodeEdgePointList.get(0).getTopologyUuid());
+        assertEquals("topology uuid should be the same for the two termination point of the link",
+            topologyUuid, nodeEdgePointList.get(1).getTopologyUuid());
+        assertThat("oms links should terminate on two distinct nodes",
+            nodeEdgePointList.get(0).getNodeUuid().getValue(),
+            either(containsString(node1Uuid.getValue())).or(containsString(node2Uuid.getValue())));
+        assertThat("oms links should terminate on two distinct nodes",
+            nodeEdgePointList.get(1).getNodeUuid().getValue(),
+            either(containsString(node1Uuid.getValue())).or(containsString(node2Uuid.getValue())));
+        assertThat("oms links should terminate on two distinct tps",
+            nodeEdgePointList.get(0).getNodeEdgePointUuid().getValue(),
+            either(containsString(tp1Uuid.getValue())).or(containsString(tp2Uuid.getValue())));
+        assertThat("oms links should terminate on two distinct tps",
+            nodeEdgePointList.get(1).getNodeEdgePointUuid().getValue(),
+            either(containsString(tp1Uuid.getValue())).or(containsString(tp2Uuid.getValue())));
+    }
+
+}