diff --git a/apps/pce/app/src/test/java/org/onosproject/pce/pceservice/PceccSrTeBeHandlerTest.java b/apps/pce/app/src/test/java/org/onosproject/pce/pceservice/PceccSrTeBeHandlerTest.java
new file mode 100644
index 0000000..93f7c69
--- /dev/null
+++ b/apps/pce/app/src/test/java/org/onosproject/pce/pceservice/PceccSrTeBeHandlerTest.java
@@ -0,0 +1,484 @@
+/*
+ * Copyright 2016-present 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.pce.pceservice;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+import static org.hamcrest.Matchers.nullValue;
+
+import static org.onosproject.net.Link.Type.DIRECT;
+
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.List;
+import java.util.LinkedList;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import org.onosproject.incubator.net.resource.label.LabelResourceId;
+import org.onosproject.incubator.net.resource.label.LabelResourceAdminService;
+import org.onosproject.incubator.net.resource.label.LabelResourceService;
+import org.onosproject.incubator.net.tunnel.LabelStack;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DefaultAnnotations;
+import org.onosproject.net.DefaultPath;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.Path;
+import org.onosproject.pce.pcestore.api.PceStore;
+import org.onosproject.net.provider.ProviderId;
+import org.onosproject.pce.util.LabelResourceAdapter;
+import org.onosproject.pce.util.PceStoreAdapter;
+import org.onosproject.net.DefaultLink;
+import org.onosproject.net.Link;
+
+/**
+ * Unit tests for PceccSrTeBeHandler class.
+ */
+public class PceccSrTeBeHandlerTest {
+
+    public static final long GLOBAL_LABEL_SPACE_MIN = 4097;
+    public static final long GLOBAL_LABEL_SPACE_MAX = 5121;
+
+    private PceccSrTeBeHandler srTeHandler;
+    protected LabelResourceAdminService labelRsrcAdminService;
+    protected LabelResourceService labelRsrcService;
+    protected PceStore pceStore;
+    private ProviderId providerId;
+    private DeviceId deviceId1;
+    private DeviceId deviceId2;
+    private DeviceId deviceId3;
+    private DeviceId deviceId4;
+    private DeviceId deviceId5;
+    private PortNumber port1;
+    private PortNumber port2;
+    private PortNumber port3;
+    private PortNumber port4;
+    private PortNumber port5;
+    private Link link1;
+    private Link link2;
+    private Link link3;
+    private Link link4;
+    private Path path1;
+    LabelResourceId labelId;
+    private LabelResourceId labelId1 = LabelResourceId.labelResourceId(4098);
+    private LabelResourceId labelId2 = LabelResourceId.labelResourceId(4099);
+    private Map<DeviceId, String> deviceIdLsrIdMap;
+
+    @Before
+    public void setUp() throws Exception {
+        // Initialization of member variables
+        srTeHandler = PceccSrTeBeHandler.getInstance();
+        labelRsrcService = new LabelResourceAdapter();
+        labelRsrcAdminService = new LabelResourceAdapter();
+        pceStore = new PceStoreAdapter();
+        srTeHandler.initialize(labelRsrcAdminService, labelRsrcService, pceStore);
+
+        // Creates path
+        // Creates list of links
+        providerId = new ProviderId("of", "foo");
+        deviceId1 = DeviceId.deviceId("of:A");
+        deviceId2 = DeviceId.deviceId("of:B");
+        deviceId3 = DeviceId.deviceId("of:C");
+        deviceId4 = DeviceId.deviceId("of:D");
+        deviceId5 = DeviceId.deviceId("of:E");
+        port1 = PortNumber.portNumber(1);
+        port2 = PortNumber.portNumber(2);
+        port3 = PortNumber.portNumber(3);
+        port4 = PortNumber.portNumber(4);
+        port5 = PortNumber.portNumber(5);
+        List<Link> linkList = new LinkedList<>();
+
+        link1 = DefaultLink.builder()
+                .providerId(providerId)
+                .annotations(DefaultAnnotations.builder().set("key1", "yahoo").build())
+                .src(new ConnectPoint(deviceId1, port1))
+                .dst(new ConnectPoint(deviceId2, port2))
+                .type(DIRECT)
+                .state(Link.State.ACTIVE)
+                .build();
+        linkList.add(link1);
+        link2 = DefaultLink.builder()
+                .providerId(providerId)
+                .annotations(DefaultAnnotations.builder().set("key2", "yahoo").build())
+                .src(new ConnectPoint(deviceId2, port2))
+                .dst(new ConnectPoint(deviceId3, port3))
+                .type(DIRECT)
+                .state(Link.State.ACTIVE)
+                .build();
+        linkList.add(link2);
+        link3 = DefaultLink.builder()
+                .providerId(providerId)
+                .annotations(DefaultAnnotations.builder().set("key3", "yahoo").build())
+                .src(new ConnectPoint(deviceId3, port3))
+                .dst(new ConnectPoint(deviceId4, port4))
+                .type(DIRECT)
+                .state(Link.State.ACTIVE)
+                .build();
+        linkList.add(link3);
+        link4 = DefaultLink.builder()
+                .providerId(providerId)
+                .annotations(DefaultAnnotations.builder().set("key4", "yahoo").build())
+                .src(new ConnectPoint(deviceId4, port4))
+                .dst(new ConnectPoint(deviceId5, port5))
+                .type(DIRECT)
+                .state(Link.State.ACTIVE)
+                .build();
+        linkList.add(link4);
+
+        // Path
+        path1 = new DefaultPath(providerId, linkList, 10);
+    }
+
+    @After
+    public void tearDown() throws Exception {
+    }
+
+    /**
+     * Checks the operation of getInstance() method.
+     */
+    @Test
+    public void testGetInstance() {
+        assertThat(srTeHandler, is(notNullValue()));
+    }
+
+    /**
+     * Checks the operation of reserveGlobalPool() method.
+     */
+    @Test
+    public void testReserveGlobalPool() {
+        assertThat(srTeHandler.reserveGlobalPool(GLOBAL_LABEL_SPACE_MIN,
+                GLOBAL_LABEL_SPACE_MAX), is(true));
+    }
+
+    /**
+     * Checks the operation of allocateNodeLabel() method on node label.
+     * Considered some nodes are already available before PceManager came up.
+     */
+    @Test
+    public void testAllocateNodeLabel1() {
+        // Specific device deviceId1
+
+        // Devices mapping with lsr-id
+        deviceIdLsrIdMap = new HashMap<>();
+
+        //device 1
+        String lsrId1 = "11.1.1.1";
+        deviceIdLsrIdMap.put(deviceId1, lsrId1);
+
+        // device 2
+        String lsrId2 = "12.1.1.1";
+        deviceIdLsrIdMap.put(deviceId2, lsrId2);
+
+        // device 3
+        String lsrId3 = "13.1.1.1";
+        deviceIdLsrIdMap.put(deviceId3, lsrId3);
+
+        // device 4
+        String lsrId4 = "14.1.1.1";
+        deviceIdLsrIdMap.put(deviceId4, lsrId4);
+
+        // device 5
+        String lsrId5 = "15.1.1.1";
+        deviceIdLsrIdMap.put(deviceId5, lsrId5);
+
+        // Considered devices are stored in deviceIdLsrIdMap.
+        // Creating temporary tempDeviceIdLsrIdMap to pass to allocateNodeLabel()
+        Map<DeviceId, String> tempDeviceIdLsrIdMap = new HashMap<>();
+        for (Map.Entry element : deviceIdLsrIdMap.entrySet()) {
+            DeviceId devId = (DeviceId) element.getKey();
+            String lsrId = (String) element.getValue();
+
+            // Allocate node label for specific device devId
+            assertThat(srTeHandler.allocateNodeLabel(devId, lsrId, tempDeviceIdLsrIdMap), is(true));
+
+            // Retrieve label from store
+            LabelResourceId labelId = pceStore.getGlobalNodeLabel(devId);
+
+            // Check whether label is generated for this device devId
+            assertThat(labelId, is(notNullValue()));
+
+            //Now add device to tempDeviceIdLsrIdMap
+            tempDeviceIdLsrIdMap.put(devId, lsrId);
+        }
+    }
+
+    /**
+     * Checks the operation of allocateNodeLabel() method on node label.
+     * Considered initially map is empty and keep on getting new devices from event.
+     */
+    @Test
+    public void testAllocateNodeLabel2() {
+        // Specific device deviceId1
+
+        // Device-id mapping with lsr-id
+        deviceIdLsrIdMap = new HashMap<>();
+
+        //device 1
+        String lsrId1 = "11.1.1.1";
+        // Allocate node label for specific device deviceId1
+        assertThat(srTeHandler.allocateNodeLabel(deviceId1, lsrId1, deviceIdLsrIdMap), is(true));
+        // Retrieve label from store
+        LabelResourceId labelId = pceStore.getGlobalNodeLabel(deviceId1);
+        // Check whether label is generated for this device deviceId1
+        assertThat(labelId, is(notNullValue()));
+        //Now add device to deviceIdLsrIdMap
+        deviceIdLsrIdMap.put(deviceId1, lsrId1);
+
+        // device 2
+        String lsrId2 = "12.1.1.1";
+        // Allocate node label for specific device deviceId2
+        assertThat(srTeHandler.allocateNodeLabel(deviceId2, lsrId2, deviceIdLsrIdMap), is(true));
+        // Retrieve label from store
+        labelId = pceStore.getGlobalNodeLabel(deviceId2);
+        // Check whether label is generated for this device deviceId2
+        assertThat(labelId, is(notNullValue()));
+        //Now add device to deviceIdLsrIdMap
+        deviceIdLsrIdMap.put(deviceId2, lsrId2);
+
+        // device 3
+        String lsrId3 = "13.1.1.1";
+        // Allocate node label for specific device deviceId3
+        assertThat(srTeHandler.allocateNodeLabel(deviceId3, lsrId3, deviceIdLsrIdMap), is(true));
+        // Retrieve label from store
+        labelId = pceStore.getGlobalNodeLabel(deviceId3);
+        // Check whether label is generated for this device deviceId3
+        assertThat(labelId, is(notNullValue()));
+        //Now add device to deviceIdLsrIdMap
+        deviceIdLsrIdMap.put(deviceId3, lsrId3);
+
+        // device 4
+        String lsrId4 = "14.1.1.1";
+        // Allocate node label for specific device deviceId4
+        assertThat(srTeHandler.allocateNodeLabel(deviceId4, lsrId4, deviceIdLsrIdMap), is(true));
+        // Retrieve label from store
+        labelId = pceStore.getGlobalNodeLabel(deviceId4);
+        // Check whether label is generated for this device deviceId4
+        assertThat(labelId, is(notNullValue()));
+        //Now add device to deviceIdLsrIdMap
+        deviceIdLsrIdMap.put(deviceId4, lsrId4);
+
+        // device 5
+        String lsrId5 = "15.1.1.1";
+        // Allocate node label for specific device deviceId5
+        assertThat(srTeHandler.allocateNodeLabel(deviceId5, lsrId5, deviceIdLsrIdMap), is(true));
+        // Retrieve label from store
+        labelId = pceStore.getGlobalNodeLabel(deviceId5);
+        // Check whether label is generated for this device deviceId5
+        assertThat(labelId, is(notNullValue()));
+        //Now add device to deviceIdLsrIdMap
+        deviceIdLsrIdMap.put(deviceId5, lsrId5);
+    }
+
+    /**
+     * Checks the operation of releaseNodeLabel() method on node label.
+     */
+    @Test
+    public void testReleaseNodeLabelSuccess() {
+        testAllocateNodeLabel2();
+        // Specific device deviceId1
+
+        //device 1
+        String lsrId1 = "11.1.1.1";
+        // Check whether successfully released node label
+        assertThat(srTeHandler.releaseNodeLabel(deviceId1, lsrId1, deviceIdLsrIdMap), is(true));
+        // Check whether successfully removed label from store
+        LabelResourceId labelId = pceStore.getGlobalNodeLabel(deviceId1);
+        assertThat(labelId, is(nullValue()));
+        // Remove released deviceId1
+        deviceIdLsrIdMap.remove(deviceId1);
+
+        //device 2
+        String lsrId2 = "12.1.1.1";
+        // Check whether successfully released node label
+        assertThat(srTeHandler.releaseNodeLabel(deviceId2, lsrId2, deviceIdLsrIdMap), is(true));
+        // Check whether successfully removed label from store
+        labelId = pceStore.getGlobalNodeLabel(deviceId2);
+        assertThat(labelId, is(nullValue()));
+        // Remove released deviceId2
+        deviceIdLsrIdMap.remove(deviceId2);
+
+        //device 3
+        String lsrId3 = "13.1.1.1";
+        // Check whether successfully released node label
+        assertThat(srTeHandler.releaseNodeLabel(deviceId3, lsrId3, deviceIdLsrIdMap), is(true));
+        // Check whether successfully removed label from store
+        labelId = pceStore.getGlobalNodeLabel(deviceId3);
+        assertThat(labelId, is(nullValue()));
+        // Remove released deviceId3
+        deviceIdLsrIdMap.remove(deviceId3);
+
+        //device 4
+        String lsrId4 = "14.1.1.1";
+        // Check whether successfully released node label
+        assertThat(srTeHandler.releaseNodeLabel(deviceId4, lsrId4, deviceIdLsrIdMap), is(true));
+        // Check whether successfully removed label from store
+        labelId = pceStore.getGlobalNodeLabel(deviceId4);
+        assertThat(labelId, is(nullValue()));
+        // Remove released deviceId4
+        deviceIdLsrIdMap.remove(deviceId4);
+
+        //device 5
+        String lsrId5 = "15.1.1.1";
+        // Check whether successfully released node label
+        assertThat(srTeHandler.releaseNodeLabel(deviceId5, lsrId5, deviceIdLsrIdMap), is(true));
+        // Check whether successfully removed label from store
+        labelId = pceStore.getGlobalNodeLabel(deviceId5);
+        assertThat(labelId, is(nullValue()));
+        // Remove released deviceId5
+        deviceIdLsrIdMap.remove(deviceId5);
+    }
+
+    @Test
+    public void testReleaseNodeLabelFailure() {
+        testAllocateNodeLabel2();
+
+        //device 6
+        String lsrId6 = "16.1.1.1";
+        // Check whether successfully released node label
+        DeviceId deviceId6 = DeviceId.deviceId("foo6");
+        assertThat(srTeHandler.releaseNodeLabel(deviceId6, lsrId6, deviceIdLsrIdMap), is(false));
+    }
+
+    /**
+     * Checks the operation of allocateAdjacencyLabel() method on adjacency label.
+     */
+    @Test
+    public void testAllocateAdjacencyLabel() {
+        // test link1
+        // Check whether adjacency label is allocated successfully.
+        assertThat(srTeHandler.allocateAdjacencyLabel(link1), is(true));
+        // Retrieve from store and check whether adjacency label is generated successfully for this device.
+        LabelResourceId labelId = pceStore.getAdjLabel(link1);
+        assertThat(labelId, is(notNullValue()));
+
+        // test link2
+        // Check whether adjacency label is allocated successfully.
+        assertThat(srTeHandler.allocateAdjacencyLabel(link2), is(true));
+        // Retrieve from store and check whether adjacency label is generated successfully for this device.
+        labelId = pceStore.getAdjLabel(link2);
+        assertThat(labelId, is(notNullValue()));
+
+        // test link3
+        // Check whether adjacency label is allocated successfully.
+        assertThat(srTeHandler.allocateAdjacencyLabel(link3), is(true));
+        // Retrieve from store and check whether adjacency label is generated successfully for this device.
+        labelId = pceStore.getAdjLabel(link3);
+        assertThat(labelId, is(notNullValue()));
+
+        // test link4
+        // Check whether adjacency label is allocated successfully.
+        assertThat(srTeHandler.allocateAdjacencyLabel(link4), is(true));
+        // Retrieve from store and check whether adjacency label is generated successfully for this device.
+        labelId = pceStore.getAdjLabel(link4);
+        assertThat(labelId, is(notNullValue()));
+    }
+
+    /**
+     * Checks the operation of releaseAdjacencyLabel() method on adjacency label.
+     */
+    @Test
+    public void testReleaseAdjacencyLabel() {
+        // Test link1
+        // Check whether adjacency label is released successfully.
+        assertThat(srTeHandler.allocateAdjacencyLabel(link1), is(true));
+        assertThat(srTeHandler.releaseAdjacencyLabel(link1), is(true));
+        // Retrieve from store and check whether adjacency label is removed successfully for this device.
+        LabelResourceId labelId = pceStore.getAdjLabel(link1);
+        assertThat(labelId, is(nullValue()));
+
+        // Test link2
+        // Check whether adjacency label is released successfully.
+        assertThat(srTeHandler.allocateAdjacencyLabel(link2), is(true));
+        assertThat(srTeHandler.releaseAdjacencyLabel(link2), is(true));
+        // Retrieve from store and check whether adjacency label is removed successfully for this device.
+        labelId = pceStore.getAdjLabel(link2);
+        assertThat(labelId, is(nullValue()));
+    }
+
+    /**
+     * Checks the operation of computeLabelStack() method.
+     */
+    @Test
+    public void testComputeLabelStack() {
+        // Allocate node labels to each devices
+        labelId = LabelResourceId.labelResourceId(4097);
+        pceStore.addGlobalNodeLabel(deviceId1, labelId);
+        labelId = LabelResourceId.labelResourceId(4098);
+        pceStore.addGlobalNodeLabel(deviceId2, labelId);
+        labelId = LabelResourceId.labelResourceId(4099);
+        pceStore.addGlobalNodeLabel(deviceId3, labelId);
+        labelId = LabelResourceId.labelResourceId(4100);
+        pceStore.addGlobalNodeLabel(deviceId4, labelId);
+        labelId = LabelResourceId.labelResourceId(4101);
+        pceStore.addGlobalNodeLabel(deviceId5, labelId);
+
+        // Allocate adjacency labels to each devices
+        labelId = LabelResourceId.labelResourceId(5122);
+        pceStore.addAdjLabel(link1, labelId);
+        labelId = LabelResourceId.labelResourceId(5123);
+        pceStore.addAdjLabel(link2, labelId);
+        labelId = LabelResourceId.labelResourceId(5124);
+        pceStore.addAdjLabel(link3, labelId);
+        labelId = LabelResourceId.labelResourceId(5125);
+        pceStore.addAdjLabel(link4, labelId);
+
+        // Compute label stack
+        LabelStack labelStack = srTeHandler.computeLabelStack(path1);
+
+        // check node-label of deviceId1
+        List<LabelResourceId> labelList = labelStack.labelResources();
+        Iterator<LabelResourceId> iterator = labelList.iterator();
+        labelId = (LabelResourceId) iterator.next();
+        assertThat(labelId, is(LabelResourceId.labelResourceId(4097)));
+
+        // check adjacency label of deviceId1
+        labelId = (LabelResourceId) iterator.next();
+        assertThat(labelId, is(LabelResourceId.labelResourceId(5122)));
+
+        // check node-label of deviceId2
+        labelId = (LabelResourceId) iterator.next();
+        assertThat(labelId, is(LabelResourceId.labelResourceId(4098)));
+
+        // check adjacency label of deviceId2
+        labelId = (LabelResourceId) iterator.next();
+        assertThat(labelId, is(LabelResourceId.labelResourceId(5123)));
+
+        // check node-label of deviceId3
+        labelId = (LabelResourceId) iterator.next();
+        assertThat(labelId, is(LabelResourceId.labelResourceId(4099)));
+
+        // check adjacency label of deviceId3
+        labelId = (LabelResourceId) iterator.next();
+        assertThat(labelId, is(LabelResourceId.labelResourceId(5124)));
+
+        // check node-label of deviceId4
+        labelId = (LabelResourceId) iterator.next();
+        assertThat(labelId, is(LabelResourceId.labelResourceId(4100)));
+
+        // check adjacency label of deviceId4
+        labelId = (LabelResourceId) iterator.next();
+        assertThat(labelId, is(LabelResourceId.labelResourceId(5125)));
+
+        // check node-label of deviceId5
+        labelId = (LabelResourceId) iterator.next();
+        assertThat(labelId, is(LabelResourceId.labelResourceId(4101)));
+    }
+}