diff --git a/incubator/net/src/test/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkManagerTest.java b/incubator/net/src/test/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkManagerTest.java
index 629dd56..dbb036b 100644
--- a/incubator/net/src/test/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkManagerTest.java
+++ b/incubator/net/src/test/java/org/onosproject/incubator/net/virtual/impl/VirtualNetworkManagerTest.java
@@ -48,7 +48,6 @@
 import org.onosproject.net.Link;
 import org.onosproject.net.NetTestTools;
 import org.onosproject.net.PortNumber;
-import org.onosproject.net.TestDeviceParams;
 import org.onosproject.net.intent.FakeIntentManager;
 import org.onosproject.net.intent.Intent;
 import org.onosproject.net.intent.IntentState;
@@ -59,10 +58,11 @@
 import org.onosproject.net.topology.TopologyService;
 import org.onosproject.store.service.TestStorageService;
 
-import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
+import java.util.ArrayList;
 import java.util.Set;
+import java.util.HashSet;
 import java.util.concurrent.atomic.AtomicLong;
 
 import static org.junit.Assert.*;
@@ -71,7 +71,7 @@
 /**
  * Junit tests for VirtualNetworkManager.
  */
-public class VirtualNetworkManagerTest extends TestDeviceParams {
+public class VirtualNetworkManagerTest extends VirtualNetworkTestUtil {
     private final String tenantIdValue1 = "TENANT_ID1";
     private final String tenantIdValue2 = "TENANT_ID2";
 
@@ -280,6 +280,105 @@
     }
 
     /**
+     * Tests getting a collection of physical device identifier corresponding to
+     * the specified virtual device.
+     */
+    @Test
+    public void testGetPhysicalDevices() {
+        manager.registerTenantId(TenantId.tenantId(tenantIdValue1));
+        manager.registerTenantId(TenantId.tenantId(tenantIdValue2));
+
+        VirtualNetwork virtualNetwork1 =
+                manager.createVirtualNetwork(TenantId.tenantId(tenantIdValue1));
+        VirtualNetwork virtualNetwork2 =
+                manager.createVirtualNetwork(TenantId.tenantId(tenantIdValue2));
+
+        // two virtual device in first virtual network
+        VirtualDevice vDevice1InVnet1 =
+                manager.createVirtualDevice(virtualNetwork1.id(), DID1);
+        VirtualDevice vDevice2InVnet1 =
+                manager.createVirtualDevice(virtualNetwork1.id(), DID2);
+        // Two virtual device in second virtual network
+        VirtualDevice vDevice1InVnet2 =
+                manager.createVirtualDevice(virtualNetwork2.id(), DID1);
+        VirtualDevice vDevice2InVnet2 =
+                manager.createVirtualDevice(virtualNetwork2.id(), DID2);
+
+        // Connection Point from each physical device
+        // Virtual network 1
+        ConnectPoint cp1InVnet1 =
+                new ConnectPoint(PHYDID1, PortNumber.portNumber(10));
+        ConnectPoint cp2InVnet1 =
+                new ConnectPoint(PHYDID2, PortNumber.portNumber(20));
+        ConnectPoint cp3InVnet1 =
+                new ConnectPoint(PHYDID3, PortNumber.portNumber(30));
+        ConnectPoint cp4InVnet1 =
+                new ConnectPoint(PHYDID4, PortNumber.portNumber(40));
+        // Virtual network 2
+        ConnectPoint cp1InVnet2 =
+                new ConnectPoint(PHYDID1, PortNumber.portNumber(10));
+        ConnectPoint cp2InVnet2 =
+                new ConnectPoint(PHYDID2, PortNumber.portNumber(20));
+        ConnectPoint cp3InVnet2 =
+                new ConnectPoint(PHYDID3, PortNumber.portNumber(30));
+        ConnectPoint cp4InVnet2 =
+                new ConnectPoint(PHYDID4, PortNumber.portNumber(40));
+
+        // Make simple BigSwitch by mapping two phyDevice to one vDevice
+        // First vDevice in first virtual network
+        manager.createVirtualPort(virtualNetwork1.id(),
+                vDevice1InVnet1.id(), PortNumber.portNumber(1), cp1InVnet1);
+        manager.createVirtualPort(virtualNetwork1.id(),
+                vDevice1InVnet1.id(), PortNumber.portNumber(2), cp2InVnet1);
+        // Second vDevice in first virtual network
+        manager.createVirtualPort(virtualNetwork1.id(),
+                vDevice2InVnet1.id(), PortNumber.portNumber(1), cp3InVnet1);
+        manager.createVirtualPort(virtualNetwork1.id(),
+                vDevice2InVnet1.id(), PortNumber.portNumber(2), cp4InVnet1);
+        // First vDevice in second virtual network
+        manager.createVirtualPort(virtualNetwork2.id(),
+                vDevice1InVnet2.id(), PortNumber.portNumber(1), cp1InVnet2);
+        manager.createVirtualPort(virtualNetwork2.id(),
+                vDevice1InVnet2.id(), PortNumber.portNumber(2), cp2InVnet2);
+        // Second vDevice in second virtual network
+        manager.createVirtualPort(virtualNetwork2.id(),
+                vDevice2InVnet2.id(), PortNumber.portNumber(1), cp3InVnet2);
+        manager.createVirtualPort(virtualNetwork2.id(),
+                vDevice2InVnet2.id(), PortNumber.portNumber(2), cp4InVnet2);
+
+
+        Set<DeviceId> physicalDeviceSet;
+        Set<DeviceId> testSet = new HashSet<>();
+        physicalDeviceSet = manager.getPhysicalDevices(virtualNetwork1.id(), vDevice1InVnet1);
+        testSet.add(PHYDID1);
+        testSet.add(PHYDID2);
+        assertEquals("The physical devices 1 did not match", testSet, physicalDeviceSet);
+        physicalDeviceSet.clear();
+        testSet.clear();
+
+        physicalDeviceSet = manager.getPhysicalDevices(virtualNetwork1.id(), vDevice2InVnet1);
+        testSet.add(PHYDID3);
+        testSet.add(PHYDID4);
+        assertEquals("The physical devices 2 did not match", testSet, physicalDeviceSet);
+        physicalDeviceSet.clear();
+        testSet.clear();
+
+        physicalDeviceSet = manager.getPhysicalDevices(virtualNetwork2.id(), vDevice1InVnet2);
+        testSet.add(PHYDID1);
+        testSet.add(PHYDID2);
+        assertEquals("The physical devices 1 did not match", testSet, physicalDeviceSet);
+        physicalDeviceSet.clear();
+        testSet.clear();
+
+        physicalDeviceSet = manager.getPhysicalDevices(virtualNetwork2.id(), vDevice2InVnet2);
+        testSet.add(PHYDID3);
+        testSet.add(PHYDID4);
+        assertEquals("The physical devices 2 did not match", testSet, physicalDeviceSet);
+        physicalDeviceSet.clear();
+        testSet.clear();
+    }
+
+    /**
      * Tests adding a null virtual host.
      */
     @Test(expected = NullPointerException.class)