diff --git a/src/test/org/onosproject/t3/impl/T3TestObjects.java b/src/test/org/onosproject/t3/impl/T3TestObjects.java
new file mode 100644
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+++ b/src/test/org/onosproject/t3/impl/T3TestObjects.java
@@ -0,0 +1,321 @@
+/*
+ * Copyright 2018-present Open Networking Foundation
+ *
+ * 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.t3.impl;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.ImmutableSet;
+import org.onlab.packet.EthType;
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.IpPrefix;
+import org.onlab.packet.MacAddress;
+import org.onlab.packet.VlanId;
+import org.onosproject.core.DefaultApplicationId;
+import org.onosproject.core.GroupId;
+import org.onosproject.net.ConnectPoint;
+import org.onosproject.net.DefaultHost;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.Host;
+import org.onosproject.net.HostId;
+import org.onosproject.net.HostLocation;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.flow.DefaultFlowEntry;
+import org.onosproject.net.flow.DefaultTrafficSelector;
+import org.onosproject.net.flow.DefaultTrafficTreatment;
+import org.onosproject.net.flow.FlowEntry;
+import org.onosproject.net.flow.FlowRule;
+import org.onosproject.net.flow.TrafficSelector;
+import org.onosproject.net.flow.TrafficTreatment;
+import org.onosproject.net.group.DefaultGroup;
+import org.onosproject.net.group.DefaultGroupBucket;
+import org.onosproject.net.group.Group;
+import org.onosproject.net.group.GroupBucket;
+import org.onosproject.net.group.GroupBuckets;
+import org.onosproject.net.provider.ProviderId;
+
+/**
+ * Helper class for objects related to the Troubleshoot Manager Test.
+ */
+final class T3TestObjects {
+
+    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 = "None";
+    private static final String HOST_TWO_VLAN = "None";
+    private static final String HOST_ONE = HOST_ONE_MAC + "/" + HOST_ONE_VLAN;
+    private static final String HOST_TWO = HOST_TWO_MAC + "/" + HOST_TWO_VLAN;
+
+    //Single Flow Test
+    static final DeviceId SINGLE_FLOW_DEVICE = DeviceId.deviceId("SingleFlowDevice");
+    private static final TrafficSelector SINGLE_FLOW_SELECTOR = DefaultTrafficSelector.builder()
+            .matchInPort(PortNumber.portNumber(1))
+            .matchIPSrc(IpPrefix.valueOf("127.0.0.1/32"))
+            .matchIPDst(IpPrefix.valueOf("127.0.0.2/32"))
+            .build();
+
+    private static final TrafficTreatment OUTPUT_FLOW_TREATMENT = DefaultTrafficTreatment.builder()
+            .setOutput(PortNumber.portNumber(2)).build();
+    private static final FlowRule SINGLE_FLOW = DefaultFlowEntry.builder().forDevice(SINGLE_FLOW_DEVICE)
+            .forTable(0)
+            .withPriority(100)
+            .withSelector(SINGLE_FLOW_SELECTOR)
+            .withTreatment(OUTPUT_FLOW_TREATMENT)
+            .fromApp(new DefaultApplicationId(0, "TestApp"))
+            .makePermanent()
+            .build();
+    static final FlowEntry SINGLE_FLOW_ENTRY = new DefaultFlowEntry(SINGLE_FLOW);
+
+    static final ConnectPoint SINGLE_FLOW_IN_CP = ConnectPoint.deviceConnectPoint(SINGLE_FLOW_DEVICE + "/" + 1);
+
+    static final ConnectPoint SINGLE_FLOW_OUT_CP = ConnectPoint.deviceConnectPoint(SINGLE_FLOW_DEVICE + "/" + 2);
+
+    //Dual Flow Test
+    static final DeviceId DUAL_FLOW_DEVICE = DeviceId.deviceId("DualFlowDevice");
+    private static final TrafficTreatment TRANSITION_FLOW_TREATMENT = DefaultTrafficTreatment.builder()
+            .setVlanId(VlanId.vlanId((short) 100))
+            .transition(10)
+            .build();
+    private static final TrafficSelector VLAN_FLOW_SELECTOR = DefaultTrafficSelector.builder()
+            .matchVlanId(VlanId.vlanId((short) 100))
+            .build();
+    private static final FlowRule FIRST_FLOW = DefaultFlowEntry.builder().forDevice(DUAL_FLOW_DEVICE)
+            .forTable(0)
+            .withPriority(100)
+            .withSelector(SINGLE_FLOW_SELECTOR)
+            .withTreatment(TRANSITION_FLOW_TREATMENT)
+            .fromApp(new DefaultApplicationId(0, "TestApp"))
+            .makePermanent()
+            .build();
+    static final FlowEntry FIRST_FLOW_ENTRY = new DefaultFlowEntry(FIRST_FLOW);
+    private static final FlowRule SECOND_FLOW = DefaultFlowEntry.builder().forDevice(DUAL_FLOW_DEVICE)
+            .forTable(10)
+            .withPriority(100)
+            .withSelector(VLAN_FLOW_SELECTOR)
+            .withTreatment(OUTPUT_FLOW_TREATMENT)
+            .fromApp(new DefaultApplicationId(0, "TestApp"))
+            .makePermanent()
+            .build();
+    static final FlowEntry SECOND_FLOW_ENTRY = new DefaultFlowEntry(SECOND_FLOW);
+
+    static final ConnectPoint DUAL_FLOW_IN_CP = ConnectPoint.deviceConnectPoint(DUAL_FLOW_DEVICE + "/" + 1);
+
+    static final ConnectPoint DUAL_FLOW_OUT_CP = ConnectPoint.deviceConnectPoint(DUAL_FLOW_DEVICE + "/" + 2);
+
+    //Flow and Group Test
+    static final DeviceId GROUP_FLOW_DEVICE = DeviceId.deviceId("GroupFlowDevice");
+
+    private static final GroupId GROUP_ID = GroupId.valueOf(1);
+
+    private static final TrafficTreatment GROUP_FLOW_TREATMENT = DefaultTrafficTreatment.builder()
+            .group(GROUP_ID)
+            .build();
+    private static final FlowRule GROUP_FLOW = DefaultFlowEntry.builder().forDevice(GROUP_FLOW_DEVICE)
+            .forTable(0)
+            .withPriority(100)
+            .withSelector(SINGLE_FLOW_SELECTOR)
+            .withTreatment(GROUP_FLOW_TREATMENT)
+            .fromApp(new DefaultApplicationId(0, "TestApp"))
+            .makePermanent()
+            .build();
+    static final FlowEntry GROUP_FLOW_ENTRY = new DefaultFlowEntry(GROUP_FLOW);
+
+    private static final GroupBucket BUCKET = DefaultGroupBucket.createSelectGroupBucket(OUTPUT_FLOW_TREATMENT);
+
+    private static final GroupBuckets BUCKETS = new GroupBuckets(ImmutableList.of(BUCKET));
+
+    static final Group GROUP = new DefaultGroup(GROUP_ID, GROUP_FLOW_DEVICE, Group.Type.SELECT, BUCKETS);
+
+    static final ConnectPoint GROUP_FLOW_IN_CP = ConnectPoint.deviceConnectPoint(GROUP_FLOW_DEVICE + "/" + 1);
+
+    static final ConnectPoint GROUP_FLOW_OUT_CP = ConnectPoint.deviceConnectPoint(GROUP_FLOW_DEVICE + "/" + 2);
+
+    //topology
+
+    static final DeviceId TOPO_FLOW_DEVICE = DeviceId.deviceId("SingleFlowDevice1");
+
+    static final DeviceId TOPO_FLOW_2_DEVICE = DeviceId.deviceId("SingleFlowDevice2");
+
+    static final DeviceId TOPO_FLOW_3_DEVICE = DeviceId.deviceId("SingleFlowDevice3");
+
+    private static final TrafficSelector TOPO_FLOW_SELECTOR = DefaultTrafficSelector.builder()
+            .matchInPort(PortNumber.portNumber(1))
+            .matchIPSrc(IpPrefix.valueOf("127.0.0.1/32"))
+            .matchIPDst(IpPrefix.valueOf("127.0.0.3/32"))
+            .build();
+
+    private static final FlowRule TOPO_SINGLE_FLOW = DefaultFlowEntry.builder().forDevice(TOPO_FLOW_DEVICE)
+            .forTable(0)
+            .withPriority(100)
+            .withSelector(TOPO_FLOW_SELECTOR)
+            .withTreatment(OUTPUT_FLOW_TREATMENT)
+            .fromApp(new DefaultApplicationId(0, "TestApp"))
+            .makePermanent()
+            .build();
+
+    static final FlowEntry TOPO_SINGLE_FLOW_ENTRY = new DefaultFlowEntry(TOPO_SINGLE_FLOW);
+
+    static final ConnectPoint TOPO_FLOW_1_IN_CP = ConnectPoint.deviceConnectPoint(TOPO_FLOW_DEVICE + "/" + 1);
+
+    static final ConnectPoint TOPO_FLOW_1_OUT_CP = ConnectPoint.deviceConnectPoint(TOPO_FLOW_DEVICE + "/" + 2);
+
+    static final ConnectPoint TOPO_FLOW_2_IN_CP = ConnectPoint.deviceConnectPoint(TOPO_FLOW_2_DEVICE + "/" + 1);
+
+    static final ConnectPoint TOPO_FLOW_2_OUT_CP = ConnectPoint.deviceConnectPoint(TOPO_FLOW_2_DEVICE + "/" + 2);
+
+    static final ConnectPoint TOPO_FLOW_3_IN_CP = ConnectPoint.deviceConnectPoint(TOPO_FLOW_3_DEVICE + "/" + 1);
+
+    static final ConnectPoint TOPO_FLOW_3_OUT_CP = ConnectPoint.deviceConnectPoint(TOPO_FLOW_3_DEVICE + "/" + 2);
+
+
+    //Topology with Groups
+
+    static final DeviceId TOPO_GROUP_FLOW_DEVICE = DeviceId.deviceId("TopoGroupFlowDevice");
+
+    private static final TrafficSelector TOPO_SECOND_INPUT_FLOW_SELECTOR = DefaultTrafficSelector.builder()
+            .matchInPort(PortNumber.portNumber(3))
+            .matchIPSrc(IpPrefix.valueOf("127.0.0.1/32"))
+            .matchIPDst(IpPrefix.valueOf("127.0.0.3/32"))
+            .build();
+
+    private static final FlowRule TOPO_SECOND_INPUT_FLOW = DefaultFlowEntry.builder().forDevice(TOPO_FLOW_3_DEVICE)
+            .forTable(0)
+            .withPriority(100)
+            .withSelector(TOPO_SECOND_INPUT_FLOW_SELECTOR)
+            .withTreatment(OUTPUT_FLOW_TREATMENT)
+            .fromApp(new DefaultApplicationId(0, "TestApp"))
+            .makePermanent()
+            .build();
+
+    private static final TrafficTreatment OUTPUT_2_FLOW_TREATMENT = DefaultTrafficTreatment.builder()
+            .setOutput(PortNumber.portNumber(3)).build();
+
+
+    private static final GroupId TOPO_GROUP_ID = GroupId.valueOf(1);
+
+    private static final TrafficTreatment TOPO_GROUP_FLOW_TREATMENT = DefaultTrafficTreatment.builder()
+            .group(TOPO_GROUP_ID)
+            .build();
+    private static final FlowRule TOPO_GROUP_FLOW = DefaultFlowEntry.builder().forDevice(TOPO_GROUP_FLOW_DEVICE)
+            .forTable(0)
+            .withPriority(100)
+            .withSelector(TOPO_FLOW_SELECTOR)
+            .withTreatment(TOPO_GROUP_FLOW_TREATMENT)
+            .fromApp(new DefaultApplicationId(0, "TestApp"))
+            .makePermanent()
+            .build();
+    static final FlowEntry TOPO_GROUP_FLOW_ENTRY = new DefaultFlowEntry(TOPO_GROUP_FLOW);
+
+    private static final GroupBucket BUCKET_2 = DefaultGroupBucket.createSelectGroupBucket(OUTPUT_2_FLOW_TREATMENT);
+
+    private static final GroupBuckets BUCKETS_MULTIPLE = new GroupBuckets(ImmutableList.of(BUCKET, BUCKET_2));
+
+    static final Group TOPO_GROUP = new DefaultGroup(TOPO_GROUP_ID, TOPO_GROUP_FLOW_DEVICE, Group.Type.SELECT, BUCKETS_MULTIPLE);
+
+    static final FlowEntry TOPO_SECOND_INPUT_FLOW_ENTRY = new DefaultFlowEntry(TOPO_SECOND_INPUT_FLOW);
+
+    static final DeviceId TOPO_FLOW_4_DEVICE = DeviceId.deviceId("SingleFlowDevice4");
+
+    static final ConnectPoint TOPO_FLOW_IN_CP = ConnectPoint.deviceConnectPoint(TOPO_GROUP_FLOW_DEVICE + "/" + 1);
+
+    static final ConnectPoint TOPO_FLOW_OUT_CP_1 = ConnectPoint.deviceConnectPoint(TOPO_GROUP_FLOW_DEVICE + "/" + 2);
+
+    protected static final ConnectPoint TOPO_FLOW_OUT_CP_2 = ConnectPoint.deviceConnectPoint(TOPO_GROUP_FLOW_DEVICE + "/" + 3);
+
+    static final ConnectPoint TOPO_FLOW_4_IN_CP = ConnectPoint.deviceConnectPoint(TOPO_FLOW_4_DEVICE + "/" + 1);
+
+    static final ConnectPoint TOPO_FLOW_3_IN_2_CP = ConnectPoint.deviceConnectPoint(TOPO_FLOW_3_DEVICE + "/" + 3);
+
+    static final ConnectPoint TOPO_FLOW_4_OUT_CP = ConnectPoint.deviceConnectPoint(TOPO_FLOW_4_DEVICE + "/" + 2);
+
+
+    //hardware
+
+    static final DeviceId HARDWARE_DEVICE = DeviceId.deviceId("HardwareDevice");
+
+    static final ConnectPoint HARDWARE_DEVICE_IN_CP = ConnectPoint.deviceConnectPoint(HARDWARE_DEVICE + "/" + 1);
+
+    static final ConnectPoint HARDWARE_DEVICE_OUT_CP = ConnectPoint.deviceConnectPoint(HARDWARE_DEVICE + "/" + 2);
+
+    private static final TrafficSelector HARDWARE_FLOW_SELECTOR = DefaultTrafficSelector.builder()
+            .matchInPort(PortNumber.portNumber(1))
+            .matchIPSrc(IpPrefix.valueOf("127.0.0.1/32"))
+            .matchIPDst(IpPrefix.valueOf("127.0.0.2/32"))
+            .build();
+
+    private static final TrafficTreatment HW_TRANSITION_FLOW_TREATMENT = DefaultTrafficTreatment.builder()
+            .pushMpls()
+            .transition(27)
+            .build();
+
+    private static final FlowRule HARDWARE_FLOW = DefaultFlowEntry.builder().forDevice(TOPO_FLOW_3_DEVICE)
+            .forTable(0)
+            .withPriority(100)
+            .withSelector(HARDWARE_FLOW_SELECTOR)
+            .withTreatment(HW_TRANSITION_FLOW_TREATMENT)
+            .fromApp(new DefaultApplicationId(0, "TestApp"))
+            .makePermanent()
+            .build();
+
+    static final FlowEntry HARDWARE_FLOW_ENTRY = new DefaultFlowEntry(HARDWARE_FLOW);
+
+    private static final TrafficSelector HARDWARE_ETH_FLOW_SELECTOR = DefaultTrafficSelector.builder()
+            .matchInPort(PortNumber.portNumber(1))
+            .matchIPSrc(IpPrefix.valueOf("127.0.0.1/32"))
+            .matchIPDst(IpPrefix.valueOf("127.0.0.2/32"))
+            .matchEthType(EthType.EtherType.IPV4.ethType().toShort())
+            .build();
+
+    private static final FlowRule HARDWARE_ETH_FLOW = DefaultFlowEntry.builder().forDevice(TOPO_FLOW_3_DEVICE)
+            .forTable(30)
+            .withPriority(100)
+            .withSelector(HARDWARE_ETH_FLOW_SELECTOR)
+            .withTreatment(OUTPUT_FLOW_TREATMENT)
+            .fromApp(new DefaultApplicationId(0, "TestApp"))
+            .makePermanent()
+            .build();
+
+    static final FlowEntry HARDWARE_ETH_FLOW_ENTRY = new DefaultFlowEntry(HARDWARE_ETH_FLOW);
+
+
+
+
+    //helper elements
+
+    static final Host H1 = new DefaultHost(ProviderId.NONE, HostId.hostId(HOST_ONE), MacAddress.valueOf(100),
+            VlanId.NONE, new HostLocation(SINGLE_FLOW_DEVICE, PortNumber.portNumber(2), 0),
+            ImmutableSet.of(IpAddress.valueOf("127.0.0.2")));
+
+    static final Host H2 = new DefaultHost(ProviderId.NONE, HostId.hostId(HOST_TWO), MacAddress.valueOf(100),
+            VlanId.NONE, new HostLocation(TOPO_FLOW_3_DEVICE, PortNumber.portNumber(2), 0),
+            ImmutableSet.of(IpAddress.valueOf("127.0.0.3")));
+
+    static final TrafficSelector PACKET_OK = DefaultTrafficSelector.builder()
+            .matchInPort(PortNumber.portNumber(1))
+            .matchIPSrc(IpPrefix.valueOf("127.0.0.1/32"))
+            .matchIPDst(IpPrefix.valueOf("127.0.0.2/32"))
+            .build();
+
+    static final TrafficSelector PACKET_OK_TOPO = DefaultTrafficSelector.builder()
+            .matchInPort(PortNumber.portNumber(1))
+            .matchIPSrc(IpPrefix.valueOf("127.0.0.1/32"))
+            .matchIPDst(IpPrefix.valueOf("127.0.0.3/32"))
+            .build();
+
+    static final TrafficSelector PACKET_FAIL = DefaultTrafficSelector.builder()
+            .matchInPort(PortNumber.portNumber(1))
+            .matchIPSrc(IpPrefix.valueOf("127.0.0.1/32"))
+            .matchIPDst(IpPrefix.valueOf("127.0.0.99/32"))
+            .build();
+}