diff --git a/src/test/java/org/opencord/kafka/integrations/DeviceKafkaIntegrationTest.java b/src/test/java/org/opencord/kafka/integrations/DeviceKafkaIntegrationTest.java
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+++ b/src/test/java/org/opencord/kafka/integrations/DeviceKafkaIntegrationTest.java
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+/*
+ * 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.opencord.kafka.integrations;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import org.onosproject.net.device.DeviceEvent;
+import org.opencord.kafka.EventBusService;
+
+import static org.junit.Assert.assertEquals;
+import static org.opencord.kafka.integrations.MockDeviceService.DEVICE_ID_1;
+
+/**
+ * set of unit test cases for DeviceKafkaIntegration.
+ */
+class DeviceKafkaIntegrationTest extends KafkaIntegrationTestBase {
+    private DeviceKafkaIntegration deviceKafkaIntegration;
+
+    @BeforeEach
+    void setUp() {
+        deviceKafkaIntegration = new DeviceKafkaIntegration();
+        deviceKafkaIntegration.eventBusService = new MockEventBusService();
+        deviceKafkaIntegration.deviceService = new MockDeviceService();
+        deviceKafkaIntegration.activate();
+    }
+
+    @AfterEach
+    void tearDown() {
+        deviceKafkaIntegration.deactivate();
+    }
+
+    /**
+     * testcase to verify Port updated event.
+     */
+    @Test
+    void testPortStateUpdate() {
+        DeviceEvent event = new DeviceEvent(DeviceEvent.Type.PORT_UPDATED,
+                deviceKafkaIntegration.deviceService.getDevice(DEVICE_ID_1),
+                new MockDeviceService.MockPort());
+        deviceKafkaIntegration.listener.event(event);
+        assertEquals(MockEventBusService.events, 1);
+        assertEquals(MockEventBusService.otherCounter, 0);
+    }
+
+    /**
+     * testcase to verify Port stats update event.
+     */
+    @Test
+    void testPortStatsUpdate() {
+        DeviceEvent event = new DeviceEvent(DeviceEvent.Type.PORT_STATS_UPDATED,
+                deviceKafkaIntegration.deviceService.getDevice(DEVICE_ID_1),
+                new MockDeviceService.MockPort());
+        deviceKafkaIntegration.listener.event(event);
+        assertEquals(MockEventBusService.kpis, 1);
+        assertEquals(MockEventBusService.otherCounter, 0);
+    }
+
+    private static class MockEventBusService implements EventBusService {
+        static int kpis;
+        static int events;
+        static int otherCounter;
+
+        MockEventBusService() {
+            kpis = 0;
+            events = 0;
+            otherCounter = 0;
+        }
+
+        @Override
+        public void send(String topic, JsonNode data) {
+            switch (topic) {
+                case DeviceKafkaIntegration.TOPIC:
+                    kpis++;
+                    break;
+                case DeviceKafkaIntegration.PORT_EVENT_TOPIC:
+                    events++;
+                    break;
+                default:
+                    otherCounter++;
+                    break;
+            }
+        }
+    }
+}
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