diff --git a/apps/k8s-node/api/src/test/java/org/onosproject/k8snode/api/DefaultK8sNodeTest.java b/apps/k8s-node/api/src/test/java/org/onosproject/k8snode/api/DefaultK8sNodeTest.java
new file mode 100644
index 0000000..d30c798
--- /dev/null
+++ b/apps/k8s-node/api/src/test/java/org/onosproject/k8snode/api/DefaultK8sNodeTest.java
@@ -0,0 +1,202 @@
+/*
+ * Copyright 2019-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.k8snode.api;
+
+import com.google.common.testing.EqualsTester;
+import org.junit.Before;
+import org.junit.Test;
+import org.onlab.packet.ChassisId;
+import org.onlab.packet.IpAddress;
+import org.onosproject.k8snode.api.K8sNode.Type;
+import org.onosproject.net.DefaultDevice;
+import org.onosproject.net.Device;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.provider.ProviderId;
+
+import static junit.framework.TestCase.assertEquals;
+import static junit.framework.TestCase.assertSame;
+import static org.onosproject.k8snode.api.K8sNode.Type.MINION;
+import static org.onosproject.k8snode.api.K8sNodeState.COMPLETE;
+import static org.onosproject.k8snode.api.K8sNodeState.DEVICE_CREATED;
+import static org.onosproject.k8snode.api.K8sNodeState.INIT;
+import static org.onosproject.net.Device.Type.SWITCH;
+
+/**
+ * Unit test for DefaultK8sNode.
+ */
+public final class DefaultK8sNodeTest {
+
+    private static final IpAddress TEST_IP = IpAddress.valueOf("10.100.0.3");
+
+    private static final String HOSTNAME_1 = "hostname_1";
+    private static final String HOSTNAME_2 = "hostname_2";
+    private static final Device DEVICE_1 = createDevice(1);
+    private static final Device DEVICE_2 = createDevice(2);
+
+    private static final IpAddress MANAGEMENT_IP = IpAddress.valueOf("10.10.10.10");
+    private static final IpAddress DATA_IP = IpAddress.valueOf("20.20.20.20");
+
+    private K8sNode refNode;
+
+    private static final K8sNode K8S_NODE_1 = createNode(
+            HOSTNAME_1,
+            MINION,
+            DEVICE_1,
+            TEST_IP,
+            INIT);
+    private static final K8sNode K8S_NODE_2 = createNode(
+            HOSTNAME_1,
+            MINION,
+            DEVICE_1,
+            TEST_IP,
+            INIT);
+    private static final K8sNode K8S_NODE_3 = createNode(
+            HOSTNAME_2,
+            MINION,
+            DEVICE_2,
+            TEST_IP,
+            INIT);
+
+    /**
+     * Initial setup for this unit test.
+     */
+    @Before
+    public void setUp() {
+        refNode = DefaultK8sNode.builder()
+                .hostname(HOSTNAME_1)
+                .type(MINION)
+                .managementIp(MANAGEMENT_IP)
+                .dataIp(DATA_IP)
+                .intgBridge(DEVICE_1.id())
+                .state(COMPLETE)
+                .build();
+    }
+
+    /**
+     * Checks equals method works as expected.
+     */
+    @Test
+    public void testEquality() {
+        new EqualsTester().addEqualityGroup(K8S_NODE_1, K8S_NODE_2)
+                .addEqualityGroup(K8S_NODE_3)
+                .testEquals();
+    }
+
+    /**
+     * Test object construction.
+     */
+    @Test
+    public void testConstruction() {
+        checkCommonProperties(refNode);
+        assertSame(refNode.state(), COMPLETE);
+        assertEquals(refNode.intgBridge(), DEVICE_1.id());
+    }
+
+    /**
+     * Checks the functionality of update state method.
+     */
+    @Test
+    public void testUpdateState() {
+        K8sNode updatedNode = refNode.updateState(DEVICE_CREATED);
+
+        checkCommonProperties(updatedNode);
+        assertSame(updatedNode.state(), DEVICE_CREATED);
+    }
+
+    /**
+     * Checks the functionality of from method.
+     */
+    @Test
+    public void testFrom() {
+        K8sNode updatedNode = DefaultK8sNode.from(refNode).build();
+
+        assertEquals(updatedNode, refNode);
+    }
+
+    /**
+     * Checks building a node without hostname fails with proper exception.
+     */
+    @Test(expected = IllegalArgumentException.class)
+    public void testBuildWithoutHostname() {
+        DefaultK8sNode.builder()
+                .type(MINION)
+                .intgBridge(DEVICE_1.id())
+                .managementIp(TEST_IP)
+                .dataIp(TEST_IP)
+                .state(INIT)
+                .build();
+    }
+
+    /**
+     * Checks building a node without type fails with proper exception.
+     */
+    @Test(expected = IllegalArgumentException.class)
+    public void testBuildWithoutType() {
+        DefaultK8sNode.builder()
+                .hostname(HOSTNAME_1)
+                .intgBridge(DEVICE_1.id())
+                .managementIp(TEST_IP)
+                .dataIp(TEST_IP)
+                .state(INIT)
+                .build();
+    }
+
+    /**
+     * Checks building a node without management IP address fails with
+     * proper exception.
+     */
+    @Test(expected = IllegalArgumentException.class)
+    public void testBuildWithoutManagementIp() {
+        DefaultK8sNode.builder()
+                .hostname(HOSTNAME_1)
+                .type(MINION)
+                .intgBridge(DEVICE_1.id())
+                .dataIp(TEST_IP)
+                .state(INIT)
+                .build();
+    }
+
+    private void checkCommonProperties(K8sNode node) {
+        assertEquals(node.hostname(), HOSTNAME_1);
+        assertEquals(node.type(), MINION);
+        assertEquals(node.managementIp(), MANAGEMENT_IP);
+        assertEquals(node.dataIp(), DATA_IP);
+    }
+
+    private static Device createDevice(long devIdNum) {
+        return new DefaultDevice(new ProviderId("of", "foo"),
+                DeviceId.deviceId(String.format("of:%016d", devIdNum)),
+                SWITCH,
+                "manufacturer",
+                "hwVersion",
+                "swVersion",
+                "serialNumber",
+                new ChassisId(1));
+    }
+
+    private static K8sNode createNode(String hostname, Type type,
+                                      Device intgBridge, IpAddress ipAddr,
+                                      K8sNodeState state) {
+        return DefaultK8sNode.builder()
+                .hostname(hostname)
+                .type(type)
+                .intgBridge(intgBridge.id())
+                .managementIp(ipAddr)
+                .dataIp(ipAddr)
+                .state(state)
+                .build();
+    }
+}