diff --git a/apps/kubevirt-networking/api/src/test/java/org/onosproject/kubevirtnetworking/api/DefaultKubevirtInstanceTest.java b/apps/kubevirt-networking/api/src/test/java/org/onosproject/kubevirtnetworking/api/DefaultKubevirtInstanceTest.java
new file mode 100644
index 0000000..c1e59b6
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+++ b/apps/kubevirt-networking/api/src/test/java/org/onosproject/kubevirtnetworking/api/DefaultKubevirtInstanceTest.java
@@ -0,0 +1,116 @@
+/*
+ * Copyright 2021-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.kubevirtnetworking.api;
+
+import com.google.common.collect.ImmutableSet;
+import com.google.common.testing.EqualsTester;
+import org.junit.Before;
+import org.junit.Test;
+import org.onlab.packet.IpAddress;
+import org.onlab.packet.MacAddress;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.PortNumber;
+
+import static junit.framework.TestCase.assertEquals;
+import static org.onlab.junit.ImmutableClassChecker.assertThatClassIsImmutable;
+
+/**
+ * Unit tests for the default kubevirt instance class.
+ */
+public class DefaultKubevirtInstanceTest {
+
+    private static final String UID_1 = "1";
+    private static final String UID_2 = "2";
+    private static final String NAME_1 = "instance-1";
+    private static final String NAME_2 = "instance-2";
+    private static final MacAddress MAC_1 = MacAddress.valueOf("11:22:33:44:55:66");
+    private static final MacAddress MAC_2 = MacAddress.valueOf("66:55:44:33:22:11");
+    private static final IpAddress IP_1 = IpAddress.valueOf("10.10.10.10");
+    private static final IpAddress IP_2 = IpAddress.valueOf("20.20.20.20");
+    private static final DeviceId DID_1 = DeviceId.deviceId("did1");
+    private static final DeviceId DID_2 = DeviceId.deviceId("did2");
+    private static final PortNumber PN_1 = PortNumber.portNumber(1);
+    private static final PortNumber PN_2 = PortNumber.portNumber(2);
+    private static final KubevirtPort PORT_1 = createPort(MAC_1, IP_1, DID_1, PN_1);
+    private static final KubevirtPort PORT_2 = createPort(MAC_2, IP_2, DID_2, PN_2);
+
+    private KubevirtInstance instance1;
+    private KubevirtInstance sameAsInstance1;
+    private KubevirtInstance instance2;
+
+    /**
+     * Tests class immutability.
+     */
+    @Test
+    public void testImmutability() {
+        assertThatClassIsImmutable(DefaultKubevirtInstance.class);
+    }
+
+    /**
+     * Initial setup for this unit test.
+     */
+    @Before
+    public void setUp() {
+        instance1 = DefaultKubevirtInstance.builder()
+                .uid(UID_1)
+                .name(NAME_1)
+                .ports(ImmutableSet.of(PORT_1))
+                .build();
+
+        sameAsInstance1 = DefaultKubevirtInstance.builder()
+                .uid(UID_1)
+                .name(NAME_1)
+                .ports(ImmutableSet.of(PORT_1))
+                .build();
+
+        instance2 = DefaultKubevirtInstance.builder()
+                .uid(UID_2)
+                .name(NAME_2)
+                .ports(ImmutableSet.of(PORT_2))
+                .build();
+    }
+
+    /**
+     * Tests object equality.
+     */
+    @Test
+    public void testEquality() {
+        new EqualsTester().addEqualityGroup(instance1, sameAsInstance1)
+                .addEqualityGroup(instance2)
+                .testEquals();
+    }
+
+    /**
+     * Test object construction.
+     */
+    @Test
+    public void testConstruction() {
+        KubevirtInstance instance = instance1;
+
+        assertEquals(UID_1, instance1.uid());
+        assertEquals(NAME_1, instance1.name());
+        assertEquals(ImmutableSet.of(PORT_1), instance1.ports());
+    }
+
+    static KubevirtPort createPort(MacAddress mac, IpAddress ip, DeviceId did, PortNumber pn) {
+        return DefaultKubevirtPort.builder()
+                .macAddress(mac)
+                .ipAddress(ip)
+                .deviceId(did)
+                .portNumber(pn)
+                .build();
+    }
+}