diff --git a/core/api/src/test/java/org/onosproject/net/pi/runtime/PiPacketMetadataIdTest.java b/core/api/src/test/java/org/onosproject/net/pi/runtime/PiPacketMetadataIdTest.java
new file mode 100644
index 0000000..a2ee50f
--- /dev/null
+++ b/core/api/src/test/java/org/onosproject/net/pi/runtime/PiPacketMetadataIdTest.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2017-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.net.pi.runtime;
+
+import com.google.common.testing.EqualsTester;
+import org.junit.Test;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.notNullValue;
+import static org.onlab.junit.ImmutableClassChecker.assertThatClassIsImmutable;
+import static org.onosproject.net.pi.runtime.PiConstantsTest.EGRESS_PORT;
+import static org.onosproject.net.pi.runtime.PiConstantsTest.INGRESS_PORT;
+
+/**
+ * Unit tests for PiPacketMetadataId class.
+ */
+public class PiPacketMetadataIdTest {
+
+    final PiPacketMetadataId piPacketMetadataId1 = PiPacketMetadataId.of(EGRESS_PORT);
+    final PiPacketMetadataId sameAsPiPacketMetadataId1 = PiPacketMetadataId.of(EGRESS_PORT);
+    final PiPacketMetadataId piPacketMetadataId2 = PiPacketMetadataId.of(INGRESS_PORT);
+
+    /**
+     * Checks that the PiPacketMetadataId class is immutable.
+     */
+    @Test
+    public void testImmutability() {
+
+        assertThatClassIsImmutable(PiPacketMetadataId.class);
+    }
+
+    /**
+     * Checks the operation of equals(), hashCode() and toString() methods.
+     */
+    @Test
+    public void testEquals() {
+
+        new EqualsTester()
+                .addEqualityGroup(piPacketMetadataId1, sameAsPiPacketMetadataId1)
+                .addEqualityGroup(piPacketMetadataId2)
+                .testEquals();
+    }
+
+    /**
+     * Checks the methods of PiPacketMetadataId.
+     */
+    @Test
+    public void testMethods() {
+
+        assertThat(piPacketMetadataId1, is(notNullValue()));
+        assertThat(piPacketMetadataId1.name(), is(EGRESS_PORT));
+    }
+}