diff --git a/core/api/src/test/java/org/onosproject/net/pi/runtime/PiActionTest.java b/core/api/src/test/java/org/onosproject/net/pi/runtime/PiActionTest.java
new file mode 100644
index 0000000..430badb
--- /dev/null
+++ b/core/api/src/test/java/org/onosproject/net/pi/runtime/PiActionTest.java
@@ -0,0 +1,98 @@
+/*
+ * Copyright 2017-present Open Networking Laboratory
+ *
+ * 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.collect.Lists;
+import com.google.common.testing.EqualsTester;
+import org.junit.Test;
+
+
+import java.util.Collection;
+
+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.onlab.util.ImmutableByteSequence.copyFrom;
+import static org.onosproject.net.pi.runtime.PiConstantsTest.DST_ADDR;
+import static org.onosproject.net.pi.runtime.PiConstantsTest.MOD_NW_DST;
+
+/**
+ * Unit tests for PiAction class.
+ */
+public class PiActionTest {
+    final PiAction piAction1 = PiAction.builder().withId(PiActionId.of(MOD_NW_DST))
+            .withParameter(new PiActionParam(PiActionParamId.of(DST_ADDR), copyFrom(0x0a010101)))
+            .build();
+    final PiAction sameAsPiAction1 = PiAction.builder().withId(PiActionId.of(MOD_NW_DST))
+            .withParameter(new PiActionParam(PiActionParamId.of(DST_ADDR), copyFrom(0x0a010101)))
+            .build();
+    final PiAction piAction2 = PiAction.builder().withId(PiActionId.of("set_egress_port_0")).build();
+
+    /**
+     * Checks that the PiAction class is immutable.
+     */
+    @Test
+    public void testImmutability() {
+        assertThatClassIsImmutable(PiAction.class);
+    }
+
+    /**
+     * Checks the operation of equals(), hashCode() and toString() methods.
+     */
+    @Test
+    public void testEquals() {
+        new EqualsTester()
+                .addEqualityGroup(piAction1, sameAsPiAction1)
+                .addEqualityGroup(piAction2)
+                .testEquals();
+    }
+
+    /**
+     * Checks the construction of a PiAction object with parameter.
+     */
+    @Test
+    public void testMethodWithParameter() {
+        PiActionId piActionId = PiActionId.of(MOD_NW_DST);
+        PiActionParam piActionParam = new PiActionParam(PiActionParamId.of(DST_ADDR), copyFrom(0x0a010101));
+        final PiAction piAction = PiAction.builder().withId(piActionId)
+                .withParameter(piActionParam)
+                .build();
+        assertThat(piAction, is(notNullValue()));
+        assertThat(piAction.id(), is(piActionId));
+        assertThat(piAction.type(), is(PiTableAction.Type.ACTION));
+    }
+
+    /**
+     * Checks the construction of a PiAction object with parameters.
+     */
+    @Test
+    public void testMethodWithParameters() {
+        PiActionId piActionId = PiActionId.of(MOD_NW_DST);
+        Collection<PiActionParam> runtimeParams = Lists.newArrayList();
+        PiActionParam piActionParam = new PiActionParam(PiActionParamId.of(DST_ADDR), copyFrom(0x0a010101));
+
+        runtimeParams.add(piActionParam);
+        final PiAction piAction = PiAction.builder().withId(piActionId)
+                .withParameters(runtimeParams)
+                .build();
+        assertThat(piAction, is(notNullValue()));
+        assertThat(piAction.id(), is(piActionId));
+        assertThat(piAction.parameters(), is(runtimeParams));
+        assertThat(piAction.type(), is(PiTableAction.Type.ACTION));
+    }
+}