diff --git a/apps/mappingmanagement/api/src/test/java/org/onosproject/mapping/DefaultMappingTreatmentTest.java b/apps/mappingmanagement/api/src/test/java/org/onosproject/mapping/DefaultMappingTreatmentTest.java
new file mode 100644
index 0000000..e3faaa7
--- /dev/null
+++ b/apps/mappingmanagement/api/src/test/java/org/onosproject/mapping/DefaultMappingTreatmentTest.java
@@ -0,0 +1,127 @@
+/*
+ * 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.mapping;
+
+import com.google.common.testing.EqualsTester;
+import org.junit.Test;
+import org.onlab.packet.IpPrefix;
+import org.onosproject.mapping.addresses.MappingAddress;
+import org.onosproject.mapping.addresses.MappingAddresses;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.hasSize;
+import static org.onlab.junit.ImmutableClassChecker.assertThatClassIsImmutable;
+
+/**
+ * Unit tests for the default mapping treatment class.
+ */
+public class DefaultMappingTreatmentTest {
+
+    private static final String IP_ADDRESS_1 = "1.2.3.4/24";
+    private static final String IP_ADDRESS_2 = "5.6.7.8/24";
+
+    /**
+     * Checks that the DefaultMappingTreatment class is immutable.
+     */
+    @Test
+    public void testImmutability() {
+        assertThatClassIsImmutable(DefaultMappingTreatment.class);
+    }
+
+    /**
+     * Tests method defined on the Builder.
+     */
+    @Test
+    public void testBuilderMethods() {
+        IpPrefix ip = IpPrefix.valueOf(IP_ADDRESS_1);
+        MappingAddress address = MappingAddresses.ipv4MappingAddress(ip);
+
+        MappingTreatment.Builder builder =
+                DefaultMappingTreatment.builder()
+                        .withAddress(address)
+                        .setUnicastPriority(10)
+                        .setUnicastWeight(10);
+        MappingTreatment treatment = builder.build();
+        assertThat(treatment.instructions(), hasSize(2));
+    }
+
+    /**
+     * Tests illegal unicast type instruction construction.
+     */
+    @Test(expected = IllegalArgumentException.class)
+    public void testIllegalUnicastTypeConstruction() {
+        IpPrefix ip = IpPrefix.valueOf(IP_ADDRESS_1);
+        MappingAddress address = MappingAddresses.ipv4MappingAddress(ip);
+
+        DefaultMappingTreatment.builder()
+                .withAddress(address)
+                .setUnicastPriority(10)
+                .setUnicastWeight(10)
+                .setUnicastPriority(20)
+                .build();
+    }
+
+    /**
+     * Tests illegal multicast type instruction construction.
+     */
+    @Test(expected = IllegalArgumentException.class)
+    public void testIllegalMulticastTypeConstruction() {
+        IpPrefix ip = IpPrefix.valueOf(IP_ADDRESS_1);
+        MappingAddress address = MappingAddresses.ipv4MappingAddress(ip);
+
+        DefaultMappingTreatment.builder()
+                .withAddress(address)
+                .setMulticastPriority(10)
+                .setMulticastWeight(10)
+                .setMulticastPriority(20)
+                .build();
+    }
+
+    /**
+     * Tests equals() method.
+     */
+    @Test
+    public void testEquals() {
+        IpPrefix ip1 = IpPrefix.valueOf(IP_ADDRESS_1);
+        MappingAddress address1 = MappingAddresses.ipv4MappingAddress(ip1);
+
+        MappingTreatment treatment1 = DefaultMappingTreatment.builder()
+                                    .withAddress(address1)
+                                    .setUnicastPriority(10)
+                                    .setUnicastWeight(10)
+                                    .build();
+
+        MappingTreatment sameAsTreatment1 = DefaultMappingTreatment.builder()
+                                    .withAddress(address1)
+                                    .setUnicastPriority(10)
+                                    .setUnicastWeight(10)
+                                    .build();
+
+        IpPrefix ip2 = IpPrefix.valueOf(IP_ADDRESS_2);
+        MappingAddress address2 = MappingAddresses.ipv4MappingAddress(ip2);
+
+        MappingTreatment treatment2 = DefaultMappingTreatment.builder()
+                                    .withAddress(address2)
+                                    .setMulticastPriority(20)
+                                    .setMulticastWeight(20)
+                                    .build();
+
+        new EqualsTester()
+                .addEqualityGroup(treatment1, sameAsTreatment1)
+                .addEqualityGroup(treatment2)
+                .testEquals();
+    }
+}