diff --git a/apps/mappingmanagement/api/src/test/java/org/onosproject/mapping/codec/MappingEntryCodecTest.java b/apps/mappingmanagement/api/src/test/java/org/onosproject/mapping/codec/MappingEntryCodecTest.java
new file mode 100644
index 0000000..c76de5f
--- /dev/null
+++ b/apps/mappingmanagement/api/src/test/java/org/onosproject/mapping/codec/MappingEntryCodecTest.java
@@ -0,0 +1,218 @@
+/*
+ * 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.codec;
+
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import org.hamcrest.Description;
+import org.hamcrest.TypeSafeDiagnosingMatcher;
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.onlab.packet.IpPrefix;
+import org.onosproject.codec.CodecContext;
+import org.onosproject.codec.JsonCodec;
+import org.onosproject.codec.impl.CodecManager;
+import org.onosproject.mapping.DefaultMapping;
+import org.onosproject.mapping.DefaultMappingEntry;
+import org.onosproject.mapping.DefaultMappingKey;
+import org.onosproject.mapping.DefaultMappingTreatment;
+import org.onosproject.mapping.DefaultMappingValue;
+import org.onosproject.mapping.Mapping;
+import org.onosproject.mapping.MappingCodecRegistrator;
+import org.onosproject.mapping.MappingEntry;
+import org.onosproject.mapping.MappingEntry.MappingEntryState;
+import org.onosproject.mapping.MappingKey;
+import org.onosproject.mapping.MappingTreatment;
+import org.onosproject.mapping.MappingValue;
+import org.onosproject.mapping.actions.MappingAction;
+import org.onosproject.mapping.actions.MappingActions;
+import org.onosproject.mapping.addresses.MappingAddress;
+import org.onosproject.mapping.addresses.MappingAddresses;
+import org.onosproject.mapping.codec.MappingKeyCodecTest.MappingKeyJsonMatcher;
+import org.onosproject.mapping.codec.MappingValueCodecTest.MappingValueJsonMatcher;
+import org.onosproject.mapping.instructions.MappingInstruction;
+import org.onosproject.mapping.instructions.MappingInstructions;
+import org.onosproject.net.DeviceId;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.notNullValue;
+
+/**
+ * Unit tests for MappingEntryCodec.
+ */
+public class MappingEntryCodecTest {
+
+    private static final String IPV4_STRING = "1.2.3.4";
+    private static final String PORT_STRING = "32";
+    private static final IpPrefix IPV4_PREFIX =
+            IpPrefix.valueOf(IPV4_STRING + "/" + PORT_STRING);
+
+    private static final int UNICAST_WEIGHT = 1;
+    private static final int UNICAST_PRIORITY = 1;
+    private static final int MULTICAST_WEIGHT = 2;
+    private static final int MULTICAST_PRIORITY = 2;
+
+    private static final long ID = 1L;
+    private static final DeviceId DEVICE_ID = DeviceId.deviceId("lisp:5.6.7.8");
+    private static final MappingEntryState STATE = MappingEntryState.ADDED;
+
+    private CodecContext context;
+    private JsonCodec<MappingEntry> entryCodec;
+    private MappingCodecRegistrator registrator;
+
+    /**
+     * Sets up for each test.
+     * Creates a context and fetches the mapping entry codec.
+     */
+    @Before
+    public void setUp() {
+        CodecManager manager = new CodecManager();
+        registrator = new MappingCodecRegistrator();
+        registrator.codecService = manager;
+        registrator.activate();
+
+        context = new MappingCodecContextAdapter(registrator.codecService);
+        entryCodec = context.codec(MappingEntry.class);
+        assertThat(entryCodec, notNullValue());
+    }
+
+    /**
+     * Deactivates the codec registrator.
+     */
+    @After
+    public void tearDown() {
+        registrator.deactivate();
+    }
+
+    /**
+     * Tests encoding of a mapping entry object.
+     */
+    @Test
+    public void testMappingEntryEncode() {
+        MappingAddress address = MappingAddresses.ipv4MappingAddress(IPV4_PREFIX);
+
+        MappingInstruction unicastWeight = MappingInstructions.unicastWeight(UNICAST_WEIGHT);
+        MappingInstruction unicastPriority = MappingInstructions.unicastPriority(UNICAST_PRIORITY);
+        MappingInstruction multicastWeight = MappingInstructions.multicastWeight(MULTICAST_WEIGHT);
+        MappingInstruction multicastPriority = MappingInstructions.multicastPriority(MULTICAST_PRIORITY);
+
+        MappingKey key = DefaultMappingKey.builder()
+                .withAddress(address)
+                .build();
+
+        MappingTreatment treatment = DefaultMappingTreatment.builder()
+                .add(unicastWeight)
+                .add(unicastPriority)
+                .add(multicastWeight)
+                .add(multicastPriority)
+                .withAddress(address)
+                .build();
+
+        MappingAction action = MappingActions.noAction();
+
+        MappingValue value = DefaultMappingValue.builder()
+                .add(treatment)
+                .withAction(action)
+                .build();
+
+        Mapping mapping = DefaultMapping.builder()
+                                .withId(ID)
+                                .forDevice(DEVICE_ID)
+                                .withKey(key)
+                                .withValue(value)
+                                .build();
+
+        MappingEntry entry = new DefaultMappingEntry(mapping, STATE);
+
+        ObjectNode entryJson = entryCodec.encode(entry, context);
+        assertThat(entryJson, MappingEntryJsonMatcher.matchesMappingEntry(entry));
+    }
+
+    /**
+     * Hamcrest matcher for mapping entry.
+     */
+    public static final class MappingEntryJsonMatcher
+            extends TypeSafeDiagnosingMatcher<JsonNode> {
+
+        private final MappingEntry mappingEntry;
+
+        /**
+         * A default constructor.
+         *
+         * @param mappingEntry mapping entry
+         */
+        private MappingEntryJsonMatcher(MappingEntry mappingEntry) {
+            this.mappingEntry = mappingEntry;
+        }
+
+        @Override
+        protected boolean matchesSafely(JsonNode jsonNode, Description description) {
+
+            // check mapping id
+            final JsonNode jsonIdNode = jsonNode.get(MappingEntryCodec.ID);
+            final long jsonId = jsonIdNode.asLong();
+            final long id = mappingEntry.id().value();
+            if (jsonId != id) {
+                description.appendText("mapping id was " + id);
+                return false;
+            }
+
+            // check device id
+            final JsonNode jsonDeviceIdNode = jsonNode.get(MappingEntryCodec.DEVICE_ID);
+            final String jsonDeviceId = jsonDeviceIdNode.textValue();
+            final String deviceId = mappingEntry.deviceId().toString();
+            if (!jsonDeviceId.equals(deviceId)) {
+                description.appendText("device id was " + deviceId);
+                return false;
+            }
+
+            // check state
+            final JsonNode jsonStateNode = jsonNode.get(MappingEntryCodec.STATE);
+            final String jsonState = jsonStateNode.textValue();
+            final String state = mappingEntry.state().name();
+            if (!jsonState.equals(state)) {
+                description.appendText("state was " + state);
+                return false;
+            }
+
+            // check mapping key
+            final JsonNode jsonKeyNode = jsonNode.get(MappingEntryCodec.KEY);
+            assertThat(jsonKeyNode, MappingKeyJsonMatcher.matchesMappingKey(mappingEntry.key()));
+
+            // check mapping value
+            final JsonNode jsonValueNode = jsonNode.get(MappingEntryCodec.VALUE);
+            assertThat(jsonValueNode, MappingValueJsonMatcher.matchesMappingValue(mappingEntry.value()));
+
+            return true;
+        }
+
+        @Override
+        public void describeTo(Description description) {
+            description.appendText(mappingEntry.toString());
+        }
+
+        /**
+         * Factory to allocate a mapping entry matcher.
+         *
+         * @param entry mapping entry object we are looking for
+         * @return matcher
+         */
+        public static MappingEntryJsonMatcher matchesMappingEntry(MappingEntry entry) {
+            return new MappingEntryJsonMatcher(entry);
+        }
+    }
+}