diff --git a/apps/yms/app/src/test/java/org/onosproject/yms/app/ych/DefaultYangCodecHandlerTest.java b/apps/yms/app/src/test/java/org/onosproject/yms/app/ych/DefaultYangCodecHandlerTest.java
new file mode 100644
index 0000000..dcce22a
--- /dev/null
+++ b/apps/yms/app/src/test/java/org/onosproject/yms/app/ych/DefaultYangCodecHandlerTest.java
@@ -0,0 +1,1422 @@
+/*
+ * Copyright 2016-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.yms.app.ych;
+
+import org.junit.Test;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.CombinedOpParam;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.AsNum;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.Attributes;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.DefaultAttributes;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.Metric;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.PathId;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.Aigp;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.BgpParameters;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.DefaultAigp;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.DefaultBgpParameters;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.DefaultLocalPref;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.DefaultMultiExitDisc;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.DefaultOrigin;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.DefaultUnrecognizedAttributes;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.LocalPref;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.MultiExitDisc;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.Origin;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.UnrecognizedAttributes;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.aigp.AigpTlv;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.aigp.DefaultAigpTlv;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.bgpparameters.DefaultOptionalCapabilities;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.bgpparameters.OptionalCapabilities;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.bgpparameters.optionalcapabilities.Cparameters;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.bgpparameters.optionalcapabilities.DefaultCparameters;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.bgpparameters.optionalcapabilities.cparameters.As4BytesCapability;
+import org.onosproject.yang.gen.v1.ych.combined.rev20160524.combined.attributes.bgpparameters.optionalcapabilities.cparameters.DefaultAs4BytesCapability;
+import org.onosproject.yang.gen.v1.ych.empty.container.rev20160524.EmptyContainerOpParam;
+import org.onosproject.yang.gen.v1.ych.empty.container.rev20160524.emptycontainer.EmptyContainer;
+import org.onosproject.yang.gen.v1.ych.purchasing.supervisor.rev20160524.YchPurchasingsupervisorOpParam;
+import org.onosproject.yang.gen.v1.ych.purchasing.supervisor.rev20160524.ychpurchasingsupervisor.DefaultYchPurchasingSupervisor;
+import org.onosproject.yang.gen.v1.ych.purchasing.supervisor.rev20160524.ychpurchasingsupervisor.YchPurchasingSupervisor;
+import org.onosproject.yang.gen.v1.ydt.customs.supervisor.rev20160524.CustomssupervisorOpParam;
+import org.onosproject.yang.gen.v1.ydt.employee.id.rev20160524.EmployeeidOpParam;
+import org.onosproject.yang.gen.v1.ydt.material.supervisor.rev20160524.MaterialsupervisorOpParam;
+import org.onosproject.yang.gen.v1.ydt.material.supervisor.rev20160524.materialsupervisor.DefaultSupervisor;
+import org.onosproject.yang.gen.v1.ydt.material.supervisor.rev20160524.materialsupervisor.Supervisor;
+import org.onosproject.yang.gen.v1.ydt.merchandiser.supervisor.rev20160524.MerchandisersupervisorOpParam;
+import org.onosproject.yang.gen.v1.ydt.root.rev20160524.LogisticsManagerOpParam;
+import org.onosproject.yang.gen.v1.ydt.root.rev20160524.logisticsmanager.DefaultPurchasingSupervisor;
+import org.onosproject.yang.gen.v1.ydt.trading.supervisor.rev20160524.TradingsupervisorOpParam;
+import org.onosproject.yang.gen.v1.ydt.warehouse.supervisor.rev20160524.WarehousesupervisorOpParam;
+import org.onosproject.yms.app.ych.defaultcodecs.YangCodecRegistry;
+import org.onosproject.yms.app.ysr.DefaultYangSchemaRegistry;
+import org.onosproject.yms.app.ysr.TestYangSchemaNodeProvider;
+import org.onosproject.yms.ych.YangCompositeEncoding;
+
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+import static org.onosproject.yang.gen.v1.ydt.root.rev20160524.logisticsmanager.DefaultPurchasingSupervisor.OnosYangNodeOperationType.DELETE;
+import static org.onosproject.yms.ych.YangProtocolEncodingFormat.XML;
+import static org.onosproject.yms.ydt.YmsOperationType.EDIT_CONFIG_REQUEST;
+import static org.onosproject.yms.ydt.YmsOperationType.QUERY_CONFIG_REQUEST;
+import static org.onosproject.yms.ydt.YmsOperationType.QUERY_REQUEST;
+
+/**
+ * Unit test case for default codec handler.
+ */
+public class DefaultYangCodecHandlerTest {
+    private TestYangSchemaNodeProvider testYangSchemaNodeProvider =
+            new TestYangSchemaNodeProvider();
+    private static final String AM_XML = "Incorrect XML generated: ";
+    private static final String AM_OBJ = "Incorrect object generated: ";
+    private static final String EMPTY_CONTAINER = "EmptyContainerOpParam";
+    private static final String LOGISTIC_MOD = "LogisticsManagerOpParam";
+    private static final String MERCHA_MOD = "MerchandisersupervisorOpParam";
+
+    /**
+     * Returns the xml string for customssupervisor module.
+     *
+     * @return the xml string for customssupervisor module
+     */
+    private static String customsXml() {
+        return "<filter xmlns=\"ydt.filter-type\" type=\"subtree\">" +
+                "<customssupervisor xmlns=\"ydt.customs-supervisor\">" +
+                "<supervisor>Customssupervisor</supervisor>" +
+                "</customssupervisor>" +
+                "</filter>";
+    }
+
+    /**
+     * Returns the xml string for merchandisersupervisor module.
+     *
+     * @return the xml string for merchandisersupervisor module
+     */
+    private static String merchandXml() {
+        return "<config xmlns=\"ydt.root\">" +
+                "<merchandisersupervisor xmlns=\"ydt.Merchandiser-" +
+                "supervisor\">" +
+                "<supervisor>Merchandisersupervisor</supervisor>" +
+                "</merchandisersupervisor>" +
+                "</config>";
+    }
+
+    /**
+     * Returns the xml string for tradingsupervisor module.
+     *
+     * @return the xml string for tradingsupervisor module
+     */
+    private static String tradingXml() {
+        return "<config xmlns=\"ydt.root\">" +
+                "<tradingsupervisor xmlns=\"ydt.trading-supervisor\">" +
+                "<supervisor>Tradingsupervisor</supervisor>" +
+                "</tradingsupervisor>" +
+                "</config>";
+    }
+
+    /**
+     * Returns the xml string for customssupervisor module.
+     *
+     * @return the xml string for customssupervisor module
+     */
+    private static String customsCompositeXml() {
+        return "<filter xmlns=\"ydt.filter-type\"><customssupervisor " +
+                "xmlns=\"ydt.customs-supervisor\">" +
+                "<supervisor>Customssupervisor</supervisor>" +
+                "</customssupervisor></filter>";
+    }
+
+    /**
+     * Returns the xml string for customssupervisor module with filter-type.
+     *
+     * @return the xml string for customssupervisor module with filter-type
+     */
+    private static String customsEmptyXml() {
+        return "<filter xmlns=\"ydt.filter-type\" type=\"subtree\">" +
+                "<customssupervisor xmlns=\"ydt.customs-supervisor\"/>" +
+                "</filter>";
+    }
+
+    /**
+     * Returns the xml string for materialsupervisor module.
+     *
+     * @return the xml string for materialsupervisor module
+     */
+    private static String materialXml() {
+        return "<filter xmlns=\"ydt.filter-type\" type=\"subtree\">" +
+                "<materialsupervisor xmlns=\"ydt.material-supervisor\">" +
+                "<supervisor>" +
+                "<name>abc1</name><departmentId>xyz1</departmentId>" +
+                "</supervisor>" +
+                "<supervisor><name>abc2</name><departmentId>xyz2</departmentId>" +
+                "</supervisor>" +
+                "<supervisor><name>abc3</name><departmentId>xyz3</departmentId>" +
+                "</supervisor>" +
+                "<supervisor><name>abc4</name><departmentId>xyz4</departmentId>" +
+                "</supervisor>" +
+                "<supervisor><name>abc5</name><departmentId>xyz5</departmentId>" +
+                "</supervisor>" +
+                "</materialsupervisor>" +
+                "</filter>";
+    }
+
+    /**
+     * Returns the xml string for EmptyContainer module.
+     *
+     * @return the xml string for EmptyContainer module
+     */
+    private static String containerEmptyXml() {
+        return "<filter xmlns=\"ydt.filter-type\" type=\"subtree\">" +
+                "<EmptyContainer xmlns=\"ych.Empty.Container\"/>" +
+                "</filter>";
+    }
+
+    /**
+     * Returns the xml string for Combined module.
+     *
+     * @return the xml string for Combined module
+     */
+    private static String listTestXml() {
+        return "<filter xmlns=\"ydt.filter-type\" type=\"subtree\">" +
+                "<Combined xmlns=\"ych:combined\"><attributes>" +
+                "<origin><value>123</value></origin>" +
+                "<multi-exit-disc><med>456</med></multi-exit-disc>" +
+                "<local-pref><pref>23</pref></local-pref>" +
+                "<aigp><aigp-tlv><metric>456</metric></aigp-tlv></aigp>" +
+                "<unrecognized-attributes><partial>false</partial>" +
+                "<transitive>false</transitive><type>1</type>" +
+                "<value>QUJD</value></unrecognized-attributes>" +
+                "<unrecognized-attributes><partial>true</partial>" +
+                "<transitive>true</transitive><type>2</type>" +
+                "<value>QUJD</value></unrecognized-attributes>" +
+                "<unrecognized-attributes><partial>true</partial>" +
+                "<transitive>false</transitive><type>3</type>" +
+                "<value>QUJD</value></unrecognized-attributes>" +
+                "<unrecognized-attributes><partial>false</partial>" +
+                "<transitive>true</transitive><type>4</type>" +
+                "<value>QUJD</value></unrecognized-attributes>" +
+                "<bgp-parameters><optional-capabilities><c-parameters>" +
+                "<as4-bytes-capability><as-number>11</as-number>" +
+                "</as4-bytes-capability></c-parameters>" +
+                "</optional-capabilities><optional-capabilities>" +
+                "<c-parameters><as4-bytes-capability>" +
+                "<as-number>22</as-number></as4-bytes-capability>" +
+                "</c-parameters></optional-capabilities>" +
+                "<optional-capabilities><c-parameters><as4-bytes-capability>" +
+                "<as-number>33</as-number></as4-bytes-capability>" +
+                "</c-parameters></optional-capabilities></bgp-parameters>" +
+                "<bgp-parameters><optional-capabilities><c-parameters>" +
+                "<as4-bytes-capability><as-number>11</as-number>" +
+                "</as4-bytes-capability></c-parameters>" +
+                "</optional-capabilities><optional-capabilities>" +
+                "<c-parameters><as4-bytes-capability>" +
+                "<as-number>22</as-number></as4-bytes-capability>" +
+                "</c-parameters></optional-capabilities>" +
+                "<optional-capabilities><c-parameters><as4-bytes-capability>" +
+                "<as-number>33</as-number></as4-bytes-capability>" +
+                "</c-parameters></optional-capabilities>" +
+                "</bgp-parameters></attributes></Combined></filter>";
+    }
+
+    /**
+     * Returns the xml string for ych-purchasingsupervisor module.
+     *
+     * @return the xml string for ych-purchasingsupervisor module
+     */
+    private static String purchaseXml() {
+        return "<filter xmlns=\"ydt.filter-type\" type=\"subtree\">" +
+                "<ych-purchasingsupervisor xmlns=\"ych.purchasing-supervisor\">" +
+                "<ych-purchasing-supervisor operation=\"create\">" +
+                "<ych-purchasing-specialist>purchasingSpecialist" +
+                "</ych-purchasing-specialist>" +
+                "<ych-purchasing-support>support</ych-purchasing-support>" +
+                "</ych-purchasing-supervisor>" +
+                "</ych-purchasingsupervisor>" +
+                "</filter>";
+    }
+
+    /**
+     * Returns the xml string for employeeid module.
+     *
+     * @return the xml string for employeeid module
+     */
+    private static String emplyIdXml() {
+        return "<config xmlns=\"ydt.root\">" +
+                "<employeeid xmlns=\"ydt.employee-id\">" +
+                "<employeeid>Employ1</employeeid>" +
+                "<employeeid>Employ5</employeeid>" +
+                "<employeeid>Employ4</employeeid>" +
+                "<employeeid>Employ3</employeeid>" +
+                "<employeeid>Employ2</employeeid>" +
+                "</employeeid>" +
+                "</config>";
+    }
+
+    /**
+     * Returns the xml string for warehousesupervisor module.
+     *
+     * @return the xml string for warehousesupervisor module
+     */
+    private static String wareHseXml() {
+        return "<config xmlns=\"ydt.root\">" +
+                "<warehousesupervisor xmlns=\"ydt.warehouse-supervisor\">" +
+                "<supervisor>supervisor4</supervisor>" +
+                "<supervisor>supervisor5</supervisor>" +
+                "<supervisor>supervisor1</supervisor>" +
+                "<supervisor>supervisor2</supervisor>" +
+                "<supervisor>supervisor3</supervisor>" +
+                "</warehousesupervisor>" +
+                "</config>";
+    }
+
+    /**
+     * Returns the xml string for more than one module.
+     *
+     * @return the xml string for more than one module
+     */
+    private static String multiModuleXml() {
+        return "<config xmlns=\"ydt.root\">" +
+                "<customssupervisor xmlns=\"ydt.customs-supervisor\">" +
+                "<supervisor>Customssupervisor</supervisor>" +
+                "</customssupervisor>" +
+                "<merchandisersupervisor xmlns=\"ydt.Merchandiser-supervisor\">" +
+                "<supervisor>Merchandisersupervisor</supervisor>" +
+                "</merchandisersupervisor>" +
+                "<materialsupervisor xmlns=\"ydt.material-supervisor\">" +
+                "<supervisor>" +
+                "<name>abc1</name>" +
+                "<departmentId>xyz1</departmentId>" +
+                "</supervisor>" +
+                "<supervisor>" +
+                "<name>abc2</name>" +
+                "<departmentId>xyz2</departmentId>" +
+                "</supervisor>" +
+                "<supervisor>" +
+                "<name>abc3</name>" +
+                "<departmentId>xyz3</departmentId>" +
+                "</supervisor>" +
+                "<supervisor>" +
+                "<name>abc4</name>" +
+                "<departmentId>xyz4</departmentId>" +
+                "</supervisor>" +
+                "<supervisor>" +
+                "<name>abc5</name>" +
+                "<departmentId>xyz5</departmentId>" +
+                "</supervisor>" +
+                "</materialsupervisor>" +
+                "<ych-purchasingsupervisor xmlns=\"ych.purchasing-supervisor\">" +
+                "<ych-purchasing-supervisor>" +
+                "<ych-purchasing-specialist>purchasingSpecialist" +
+                "</ych-purchasing-specialist>" +
+                "<ych-purchasing-support>support</ych-purchasing-support>" +
+                "</ych-purchasing-supervisor>" +
+                "</ych-purchasingsupervisor>" +
+                "<warehousesupervisor xmlns=\"ydt.warehouse-supervisor\">" +
+                "<supervisor>supervisor4</supervisor>" +
+                "<supervisor>supervisor5</supervisor>" +
+                "<supervisor>supervisor1</supervisor>" +
+                "<supervisor>supervisor2</supervisor>" +
+                "<supervisor>supervisor3</supervisor>" +
+                "</warehousesupervisor>" +
+                "<tradingsupervisor xmlns=\"ydt.trading-supervisor\">" +
+                "<supervisor>Tradingsupervisor</supervisor>" +
+                "</tradingsupervisor>" +
+                "<employeeid xmlns=\"ydt.employee-id\">" +
+                "<employeeid>Employ1</employeeid>" +
+                "<employeeid>Employ5</employeeid>" +
+                "<employeeid>Employ4</employeeid>" +
+                "<employeeid>Employ3</employeeid>" +
+                "<employeeid>Employ2</employeeid>" +
+                "</employeeid>" +
+                "</config>";
+    }
+
+    /**
+     * Unit test case in which verifying xml string for module object with leaf
+     * for composite encode.
+     */
+    @Test
+    public void proceessCodecHandlerForCompositeEnc() {
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry = testYangSchemaNodeProvider
+                .getDefaultYangSchemaRegistry();
+
+        // Creating the object
+        Object object = CustomssupervisorOpParam.builder()
+                .supervisor("Customssupervisor").build();
+
+        // Get the xml string and compare
+        Map<String, String> tagAttr = new HashMap<String, String>();
+        tagAttr.put("type", "subtree");
+
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler defaultYangCodecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+        YangCompositeEncoding xml =
+                defaultYangCodecHandler
+                        .encodeCompositeOperation("filter", "ydt.filter-type",
+                                                  object, XML, null);
+
+        assertNull("customs-super: resource id not null",
+                   xml.getResourceIdentifier());
+        assertEquals(AM_XML + "customs-super: comp res info",
+                     customsCompositeXml(), xml.getResourceInformation());
+
+        // Creating the object
+        object = MerchandisersupervisorOpParam.builder()
+                .supervisor("Merchandisersupervisor").build();
+
+        // Get the xml string and compare
+        xml = defaultYangCodecHandler.encodeCompositeOperation("config",
+                                                               "ydt.root",
+                                                               object, XML,
+                                                               null);
+        assertNull("merch-super: res id not null", xml.getResourceIdentifier());
+        assertEquals(AM_XML + "merch-super: comp res info",
+                     merchandXml(), xml.getResourceInformation());
+
+        // Creating the object
+        object = TradingsupervisorOpParam.builder()
+                .supervisor("Tradingsupervisor").build();
+
+        // Get the xml string and compare
+        xml = defaultYangCodecHandler
+                .encodeCompositeOperation("config", "ydt.root", object, XML,
+                                          null);
+        assertNull("trading-super: res id not null",
+                   xml.getResourceIdentifier());
+        assertEquals(AM_XML + "trading-super: comp res info",
+                     tradingXml(), xml.getResourceInformation());
+    }
+
+    /**
+     * Unit test case in which verifying xml string for module object with leaf.
+     */
+    @Test
+    public void proceessCodecHandlerForLeaf() {
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry = testYangSchemaNodeProvider
+                .getDefaultYangSchemaRegistry();
+        List<Object> yangModuleList = new ArrayList<>();
+
+        // Creating the object
+        Object object = CustomssupervisorOpParam.builder()
+                .supervisor("Customssupervisor").build();
+        yangModuleList.add(object);
+
+        // Get the xml string and compare
+        Map<String, String> tagAttr = new HashMap<String, String>();
+        tagAttr.put("type", "subtree");
+
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler defaultYangCodecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+        String xml =
+                defaultYangCodecHandler.encodeOperation("filter",
+                                                        "ydt.filter-type",
+                                                        tagAttr, yangModuleList,
+                                                        XML, null);
+
+        assertEquals(AM_XML + "customs-super: leaf info", customsXml(), xml);
+
+        // Creating the object
+        object = MerchandisersupervisorOpParam.builder()
+                .supervisor("Merchandisersupervisor").build();
+        yangModuleList.clear();
+        yangModuleList.add(object);
+
+        // Get the xml string and compare
+        xml = defaultYangCodecHandler.encodeOperation("config", "ydt.root",
+                                                      null, yangModuleList,
+                                                      XML, null);
+        assertEquals(AM_XML + "merchandiser-super: leaf info", merchandXml(),
+                     xml);
+
+        // Creating the object
+        object = TradingsupervisorOpParam.builder()
+                .supervisor("Tradingsupervisor").build();
+        yangModuleList.clear();
+        yangModuleList.add(object);
+
+        // Get the xml string and compare
+        xml = defaultYangCodecHandler.encodeOperation("config", "ydt.root",
+                                                      null, yangModuleList,
+                                                      XML, null);
+        assertEquals(AM_XML + "trading-super: leaf info", tradingXml(), xml);
+    }
+
+    /**
+     * Unit test case in which verifying xml string for module object with
+     * empty leaf.
+     */
+    @Test
+    public void proceessCodecHandlerForEmptyLeaf() {
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry = testYangSchemaNodeProvider
+                .getDefaultYangSchemaRegistry();
+        List<Object> yangModuleList = new ArrayList<>();
+
+        // Creating the object
+        Object object = CustomssupervisorOpParam.builder().supervisor("")
+                .build();
+        yangModuleList.add(object);
+
+        // Get the xml string and compare
+        Map<String, String> tagAttr = new HashMap<String, String>();
+        tagAttr.put("type", "subtree");
+
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler codecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+        String xml = codecHandler.encodeOperation("filter", "ydt.filter-type",
+                                                  tagAttr, yangModuleList,
+                                                  XML, null);
+
+        assertEquals(AM_XML + "customs-super: leaf is not empty",
+                     customsEmptyXml(), xml);
+    }
+
+    /**
+     * Unit test case in which verifying xml string for module object with list.
+     */
+    @Test
+    public void proceessCodecHandlerForList() {
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry =
+                testYangSchemaNodeProvider.getDefaultYangSchemaRegistry();
+        List<Object> yangModuleList = new ArrayList<>();
+
+        // Creating the object
+        Supervisor supervisor1 = new DefaultSupervisor.SupervisorBuilder()
+                .name("abc1").departmentId("xyz1").build();
+        Supervisor supervisor2 = new DefaultSupervisor.SupervisorBuilder()
+                .name("abc2").departmentId("xyz2").build();
+        Supervisor supervisor3 = new DefaultSupervisor.SupervisorBuilder()
+                .name("abc3").departmentId("xyz3").build();
+        Supervisor supervisor4 = new DefaultSupervisor.SupervisorBuilder()
+                .name("abc4").departmentId("xyz4").build();
+        Supervisor supervisor5 = new DefaultSupervisor.SupervisorBuilder()
+                .name("abc5").departmentId("xyz5").build();
+
+        Object object = MaterialsupervisorOpParam.builder()
+                .addToSupervisor(supervisor1)
+                .addToSupervisor(supervisor2)
+                .addToSupervisor(supervisor3)
+                .addToSupervisor(supervisor4)
+                .addToSupervisor(supervisor5).build();
+
+        yangModuleList.add(object);
+
+        // Get the xml string and compare
+        Map<String, String> tagAttr = new HashMap<String, String>();
+        tagAttr.put("type", "subtree");
+
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler codecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+        String xml = codecHandler.encodeOperation("filter", "ydt.filter-type",
+                                                  tagAttr, yangModuleList,
+                                                  XML, null);
+        assertEquals(AM_XML + "material-super: list info", materialXml(), xml);
+    }
+
+    /**
+     * Unit test case in which verifying xml string for module object with
+     * empty container.
+     */
+    @Test
+    public void proceessCodecHandlerForEmptyContainer() {
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry =
+                testYangSchemaNodeProvider.getDefaultYangSchemaRegistry();
+        List<Object> yangModuleList = new ArrayList<>();
+
+        // Creating the object
+        EmptyContainer emptyContainer = EmptyContainerOpParam.builder()
+                .emptyContainer();
+        Object object = EmptyContainerOpParam.builder()
+                .emptyContainer(emptyContainer).build();
+
+        yangModuleList.add(object);
+
+        // Get the xml string and compare
+        Map<String, String> tagAttr = new HashMap<String, String>();
+        tagAttr.put("type", "subtree");
+
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler codecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+        String xml = codecHandler.encodeOperation("filter", "ydt.filter-type",
+                                                  tagAttr, yangModuleList,
+                                                  XML, null);
+        assertEquals(AM_XML + "empty-contain: container is not empty",
+                     containerEmptyXml(), xml);
+    }
+
+    /**
+     * Unit test case in which verifying xml string for module object with list
+     * inside list.
+     */
+    @Test
+    public void proceessCodecHandlerForListInsideList() {
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry =
+                testYangSchemaNodeProvider.getDefaultYangSchemaRegistry();
+        List<Object> yangModuleList = new ArrayList<>();
+
+        // Creating the object
+        PathId pathId = new PathId(123);
+        Origin origin = new DefaultOrigin.OriginBuilder().value(pathId)
+                .build();
+        MultiExitDisc multiExitDisc = new DefaultMultiExitDisc
+                .MultiExitDiscBuilder().med(456).build();
+        LocalPref localPref = new DefaultLocalPref.LocalPrefBuilder()
+                .pref(23).build();
+        Metric metric = new Metric(456);
+        AigpTlv aigpTlv = new DefaultAigpTlv.AigpTlvBuilder().metric(metric)
+                .build();
+        Aigp aigp = new DefaultAigp.AigpBuilder().aigpTlv(aigpTlv).build();
+
+        UnrecognizedAttributes unrecognizedAttributes1 =
+                new DefaultUnrecognizedAttributes
+                        .UnrecognizedAttributesBuilder()
+                        .partial(false).transitive(false).type((short) 1)
+                        .value("ABC".getBytes()).build();
+
+        UnrecognizedAttributes unrecognizedAttributes2 =
+                new DefaultUnrecognizedAttributes
+                        .UnrecognizedAttributesBuilder()
+                        .partial(true).transitive(true).type((short) 2)
+                        .value("ABC".getBytes())
+                        .build();
+
+        UnrecognizedAttributes unrecognizedAttributes3 =
+                new DefaultUnrecognizedAttributes
+                        .UnrecognizedAttributesBuilder()
+                        .partial(true).transitive(false).type((short) 3)
+                        .value("ABC".getBytes())
+                        .build();
+
+        UnrecognizedAttributes unrecognizedAttributes4 =
+                new DefaultUnrecognizedAttributes
+                        .UnrecognizedAttributesBuilder()
+                        .partial(false).transitive(true).type((short) 4)
+                        .value("ABC".getBytes()).build();
+
+        AsNum asNum1 = new AsNum(11);
+        As4BytesCapability as4BytesCapability1 =
+                new DefaultAs4BytesCapability.As4BytesCapabilityBuilder()
+                        .asNumber(asNum1).build();
+        Cparameters cparameters1 = new DefaultCparameters.CparametersBuilder()
+                .as4BytesCapability(as4BytesCapability1)
+                .build();
+        OptionalCapabilities optionalCapabilities1 =
+                new DefaultOptionalCapabilities.OptionalCapabilitiesBuilder()
+                        .cParameters(cparameters1).build();
+
+        AsNum asNum2 = new AsNum(22);
+        As4BytesCapability as4BytesCapability2 =
+                new DefaultAs4BytesCapability.As4BytesCapabilityBuilder()
+                        .asNumber(asNum2).build();
+        Cparameters cparameters2 = new DefaultCparameters.CparametersBuilder()
+                .as4BytesCapability(as4BytesCapability2)
+                .build();
+        OptionalCapabilities optionalCapabilities2 =
+                new DefaultOptionalCapabilities.OptionalCapabilitiesBuilder()
+                        .cParameters(cparameters2).build();
+
+        AsNum asNum3 = new AsNum(33);
+        As4BytesCapability as4BytesCapability3 =
+                new DefaultAs4BytesCapability.As4BytesCapabilityBuilder()
+                        .asNumber(asNum3).build();
+        Cparameters cparameters3 = new DefaultCparameters.CparametersBuilder()
+                .as4BytesCapability(as4BytesCapability3)
+                .build();
+        OptionalCapabilities optionalCapabilities3 =
+                new DefaultOptionalCapabilities.OptionalCapabilitiesBuilder()
+                        .cParameters(cparameters3).build();
+
+        BgpParameters bgpParameters1 =
+                new DefaultBgpParameters.BgpParametersBuilder()
+                        .addToOptionalCapabilities(optionalCapabilities1)
+                        .addToOptionalCapabilities(optionalCapabilities2)
+                        .addToOptionalCapabilities(optionalCapabilities3)
+                        .build();
+
+        AsNum asNum4 = new AsNum(11);
+        As4BytesCapability as4BytesCapability4 = new DefaultAs4BytesCapability
+                .As4BytesCapabilityBuilder()
+                .asNumber(asNum4).build();
+        Cparameters cparameters4 = new DefaultCparameters.CparametersBuilder()
+                .as4BytesCapability(as4BytesCapability4)
+                .build();
+        OptionalCapabilities optionalCapabilities4 =
+                new DefaultOptionalCapabilities.OptionalCapabilitiesBuilder()
+                        .cParameters(cparameters4).build();
+
+        AsNum asNum5 = new AsNum(22);
+        As4BytesCapability as4BytesCapability5 =
+                new DefaultAs4BytesCapability.As4BytesCapabilityBuilder()
+                        .asNumber(asNum5).build();
+        Cparameters cparameters5 =
+                new DefaultCparameters.CparametersBuilder()
+                        .as4BytesCapability(as4BytesCapability5)
+                        .build();
+        OptionalCapabilities optionalCapabilities5 =
+                new DefaultOptionalCapabilities.OptionalCapabilitiesBuilder()
+                        .cParameters(cparameters5).build();
+
+        AsNum asNum6 = new AsNum(33);
+        As4BytesCapability as4BytesCapability6 =
+                new DefaultAs4BytesCapability.As4BytesCapabilityBuilder()
+                        .asNumber(asNum6).build();
+        Cparameters cparameters6 =
+                new DefaultCparameters.CparametersBuilder()
+                        .as4BytesCapability(as4BytesCapability6)
+                        .build();
+        OptionalCapabilities optionalCapabilities6 =
+                new DefaultOptionalCapabilities.OptionalCapabilitiesBuilder()
+                        .cParameters(cparameters6).build();
+
+        BgpParameters bgpParameters2 =
+                new DefaultBgpParameters.BgpParametersBuilder()
+                        .addToOptionalCapabilities(optionalCapabilities4)
+                        .addToOptionalCapabilities(optionalCapabilities5)
+                        .addToOptionalCapabilities(optionalCapabilities6)
+                        .build();
+
+        Attributes attributes = new DefaultAttributes.AttributesBuilder()
+                .origin(origin)
+                .multiExitDisc(multiExitDisc)
+                .localPref(localPref)
+                .aigp(aigp)
+                .addToUnrecognizedAttributes(unrecognizedAttributes1)
+                .addToUnrecognizedAttributes(unrecognizedAttributes2)
+                .addToUnrecognizedAttributes(unrecognizedAttributes3)
+                .addToUnrecognizedAttributes(unrecognizedAttributes4)
+                .addToBgpParameters(bgpParameters1)
+                .addToBgpParameters(bgpParameters2).build();
+        Object object = CombinedOpParam.builder().attributes(attributes)
+                .build();
+
+        yangModuleList.add(object);
+
+        // Get the xml string and compare
+        Map<String, String> tagAttr = new HashMap<String, String>();
+        tagAttr.put("type", "subtree");
+
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler codecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+        String xml = codecHandler.encodeOperation("filter", "ydt.filter-type",
+                                                  tagAttr, yangModuleList,
+                                                  XML, null);
+        assertEquals(AM_XML + "combined: list info", listTestXml(), xml);
+    }
+
+    /**
+     * Unit test case in which verifying xml string for module object with
+     * container.
+     */
+    @Test
+    public void proceessCodecHandlerForContainer() {
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry =
+                testYangSchemaNodeProvider.getDefaultYangSchemaRegistry();
+        List<Object> yangModuleList = new ArrayList<>();
+
+        // Creating the object
+        YchPurchasingSupervisor supervisor =
+                new DefaultYchPurchasingSupervisor
+                        .YchPurchasingSupervisorBuilder()
+                        .ychPurchasingSpecialist("purchasingSpecialist")
+                        .ychPurchasingSupport("support")
+                        .onosYangNodeOperationType(
+                                DefaultYchPurchasingSupervisor
+                                        .OnosYangNodeOperationType
+                                        .CREATE).build();
+        Object object = YchPurchasingsupervisorOpParam.builder()
+                .ychPurchasingSupervisor(supervisor).build();
+        yangModuleList.add(object);
+
+        // Get the xml string and compare
+        Map<String, String> tagAttr = new HashMap<String, String>();
+        tagAttr.put("type", "subtree");
+
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler codecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+        String xml = codecHandler.encodeOperation("filter", "ydt.filter-type",
+                                                  tagAttr, yangModuleList,
+                                                  XML, null);
+        assertEquals(AM_XML + "puchas-super: container info", purchaseXml(),
+                     xml);
+    }
+
+
+    /**
+     * Unit test case in which verifying xml string for module object with
+     * leaf list.
+     */
+    @Test
+    public void proceessCodecHandlerForLeafList() {
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry =
+                testYangSchemaNodeProvider.getDefaultYangSchemaRegistry();
+        List<Object> yangModuleList = new ArrayList<>();
+
+        // Creating the object
+        EmployeeidOpParam.EmployeeidBuilder employeeidBuilder =
+                EmployeeidOpParam.builder();
+        employeeidBuilder.addToEmployeeid("Employ1");
+        employeeidBuilder.addToEmployeeid("Employ2");
+        employeeidBuilder.addToEmployeeid("Employ3");
+        employeeidBuilder.addToEmployeeid("Employ4");
+        employeeidBuilder.addToEmployeeid("Employ5");
+
+        Object object = employeeidBuilder.build();
+        yangModuleList.add(object);
+
+        // Get the xml string and compare
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler codecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+        String xml = codecHandler.encodeOperation("config", "ydt.root", null,
+                                                  yangModuleList, XML, null);
+        assertEquals(AM_XML + "employ-id: leaf-list info", emplyIdXml(), xml);
+        WarehousesupervisorOpParam.WarehousesupervisorBuilder warehsebldr =
+                WarehousesupervisorOpParam.builder();
+        warehsebldr.addToSupervisor("supervisor1");
+        warehsebldr.addToSupervisor("supervisor2");
+        warehsebldr.addToSupervisor("supervisor3");
+        warehsebldr.addToSupervisor("supervisor4");
+        warehsebldr.addToSupervisor("supervisor5");
+
+        object = warehsebldr.build();
+        yangModuleList.clear();
+        yangModuleList.add(object);
+
+
+        // Get the xml string and compare
+        xml = codecHandler.encodeOperation("config", "ydt.root", null,
+                                           yangModuleList, XML, null);
+
+        assertEquals(AM_XML + "warehouse-super: leaf-list info", wareHseXml(),
+                     xml);
+    }
+
+    /**
+     * Unit test case in which verifying xml string for multiple module object.
+     */
+    @Test
+    public void proceessCodecHandlerForMultipleModule() {
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry =
+                testYangSchemaNodeProvider.getDefaultYangSchemaRegistry();
+
+        List<Object> yangModuleList = new ArrayList<>();
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler codecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+
+        // Creating the object for customssupervisor module
+        Object object = CustomssupervisorOpParam.builder()
+                .supervisor("Customssupervisor").build();
+        yangModuleList.add(object);
+
+        // Creating the object for merchandisersupervisor module
+        object = MerchandisersupervisorOpParam.builder()
+                .supervisor("Merchandisersupervisor").build();
+        yangModuleList.add(object);
+
+        // Creating the object for materialsupervisor module
+        Supervisor supervisor1 = new DefaultSupervisor.SupervisorBuilder()
+                .name("abc1").departmentId("xyz1").build();
+        Supervisor supervisor2 = new DefaultSupervisor.SupervisorBuilder()
+                .name("abc2").departmentId("xyz2").build();
+        Supervisor supervisor3 = new DefaultSupervisor.SupervisorBuilder()
+                .name("abc3").departmentId("xyz3").build();
+        Supervisor supervisor4 = new DefaultSupervisor.SupervisorBuilder()
+                .name("abc4").departmentId("xyz4").build();
+        Supervisor supervisor5 = new DefaultSupervisor.SupervisorBuilder()
+                .name("abc5").departmentId("xyz5").build();
+
+        object = MaterialsupervisorOpParam.builder()
+                .addToSupervisor(supervisor1)
+                .addToSupervisor(supervisor2)
+                .addToSupervisor(supervisor3)
+                .addToSupervisor(supervisor4)
+                .addToSupervisor(supervisor5).build();
+
+        yangModuleList.add(object);
+
+        // Creating the object for YchPurchasingsupervisor module
+        YchPurchasingSupervisor purSupervisor =
+                new DefaultYchPurchasingSupervisor
+                        .YchPurchasingSupervisorBuilder()
+                        .ychPurchasingSpecialist("purchasingSpecialist")
+                        .ychPurchasingSupport("support").build();
+        object = YchPurchasingsupervisorOpParam.builder()
+                .ychPurchasingSupervisor(purSupervisor).build();
+        yangModuleList.add(object);
+
+        // Creating the object for warehousesupervisor module
+        WarehousesupervisorOpParam.WarehousesupervisorBuilder warehsebldr =
+                WarehousesupervisorOpParam.builder();
+        warehsebldr.addToSupervisor("supervisor1");
+        warehsebldr.addToSupervisor("supervisor2");
+        warehsebldr.addToSupervisor("supervisor3");
+        warehsebldr.addToSupervisor("supervisor4");
+        warehsebldr.addToSupervisor("supervisor5");
+
+        object = warehsebldr.build();
+        yangModuleList.add(object);
+
+        // Creating the object for tradingsupervisor module
+        object = TradingsupervisorOpParam.builder()
+                .supervisor("Tradingsupervisor").build();
+        yangModuleList.add(object);
+
+        List<String> employeeid = EmployeeidOpParam.builder().employeeid();
+        if (employeeid == null) {
+            employeeid = new ArrayList<>();
+        }
+        employeeid.add("Employ1");
+        employeeid.add("Employ2");
+        employeeid.add("Employ3");
+        employeeid.add("Employ4");
+        employeeid.add("Employ5");
+
+        // Creating the object for employeeid module
+        object = EmployeeidOpParam.builder().employeeid(employeeid).build();
+        yangModuleList.add(object);
+
+        // Get the xml string and compare
+        String xml = codecHandler.encodeOperation("config", "ydt.root", null,
+                                                  yangModuleList, XML, null);
+        assertEquals(AM_XML + "multiple: module info", multiModuleXml(), xml);
+    }
+
+    /**
+     * Unit test case in which verifying object for xml string with config as
+     * root name and empty container.
+     */
+    @Test
+    public void proceessCodecDecodeFunctionForEmptyContainer() {
+        String path = "src/test/resources/ychTestResourceFiles/getconfigemptycontainer.xml";
+        StringBuilder sb = new StringBuilder();
+        String sCurrentLine;
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry =
+                testYangSchemaNodeProvider.getDefaultYangSchemaRegistry();
+
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler defaultYangCodecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+
+        try (BufferedReader br = new BufferedReader(new FileReader(path))) {
+
+            while ((sCurrentLine = br.readLine()) != null) {
+                sb.append(sCurrentLine);
+            }
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        // Verify the received object list
+        List<Object> objectList =
+                defaultYangCodecHandler.decode(sb.toString(),
+                                               XML, QUERY_CONFIG_REQUEST);
+        Iterator<Object> iterator = objectList.iterator();
+        while (iterator.hasNext()) {
+            Object object = iterator.next();
+            if (object.getClass().getSimpleName()
+                    .equals(EMPTY_CONTAINER)) {
+                EmptyContainerOpParam emptyContainerOpParam =
+                        (EmptyContainerOpParam) object;
+                assertNull(AM_OBJ + "empty-container: container value is not" +
+                                      "null",
+                              emptyContainerOpParam.emptyContainer());
+            } else {
+                assertEquals(AM_OBJ, EMPTY_CONTAINER, object
+                        .getClass().getSimpleName());
+            }
+        }
+    }
+
+
+    /**
+     * Unit test case in which verifying object for xml string with config as
+     * root name and multiple module.
+     */
+    @Test
+    public void proceessCodecDecodeFunctionForListInsideList() {
+        String path = "src/test/resources/ychTestResourceFiles/combinedrootname.xml";
+        StringBuilder sb = new StringBuilder();
+        String sCurrentLine;
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry =
+                testYangSchemaNodeProvider.getDefaultYangSchemaRegistry();
+
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler defaultYangCodecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+
+        try (BufferedReader br = new BufferedReader(new FileReader(path))) {
+
+            while ((sCurrentLine = br.readLine()) != null) {
+                sb.append(sCurrentLine);
+            }
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        // TODO YOB and YTB need to do some changes for binary
+        // Verify the received object list
+        /*objectList = defaultYangCodecHandler.decode(sb.toString(),
+                                                    XML_ENCODING,
+                                                    EDIT_CONFIG_REQUEST);
+        Iterator<Object> iterator = objectList.iterator();
+        while (iterator.hasNext()) {
+            Object object = iterator.next();
+            if (object.getClass().getSimpleName().equals("CombinedOpParam")) {
+                CombinedOpParam combinedOpParam = (CombinedOpParam) object;
+
+                PathId pathId = new PathId(123);
+                Origin origin = new DefaultOrigin.OriginBuilder()
+                        .value(pathId).build();
+                assertTrue(combinedOpParam.attributes().origin()
+                                   .equals(origin));
+
+                MultiExitDisc multiExitDisc = new DefaultMultiExitDisc
+                        .MultiExitDiscBuilder().med(456).build();
+                assertTrue(combinedOpParam.attributes().multiExitDisc()
+                                   .equals(multiExitDisc));
+
+                LocalPref localPref = new DefaultLocalPref.LocalPrefBuilder()
+                        .pref(23).build();
+                assertTrue(combinedOpParam.attributes().localPref()
+                                   .equals(localPref));
+
+                Metric metric = new Metric(456);
+                AigpTlv aigpTlv = new DefaultAigpTlv.AigpTlvBuilder()
+                        .metric(metric).build();
+                Aigp aigp = new DefaultAigp.AigpBuilder().aigpTlv(aigpTlv)
+                        .build();
+                assertTrue(combinedOpParam.attributes().aigp().equals(aigp));
+
+                UnrecognizedAttributes unrecognizedAttributes1 =
+                        new DefaultUnrecognizedAttributes
+                                .UnrecognizedAttributesBuilder()
+                                .partial(false).transitive(false).type((short) 1)
+                                .value("ABC".getBytes()).build();
+
+                UnrecognizedAttributes unrecognizedAttributes2 =
+                        new DefaultUnrecognizedAttributes
+                                .UnrecognizedAttributesBuilder()
+                                .partial(true).transitive(true).type((short) 2)
+                                .value("BCA".getBytes()).build();
+
+                UnrecognizedAttributes unrecognizedAttributes3 =
+                        new DefaultUnrecognizedAttributes
+                                .UnrecognizedAttributesBuilder()
+                                .partial(true).transitive(false).type((short) 3)
+                                .value("CAB".getBytes()).build();
+
+                UnrecognizedAttributes unrecognizedAttributes4 =
+                        new DefaultUnrecognizedAttributes
+                                .UnrecognizedAttributesBuilder()
+                                .partial(false).transitive(true).type((short) 4)
+                                .value("111".getBytes()).build();
+
+                AsNum asNum1 = new AsNum(11);
+                As4BytesCapability as4BytesCapability1 =
+                        new DefaultAs4BytesCapability
+                                .As4BytesCapabilityBuilder()
+                                .asNumber(asNum1).build();
+                Cparameters cparameters1 = new DefaultCparameters
+                        .CparametersBuilder()
+                        .as4BytesCapability(as4BytesCapability1)
+                        .build();
+                OptionalCapabilities optionalCapabilities1 =
+                        new DefaultOptionalCapabilities
+                                .OptionalCapabilitiesBuilder()
+                                .cParameters(cparameters1).build();
+
+                AsNum asNum2 = new AsNum(22);
+                As4BytesCapability as4BytesCapability2 =
+                        new DefaultAs4BytesCapability
+                                .As4BytesCapabilityBuilder()
+                                .asNumber(asNum2).build();
+                Cparameters cparameters2 = new DefaultCparameters
+                        .CparametersBuilder()
+                        .as4BytesCapability(as4BytesCapability2)
+                        .build();
+                OptionalCapabilities optionalCapabilities2 =
+                        new DefaultOptionalCapabilities
+                                .OptionalCapabilitiesBuilder()
+                                .cParameters(cparameters2).build();
+
+                AsNum asNum3 = new AsNum(33);
+                As4BytesCapability as4BytesCapability3 =
+                        new DefaultAs4BytesCapability
+                                .As4BytesCapabilityBuilder()
+                                .asNumber(asNum3).build();
+                Cparameters cparameters3 =
+                        new DefaultCparameters.CparametersBuilder()
+                                .as4BytesCapability(as4BytesCapability3)
+                                .build();
+                OptionalCapabilities optionalCapabilities3 =
+                        new DefaultOptionalCapabilities
+                                .OptionalCapabilitiesBuilder()
+                                .cParameters(cparameters3).build();
+
+                BgpParameters bgpParameters1 =
+                        new DefaultBgpParameters.BgpParametersBuilder()
+                                .addToOptionalCapabilities(optionalCapabilities1)
+                                .addToOptionalCapabilities(optionalCapabilities2)
+                                .addToOptionalCapabilities(optionalCapabilities3)
+                                .build();
+
+                AsNum asNum4 = new AsNum(11);
+                As4BytesCapability as4BytesCapability4 =
+                        new DefaultAs4BytesCapability
+                                .As4BytesCapabilityBuilder()
+                                .asNumber(asNum4).build();
+                Cparameters cparameters4 =
+                        new DefaultCparameters.CparametersBuilder()
+                                .as4BytesCapability(as4BytesCapability4)
+                                .build();
+                OptionalCapabilities optionalCapabilities4 =
+                        new DefaultOptionalCapabilities
+                                .OptionalCapabilitiesBuilder()
+                                .cParameters(cparameters4).build();
+
+                AsNum asNum5 = new AsNum(22);
+                As4BytesCapability as4BytesCapability5 =
+                        new DefaultAs4BytesCapability
+                                .As4BytesCapabilityBuilder()
+                                .asNumber(asNum5).build();
+                Cparameters cparameters5 =
+                        new DefaultCparameters.CparametersBuilder()
+                                .as4BytesCapability(as4BytesCapability5)
+                                .build();
+                OptionalCapabilities optionalCapabilities5 =
+                        new DefaultOptionalCapabilities
+                                .OptionalCapabilitiesBuilder()
+                                .cParameters(cparameters5).build();
+
+                AsNum asNum6 = new AsNum(33);
+                As4BytesCapability as4BytesCapability6 =
+                        new DefaultAs4BytesCapability
+                                .As4BytesCapabilityBuilder()
+                                .asNumber(asNum6).build();
+                Cparameters cparameters6 =
+                        new DefaultCparameters.CparametersBuilder()
+                                .as4BytesCapability(as4BytesCapability6)
+                                .build();
+                OptionalCapabilities optionalCapabilities6 =
+                        new DefaultOptionalCapabilities
+                                .OptionalCapabilitiesBuilder()
+                                .cParameters(cparameters6).build();
+
+                BgpParameters bgpParameters2 =
+                        new DefaultBgpParameters.BgpParametersBuilder()
+                                .addToOptionalCapabilities(optionalCapabilities4)
+                                .addToOptionalCapabilities(optionalCapabilities5)
+                                .addToOptionalCapabilities(optionalCapabilities6)
+                                .build();
+
+                Attributes attributes =
+                        new DefaultAttributes.AttributesBuilder()
+                                .origin(origin)
+                                .multiExitDisc(multiExitDisc)
+                                .localPref(localPref)
+                                .aigp(aigp)
+                                .addToUnrecognizedAttributes(unrecognizedAttributes1)
+                                .addToUnrecognizedAttributes(unrecognizedAttributes2)
+                                .addToUnrecognizedAttributes(unrecognizedAttributes3)
+                                .addToUnrecognizedAttributes(unrecognizedAttributes4)
+                                .addToBgpParameters(bgpParameters1)
+                                .addToBgpParameters(bgpParameters2).build();
+            } else {
+                assertTrue(false);
+            }
+        }*/
+    }
+
+    /**
+     * Unit test case in which verifying object for xml string with config as root name and
+     * operation type.
+     */
+    @Test
+    public void proceessCodecDecodeFunctionForOperTypeTest() {
+        String path = "src/test/resources/ychTestResourceFiles/configrootnameOperationType.xml";
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry =
+                testYangSchemaNodeProvider.getDefaultYangSchemaRegistry();
+
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler defaultYangCodecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+
+        StringBuilder sb = new StringBuilder();
+        String sCurrentLine;
+
+        try (BufferedReader br = new BufferedReader(new FileReader(path))) {
+
+            while ((sCurrentLine = br.readLine()) != null) {
+                sb.append(sCurrentLine);
+            }
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        // Verify the received object list
+        List<Object> objectList =
+                defaultYangCodecHandler.decode(sb.toString(),
+                                               XML, EDIT_CONFIG_REQUEST);
+        Iterator<Object> iterator = objectList.iterator();
+        while (iterator.hasNext()) {
+            Object object = iterator.next();
+            if (object.getClass().getSimpleName()
+                    .equals(LOGISTIC_MOD)) {
+                LogisticsManagerOpParam logistics =
+                        (LogisticsManagerOpParam) object;
+                DefaultPurchasingSupervisor purchasingSupervisor =
+                        (DefaultPurchasingSupervisor) logistics
+                                .purchasingSupervisor();
+
+                assertEquals(AM_OBJ + "purchase-super: operation type", DELETE,
+                             purchasingSupervisor.onosYangNodeOperationType());
+                assertEquals(AM_OBJ + "customs-super: leaf value", "abc",
+                             logistics.customsSupervisor());
+                assertEquals(AM_OBJ + "purchase-spec: leaf value", "bcd",
+                             logistics.purchasingSupervisor()
+                                     .purchasingSpecialist());
+                assertEquals(AM_OBJ + "purchase-support: leaf value",
+                             "cde", logistics.purchasingSupervisor()
+                                     .support());
+
+            } else if (object.getClass().getSimpleName()
+                    .equals(MERCHA_MOD)) {
+                MerchandisersupervisorOpParam merchandisersupervisorOpParam =
+                        (MerchandisersupervisorOpParam) object;
+                assertEquals(AM_OBJ + "merchandiser-super: leaf value",
+                             "abc", merchandisersupervisorOpParam.supervisor());
+            } else {
+                assertEquals(AM_OBJ, LOGISTIC_MOD, object
+                        .getClass().getSimpleName());
+                assertEquals(AM_OBJ, MERCHA_MOD, object
+                        .getClass().getSimpleName());
+            }
+        }
+    }
+
+    /**
+     * Validate the leaf value for purchasing specialist.
+     *
+     * @param objectList object list
+     */
+    private void processPurchasingSpecObj(List<Object> objectList) {
+        Iterator<Object> iterator = objectList.iterator();
+        while (iterator.hasNext()) {
+            Object object = iterator.next();
+            if (object.getClass().getSimpleName()
+                    .equals("LogisticsManagerOpParam")) {
+                LogisticsManagerOpParam logisticsManagerOpParam =
+                        (LogisticsManagerOpParam) object;
+                assertEquals(AM_OBJ + "purchasing-spec: leaf value", "bcd",
+                             logisticsManagerOpParam.purchasingSupervisor()
+                                     .purchasingSpecialist());
+            } else {
+                assertEquals(AM_OBJ, "LogisticsManagerOpParam", object
+                        .getClass().getSimpleName());
+            }
+        }
+
+    }
+
+    /**
+     * Validate the leaf value for merchandiser supervisor.
+     *
+     * @param objectList object list
+     */
+    private void processMerchandiserObj(List<Object> objectList) {
+        Iterator<Object> iterator = objectList.iterator();
+        while (iterator.hasNext()) {
+            Object object = iterator.next();
+            if (object.getClass().getSimpleName()
+                    .equals(MERCHA_MOD)) {
+                MerchandisersupervisorOpParam merchandisersupervisorOpParam =
+                        (MerchandisersupervisorOpParam) object;
+                assertEquals(AM_OBJ + "merchandiser-super: leaf value", "abc",
+                             merchandisersupervisorOpParam.supervisor());
+
+            } else {
+                assertEquals(AM_OBJ, MERCHA_MOD, object
+                        .getClass().getSimpleName());
+            }
+        }
+    }
+
+    /**
+     * Unit test case in which verifying object for xml string with get and
+     * filter as root name.
+     */
+    @Test
+    public void proceessCodecDecodeFunctionForGet() {
+        String path = "src/test/resources/ychTestResourceFiles/getrootname.xml";
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry =
+                testYangSchemaNodeProvider.getDefaultYangSchemaRegistry();
+
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler defaultYangCodecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+
+        StringBuilder sb = new StringBuilder();
+        String sCurrentLine;
+
+        try (BufferedReader br = new BufferedReader(new FileReader(path))) {
+
+            while ((sCurrentLine = br.readLine()) != null) {
+                sb.append(sCurrentLine);
+            }
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        // Verify the received object list
+        List<Object> objectList =
+                defaultYangCodecHandler.decode(sb.toString(),
+                                               XML, QUERY_REQUEST);
+        processPurchasingSpecObj(objectList);
+    }
+
+    /**
+     * Unit test case in which verifying object for xml string with get-config
+     * and filter as root name.
+     */
+    @Test
+    public void proceessCodecDecodeFunctionForGetConfig() {
+        String path = "src/test/resources/ychTestResourceFiles/getconfigrootname.xml";
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry =
+                testYangSchemaNodeProvider.getDefaultYangSchemaRegistry();
+
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler defaultYangCodecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+
+        StringBuilder sb = new StringBuilder();
+        String sCurrentLine;
+
+        try (BufferedReader br = new BufferedReader(new FileReader(path))) {
+
+            while ((sCurrentLine = br.readLine()) != null) {
+                sb.append(sCurrentLine);
+            }
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        // Verify the received object list
+        List<Object> objectList = defaultYangCodecHandler.decode(
+                sb.toString(),
+                XML, QUERY_CONFIG_REQUEST);
+        processMerchandiserObj(objectList);
+    }
+
+    /**
+     * Unit test case in which verifying object for xml string with data as
+     * root name.
+     */
+    @Test
+    public void proceessCodecDecodeFunctionForGetData() {
+        String path = "src/test/resources/ychTestResourceFiles/getReply.xml";
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry =
+                testYangSchemaNodeProvider.getDefaultYangSchemaRegistry();
+
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler defaultYangCodecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+
+        StringBuilder sb = new StringBuilder();
+        String sCurrentLine;
+
+        try (BufferedReader br = new BufferedReader(new FileReader(path))) {
+
+            while ((sCurrentLine = br.readLine()) != null) {
+                sb.append(sCurrentLine);
+            }
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        // Verify the received object list
+        List<Object> objectList = defaultYangCodecHandler.decode(
+                sb.toString(),
+                XML, QUERY_CONFIG_REQUEST);
+        processPurchasingSpecObj(objectList);
+    }
+
+    /**
+     * Unit test case in which verifying object for xml string with rpc-reply
+     * and data as root name .
+     */
+    @Test
+    public void proceessCodecDecodeFunctionForGetConfigData() {
+        String path = "src/test/resources/ychTestResourceFiles/getconfigReply.xml";
+        testYangSchemaNodeProvider.processSchemaRegistry(null);
+        DefaultYangSchemaRegistry schemaRegistry =
+                testYangSchemaNodeProvider.getDefaultYangSchemaRegistry();
+
+        YangCodecRegistry.initializeDefaultCodec();
+        DefaultYangCodecHandler defaultYangCodecHandler =
+                new DefaultYangCodecHandler(schemaRegistry);
+
+        StringBuilder sb = new StringBuilder();
+        String sCurrentLine;
+
+        try (BufferedReader br = new BufferedReader(new FileReader(path))) {
+
+            while ((sCurrentLine = br.readLine()) != null) {
+                sb.append(sCurrentLine);
+            }
+
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+
+        // Verify the received object list
+        List<Object> objectList = defaultYangCodecHandler.decode(sb.toString(),
+                                                                 XML, null);
+        processMerchandiserObj(objectList);
+    }
+}
\ No newline at end of file
diff --git a/apps/yms/app/src/test/java/org/onosproject/yms/app/ymsm/MockCoreService.java b/apps/yms/app/src/test/java/org/onosproject/yms/app/ymsm/MockCoreService.java
new file mode 100644
index 0000000..62f00aa
--- /dev/null
+++ b/apps/yms/app/src/test/java/org/onosproject/yms/app/ymsm/MockCoreService.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright 2016-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.yms.app.ymsm;
+
+import org.onosproject.core.ApplicationId;
+import org.onosproject.core.CoreService;
+import org.onosproject.core.IdGenerator;
+import org.onosproject.core.Version;
+
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicLong;
+
+/**
+ * Represents implementation of CoreService interfaces.
+ */
+public class MockCoreService implements CoreService {
+    @Override
+    public Version version() {
+        return null;
+    }
+
+    @Override
+    public Set<ApplicationId> getAppIds() {
+        return null;
+    }
+
+    @Override
+    public ApplicationId getAppId(Short id) {
+        return null;
+    }
+
+    @Override
+    public ApplicationId getAppId(String name) {
+        return null;
+    }
+
+    @Override
+    public ApplicationId registerApplication(String name) {
+        return null;
+    }
+
+    @Override
+    public ApplicationId registerApplication(String name,
+                                             Runnable preDeactivate) {
+        return null;
+    }
+
+    @Override
+    public IdGenerator getIdGenerator(String topic) {
+        return new IdGenerator() {
+            private AtomicLong counter = new AtomicLong(0);
+
+            @Override
+            public long getNewId() {
+                return counter.getAndIncrement();
+            }
+        };
+    }
+}
diff --git a/apps/yms/app/src/test/java/org/onosproject/yms/app/ymsm/MockOverriddenDataTreeCodec.java b/apps/yms/app/src/test/java/org/onosproject/yms/app/ymsm/MockOverriddenDataTreeCodec.java
new file mode 100644
index 0000000..73fddbf
--- /dev/null
+++ b/apps/yms/app/src/test/java/org/onosproject/yms/app/ymsm/MockOverriddenDataTreeCodec.java
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2016-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.yms.app.ymsm;
+
+import org.onosproject.yms.app.ych.YchException;
+import org.onosproject.yms.ych.YangCompositeEncoding;
+import org.onosproject.yms.ych.YangDataTreeCodec;
+import org.onosproject.yms.ydt.YdtBuilder;
+import org.onosproject.yms.ydt.YmsOperationType;
+
+/**
+ * Represents implementation of overridden YANG data tree codec interfaces.
+ */
+public class MockOverriddenDataTreeCodec implements YangDataTreeCodec {
+    private static final String PREFIX = "OverriddenDataTreeCodec ";
+    private static final String ENCODE = PREFIX +
+            "encodeYdtToProtocolFormat Called.";
+    private static final String COMPOSITE_ENCODE = PREFIX +
+            "encodeYdtToCompositeProtocolFormat Called.";
+    private static final String DECODE = PREFIX +
+            "decodeProtocolDataToYdt Called.";
+    private static final String COMPOSITE_DECODE = PREFIX +
+            "decodeCompositeProtocolDataToYdt Called.";
+
+    @Override
+    public String encodeYdtToProtocolFormat(YdtBuilder ydtBuilder) {
+
+        throw new YchException(ENCODE);
+    }
+
+    @Override
+    public YangCompositeEncoding encodeYdtToCompositeProtocolFormat(
+            YdtBuilder ydtBuilder) {
+
+        throw new YchException(COMPOSITE_ENCODE);
+    }
+
+    @Override
+    public YdtBuilder decodeProtocolDataToYdt(String protocolData,
+                                              Object schemaRegistryForYdt,
+                                              YmsOperationType proOper) {
+
+        throw new YchException(DECODE);
+    }
+
+    @Override
+    public YdtBuilder decodeCompositeProtocolDataToYdt(
+            YangCompositeEncoding protocolData,
+            Object schemaRegistryForYdt,
+            YmsOperationType proOper) {
+
+        throw new YchException(COMPOSITE_DECODE);
+    }
+}
diff --git a/apps/yms/app/src/test/java/org/onosproject/yms/app/ymsm/MockRegisteredDataTreeCodec.java b/apps/yms/app/src/test/java/org/onosproject/yms/app/ymsm/MockRegisteredDataTreeCodec.java
new file mode 100644
index 0000000..84117e7
--- /dev/null
+++ b/apps/yms/app/src/test/java/org/onosproject/yms/app/ymsm/MockRegisteredDataTreeCodec.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2016-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.yms.app.ymsm;
+
+import org.onosproject.yms.app.ych.YchException;
+import org.onosproject.yms.ych.YangCompositeEncoding;
+import org.onosproject.yms.ych.YangDataTreeCodec;
+import org.onosproject.yms.ydt.YdtBuilder;
+import org.onosproject.yms.ydt.YmsOperationType;
+
+/**
+ * Represents implementation of YANG SBI broker interfaces.
+ */
+public class MockRegisteredDataTreeCodec implements YangDataTreeCodec {
+    private static final String PREFIX = "RegisteredDataTreeCodec ";
+    private static final String ENCODE = PREFIX +
+            "encodeYdtToProtocolFormat Called.";
+    private static final String COMPOSITE_ENCODE = PREFIX +
+            "encodeYdtToCompositeProtocolFormat Called.";
+    private static final String DECODE = PREFIX +
+            "decodeProtocolDataToYdt Called.";
+    private static final String COMPOSITE_DECODE = PREFIX +
+            "decodeCompositeProtocolDataToYdt Called.";
+
+    @Override
+    public String encodeYdtToProtocolFormat(YdtBuilder ydtBuilder) {
+        throw new YchException(ENCODE);
+    }
+
+    @Override
+    public YangCompositeEncoding encodeYdtToCompositeProtocolFormat(
+            YdtBuilder ydtBuilder) {
+
+        throw new YchException(COMPOSITE_ENCODE);
+    }
+
+    @Override
+    public YdtBuilder decodeProtocolDataToYdt(String protocolData,
+                                              Object schemaRegistry,
+                                              YmsOperationType proOper) {
+
+        throw new YchException(DECODE);
+    }
+
+    @Override
+    public YdtBuilder decodeCompositeProtocolDataToYdt(
+            YangCompositeEncoding protocolData,
+            Object schemaRegistry,
+            YmsOperationType proOper) {
+
+        throw new YchException(COMPOSITE_DECODE);
+    }
+}
diff --git a/apps/yms/app/src/test/java/org/onosproject/yms/app/ymsm/MockYangCompositeEncoding.java b/apps/yms/app/src/test/java/org/onosproject/yms/app/ymsm/MockYangCompositeEncoding.java
new file mode 100644
index 0000000..1f52da6
--- /dev/null
+++ b/apps/yms/app/src/test/java/org/onosproject/yms/app/ymsm/MockYangCompositeEncoding.java
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2016-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.yms.app.ymsm;
+
+import org.onosproject.yms.ych.YangCompositeEncoding;
+import org.onosproject.yms.ych.YangResourceIdentifierType;
+
+/**
+ * Represents implementation of YangCompositeEncoding interfaces.
+ */
+public class MockYangCompositeEncoding implements YangCompositeEncoding {
+    /**
+     * Resource identifier for composite encoding.
+     */
+    private String resourceIdentifier;
+
+    /**
+     * Resource information for composite encoding.
+     */
+    private String resourceInformation;
+
+    /**
+     * Resource identifier type.
+     */
+    private YangResourceIdentifierType resourceIdentifierType;
+
+    /**
+     * Sets resource identifier.
+     *
+     * @param resIdentifier resource identifier
+     */
+    public void setResourceIdentifier(String resIdentifier) {
+        resourceIdentifier = resIdentifier;
+    }
+
+    /**
+     * Sets the resource information.
+     *
+     * @param resInformation resource information
+     */
+    public void setResourceInformation(String resInformation) {
+        resourceInformation = resInformation;
+    }
+
+    /**
+     * Sets the resource identifier type.
+     *
+     * @param resIdent resource identifier
+     */
+    public void setResourceIdentifierType(YangResourceIdentifierType resIdent) {
+        resourceIdentifierType = resIdent;
+    }
+
+    @Override
+    public String getResourceIdentifier() {
+        return resourceIdentifier;
+    }
+
+    @Override
+    public YangResourceIdentifierType getResourceIdentifierType() {
+        return resourceIdentifierType;
+    }
+
+    @Override
+    public String getResourceInformation() {
+        return resourceInformation;
+    }
+}
diff --git a/apps/yms/app/src/test/java/org/onosproject/yms/app/ymsm/YchCompositeHandlerTest.java b/apps/yms/app/src/test/java/org/onosproject/yms/app/ymsm/YchCompositeHandlerTest.java
new file mode 100644
index 0000000..794298e
--- /dev/null
+++ b/apps/yms/app/src/test/java/org/onosproject/yms/app/ymsm/YchCompositeHandlerTest.java
@@ -0,0 +1,288 @@
+/*
+ * Copyright 2016-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.yms.app.ymsm;
+
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.rules.ExpectedException;
+import org.onosproject.yang.gen.v1.ydt.customs.supervisor.rev20160524.CustomssupervisorOpParam;
+import org.onosproject.yms.app.ych.defaultcodecs.YangCodecRegistry;
+import org.onosproject.yms.app.ysr.TestYangSchemaNodeProvider;
+import org.onosproject.yms.ych.YangCodecHandler;
+import org.onosproject.yms.ych.YangCompositeEncoding;
+import org.onosproject.yms.ych.YangDataTreeCodec;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import static junit.framework.TestCase.assertNotNull;
+import static org.onosproject.yms.ych.YangProtocolEncodingFormat.XML;
+
+/**
+ * Unit test case for YCH composite codec handler.
+ */
+public class YchCompositeHandlerTest {
+    @Rule
+    public ExpectedException thrown = ExpectedException.none();
+
+    private static final String REG_PREFIX = "RegisteredDataTreeCodec ";
+    private static final String REG_ENCODE = REG_PREFIX +
+            "encodeYdtToProtocolFormat Called.";
+    private static final String REG_DECODE = REG_PREFIX +
+            "decodeProtocolDataToYdt Called.";
+    private static final String REG_COMPO_ENCODE = REG_PREFIX +
+            "encodeYdtToCompositeProtocolFormat Called.";
+    private static final String REG_COMPO_DECODE = REG_PREFIX +
+            "decodeCompositeProtocolDataToYdt Called.";
+    private static final String OVERRIDE_PREFIX = "OverriddenDataTreeCodec ";
+    private static final String OVERRIDE_ENCODE = OVERRIDE_PREFIX +
+            "encodeYdtToProtocolFormat Called.";
+    private static final String OVERRIDE_DECODE = OVERRIDE_PREFIX +
+            "decodeProtocolDataToYdt Called.";
+    private static final String OVERRIDE_COMPO_ENCODE = OVERRIDE_PREFIX +
+            "encodeYdtToCompositeProtocolFormat Called.";
+    private static final String OVERRIDE_COMPO_DECODE = OVERRIDE_PREFIX +
+            "decodeCompositeProtocolDataToYdt Called.";
+
+    private TestYangSchemaNodeProvider provider =
+            new TestYangSchemaNodeProvider();
+
+    /**
+     * Unit test case in which verifying codec handler is null or not.
+     */
+    @Test
+    public void checkForCodecHandler() {
+        YmsManager ymsManager = new YmsManager();
+        ymsManager.coreService = new MockCoreService();
+        ymsManager.activate();
+        YangCodecHandler yangCodecHandler = ymsManager.getYangCodecHandler();
+        assertNotNull("Codec handler is null", yangCodecHandler);
+    }
+
+    /**
+     * Unit test case in which verifying registered codec handler for encode is
+     * null or not.
+     */
+    @Test
+    public void checkForRegisterDefaultCodecEncode() {
+        thrown.expectMessage(REG_ENCODE);
+        YangDataTreeCodec yangDataTreeCodec = new MockRegisteredDataTreeCodec();
+        YmsManager ymsManager = new YmsManager();
+        YangCodecRegistry.initializeDefaultCodec();
+        ymsManager.coreService = new MockCoreService();
+        ymsManager.activate();
+        ymsManager.registerDefaultCodec(yangDataTreeCodec, XML);
+        YangCodecHandler yangCodecHandler = ymsManager.getYangCodecHandler();
+        assertNotNull("Codec handler is null", yangCodecHandler);
+
+        provider.processSchemaRegistry(null);
+        List<Object> yangModuleList = new ArrayList<>();
+
+        // Creating the object
+        Object object = CustomssupervisorOpParam.builder()
+                .supervisor("Customssupervisor").build();
+        yangModuleList.add(object);
+
+        // Get the xml string and compare
+        Map<String, String> tagAttr = new HashMap<String, String>();
+        tagAttr.put("type", "subtree");
+
+        yangCodecHandler.encodeOperation("filter", "ydt.filter-type",
+                                         tagAttr, yangModuleList,
+                                         XML, null);
+    }
+
+    /**
+     * Unit test case in which verifying registered codec handler for decode is
+     * null or not.
+     */
+    @Test
+    public void checkForRegisterDefaultCodecDecode() {
+        thrown.expectMessage(REG_DECODE);
+        YangDataTreeCodec yangDataTreeCodec = new MockRegisteredDataTreeCodec();
+        YmsManager ymsManager = new YmsManager();
+        YangCodecRegistry.initializeDefaultCodec();
+        ymsManager.coreService = new MockCoreService();
+        ymsManager.activate();
+        ymsManager.registerDefaultCodec(yangDataTreeCodec, XML);
+        YangCodecHandler yangCodecHandler = ymsManager.getYangCodecHandler();
+        assertNotNull("Codec handler is null", yangCodecHandler);
+
+        provider.processSchemaRegistry(null);
+        yangCodecHandler.decode("XML String", XML, null);
+    }
+
+    /**
+     * Unit test case in which verifying registered codec handler for
+     * composite encode is null or not.
+     */
+    @Test
+    public void checkForRegisterDefaultCodecCompEncode() {
+        thrown.expectMessage(REG_COMPO_ENCODE);
+        YangDataTreeCodec yangDataTreeCodec = new MockRegisteredDataTreeCodec();
+        YmsManager ymsManager = new YmsManager();
+        YangCodecRegistry.initializeDefaultCodec();
+        ymsManager.coreService = new MockCoreService();
+        ymsManager.activate();
+        ymsManager.registerDefaultCodec(yangDataTreeCodec, XML);
+        YangCodecHandler yangCodecHandler = ymsManager.getYangCodecHandler();
+        assertNotNull("Codec handler is null", yangCodecHandler);
+
+        provider.processSchemaRegistry(null);
+        // Creating the object
+        Object object = CustomssupervisorOpParam.builder()
+                .supervisor("Customssupervisor").build();
+
+        yangCodecHandler.encodeCompositeOperation("filter",
+                                                  "ydt.filter-type", object,
+                                                  XML, null);
+    }
+
+    /**
+     * Unit test case in which verifying registered codec handler for
+     * composite decode is null or not.
+     */
+    @Test
+    public void checkForRegisterDefaultCodecCompDecode() {
+        thrown.expectMessage(REG_COMPO_DECODE);
+        YangDataTreeCodec yangDataTreeCodec = new MockRegisteredDataTreeCodec();
+        YmsManager ymsManager = new YmsManager();
+        YangCodecRegistry.initializeDefaultCodec();
+        ymsManager.coreService = new MockCoreService();
+        ymsManager.activate();
+        ymsManager.registerDefaultCodec(yangDataTreeCodec, XML);
+        YangCodecHandler yangCodecHandler = ymsManager.getYangCodecHandler();
+        assertNotNull("Codec handler is null", yangCodecHandler);
+
+        provider.processSchemaRegistry(null);
+        // Creating the object
+        YangCompositeEncoding yangCompositeEncoding =
+                new MockYangCompositeEncoding();
+        yangCodecHandler.decode(yangCompositeEncoding, XML, null);
+    }
+
+    /**
+     * Unit test case in which verifying overridden codec handler for encode is
+     * null or not.
+     */
+    @Test
+    public void checkForOverriddenDataTreeCodecEncode() {
+        thrown.expectMessage(OVERRIDE_ENCODE);
+        YangDataTreeCodec yangDataTreeCodec = new MockRegisteredDataTreeCodec();
+        YmsManager ymsManager = new YmsManager();
+        ymsManager.coreService = new MockCoreService();
+        ymsManager.activate();
+        ymsManager.registerDefaultCodec(yangDataTreeCodec, XML);
+        YangCodecHandler yangCodecHandler = ymsManager.getYangCodecHandler();
+        assertNotNull("Codec handler is null", yangCodecHandler);
+
+        YangDataTreeCodec overriddenCodec = new MockOverriddenDataTreeCodec();
+        yangCodecHandler.registerOverriddenCodec(overriddenCodec, XML);
+
+        provider.processSchemaRegistry(null);
+        List<Object> yangModuleList = new ArrayList<>();
+
+        // Creating the object
+        Object object = CustomssupervisorOpParam.builder()
+                .supervisor("Customssupervisor").build();
+        yangModuleList.add(object);
+
+        // Get the xml string and compare
+        Map<String, String> tagAttr = new HashMap<String, String>();
+        tagAttr.put("type", "subtree");
+        yangCodecHandler.encodeOperation("filter", "ydt.filter-type",
+                                         tagAttr, yangModuleList,
+                                         XML, null);
+    }
+
+    /**
+     * Unit test case in which verifying overridden codec handler for decode is
+     * null or not.
+     */
+    @Test
+    public void checkForOverriddenDataTreeCodecDecode() {
+        thrown.expectMessage(OVERRIDE_DECODE);
+        YangDataTreeCodec yangDataTreeCodec = new MockRegisteredDataTreeCodec();
+        YmsManager ymsManager = new YmsManager();
+        ymsManager.coreService = new MockCoreService();
+        ymsManager.activate();
+        ymsManager.registerDefaultCodec(yangDataTreeCodec, XML);
+        YangCodecHandler yangCodecHandler = ymsManager.getYangCodecHandler();
+        assertNotNull("Codec handler is null", yangCodecHandler);
+
+        YangDataTreeCodec overriddenCodec = new MockOverriddenDataTreeCodec();
+        yangCodecHandler.registerOverriddenCodec(overriddenCodec, XML);
+
+        provider.processSchemaRegistry(null);
+        yangCodecHandler.decode("XML String", XML, null);
+    }
+
+    /**
+     * Unit test case in which verifying overridden codec handler for
+     * composite encode is null or not.
+     */
+    @Test
+    public void checkForOverriddenDataTreeCodecCompoEncode() {
+        thrown.expectMessage(OVERRIDE_COMPO_ENCODE);
+        YangDataTreeCodec yangDataTreeCodec = new MockRegisteredDataTreeCodec();
+        YmsManager ymsManager = new YmsManager();
+        ymsManager.coreService = new MockCoreService();
+        ymsManager.activate();
+        ymsManager.registerDefaultCodec(yangDataTreeCodec, XML);
+        YangCodecHandler yangCodecHandler = ymsManager.getYangCodecHandler();
+        assertNotNull("Codec handler is null", yangCodecHandler);
+
+        YangDataTreeCodec overriddenCodec = new MockOverriddenDataTreeCodec();
+        yangCodecHandler.registerOverriddenCodec(overriddenCodec, XML);
+
+        provider.processSchemaRegistry(null);
+        // Creating the object
+        Object object = CustomssupervisorOpParam.builder()
+                .supervisor("Customssupervisor").build();
+        yangCodecHandler.encodeCompositeOperation("filter",
+                                                  "ydt.filter-type",
+                                                  object,
+                                                  XML, null);
+    }
+
+    /**
+     * Unit test case in which verifying overridden codec handler for
+     * composite decode is null or not.
+     */
+    @Test
+    public void checkForOverriddenDataTreeCodecCompoDecode() {
+        thrown.expectMessage(OVERRIDE_COMPO_DECODE);
+        YangDataTreeCodec yangDataTreeCodec = new MockRegisteredDataTreeCodec();
+        YmsManager ymsManager = new YmsManager();
+        ymsManager.coreService = new MockCoreService();
+        ymsManager.activate();
+        ymsManager.registerDefaultCodec(yangDataTreeCodec, XML);
+        YangCodecHandler yangCodecHandler = ymsManager.getYangCodecHandler();
+        assertNotNull("Codec handler is null", yangCodecHandler);
+
+        YangDataTreeCodec overriddenCodec = new MockOverriddenDataTreeCodec();
+        yangCodecHandler.registerOverriddenCodec(overriddenCodec, XML);
+
+        provider.processSchemaRegistry(null);
+        // Verify the received object list
+        YangCompositeEncoding yangCompositeEncoding =
+                new MockYangCompositeEncoding();
+        yangCodecHandler.decode(yangCompositeEncoding, XML, null);
+    }
+}