Merge "FlowCapableTopologyExporter uses merge instead of push when link discovered"
[controller.git] / opendaylight / md-sal / sal-rest-connector / src / test / java / org / opendaylight / controller / sal / restconf / impl / test / RestGetOperationTest.java
index ebc8a09f151adccaf9916c5d8a0062c9a2eef7bb..06cfd84b05048513249462de9245871da3905c5f 100644 (file)
+/*
+ * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
 package org.opendaylight.controller.sal.restconf.impl.test;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
 import static org.mockito.Matchers.any;
+import static org.mockito.Matchers.eq;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
-import static org.opendaylight.controller.sal.restconf.impl.test.RestOperationUtils.XML;
-import static org.opendaylight.controller.sal.restconf.impl.test.RestOperationUtils.createUri;
 
+import com.google.common.base.Optional;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Maps;
 import java.io.FileNotFoundException;
 import java.io.UnsupportedEncodingException;
 import java.net.URI;
 import java.net.URISyntaxException;
+import java.text.ParseException;
+import java.text.SimpleDateFormat;
 import java.util.ArrayList;
+import java.util.Date;
+import java.util.HashSet;
 import java.util.List;
-
+import java.util.Map;
+import java.util.Set;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 import javax.ws.rs.core.Application;
 import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.MultivaluedHashMap;
+import javax.ws.rs.core.MultivaluedMap;
 import javax.ws.rs.core.Response;
-
+import javax.ws.rs.core.UriInfo;
 import org.glassfish.jersey.server.ResourceConfig;
 import org.glassfish.jersey.test.JerseyTest;
 import org.junit.BeforeClass;
+import org.junit.Ignore;
 import org.junit.Test;
-import org.opendaylight.controller.sal.core.api.mount.MountInstance;
-import org.opendaylight.controller.sal.core.api.mount.MountService;
-import org.opendaylight.controller.sal.rest.api.Draft02;
+import org.mockito.invocation.InvocationOnMock;
+import org.mockito.stubbing.Answer;
+import org.opendaylight.controller.md.sal.dom.api.DOMMountPoint;
+import org.opendaylight.controller.md.sal.dom.api.DOMMountPointService;
 import org.opendaylight.controller.sal.rest.impl.JsonToCompositeNodeProvider;
+import org.opendaylight.controller.sal.rest.impl.RestconfApplication;
+import org.opendaylight.controller.sal.rest.impl.RestconfDocumentedExceptionMapper;
 import org.opendaylight.controller.sal.rest.impl.StructuredDataToJsonProvider;
 import org.opendaylight.controller.sal.rest.impl.StructuredDataToXmlProvider;
 import org.opendaylight.controller.sal.rest.impl.XmlToCompositeNodeProvider;
 import org.opendaylight.controller.sal.restconf.impl.BrokerFacade;
-import org.opendaylight.controller.sal.restconf.impl.CompositeNodeWrapper;
 import org.opendaylight.controller.sal.restconf.impl.ControllerContext;
+import org.opendaylight.controller.sal.restconf.impl.RestconfDocumentedException;
 import org.opendaylight.controller.sal.restconf.impl.RestconfImpl;
-import org.opendaylight.controller.sal.restconf.impl.SimpleNodeWrapper;
+import org.opendaylight.yangtools.yang.common.QName;
 import org.opendaylight.yangtools.yang.data.api.CompositeNode;
-import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
-import org.opendaylight.yangtools.yang.data.api.Node;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
+import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.data.impl.ImmutableCompositeNode;
+import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
+import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafNodeBuilder;
+import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableMapEntryNodeBuilder;
+import org.opendaylight.yangtools.yang.data.impl.util.CompositeNodeBuilder;
+import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
+import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.Module;
+import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import org.w3c.dom.Document;
+import org.w3c.dom.Element;
+import org.w3c.dom.NodeList;
 
 public class RestGetOperationTest extends JerseyTest {
 
+    static class NodeData {
+        Object key;
+        Object data; // List for a CompositeNode, value Object for a SimpleNode
+
+        NodeData(final Object key, final Object data) {
+            this.key = key;
+            this.data = data;
+        }
+    }
+
     private static BrokerFacade brokerFacade;
     private static RestconfImpl restconfImpl;
     private static SchemaContext schemaContextYangsIetf;
     private static SchemaContext schemaContextTestModule;
-    private static CompositeNode answerFromGet;
+    private static NormalizedNode answerFromGet;
+
+    private static SchemaContext schemaContextModules;
+    private static SchemaContext schemaContextBehindMountPoint;
+
+    private static final String RESTCONF_NS = "urn:ietf:params:xml:ns:yang:ietf-restconf";
 
     @BeforeClass
-    public static void init() throws FileNotFoundException {
+    public static void init() throws FileNotFoundException, ParseException {
         schemaContextYangsIetf = TestUtils.loadSchemaContext("/full-versions/yangs");
         schemaContextTestModule = TestUtils.loadSchemaContext("/full-versions/test-module");
         ControllerContext controllerContext = ControllerContext.getInstance();
@@ -57,127 +114,927 @@ public class RestGetOperationTest extends JerseyTest {
         restconfImpl = RestconfImpl.getInstance();
         restconfImpl.setBroker(brokerFacade);
         restconfImpl.setControllerContext(controllerContext);
-        answerFromGet = prepareCompositeNodeWithIetfInterfacesInterfacesData();
+        answerFromGet = TestUtils.prepareNormalizedNodeWithIetfInterfacesInterfacesData();
+
+        schemaContextModules = TestUtils.loadSchemaContext("/modules");
+        schemaContextBehindMountPoint = TestUtils.loadSchemaContext("/modules/modules-behind-mount-point");
     }
 
     @Override
     protected Application configure() {
         /* enable/disable Jersey logs to console */
-//        enable(TestProperties.LOG_TRAFFIC);
-//        enable(TestProperties.DUMP_ENTITY);
-//        enable(TestProperties.RECORD_LOG_LEVEL);
-//        set(TestProperties.RECORD_LOG_LEVEL, Level.ALL.intValue());
+        // enable(TestProperties.LOG_TRAFFIC);
+        // enable(TestProperties.DUMP_ENTITY);
+        // enable(TestProperties.RECORD_LOG_LEVEL);
+        // set(TestProperties.RECORD_LOG_LEVEL, Level.ALL.intValue());
         ResourceConfig resourceConfig = new ResourceConfig();
         resourceConfig = resourceConfig.registerInstances(restconfImpl, StructuredDataToXmlProvider.INSTANCE,
                 StructuredDataToJsonProvider.INSTANCE, XmlToCompositeNodeProvider.INSTANCE,
                 JsonToCompositeNodeProvider.INSTANCE);
+        resourceConfig.registerClasses(RestconfDocumentedExceptionMapper.class);
+        resourceConfig.registerClasses(new RestconfApplication().getClasses());
         return resourceConfig;
     }
 
     /**
-     * Tests of status codes for "/datastore/{identifier}".
+     * Tests of status codes for "/operational/{identifier}".
      */
     @Test
-    public void getDatastoreStatusCodes() throws FileNotFoundException, UnsupportedEncodingException {
+    public void getOperationalStatusCodes() throws UnsupportedEncodingException {
         mockReadOperationalDataMethod();
-        String uri = createUri("/datastore/", "ietf-interfaces:interfaces/interface/eth0");
+        String uri = "/operational/ietf-interfaces:interfaces/interface/eth0";
         assertEquals(200, get(uri, MediaType.APPLICATION_XML));
-        
-        uri = createUri("/datastore/", "wrong-module:interfaces/interface/eth0");
+
+        uri = "/operational/wrong-module:interfaces/interface/eth0";
         assertEquals(400, get(uri, MediaType.APPLICATION_XML));
-        
-        // Test of request for not existing data. Returning status code 404
-        uri = createUri("/datastore/", "ietf-interfaces:interfaces/interface/eth0");
-        when(brokerFacade.readOperationalData(any(InstanceIdentifier.class))).thenReturn(null);
-        assertEquals(404, get(uri, MediaType.APPLICATION_XML));
     }
 
     /**
-     * Tests of status codes for "/operational/{identifier}".
+     * Tests of status codes for "/config/{identifier}".
      */
     @Test
-    public void getOperationalStatusCodes() throws UnsupportedEncodingException {
-        mockReadOperationalDataMethod();
-        String uri = createUri("/operational/", "ietf-interfaces:interfaces/interface/eth0");
+    public void getConfigStatusCodes() throws UnsupportedEncodingException {
+        mockReadConfigurationDataMethod();
+        String uri = "/config/ietf-interfaces:interfaces/interface/eth0";
         assertEquals(200, get(uri, MediaType.APPLICATION_XML));
-        
-        uri = createUri("/operational/", "wrong-module:interfaces/interface/eth0");
+
+        uri = "/config/wrong-module:interfaces/interface/eth0";
         assertEquals(400, get(uri, MediaType.APPLICATION_XML));
     }
 
     /**
-     * Tests of status codes for "/config/{identifier}".
+     * MountPoint test. URI represents mount point.
      */
     @Test
-    public void getConfigStatusCodes() throws UnsupportedEncodingException {
-        mockReadConfigurationDataMethod();
-        String uri = createUri("/config/", "ietf-interfaces:interfaces/interface/eth0");
+    public void getDataWithUrlMountPoint() throws UnsupportedEncodingException, URISyntaxException, ParseException {
+        when(brokerFacade.readConfigurationData(any(DOMMountPoint.class), any(YangInstanceIdentifier.class))).thenReturn(
+                prepareCnDataForMountPointTest(false));
+        DOMMountPoint mountInstance = mock(DOMMountPoint.class);
+        when(mountInstance.getSchemaContext()).thenReturn(schemaContextTestModule);
+        DOMMountPointService mockMountService = mock(DOMMountPointService.class);
+        when(mockMountService.getMountPoint(any(YangInstanceIdentifier.class))).thenReturn(Optional.of(mountInstance));
+
+        ControllerContext.getInstance().setMountService(mockMountService);
+
+        String uri = "/config/ietf-interfaces:interfaces/interface/0/yang-ext:mount/test-module:cont/cont1";
+        assertEquals(200, get(uri, MediaType.APPLICATION_XML));
+
+        uri = "/config/ietf-interfaces:interfaces/yang-ext:mount/test-module:cont/cont1";
         assertEquals(200, get(uri, MediaType.APPLICATION_XML));
-        
-        uri = createUri("/config/", "wrong-module:interfaces/interface/eth0");
-        assertEquals(400, get(uri, MediaType.APPLICATION_XML));
     }
 
     /**
      * MountPoint test. URI represents mount point.
+     *
+     * Slashes in URI behind mount point. lst1 element with key GigabitEthernet0%2F0%2F0%2F0 (GigabitEthernet0/0/0/0) is
+     * requested via GET HTTP operation. It is tested whether %2F character is replaced with simple / in
+     * InstanceIdentifier parameter in method
+     * {@link BrokerFacade#readConfigurationDataBehindMountPoint(MountInstance, YangInstanceIdentifier)} which is called in
+     * method {@link RestconfImpl#readConfigurationData}
+     *
+     * @throws ParseException
      */
     @Test
-    public void getDataWithUrlMountPoint() throws UnsupportedEncodingException, URISyntaxException {
-        when(brokerFacade.readConfigurationDataBehindMountPoint(any(MountInstance.class),
-                        any(InstanceIdentifier.class))).thenReturn(prepareCnDataForMountPointTest());
-        MountInstance mountInstance = mock(MountInstance.class);
+    public void getDataWithSlashesBehindMountPoint() throws UnsupportedEncodingException, URISyntaxException,
+            ParseException {
+        YangInstanceIdentifier awaitedInstanceIdentifier = prepareInstanceIdentifierForList();
+        when(brokerFacade.readConfigurationData(any(DOMMountPoint.class), eq(awaitedInstanceIdentifier))).thenReturn(
+                prepareCnDataForSlashesBehindMountPointTest());
+        DOMMountPoint mountInstance = mock(DOMMountPoint.class);
+        when(mountInstance.getSchemaContext()).thenReturn(schemaContextTestModule);
+        DOMMountPointService mockMountService = mock(DOMMountPointService.class);
+        when(mockMountService.getMountPoint(any(YangInstanceIdentifier.class))).thenReturn(Optional.of(mountInstance));
+
+        ControllerContext.getInstance().setMountService(mockMountService);
+
+        String uri = "/config/ietf-interfaces:interfaces/interface/0/yang-ext:mount/test-module:cont/lst1/GigabitEthernet0%2F0%2F0%2F0";
+        assertEquals(200, get(uri, MediaType.APPLICATION_XML));
+    }
+
+    private YangInstanceIdentifier prepareInstanceIdentifierForList() throws URISyntaxException, ParseException {
+        List<PathArgument> parameters = new ArrayList<>();
+
+        Date revision = new SimpleDateFormat("yyyy-MM-dd").parse("2014-01-09");
+        URI uri = new URI("test:module");
+        QName qNameCont = QName.create(uri, revision, "cont");
+        QName qNameList = QName.create(uri, revision, "lst1");
+        QName qNameKeyList = QName.create(uri, revision, "lf11");
+
+        parameters.add(new YangInstanceIdentifier.NodeIdentifier(qNameCont));
+        parameters.add(new YangInstanceIdentifier.NodeIdentifier(qNameList));
+        parameters.add(new YangInstanceIdentifier.NodeIdentifierWithPredicates(qNameList, qNameKeyList,
+                "GigabitEthernet0/0/0/0"));
+        return YangInstanceIdentifier.create(parameters);
+    }
+
+    @Test
+    public void getDataMountPointIntoHighestElement() throws UnsupportedEncodingException, URISyntaxException,
+            ParseException {
+        when(brokerFacade.readConfigurationData(any(DOMMountPoint.class), any(YangInstanceIdentifier.class))).thenReturn(
+                prepareCnDataForMountPointTest(true));
+        DOMMountPoint mountInstance = mock(DOMMountPoint.class);
         when(mountInstance.getSchemaContext()).thenReturn(schemaContextTestModule);
-        MountService mockMountService = mock(MountService.class);
-        when(mockMountService.getMountPoint(any(InstanceIdentifier.class))).thenReturn(mountInstance);
+        DOMMountPointService mockMountService = mock(DOMMountPointService.class);
+        when(mockMountService.getMountPoint(any(YangInstanceIdentifier.class))).thenReturn(Optional.of(mountInstance));
 
         ControllerContext.getInstance().setMountService(mockMountService);
 
-        String uri = createUri("/config/",
-                "ietf-interfaces:interfaces/interface/0/yang-ext:mount/test-module:cont/cont1");
-        Response response = target(uri).request(Draft02.MediaTypes.DATA + XML).get();
+        String uri = "/config/ietf-interfaces:interfaces/interface/0/yang-ext:mount/test-module:cont";
+        assertEquals(200, get(uri, MediaType.APPLICATION_XML));
+    }
+
+    // /modules
+    @Test
+    public void getModulesTest() throws UnsupportedEncodingException, FileNotFoundException {
+        ControllerContext.getInstance().setGlobalSchema(schemaContextModules);
+
+        String uri = "/modules";
+
+        Response response = target(uri).request("application/yang.api+json").get();
+        validateModulesResponseJson(response);
+
+        response = target(uri).request("application/yang.api+xml").get();
+        validateModulesResponseXml(response,schemaContextModules);
+    }
+
+    // /streams/
+    @Test
+    public void getStreamsTest() throws UnsupportedEncodingException, FileNotFoundException {
+        ControllerContext.getInstance().setGlobalSchema(schemaContextModules);
+
+        String uri = "/streams";
+
+        Response response = target(uri).request("application/yang.api+json").get();
+        String responseBody = response.readEntity(String.class);
+        assertNotNull(responseBody);
+        assertTrue(responseBody.contains("streams"));
+
+        response = target(uri).request("application/yang.api+xml").get();
+        Document responseXmlBody = response.readEntity(Document.class);
+        assertNotNull(responseXmlBody);
+        Element rootNode = responseXmlBody.getDocumentElement();
+
+        assertEquals("streams", rootNode.getLocalName());
+        assertEquals(RESTCONF_NS, rootNode.getNamespaceURI());
+    }
+
+    // /modules/module
+    @Test
+    public void getModuleTest() throws FileNotFoundException, UnsupportedEncodingException {
+        ControllerContext.getInstance().setGlobalSchema(schemaContextModules);
+
+        String uri = "/modules/module/module2/2014-01-02";
+
+        Response response = target(uri).request("application/yang.api+xml").get();
+        assertEquals(200, response.getStatus());
+        Document responseXml = response.readEntity(Document.class);
+
+
+
+        QName qname = assertedModuleXmlToModuleQName(responseXml.getDocumentElement());
+        assertNotNull(qname);
+
+        assertEquals("module2", qname.getLocalName());
+        assertEquals("module:2", qname.getNamespace().toString());
+        assertEquals("2014-01-02", qname.getFormattedRevision());
+
+        response = target(uri).request("application/yang.api+json").get();
+        assertEquals(200, response.getStatus());
+        String responseBody = response.readEntity(String.class);
+        assertTrue("Module2 in json wasn't found", prepareJsonRegex("module2", "2014-01-02", "module:2", responseBody)
+                .find());
+        String[] split = responseBody.split("\"module\"");
+        assertEquals("\"module\" element is returned more then once", 2, split.length);
+
+    }
+
+    // /operations
+    @Test
+    public void getOperationsTest() throws FileNotFoundException, UnsupportedEncodingException {
+        ControllerContext.getInstance().setGlobalSchema(schemaContextModules);
+
+        String uri = "/operations";
+
+        Response response = target(uri).request("application/yang.api+xml").get();
+        assertEquals(200, response.getStatus());
+        Document responseDoc = response.readEntity(Document.class);
+        validateOperationsResponseXml(responseDoc, schemaContextModules);
+
+        response = target(uri).request("application/yang.api+json").get();
+        assertEquals(200, response.getStatus());
+        String responseBody = response.readEntity(String.class);
+        assertTrue("Json response for /operations dummy-rpc1-module1 is incorrect",
+                validateOperationsResponseJson(responseBody, "dummy-rpc1-module1", "module1").find());
+        assertTrue("Json response for /operations dummy-rpc2-module1 is incorrect",
+                validateOperationsResponseJson(responseBody, "dummy-rpc2-module1", "module1").find());
+        assertTrue("Json response for /operations dummy-rpc1-module2 is incorrect",
+                validateOperationsResponseJson(responseBody, "dummy-rpc1-module2", "module2").find());
+        assertTrue("Json response for /operations dummy-rpc2-module2 is incorrect",
+                validateOperationsResponseJson(responseBody, "dummy-rpc2-module2", "module2").find());
+
+    }
+
+    private void validateOperationsResponseXml(final Document responseDoc, final SchemaContext schemaContext) {
+        Element operationsElem = responseDoc.getDocumentElement();
+        assertEquals(RESTCONF_NS, operationsElem.getNamespaceURI());
+        assertEquals("operations", operationsElem.getLocalName());
+
+
+        HashSet<QName> foundOperations = new HashSet<>();
+
+        NodeList operationsList = operationsElem.getChildNodes();
+        for(int i = 0;i < operationsList.getLength();i++) {
+            org.w3c.dom.Node operation = operationsList.item(i);
+
+            String namespace = operation.getNamespaceURI();
+            String name = operation.getLocalName();
+            QName opQName = QName.create(URI.create(namespace), null, name);
+            foundOperations.add(opQName);
+        }
+
+        for(RpcDefinition schemaOp : schemaContext.getOperations()) {
+            assertTrue(foundOperations.contains(schemaOp.getQName().withoutRevision()));
+        }
+
+    }
+
+    // /operations/pathToMountPoint/yang-ext:mount
+    @Test
+    public void getOperationsBehindMountPointTest() throws FileNotFoundException, UnsupportedEncodingException {
+        ControllerContext controllerContext = ControllerContext.getInstance();
+        controllerContext.setGlobalSchema(schemaContextModules);
+
+        DOMMountPoint mountInstance = mock(DOMMountPoint.class);
+        when(mountInstance.getSchemaContext()).thenReturn(schemaContextBehindMountPoint);
+        DOMMountPointService mockMountService = mock(DOMMountPointService.class);
+        when(mockMountService.getMountPoint(any(YangInstanceIdentifier.class))).thenReturn(Optional.of(mountInstance));
+
+        controllerContext.setMountService(mockMountService);
+
+        String uri = "/operations/ietf-interfaces:interfaces/interface/0/yang-ext:mount/";
+
+        Response response = target(uri).request("application/yang.api+xml").get();
+        assertEquals(200, response.getStatus());
+
+        Document responseDoc = response.readEntity(Document.class);
+        validateOperationsResponseXml(responseDoc, schemaContextBehindMountPoint);
+
+        response = target(uri).request("application/yang.api+json").get();
+        assertEquals(200, response.getStatus());
+        String responseBody = response.readEntity(String.class);
+        assertTrue("Json response for /operations/mount_point rpc-behind-module1 is incorrect",
+                validateOperationsResponseJson(responseBody, "rpc-behind-module1", "module1-behind-mount-point").find());
+        assertTrue("Json response for /operations/mount_point rpc-behind-module2 is incorrect",
+                validateOperationsResponseJson(responseBody, "rpc-behind-module2", "module2-behind-mount-point").find());
+
+    }
+
+    private Matcher validateOperationsResponseJson(final String searchIn, final String rpcName, final String moduleName) {
+        StringBuilder regex = new StringBuilder();
+        regex.append("^");
+
+        regex.append(".*\\{");
+        regex.append(".*\"");
+
+        // operations prefix optional
+        regex.append("(");
+        regex.append("ietf-restconf:");
+        regex.append("|)");
+        // :operations prefix optional
+
+        regex.append("operations\"");
+        regex.append(".*:");
+        regex.append(".*\\{");
+
+        regex.append(".*\"" + moduleName);
+        regex.append(":");
+        regex.append(rpcName + "\"");
+        regex.append(".*\\[");
+        regex.append(".*null");
+        regex.append(".*\\]");
+
+        regex.append(".*\\}");
+        regex.append(".*\\}");
+
+        regex.append(".*");
+        regex.append("$");
+        Pattern ptrn = Pattern.compile(regex.toString(), Pattern.DOTALL);
+        return ptrn.matcher(searchIn);
+
+    }
+
+    private Matcher validateOperationsResponseXml(final String searchIn, final String rpcName, final String namespace) {
+        StringBuilder regex = new StringBuilder();
+
+        regex.append("^");
+
+        regex.append(".*<operations");
+        regex.append(".*xmlns=\"urn:ietf:params:xml:ns:yang:ietf-restconf\"");
+        regex.append(".*>");
+
+        regex.append(".*<");
+        regex.append(".*" + rpcName);
+        regex.append(".*" + namespace);
+        regex.append(".*/");
+        regex.append(".*>");
+
+        regex.append(".*</operations.*");
+        regex.append(".*>");
+
+        regex.append(".*");
+        regex.append("$");
+        Pattern ptrn = Pattern.compile(regex.toString(), Pattern.DOTALL);
+        return ptrn.matcher(searchIn);
+    }
+
+    // /restconf/modules/pathToMountPoint/yang-ext:mount
+    @Test
+    public void getModulesBehindMountPoint() throws FileNotFoundException, UnsupportedEncodingException {
+        ControllerContext controllerContext = ControllerContext.getInstance();
+        controllerContext.setGlobalSchema(schemaContextModules);
+
+        DOMMountPoint mountInstance = mock(DOMMountPoint.class);
+        when(mountInstance.getSchemaContext()).thenReturn(schemaContextBehindMountPoint);
+        DOMMountPointService mockMountService = mock(DOMMountPointService.class);
+        when(mockMountService.getMountPoint(any(YangInstanceIdentifier.class))).thenReturn(Optional.of(mountInstance));
+
+        controllerContext.setMountService(mockMountService);
+
+        String uri = "/modules/ietf-interfaces:interfaces/interface/0/yang-ext:mount/";
+
+        Response response = target(uri).request("application/yang.api+json").get();
+        assertEquals(200, response.getStatus());
+        String responseBody = response.readEntity(String.class);
+
+        assertTrue(
+                "module1-behind-mount-point in json wasn't found",
+                prepareJsonRegex("module1-behind-mount-point", "2014-02-03", "module:1:behind:mount:point",
+                        responseBody).find());
+        assertTrue(
+                "module2-behind-mount-point in json wasn't found",
+                prepareJsonRegex("module2-behind-mount-point", "2014-02-04", "module:2:behind:mount:point",
+                        responseBody).find());
+
+        response = target(uri).request("application/yang.api+xml").get();
+        assertEquals(200, response.getStatus());
+        validateModulesResponseXml(response, schemaContextBehindMountPoint);
+
+    }
+
+    // /restconf/modules/module/pathToMountPoint/yang-ext:mount/moduleName/revision
+    @Test
+    public void getModuleBehindMountPoint() throws FileNotFoundException, UnsupportedEncodingException {
+        ControllerContext controllerContext = ControllerContext.getInstance();
+        controllerContext.setGlobalSchema(schemaContextModules);
+
+        DOMMountPoint mountInstance = mock(DOMMountPoint.class);
+        when(mountInstance.getSchemaContext()).thenReturn(schemaContextBehindMountPoint);
+        DOMMountPointService mockMountService = mock(DOMMountPointService.class);
+        when(mockMountService.getMountPoint(any(YangInstanceIdentifier.class))).thenReturn(Optional.of(mountInstance));
+
+        controllerContext.setMountService(mockMountService);
+
+        String uri = "/modules/module/ietf-interfaces:interfaces/interface/0/yang-ext:mount/module1-behind-mount-point/2014-02-03";
+
+        Response response = target(uri).request("application/yang.api+json").get();
+        assertEquals(200, response.getStatus());
+        String responseBody = response.readEntity(String.class);
+
+        assertTrue(
+                "module1-behind-mount-point in json wasn't found",
+                prepareJsonRegex("module1-behind-mount-point", "2014-02-03", "module:1:behind:mount:point",
+                        responseBody).find());
+        String[] split = responseBody.split("\"module\"");
+        assertEquals("\"module\" element is returned more then once", 2, split.length);
+
+        response = target(uri).request("application/yang.api+xml").get();
         assertEquals(200, response.getStatus());
-        
-        uri = createUri("/config/",
-                "ietf-interfaces:interfaces/yang-ext:mount/test-module:cont/cont1");
-        response = target(uri).request(Draft02.MediaTypes.DATA + XML).get();
+        Document responseXml = response.readEntity(Document.class);
+
+        QName module = assertedModuleXmlToModuleQName(responseXml.getDocumentElement());
+
+        assertEquals("module1-behind-mount-point", module.getLocalName());
+        assertEquals("2014-02-03", module.getFormattedRevision());
+        assertEquals("module:1:behind:mount:point", module.getNamespace().toString());
+
+
+    }
+
+    private void validateModulesResponseXml(final Response response, final SchemaContext schemaContext) {
         assertEquals(200, response.getStatus());
+        Document responseBody = response.readEntity(Document.class);
+        NodeList moduleNodes = responseBody.getDocumentElement().getElementsByTagNameNS(RESTCONF_NS, "module");
+
+        assertTrue(moduleNodes.getLength() > 0);
+
+        HashSet<QName> foundModules = new HashSet<>();
+
+        for(int i=0;i < moduleNodes.getLength();i++) {
+            org.w3c.dom.Node module = moduleNodes.item(i);
+
+            QName name = assertedModuleXmlToModuleQName(module);
+            foundModules.add(name);
+        }
+
+        assertAllModules(foundModules,schemaContext);
+    }
+
+    private void assertAllModules(final Set<QName> foundModules, final SchemaContext schemaContext) {
+        for(Module module : schemaContext.getModules()) {
+            QName current = QName.create(module.getQNameModule(),module.getName());
+            assertTrue("Module not found in response.",foundModules.contains(current));
+        }
+
+    }
+
+    private QName assertedModuleXmlToModuleQName(final org.w3c.dom.Node module) {
+        assertEquals("module", module.getLocalName());
+        assertEquals(RESTCONF_NS, module.getNamespaceURI());
+        String revision = null;
+        String namespace = null;
+        String name = null;
+
+
+        NodeList childNodes = module.getChildNodes();
+
+        for(int i =0;i < childNodes.getLength(); i++) {
+            org.w3c.dom.Node child = childNodes.item(i);
+            assertEquals(RESTCONF_NS, child.getNamespaceURI());
+
+            switch(child.getLocalName()) {
+                case "name":
+                    assertNull("Name element appeared multiple times",name);
+                    name = child.getTextContent().trim();
+                    break;
+                case "revision":
+                    assertNull("Revision element appeared multiple times",revision);
+                    revision = child.getTextContent().trim();
+                    break;
+
+                case "namespace":
+                    assertNull("Namespace element appeared multiple times",namespace);
+                    namespace = child.getTextContent().trim();
+                    break;
+            }
+        }
+
+        assertNotNull("Revision was not part of xml",revision);
+        assertNotNull("Module namespace was not part of xml",namespace);
+        assertNotNull("Module identiffier was not part of xml",name);
+
+
+        // TODO Auto-generated method stub
+
+        return QName.create(namespace,revision,name);
+    }
+
+    private void validateModulesResponseJson(final Response response) {
+        assertEquals(200, response.getStatus());
+        String responseBody = response.readEntity(String.class);
+
+        assertTrue("Module1 in json wasn't found", prepareJsonRegex("module1", "2014-01-01", "module:1", responseBody)
+                .find());
+        assertTrue("Module2 in json wasn't found", prepareJsonRegex("module2", "2014-01-02", "module:2", responseBody)
+                .find());
+        assertTrue("Module3 in json wasn't found", prepareJsonRegex("module3", "2014-01-03", "module:3", responseBody)
+                .find());
+    }
+
+    private Matcher prepareJsonRegex(final String module, final String revision, final String namespace,
+            final String searchIn) {
+        StringBuilder regex = new StringBuilder();
+        regex.append("^");
+
+        regex.append(".*\\{");
+        regex.append(".*\"name\"");
+        regex.append(".*:");
+        regex.append(".*\"" + module + "\",");
+
+        regex.append(".*\"revision\"");
+        regex.append(".*:");
+        regex.append(".*\"" + revision + "\",");
+
+        regex.append(".*\"namespace\"");
+        regex.append(".*:");
+        regex.append(".*\"" + namespace + "\"");
+
+        regex.append(".*\\}");
+
+        regex.append(".*");
+        regex.append("$");
+        Pattern ptrn = Pattern.compile(regex.toString(), Pattern.DOTALL);
+        return ptrn.matcher(searchIn);
+
+    }
+
+
+    private void prepareMockForModulesTest(final ControllerContext mockedControllerContext)
+            throws FileNotFoundException {
+        SchemaContext schemaContext = TestUtils.loadSchemaContext("/modules");
+        mockedControllerContext.setGlobalSchema(schemaContext);
+        // when(mockedControllerContext.getGlobalSchema()).thenReturn(schemaContext);
     }
-    
-    private int get(String uri, String mediaType) {
+
+    private int get(final String uri, final String mediaType) {
         return target(uri).request(mediaType).get().getStatus();
     }
 
-    private CompositeNode prepareCnDataForMountPointTest() throws URISyntaxException {
-        CompositeNodeWrapper cont1 = new CompositeNodeWrapper(new URI("test:module"), "cont1");
-        SimpleNodeWrapper lf11 = new SimpleNodeWrapper(new URI("test:module"), "lf11", "lf11 value");
-        cont1.addValue(lf11);
-        return cont1.unwrap();
+    /**
+    container cont {
+        container cont1 {
+            leaf lf11 {
+                type string;
+            }
+    */
+    private NormalizedNode prepareCnDataForMountPointTest(boolean wrapToCont) throws URISyntaxException, ParseException {
+        String testModuleDate = "2014-01-09";
+        ContainerNode contChild = Builders
+                .containerBuilder()
+                .withNodeIdentifier(TestUtils.getNodeIdentifier("cont1", "test:module", testModuleDate))
+                .withChild(
+                        Builders.leafBuilder()
+                                .withNodeIdentifier(TestUtils.getNodeIdentifier("lf11", "test:module", testModuleDate))
+                                .withValue("lf11 value").build()).build();
+
+        if (wrapToCont) {
+            return Builders.containerBuilder()
+                    .withNodeIdentifier(TestUtils.getNodeIdentifier("cont", "test:module", testModuleDate))
+                    .withChild(contChild).build();
+        }
+        return contChild;
+
     }
 
     private void mockReadOperationalDataMethod() {
-        when(brokerFacade.readOperationalData(any(InstanceIdentifier.class))).thenReturn(answerFromGet);
+        when(brokerFacade.readOperationalData(any(YangInstanceIdentifier.class))).thenReturn(answerFromGet);
     }
 
     private void mockReadConfigurationDataMethod() {
-        when(brokerFacade.readConfigurationData(any(InstanceIdentifier.class))).thenReturn(answerFromGet);
+        when(brokerFacade.readConfigurationData(any(YangInstanceIdentifier.class))).thenReturn(answerFromGet);
+    }
+
+    private NormalizedNode prepareCnDataForSlashesBehindMountPointTest() throws ParseException {
+        return ImmutableMapEntryNodeBuilder
+                .create()
+                .withNodeIdentifier(
+                        TestUtils.getNodeIdentifierPredicate("lst1", "test:module", "2014-01-09", "lf11",
+                                "GigabitEthernet0/0/0/0"))
+                .withChild(
+                        ImmutableLeafNodeBuilder.create()
+                                .withNodeIdentifier(TestUtils.getNodeIdentifier("lf11", "test:module", "2014-01-09"))
+                                .withValue("GigabitEthernet0/0/0/0").build()).build();
+
+    }
+
+    /**
+     * If includeWhiteChars URI parameter is set to false then no white characters can be included in returned output
+     *
+     * @throws UnsupportedEncodingException
+     */
+    @Test
+    public void getDataWithUriIncludeWhiteCharsParameterTest() throws UnsupportedEncodingException {
+        getDataWithUriIncludeWhiteCharsParameter("config");
+        getDataWithUriIncludeWhiteCharsParameter("operational");
+    }
+
+    private void getDataWithUriIncludeWhiteCharsParameter(final String target) throws UnsupportedEncodingException {
+        mockReadConfigurationDataMethod();
+        mockReadOperationalDataMethod();
+        String uri = "/" + target + "/ietf-interfaces:interfaces/interface/eth0";
+        Response response = target(uri).queryParam("prettyPrint", "false").request("application/xml").get();
+        String xmlData = response.readEntity(String.class);
+
+        Pattern pattern = Pattern.compile(".*(>\\s+|\\s+<).*", Pattern.DOTALL);
+        Matcher matcher = pattern.matcher(xmlData);
+        // XML element can't surrounded with white character (e.g ">    " or
+        // "    <")
+        assertFalse(matcher.matches());
+
+        response = target(uri).queryParam("prettyPrint", "false").request("application/json").get();
+        String jsonData = response.readEntity(String.class);
+        pattern = Pattern.compile(".*(\\}\\s+|\\s+\\{|\\]\\s+|\\s+\\[|\\s+:|:\\s+).*", Pattern.DOTALL);
+        matcher = pattern.matcher(jsonData);
+        // JSON element can't surrounded with white character (e.g "} ", " {",
+        // "] ", " [", " :" or ": ")
+        assertFalse(matcher.matches());
+    }
+
+    @Test
+    @Ignore
+    public void getDataWithUriDepthParameterTest() throws UnsupportedEncodingException {
+
+        ControllerContext.getInstance().setGlobalSchema(schemaContextModules);
+
+        CompositeNode depth1Cont = toCompositeNode(toCompositeNodeData(
+                toNestedQName("depth1-cont"),
+                toCompositeNodeData(
+                        toNestedQName("depth2-cont1"),
+                        toCompositeNodeData(
+                                toNestedQName("depth3-cont1"),
+                                toCompositeNodeData(toNestedQName("depth4-cont1"),
+                                        toSimpleNodeData(toNestedQName("depth5-leaf1"), "depth5-leaf1-value")),
+                                toSimpleNodeData(toNestedQName("depth4-leaf1"), "depth4-leaf1-value")),
+                        toSimpleNodeData(toNestedQName("depth3-leaf1"), "depth3-leaf1-value")),
+                toCompositeNodeData(
+                        toNestedQName("depth2-cont2"),
+                        toCompositeNodeData(
+                                toNestedQName("depth3-cont2"),
+                                toCompositeNodeData(toNestedQName("depth4-cont2"),
+                                        toSimpleNodeData(toNestedQName("depth5-leaf2"), "depth5-leaf2-value")),
+                                toSimpleNodeData(toNestedQName("depth4-leaf2"), "depth4-leaf2-value")),
+                        toSimpleNodeData(toNestedQName("depth3-leaf2"), "depth3-leaf2-value")),
+                toSimpleNodeData(toNestedQName("depth2-leaf1"), "depth2-leaf1-value")));
+
+        Module module = TestUtils.findModule(schemaContextModules.getModules(), "nested-module");
+        assertNotNull(module);
+
+        DataSchemaNode dataSchemaNode = TestUtils.resolveDataSchemaNode("depth1-cont", module);
+        assertNotNull(dataSchemaNode);
+
+        when(brokerFacade.readConfigurationData(any(YangInstanceIdentifier.class))).thenReturn(
+                TestUtils.compositeNodeToDatastoreNormalizedNode(depth1Cont, dataSchemaNode));
+
+        // Test config with depth 1
+
+        Response response = target("/config/nested-module:depth1-cont").queryParam("depth", "1")
+                .request("application/xml").get();
+
+        verifyXMLResponse(response, expectEmptyContainer("depth1-cont"));
+
+        // Test config with depth 2
+
+        response = target("/config/nested-module:depth1-cont").queryParam("depth", "2").request("application/xml")
+                .get();
+
+        // String
+        // xml="<depth1-cont><depth2-cont1/><depth2-cont2/><depth2-leaf1>depth2-leaf1-value</depth2-leaf1></depth1-cont>";
+        // Response mr=mock(Response.class);
+        // when(mr.getEntity()).thenReturn( new
+        // java.io.StringBufferInputStream(xml) );
+
+        verifyXMLResponse(
+                response,
+                expectContainer("depth1-cont", expectEmptyContainer("depth2-cont1"),
+                        expectEmptyContainer("depth2-cont2"), expectLeaf("depth2-leaf1", "depth2-leaf1-value")));
+
+        // Test config with depth 3
+
+        response = target("/config/nested-module:depth1-cont").queryParam("depth", "3").request("application/xml")
+                .get();
+
+        verifyXMLResponse(
+                response,
+                expectContainer(
+                        "depth1-cont",
+                        expectContainer("depth2-cont1", expectEmptyContainer("depth3-cont1"),
+                                expectLeaf("depth3-leaf1", "depth3-leaf1-value")),
+                        expectContainer("depth2-cont2", expectEmptyContainer("depth3-cont2"),
+                                expectLeaf("depth3-leaf2", "depth3-leaf2-value")),
+                        expectLeaf("depth2-leaf1", "depth2-leaf1-value")));
+
+        // Test config with depth 4
+
+        response = target("/config/nested-module:depth1-cont").queryParam("depth", "4").request("application/xml")
+                .get();
+
+        verifyXMLResponse(
+                response,
+                expectContainer(
+                        "depth1-cont",
+                        expectContainer(
+                                "depth2-cont1",
+                                expectContainer("depth3-cont1", expectEmptyContainer("depth4-cont1"),
+                                        expectLeaf("depth4-leaf1", "depth4-leaf1-value")),
+                                expectLeaf("depth3-leaf1", "depth3-leaf1-value")),
+                        expectContainer(
+                                "depth2-cont2",
+                                expectContainer("depth3-cont2", expectEmptyContainer("depth4-cont2"),
+                                        expectLeaf("depth4-leaf2", "depth4-leaf2-value")),
+                                expectLeaf("depth3-leaf2", "depth3-leaf2-value")),
+                        expectLeaf("depth2-leaf1", "depth2-leaf1-value")));
+
+        // Test config with depth 5
+
+        response = target("/config/nested-module:depth1-cont").queryParam("depth", "5").request("application/xml")
+                .get();
+
+        verifyXMLResponse(
+                response,
+                expectContainer(
+                        "depth1-cont",
+                        expectContainer(
+                                "depth2-cont1",
+                                expectContainer(
+                                        "depth3-cont1",
+                                        expectContainer("depth4-cont1",
+                                                expectLeaf("depth5-leaf1", "depth5-leaf1-value")),
+                                        expectLeaf("depth4-leaf1", "depth4-leaf1-value")),
+                                expectLeaf("depth3-leaf1", "depth3-leaf1-value")),
+                        expectContainer(
+                                "depth2-cont2",
+                                expectContainer(
+                                        "depth3-cont2",
+                                        expectContainer("depth4-cont2",
+                                                expectLeaf("depth5-leaf2", "depth5-leaf2-value")),
+                                        expectLeaf("depth4-leaf2", "depth4-leaf2-value")),
+                                expectLeaf("depth3-leaf2", "depth3-leaf2-value")),
+                        expectLeaf("depth2-leaf1", "depth2-leaf1-value")));
+
+        // Test config with depth unbounded
+
+        response = target("/config/nested-module:depth1-cont").queryParam("depth", "unbounded")
+                .request("application/xml").get();
+
+        verifyXMLResponse(
+                response,
+                expectContainer(
+                        "depth1-cont",
+                        expectContainer(
+                                "depth2-cont1",
+                                expectContainer(
+                                        "depth3-cont1",
+                                        expectContainer("depth4-cont1",
+                                                expectLeaf("depth5-leaf1", "depth5-leaf1-value")),
+                                        expectLeaf("depth4-leaf1", "depth4-leaf1-value")),
+                                expectLeaf("depth3-leaf1", "depth3-leaf1-value")),
+                        expectContainer(
+                                "depth2-cont2",
+                                expectContainer(
+                                        "depth3-cont2",
+                                        expectContainer("depth4-cont2",
+                                                expectLeaf("depth5-leaf2", "depth5-leaf2-value")),
+                                        expectLeaf("depth4-leaf2", "depth4-leaf2-value")),
+                                expectLeaf("depth3-leaf2", "depth3-leaf2-value")),
+                        expectLeaf("depth2-leaf1", "depth2-leaf1-value")));
+
+        // Test operational
+
+        CompositeNode depth2Cont1 = toCompositeNode(toCompositeNodeData(
+                toNestedQName("depth2-cont1"),
+                toCompositeNodeData(
+                        toNestedQName("depth3-cont1"),
+                        toCompositeNodeData(toNestedQName("depth4-cont1"),
+                                toSimpleNodeData(toNestedQName("depth5-leaf1"), "depth5-leaf1-value")),
+                        toSimpleNodeData(toNestedQName("depth4-leaf1"), "depth4-leaf1-value")),
+                toSimpleNodeData(toNestedQName("depth3-leaf1"), "depth3-leaf1-value")));
+
+        assertTrue(dataSchemaNode instanceof DataNodeContainer);
+        DataSchemaNode depth2cont1Schema = null;
+        for (DataSchemaNode childNode : ((DataNodeContainer) dataSchemaNode).getChildNodes()) {
+            if (childNode.getQName().getLocalName().equals("depth2-cont1")) {
+                depth2cont1Schema = childNode;
+                break;
+            }
+        }
+        assertNotNull(depth2Cont1);
+
+        when(brokerFacade.readOperationalData(any(YangInstanceIdentifier.class))).thenReturn(
+                TestUtils.compositeNodeToDatastoreNormalizedNode(depth2Cont1, depth2cont1Schema));
+
+        response = target("/operational/nested-module:depth1-cont/depth2-cont1").queryParam("depth", "3")
+                .request("application/xml").get();
+
+        verifyXMLResponse(
+                response,
+                expectContainer(
+                        "depth2-cont1",
+                        expectContainer("depth3-cont1", expectEmptyContainer("depth4-cont1"),
+                                expectLeaf("depth4-leaf1", "depth4-leaf1-value")),
+                        expectLeaf("depth3-leaf1", "depth3-leaf1-value")));
+    }
+
+    /**
+     * Tests behavior when invalid value of depth URI parameter
+     */
+    @Test
+    @Ignore
+    public void getDataWithInvalidDepthParameterTest() {
+
+        ControllerContext.getInstance().setGlobalSchema(schemaContextModules);
+
+        final MultivaluedMap<String, String> paramMap = new MultivaluedHashMap<>();
+        paramMap.putSingle("depth", "1o");
+        UriInfo mockInfo = mock(UriInfo.class);
+        when(mockInfo.getQueryParameters(false)).thenAnswer(new Answer<MultivaluedMap<String, String>>() {
+            @Override
+            public MultivaluedMap<String, String> answer(InvocationOnMock invocation) {
+                return paramMap;
+            }
+        });
+
+        getDataWithInvalidDepthParameterTest(mockInfo);
+
+        paramMap.putSingle("depth", "0");
+        getDataWithInvalidDepthParameterTest(mockInfo);
+
+        paramMap.putSingle("depth", "-1");
+        getDataWithInvalidDepthParameterTest(mockInfo);
     }
 
-    private static CompositeNode prepareCompositeNodeWithIetfInterfacesInterfacesData() {
-        CompositeNode intface;
+    private void getDataWithInvalidDepthParameterTest(final UriInfo uriInfo) {
         try {
-            intface = new CompositeNodeWrapper(new URI("interface"), "interface");
-            List<Node<?>> childs = new ArrayList<>();
-
-            childs.add(new SimpleNodeWrapper(new URI("name"), "name", "eth0"));
-            childs.add(new SimpleNodeWrapper(new URI("type"), "type", "ethernetCsmacd"));
-            childs.add(new SimpleNodeWrapper(new URI("enabled"), "enabled", Boolean.FALSE));
-            childs.add(new SimpleNodeWrapper(new URI("description"), "description", "some interface"));
-            intface.setValue(childs);
-            return intface;
-        } catch (URISyntaxException e) {
+            QName qNameDepth1Cont = QName.create("urn:nested:module", "2014-06-3", "depth1-cont");
+            YangInstanceIdentifier ii = YangInstanceIdentifier.builder().node(qNameDepth1Cont).build();
+            NormalizedNode value = (Builders.containerBuilder().withNodeIdentifier(new NodeIdentifier(qNameDepth1Cont)).build());
+            when(brokerFacade.readConfigurationData(eq(ii))).thenReturn(value);
+            restconfImpl.readConfigurationData("nested-module:depth1-cont", uriInfo);
+            fail("Expected RestconfDocumentedException");
+        } catch (RestconfDocumentedException e) {
+            assertTrue("Unexpected error message: " + e.getErrors().get(0).getErrorMessage(), e.getErrors().get(0)
+                    .getErrorMessage().contains("depth"));
+        }
+    }
+
+    private void verifyXMLResponse(final Response response, final NodeData nodeData) {
+        Document doc = response.readEntity(Document.class);
+//        Document doc = TestUtils.loadDocumentFrom((InputStream) response.getEntity());
+//        System.out.println();
+        assertNotNull("Could not parse XML document", doc);
+
+        // System.out.println(TestUtils.getDocumentInPrintableForm( doc ));
+
+        verifyContainerElement(doc.getDocumentElement(), nodeData);
+    }
+
+    @SuppressWarnings("unchecked")
+    private void verifyContainerElement(final Element element, final NodeData nodeData) {
+
+        assertEquals("Element local name", nodeData.key, element.getLocalName());
+
+        NodeList childNodes = element.getChildNodes();
+        if (nodeData.data == null) { // empty container
+            assertTrue("Expected no child elements for \"" + element.getLocalName() + "\"", childNodes.getLength() == 0);
+            return;
         }
 
-        return null;
+        Map<String, NodeData> expChildMap = Maps.newHashMap();
+        for (NodeData expChild : (List<NodeData>) nodeData.data) {
+            expChildMap.put(expChild.key.toString(), expChild);
+        }
+
+        for (int i = 0; i < childNodes.getLength(); i++) {
+            org.w3c.dom.Node actualChild = childNodes.item(i);
+            if (!(actualChild instanceof Element)) {
+                continue;
+            }
+
+            Element actualElement = (Element) actualChild;
+            NodeData expChild = expChildMap.remove(actualElement.getLocalName());
+            assertNotNull(
+                    "Unexpected child element for parent \"" + element.getLocalName() + "\": "
+                            + actualElement.getLocalName(), expChild);
+
+            if (expChild.data == null || expChild.data instanceof List) {
+                verifyContainerElement(actualElement, expChild);
+            } else {
+                assertEquals("Text content for element: " + actualElement.getLocalName(), expChild.data,
+                        actualElement.getTextContent());
+            }
+        }
+
+        if (!expChildMap.isEmpty()) {
+            fail("Missing elements for parent \"" + element.getLocalName() + "\": " + expChildMap.keySet());
+        }
+    }
+
+    private NodeData expectContainer(final String name, final NodeData... childData) {
+        return new NodeData(name, Lists.newArrayList(childData));
+    }
+
+    private NodeData expectEmptyContainer(final String name) {
+        return new NodeData(name, null);
+    }
+
+    private NodeData expectLeaf(final String name, final Object value) {
+        return new NodeData(name, value);
+    }
+
+    private QName toNestedQName(final String localName) {
+        return QName.create("urn:nested:module", "2014-06-3", localName);
+    }
+
+    @SuppressWarnings("unchecked")
+    private CompositeNode toCompositeNode(final NodeData nodeData) {
+        CompositeNodeBuilder<ImmutableCompositeNode> builder = ImmutableCompositeNode.builder();
+        builder.setQName((QName) nodeData.key);
+
+        for (NodeData child : (List<NodeData>) nodeData.data) {
+            if (child.data instanceof List) {
+                builder.add(toCompositeNode(child));
+            } else {
+                builder.addLeaf((QName) child.key, child.data);
+            }
+        }
+
+        return builder.toInstance();
+    }
+
+    private NodeData toCompositeNodeData(final QName key, final NodeData... childData) {
+        return new NodeData(key, Lists.newArrayList(childData));
+    }
+
+    private NodeData toSimpleNodeData(final QName key, final Object value) {
+        return new NodeData(key, value);
     }
 
 }