restconf/sal-rest-connector/src/test/java/org/opendaylight/controller/sal/restconf/impl/test/BrokerFacadeTest.java

   1 /*
   2  * Copyright (c) 2014, 2015 Brocade Communications Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.sal.restconf.impl.test;
  10
  11 import static org.junit.Assert.assertEquals;
  12 import static org.junit.Assert.assertFalse;
  13 import static org.junit.Assert.assertNotNull;
  14 import static org.junit.Assert.assertSame;
  15 import static org.junit.Assert.assertTrue;
  16 import static org.junit.Assert.fail;
  17 import static org.mockito.Matchers.any;
  18 import static org.mockito.Matchers.eq;
  19 import static org.mockito.Mockito.doReturn;
  20 import static org.mockito.Mockito.inOrder;
  21 import static org.mockito.Mockito.mock;
  22 import static org.mockito.Mockito.times;
  23 import static org.mockito.Mockito.verify;
  24 import static org.mockito.Mockito.verifyNoMoreInteractions;
  25 import static org.mockito.Mockito.when;
  26
  27 import com.google.common.base.Optional;
  28 import com.google.common.collect.Lists;
  29 import com.google.common.util.concurrent.CheckedFuture;
  30 import com.google.common.util.concurrent.Futures;
  31 import java.util.concurrent.Future;
  32 import org.junit.Before;
  33 import org.junit.Test;
  34 import org.mockito.InOrder;
  35 import org.mockito.Mock;
  36 import org.mockito.Mockito;
  37 import org.mockito.MockitoAnnotations;
  38 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
  39 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  40 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  41 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  42 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  43 import org.opendaylight.controller.md.sal.dom.api.DOMDataChangeListener;
  44 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
  45 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
  46 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  47 import org.opendaylight.controller.md.sal.dom.api.DOMMountPoint;
  48 import org.opendaylight.controller.md.sal.dom.api.DOMNotificationService;
  49 import org.opendaylight.controller.md.sal.dom.api.DOMRpcException;
  50 import org.opendaylight.controller.md.sal.dom.api.DOMRpcResult;
  51 import org.opendaylight.controller.md.sal.dom.api.DOMRpcService;
  52 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
  53 import org.opendaylight.controller.sal.core.api.Broker.ConsumerSession;
  54 import org.opendaylight.netconf.sal.restconf.impl.BrokerFacade;
  55 import org.opendaylight.netconf.sal.restconf.impl.ControllerContext;
  56 import org.opendaylight.netconf.sal.restconf.impl.InstanceIdentifierContext;
  57 import org.opendaylight.netconf.sal.restconf.impl.PATCHContext;
  58 import org.opendaylight.netconf.sal.restconf.impl.PATCHStatusContext;
  59 import org.opendaylight.netconf.sal.restconf.impl.PutResult;
  60 import org.opendaylight.netconf.sal.restconf.impl.RestconfDocumentedException;
  61 import org.opendaylight.netconf.sal.restconf.impl.RestconfError;
  62 import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorTag;
  63 import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorType;
  64 import org.opendaylight.netconf.sal.streams.listeners.ListenerAdapter;
  65 import org.opendaylight.netconf.sal.streams.listeners.NotificationListenerAdapter;
  66 import org.opendaylight.netconf.sal.streams.listeners.Notificator;
  67 import org.opendaylight.restconf.handlers.SchemaContextHandler;
  68 import org.opendaylight.restconf.handlers.TransactionChainHandler;
  69 import org.opendaylight.yang.gen.v1.urn.sal.restconf.event.subscription.rev140708.NotificationOutputTypeGrouping.NotificationOutputType;
  70 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  71 import org.opendaylight.yangtools.yang.common.QName;
  72 import org.opendaylight.yangtools.yang.common.RpcError;
  73 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  74 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  75 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  76 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  77 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
  78 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  79 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  80
  81 /**
  82  * Unit tests for BrokerFacade.
  83  *
  84  * @author Thomas Pantelis
  85  */
  86 public class BrokerFacadeTest {
  87
  88     @Mock
  89     private DOMDataBroker domDataBroker;
  90     @Mock
  91     private DOMNotificationService domNotification;
  92     @Mock
  93     private ConsumerSession context;
  94     @Mock
  95     private DOMRpcService mockRpcService;
  96     @Mock
  97     private DOMMountPoint mockMountInstance;
  98     @Mock
  99     private DOMDataReadOnlyTransaction rTransaction;
 100     @Mock
 101     private DOMDataWriteTransaction wTransaction;
 102     @Mock
 103     private DOMDataReadWriteTransaction rwTransaction;
 104
 105     private final BrokerFacade brokerFacade = BrokerFacade.getInstance();
 106     private final NormalizedNode<?, ?> dummyNode = createDummyNode("test:module", "2014-01-09", "interfaces");
 107     private final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> dummyNodeInFuture =
 108             wrapDummyNode(this.dummyNode);
 109     private final QName qname = TestUtils.buildQName("interfaces","test:module", "2014-01-09");
 110     private final SchemaPath type = SchemaPath.create(true, this.qname);
 111     private final YangInstanceIdentifier instanceID = YangInstanceIdentifier.builder().node(this.qname).build();
 112
 113     @Before
 114     public void setUp() throws Exception {
 115         MockitoAnnotations.initMocks(this);
 116         this.brokerFacade.setDomDataBroker(this.domDataBroker);
 117         this.brokerFacade.setDomNotificationService(this.domNotification);
 118         this.brokerFacade.setRpcService(this.mockRpcService);
 119         this.brokerFacade.setContext(this.context);
 120         when(this.domDataBroker.newReadOnlyTransaction()).thenReturn(this.rTransaction);
 121         when(this.domDataBroker.newWriteOnlyTransaction()).thenReturn(this.wTransaction);
 122         when(this.domDataBroker.newReadWriteTransaction()).thenReturn(this.rwTransaction);
 123
 124         ControllerContext.getInstance().setSchemas(TestUtils.loadSchemaContext("/full-versions/test-module"));
 125     }
 126
 127     private static CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> wrapDummyNode(
 128             final NormalizedNode<?, ?> dummyNode) {
 129         return Futures.immediateCheckedFuture(Optional.<NormalizedNode<?, ?>> of(dummyNode));
 130     }
 131
 132     private static CheckedFuture<Boolean, ReadFailedException> wrapExistence(final Boolean exists) {
 133         return Futures.immediateCheckedFuture(exists);
 134     }
 135
 136     /**
 137      * Value of this node shouldn't be important for testing purposes
 138      */
 139     private static NormalizedNode<?, ?> createDummyNode(final String namespace, final String date,
 140             final String localName) {
 141         return Builders.containerBuilder()
 142                 .withNodeIdentifier(new NodeIdentifier(QName.create(namespace, date, localName))).build();
 143     }
 144
 145     @Test
 146     public void testReadConfigurationData() {
 147         when(this.rTransaction.read(any(LogicalDatastoreType.class), any(YangInstanceIdentifier.class))).thenReturn(
 148                 this.dummyNodeInFuture);
 149
 150         final NormalizedNode<?, ?> actualNode = this.brokerFacade.readConfigurationData(this.instanceID);
 151
 152         assertSame("readConfigurationData", this.dummyNode, actualNode);
 153     }
 154
 155     @Test
 156     public void testReadOperationalData() {
 157         when(this.rTransaction.read(any(LogicalDatastoreType.class), any(YangInstanceIdentifier.class))).thenReturn(
 158                 this.dummyNodeInFuture);
 159
 160         final NormalizedNode<?, ?> actualNode = this.brokerFacade.readOperationalData(this.instanceID);
 161
 162         assertSame("readOperationalData", this.dummyNode, actualNode);
 163     }
 164
 165     @Test(expected = RestconfDocumentedException.class)
 166     public void testReadOperationalDataWithNoDataBroker() {
 167         this.brokerFacade.setDomDataBroker(null);
 168
 169         this.brokerFacade.readOperationalData(this.instanceID);
 170     }
 171
 172     @Test
 173     public void test503() throws Exception {
 174         final RpcError error = RpcResultBuilder.newError(
 175                 RpcError.ErrorType.TRANSPORT,
 176                 ErrorTag.RESOURCE_DENIED.getTagValue(),
 177                 "Master is down. Please try again.");
 178         final ReadFailedException exception503 = new ReadFailedException("Read from transaction failed", error);
 179         doReturn(Futures.immediateFailedCheckedFuture(exception503))
 180                 .when(rTransaction).read(any(LogicalDatastoreType.class), any(YangInstanceIdentifier.class));
 181         try {
 182             brokerFacade.readConfigurationData(this.instanceID, "explicit");
 183             fail("This test should fail.");
 184         } catch (final RestconfDocumentedException e) {
 185             assertEquals("getErrorTag", ErrorTag.RESOURCE_DENIED_TRANSPORT, e.getErrors().get(0).getErrorTag());
 186             assertEquals("getErrorType", ErrorType.TRANSPORT, e.getErrors().get(0).getErrorType());
 187             assertEquals("getErrorMessage", "Master is down. Please try again.", e.getErrors().get(0).getErrorMessage());
 188         }
 189     }
 190
 191     @Test
 192     public void testInvokeRpc() throws Exception {
 193         final DOMRpcResult expResult = mock(DOMRpcResult.class);
 194         final CheckedFuture<DOMRpcResult, DOMRpcException> future = Futures.immediateCheckedFuture(expResult);
 195         when(this.mockRpcService.invokeRpc(this.type, this.dummyNode)).thenReturn(future);
 196
 197         final CheckedFuture<DOMRpcResult, DOMRpcException> actualFuture = this.brokerFacade
 198                 .invokeRpc(this.type, this.dummyNode);
 199         assertNotNull("Future is null", actualFuture);
 200         final DOMRpcResult actualResult = actualFuture.get();
 201         assertSame("invokeRpc", expResult, actualResult);
 202     }
 203
 204     @Test(expected = RestconfDocumentedException.class)
 205     public void testInvokeRpcWithNoConsumerSession() {
 206         this.brokerFacade.setContext(null);
 207         this.brokerFacade.invokeRpc(this.type, this.dummyNode);
 208     }
 209
 210     @Test
 211     public void testCommitConfigurationDataPut() throws Exception {
 212         @SuppressWarnings("unchecked")
 213         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = mock(CheckedFuture.class);
 214         when(this.rwTransaction.submit()).thenReturn(expFuture);
 215
 216         final Optional<NormalizedNode<?, ?>> optionalMock = mock(Optional.class);
 217         when(optionalMock.get()).thenReturn(null);
 218
 219         final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> readFuture = Futures
 220                 .immediateCheckedFuture(optionalMock);
 221         when(this.rwTransaction.read(LogicalDatastoreType.CONFIGURATION, this.instanceID)).thenReturn(readFuture);
 222
 223         final PutResult result = this.brokerFacade.commitConfigurationDataPut(mock(SchemaContext.class),
 224                 this.instanceID, this.dummyNode, null, null);
 225
 226         final Future<Void> actualFuture = result.getFutureOfPutData();
 227
 228         assertSame("commitConfigurationDataPut", expFuture, actualFuture);
 229
 230         final InOrder inOrder = inOrder(this.domDataBroker, this.rwTransaction);
 231         inOrder.verify(this.domDataBroker).newReadWriteTransaction();
 232         inOrder.verify(this.rwTransaction).put(LogicalDatastoreType.CONFIGURATION, this.instanceID, this.dummyNode);
 233         inOrder.verify(this.rwTransaction).submit();
 234     }
 235
 236     @Test
 237     public void testCommitConfigurationDataPost() {
 238         @SuppressWarnings("unchecked")
 239         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = mock(CheckedFuture.class);
 240
 241         when(this.rwTransaction.exists(LogicalDatastoreType.CONFIGURATION, this.instanceID))
 242                 .thenReturn(wrapExistence(false));
 243
 244         when(this.rwTransaction.submit()).thenReturn(expFuture);
 245
 246         final CheckedFuture<Void, TransactionCommitFailedException> actualFuture = this.brokerFacade
 247                 .commitConfigurationDataPost(mock(SchemaContext.class), this.instanceID, this.dummyNode, null, null);
 248
 249         assertSame("commitConfigurationDataPost", expFuture, actualFuture);
 250
 251         final InOrder inOrder = inOrder(this.domDataBroker, this.rwTransaction);
 252         inOrder.verify(this.domDataBroker).newReadWriteTransaction();
 253         inOrder.verify(this.rwTransaction).exists(LogicalDatastoreType.CONFIGURATION, this.instanceID);
 254         inOrder.verify(this.rwTransaction).put(LogicalDatastoreType.CONFIGURATION, this.instanceID, this.dummyNode);
 255         inOrder.verify(this.rwTransaction).submit();
 256     }
 257
 258     @Test(expected = RestconfDocumentedException.class)
 259     public void testCommitConfigurationDataPostAlreadyExists() {
 260         final CheckedFuture<Boolean, ReadFailedException> successFuture = Futures.immediateCheckedFuture(Boolean.TRUE);
 261         when(this.rwTransaction.exists(eq(LogicalDatastoreType.CONFIGURATION), any(YangInstanceIdentifier.class)))
 262                 .thenReturn(successFuture);
 263         try {
 264             // Schema context is only necessary for ensuring parent structure
 265             this.brokerFacade.commitConfigurationDataPost((SchemaContext) null, this.instanceID, this.dummyNode, null,
 266                     null);
 267         } catch (final RestconfDocumentedException e) {
 268             assertEquals("getErrorTag", RestconfError.ErrorTag.DATA_EXISTS, e.getErrors().get(0).getErrorTag());
 269             throw e;
 270         }
 271     }
 272
 273     /**
 274      * Positive test of delete operation when data to delete exits. Returned value and order of steps are validated.
 275      */
 276     @Test
 277     public void testCommitConfigurationDataDelete() throws Exception {
 278         // assume that data to delete exists
 279         prepareDataForDelete(true);
 280
 281         // expected result
 282         @SuppressWarnings("unchecked")
 283         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = mock(CheckedFuture.class);
 284         when(this.rwTransaction.submit()).thenReturn(expFuture);
 285
 286         // test
 287         final CheckedFuture<Void, TransactionCommitFailedException> actualFuture = this.brokerFacade
 288                 .commitConfigurationDataDelete(this.instanceID);
 289
 290         // verify result and interactions
 291         assertSame("commitConfigurationDataDelete", expFuture, actualFuture);
 292
 293         // check exists, delete, submit
 294         final InOrder inOrder = inOrder(this.domDataBroker, this.rwTransaction);
 295         inOrder.verify(this.rwTransaction).exists(LogicalDatastoreType.CONFIGURATION, this.instanceID);
 296         inOrder.verify(this.rwTransaction).delete(LogicalDatastoreType.CONFIGURATION, this.instanceID);
 297         inOrder.verify(this.rwTransaction).submit();
 298     }
 299
 300     /**
 301      * Negative test of delete operation when data to delete does not exist. Error 404 should be returned.
 302      */
 303     @Test
 304     public void testCommitConfigurationDataDeleteNoData() throws Exception {
 305         // assume that data to delete does not exist
 306         prepareDataForDelete(false);
 307
 308         // try to delete and expect 404 error
 309         try {
 310             this.brokerFacade.commitConfigurationDataDelete(this.instanceID);
 311             fail("Delete operation should fail due to missing data");
 312         } catch (final RestconfDocumentedException e) {
 313             assertEquals(ErrorType.PROTOCOL, e.getErrors().get(0).getErrorType());
 314             assertEquals(ErrorTag.DATA_MISSING, e.getErrors().get(0).getErrorTag());
 315             assertEquals(404, e.getErrors().get(0).getErrorTag().getStatusCode());
 316         }
 317     }
 318
 319     /**
 320      * Prepare conditions to test delete operation. Data to delete exists or does not exist according to value of
 321      * {@code assumeDataExists} parameter.
 322      * @param assumeDataExists
 323      */
 324     private void prepareDataForDelete(final boolean assumeDataExists) {
 325         when(this.rwTransaction.exists(LogicalDatastoreType.CONFIGURATION, this.instanceID))
 326                 .thenReturn(Futures.immediateCheckedFuture(new Boolean(assumeDataExists)));
 327     }
 328
 329     @Test
 330     public void testRegisterToListenDataChanges() {
 331         final ListenerAdapter listener = Notificator.createListener(this.instanceID, "stream",
 332                 NotificationOutputType.XML);
 333
 334         @SuppressWarnings("unchecked")
 335         final ListenerRegistration<DOMDataChangeListener> mockRegistration = mock(ListenerRegistration.class);
 336
 337         when(this.domDataBroker.registerDataChangeListener(any(LogicalDatastoreType.class), eq(this.instanceID),
 338                 eq(listener), eq(DataChangeScope.BASE))).thenReturn(mockRegistration);
 339
 340         this.brokerFacade.registerToListenDataChanges(
 341                 LogicalDatastoreType.CONFIGURATION, DataChangeScope.BASE, listener);
 342
 343         verify(this.domDataBroker).registerDataChangeListener(
 344                 LogicalDatastoreType.CONFIGURATION, this.instanceID, listener, DataChangeScope.BASE);
 345
 346         assertEquals("isListening", true, listener.isListening());
 347
 348         this.brokerFacade.registerToListenDataChanges(
 349                 LogicalDatastoreType.CONFIGURATION, DataChangeScope.BASE, listener);
 350         verifyNoMoreInteractions(this.domDataBroker);
 351     }
 352
 353     /**
 354      * Create, register, close and remove notification listener.
 355      */
 356     @Test
 357     public void testRegisterToListenNotificationChanges() throws Exception {
 358         // create test notification listener
 359         final String identifier = "create-notification-stream/toaster:toastDone";
 360         final SchemaPath path = SchemaPath.create(true,
 361                 QName.create("http://netconfcentral.org/ns/toaster", "2009-11-20", "toastDone"));
 362         Notificator.createNotificationListener(Lists.newArrayList(path), identifier, "XML");
 363         final NotificationListenerAdapter listener = Notificator.getNotificationListenerFor(identifier).get(0);
 364
 365         // mock registration
 366         final ListenerRegistration<NotificationListenerAdapter> registration = mock(ListenerRegistration.class);
 367         when(this.domNotification.registerNotificationListener(listener, listener.getSchemaPath()))
 368                 .thenReturn(registration);
 369
 370         // test to register listener for the first time
 371         this.brokerFacade.registerToListenNotification(listener);
 372         assertEquals("Registration was not successful", true, listener.isListening());
 373
 374         // try to register for the second time
 375         this.brokerFacade.registerToListenNotification(listener);
 376         assertEquals("Registration was not successful", true, listener.isListening());
 377
 378         // registrations should be invoked only once
 379         verify(this.domNotification, times(1)).registerNotificationListener(listener, listener.getSchemaPath());
 380
 381         final DOMTransactionChain transactionChain = mock(DOMTransactionChain.class);
 382         final DOMDataWriteTransaction wTx = mock(DOMDataWriteTransaction.class);
 383         final CheckedFuture checked = Futures.immediateCheckedFuture("");
 384         when(wTx.submit()).thenReturn(checked);
 385         when(transactionChain.newWriteOnlyTransaction()).thenReturn(wTx);
 386         final TransactionChainHandler transactionChainHandler = new TransactionChainHandler(transactionChain);
 387         final SchemaContextHandler schemaHandler = Mockito.mock(SchemaContextHandler.class);
 388         final SchemaContext schCtx = TestUtils.loadSchemaContext("/modules");
 389         when(schemaHandler.get()).thenReturn(schCtx);
 390         listener.setCloseVars(transactionChainHandler, schemaHandler);
 391         // close and remove test notification listener
 392         listener.close();
 393         Notificator.removeListenerIfNoSubscriberExists(listener);
 394     }
 395
 396     /**
 397      * Test PATCH method on the server with no data
 398      */
 399     @Test
 400     @SuppressWarnings("unchecked")
 401     public void testPatchConfigurationDataWithinTransactionServer() throws Exception {
 402         final PATCHContext patchContext = mock(PATCHContext.class);
 403         final InstanceIdentifierContext identifierContext = mock(InstanceIdentifierContext.class);
 404         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = Futures.immediateCheckedFuture(null);
 405
 406         when(patchContext.getData()).thenReturn(Lists.newArrayList());
 407         when(patchContext.getInstanceIdentifierContext()).thenReturn(identifierContext);
 408
 409         // no mount point
 410         when(identifierContext.getMountPoint()).thenReturn(null);
 411
 412         when(this.rwTransaction.submit()).thenReturn(expFuture);
 413
 414         final PATCHStatusContext status = this.brokerFacade.patchConfigurationDataWithinTransaction(patchContext);
 415
 416         // assert success
 417         assertTrue("PATCH operation should be successful on server", status.isOk());
 418     }
 419
 420     /**
 421      * Test PATCH method on mounted device with no data
 422      */
 423     @Test
 424     @SuppressWarnings("unchecked")
 425     public void testPatchConfigurationDataWithinTransactionMount() throws Exception {
 426         final PATCHContext patchContext = mock(PATCHContext.class);
 427         final InstanceIdentifierContext identifierContext = mock(InstanceIdentifierContext.class);
 428         final DOMMountPoint mountPoint = mock(DOMMountPoint.class);
 429         final DOMDataBroker mountDataBroker = mock(DOMDataBroker.class);
 430         final DOMDataReadWriteTransaction transaction = mock(DOMDataReadWriteTransaction.class);
 431         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = Futures.immediateCheckedFuture(null);
 432
 433         when(patchContext.getData()).thenReturn(Lists.newArrayList());
 434         when(patchContext.getInstanceIdentifierContext()).thenReturn(identifierContext);
 435
 436         // return mount point with broker
 437         when(identifierContext.getMountPoint()).thenReturn(mountPoint);
 438         when(mountPoint.getService(DOMDataBroker.class)).thenReturn(Optional.of(mountDataBroker));
 439         when(mountDataBroker.newReadWriteTransaction()).thenReturn(transaction);
 440         when(transaction.submit()).thenReturn(expFuture);
 441
 442         final PATCHStatusContext status = this.brokerFacade.patchConfigurationDataWithinTransaction(patchContext);
 443
 444         // assert success
 445         assertTrue("PATCH operation should be successful on mounted device", status.isOk());
 446     }
 447
 448     /**
 449      * Negative test for PATCH operation when mounted device does not support {@link DOMDataBroker service.
 450      * PATCH operation should fail with global error.
 451      */
 452     @Test
 453     @SuppressWarnings("unchecked")
 454     public void testPatchConfigurationDataWithinTransactionMountFail() throws Exception {
 455         final PATCHContext patchContext = mock(PATCHContext.class);
 456         final InstanceIdentifierContext identifierContext = mock(InstanceIdentifierContext.class);
 457         final DOMMountPoint mountPoint = mock(DOMMountPoint.class);
 458         final DOMDataBroker mountDataBroker = mock(DOMDataBroker.class);
 459         final DOMDataReadWriteTransaction transaction = mock(DOMDataReadWriteTransaction.class);
 460         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = Futures.immediateCheckedFuture(null);
 461
 462         when(patchContext.getData()).thenReturn(Lists.newArrayList());
 463         when(patchContext.getInstanceIdentifierContext()).thenReturn(identifierContext);
 464         when(identifierContext.getMountPoint()).thenReturn(mountPoint);
 465
 466         // missing broker on mounted device
 467         when(mountPoint.getService(DOMDataBroker.class)).thenReturn(Optional.absent());
 468
 469         when(mountDataBroker.newReadWriteTransaction()).thenReturn(transaction);
 470         when(transaction.submit()).thenReturn(expFuture);
 471
 472         final PATCHStatusContext status = this.brokerFacade.patchConfigurationDataWithinTransaction(patchContext);
 473
 474         // assert not successful operation with error
 475         assertNotNull(status.getGlobalErrors());
 476         assertEquals(1, status.getGlobalErrors().size());
 477         assertEquals(ErrorType.APPLICATION, status.getGlobalErrors().get(0).getErrorType());
 478         assertEquals(ErrorTag.OPERATION_FAILED, status.getGlobalErrors().get(0).getErrorTag());
 479
 480         assertFalse("PATCH operation should fail on mounted device without Broker", status.isOk());
 481     }
 482 }