restconf/restconf-nb-bierman02/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.MockitoAnnotations;
  37 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
  38 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  39 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  40 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  41 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  42 import org.opendaylight.controller.md.sal.dom.api.DOMDataChangeListener;
  43 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
  44 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
  45 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  46 import org.opendaylight.controller.md.sal.dom.api.DOMMountPoint;
  47 import org.opendaylight.controller.md.sal.dom.api.DOMNotificationService;
  48 import org.opendaylight.controller.md.sal.dom.api.DOMRpcException;
  49 import org.opendaylight.controller.md.sal.dom.api.DOMRpcResult;
  50 import org.opendaylight.controller.md.sal.dom.api.DOMRpcService;
  51 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
  52 import org.opendaylight.netconf.sal.restconf.impl.BrokerFacade;
  53 import org.opendaylight.netconf.sal.restconf.impl.ControllerContext;
  54 import org.opendaylight.netconf.sal.restconf.impl.PutResult;
  55 import org.opendaylight.netconf.sal.streams.listeners.ListenerAdapter;
  56 import org.opendaylight.netconf.sal.streams.listeners.NotificationListenerAdapter;
  57 import org.opendaylight.netconf.sal.streams.listeners.Notificator;
  58 import org.opendaylight.restconf.common.context.InstanceIdentifierContext;
  59 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
  60 import org.opendaylight.restconf.common.errors.RestconfError;
  61 import org.opendaylight.restconf.common.errors.RestconfError.ErrorTag;
  62 import org.opendaylight.restconf.common.errors.RestconfError.ErrorType;
  63 import org.opendaylight.restconf.common.patch.PatchContext;
  64 import org.opendaylight.restconf.common.patch.PatchStatusContext;
  65 import org.opendaylight.yang.gen.v1.urn.sal.restconf.event.subscription.rev140708.NotificationOutputTypeGrouping.NotificationOutputType;
  66 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  67 import org.opendaylight.yangtools.yang.common.QName;
  68 import org.opendaylight.yangtools.yang.common.RpcError;
  69 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  70 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  71 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  72 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  73 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
  74 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  75 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  76
  77 /**
  78  * Unit tests for BrokerFacade.
  79  *
  80  * @author Thomas Pantelis
  81  */
  82 public class BrokerFacadeTest {
  83
  84     @Mock
  85     private DOMDataBroker domDataBroker;
  86     @Mock
  87     private DOMNotificationService domNotification;
  88     @Mock
  89     private DOMRpcService mockRpcService;
  90     @Mock
  91     private DOMMountPoint mockMountInstance;
  92     @Mock
  93     private DOMDataReadOnlyTransaction readTransaction;
  94     @Mock
  95     private DOMDataWriteTransaction writeTransaction;
  96     @Mock
  97     private DOMDataReadWriteTransaction rwTransaction;
  98
  99     private final BrokerFacade brokerFacade = BrokerFacade.getInstance();
 100     private final NormalizedNode<?, ?> dummyNode = createDummyNode("test:module", "2014-01-09", "interfaces");
 101     private final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> dummyNodeInFuture =
 102             wrapDummyNode(this.dummyNode);
 103     private final QName qname = TestUtils.buildQName("interfaces","test:module", "2014-01-09");
 104     private final SchemaPath type = SchemaPath.create(true, this.qname);
 105     private final YangInstanceIdentifier instanceID = YangInstanceIdentifier.builder().node(this.qname).build();
 106
 107     @Before
 108     public void setUp() throws Exception {
 109         MockitoAnnotations.initMocks(this);
 110         this.brokerFacade.setDomDataBroker(this.domDataBroker);
 111         this.brokerFacade.setDomNotificationService(this.domNotification);
 112         this.brokerFacade.setRpcService(this.mockRpcService);
 113         when(this.domDataBroker.newReadOnlyTransaction()).thenReturn(this.readTransaction);
 114         when(this.domDataBroker.newWriteOnlyTransaction()).thenReturn(this.writeTransaction);
 115         when(this.domDataBroker.newReadWriteTransaction()).thenReturn(this.rwTransaction);
 116
 117         ControllerContext.getInstance()
 118                 .setSchemas(TestUtils.loadSchemaContext("/full-versions/test-module", "/modules"));
 119     }
 120
 121     private static CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> wrapDummyNode(
 122             final NormalizedNode<?, ?> dummyNode) {
 123         return Futures.immediateCheckedFuture(Optional.<NormalizedNode<?, ?>>of(dummyNode));
 124     }
 125
 126     private static CheckedFuture<Boolean, ReadFailedException> wrapExistence(final Boolean exists) {
 127         return Futures.immediateCheckedFuture(exists);
 128     }
 129
 130     /**
 131      * Value of this node shouldn't be important for testing purposes.
 132      */
 133     private static NormalizedNode<?, ?> createDummyNode(final String namespace, final String date,
 134             final String localName) {
 135         return Builders.containerBuilder()
 136                 .withNodeIdentifier(new NodeIdentifier(QName.create(namespace, date, localName))).build();
 137     }
 138
 139     @Test
 140     public void testReadConfigurationData() {
 141         when(this.readTransaction.read(any(LogicalDatastoreType.class), any(YangInstanceIdentifier.class))).thenReturn(
 142                 this.dummyNodeInFuture);
 143
 144         final NormalizedNode<?, ?> actualNode = this.brokerFacade.readConfigurationData(this.instanceID);
 145
 146         assertSame("readConfigurationData", this.dummyNode, actualNode);
 147     }
 148
 149     @Test
 150     public void testReadOperationalData() {
 151         when(this.readTransaction.read(any(LogicalDatastoreType.class), any(YangInstanceIdentifier.class))).thenReturn(
 152                 this.dummyNodeInFuture);
 153
 154         final NormalizedNode<?, ?> actualNode = this.brokerFacade.readOperationalData(this.instanceID);
 155
 156         assertSame("readOperationalData", this.dummyNode, actualNode);
 157     }
 158
 159     @Test(expected = RestconfDocumentedException.class)
 160     public void testReadOperationalDataWithNoDataBroker() {
 161         this.brokerFacade.setDomDataBroker(null);
 162
 163         this.brokerFacade.readOperationalData(this.instanceID);
 164     }
 165
 166     @Test
 167     public void test503() throws Exception {
 168         final RpcError error = RpcResultBuilder.newError(
 169                 RpcError.ErrorType.TRANSPORT,
 170                 ErrorTag.RESOURCE_DENIED.getTagValue(),
 171                 "Master is down. Please try again.");
 172         final ReadFailedException exception503 = new ReadFailedException("Read from transaction failed", error);
 173         doReturn(Futures.immediateFailedCheckedFuture(exception503))
 174                 .when(readTransaction).read(any(LogicalDatastoreType.class), any(YangInstanceIdentifier.class));
 175         try {
 176             brokerFacade.readConfigurationData(this.instanceID, "explicit");
 177             fail("This test should fail.");
 178         } catch (final RestconfDocumentedException e) {
 179             assertEquals("getErrorTag", ErrorTag.RESOURCE_DENIED_TRANSPORT, e.getErrors().get(0).getErrorTag());
 180             assertEquals("getErrorType", ErrorType.TRANSPORT, e.getErrors().get(0).getErrorType());
 181             assertEquals("getErrorMessage", "Master is down. Please try again.",
 182                     e.getErrors().get(0).getErrorMessage());
 183         }
 184     }
 185
 186     @Test
 187     public void testInvokeRpc() throws Exception {
 188         final DOMRpcResult expResult = mock(DOMRpcResult.class);
 189         final CheckedFuture<DOMRpcResult, DOMRpcException> future = Futures.immediateCheckedFuture(expResult);
 190         when(this.mockRpcService.invokeRpc(this.type, this.dummyNode)).thenReturn(future);
 191
 192         final CheckedFuture<DOMRpcResult, DOMRpcException> actualFuture = this.brokerFacade
 193                 .invokeRpc(this.type, this.dummyNode);
 194         assertNotNull("Future is null", actualFuture);
 195         final DOMRpcResult actualResult = actualFuture.get();
 196         assertSame("invokeRpc", expResult, actualResult);
 197     }
 198
 199     @Test(expected = RestconfDocumentedException.class)
 200     public void testInvokeRpcWithNoConsumerSession() {
 201         brokerFacade.setDomDataBroker(null);
 202         this.brokerFacade.invokeRpc(this.type, this.dummyNode);
 203     }
 204
 205     @Test
 206     public void testCommitConfigurationDataPut() throws Exception {
 207         @SuppressWarnings("unchecked")
 208         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = mock(CheckedFuture.class);
 209         when(this.rwTransaction.submit()).thenReturn(expFuture);
 210
 211         final Optional<NormalizedNode<?, ?>> optionalMock = mock(Optional.class);
 212         when(optionalMock.get()).thenReturn(null);
 213
 214         final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> readFuture = Futures
 215                 .immediateCheckedFuture(optionalMock);
 216         when(this.rwTransaction.read(LogicalDatastoreType.CONFIGURATION, this.instanceID)).thenReturn(readFuture);
 217
 218         final PutResult result = this.brokerFacade.commitConfigurationDataPut(mock(SchemaContext.class),
 219                 this.instanceID, this.dummyNode, null, null);
 220
 221         final Future<Void> actualFuture = result.getFutureOfPutData();
 222
 223         assertSame("commitConfigurationDataPut", expFuture, actualFuture);
 224
 225         final InOrder inOrder = inOrder(this.domDataBroker, this.rwTransaction);
 226         inOrder.verify(this.domDataBroker).newReadWriteTransaction();
 227         inOrder.verify(this.rwTransaction).put(LogicalDatastoreType.CONFIGURATION, this.instanceID, this.dummyNode);
 228         inOrder.verify(this.rwTransaction).submit();
 229     }
 230
 231     @Test
 232     public void testCommitConfigurationDataPost() {
 233         @SuppressWarnings("unchecked")
 234         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = mock(CheckedFuture.class);
 235
 236         when(this.rwTransaction.exists(LogicalDatastoreType.CONFIGURATION, this.instanceID))
 237                 .thenReturn(wrapExistence(false));
 238
 239         when(this.rwTransaction.submit()).thenReturn(expFuture);
 240
 241         final CheckedFuture<Void, TransactionCommitFailedException> actualFuture = this.brokerFacade
 242                 .commitConfigurationDataPost(mock(SchemaContext.class), this.instanceID, this.dummyNode, null, null);
 243
 244         assertSame("commitConfigurationDataPost", expFuture, actualFuture);
 245
 246         final InOrder inOrder = inOrder(this.domDataBroker, this.rwTransaction);
 247         inOrder.verify(this.domDataBroker).newReadWriteTransaction();
 248         inOrder.verify(this.rwTransaction).exists(LogicalDatastoreType.CONFIGURATION, this.instanceID);
 249         inOrder.verify(this.rwTransaction).put(LogicalDatastoreType.CONFIGURATION, this.instanceID, this.dummyNode);
 250         inOrder.verify(this.rwTransaction).submit();
 251     }
 252
 253     @Test(expected = RestconfDocumentedException.class)
 254     public void testCommitConfigurationDataPostAlreadyExists() {
 255         final CheckedFuture<Boolean, ReadFailedException> successFuture = Futures.immediateCheckedFuture(Boolean.TRUE);
 256         when(this.rwTransaction.exists(eq(LogicalDatastoreType.CONFIGURATION), any(YangInstanceIdentifier.class)))
 257                 .thenReturn(successFuture);
 258         try {
 259             // Schema context is only necessary for ensuring parent structure
 260             this.brokerFacade.commitConfigurationDataPost((SchemaContext) null, this.instanceID, this.dummyNode, null,
 261                     null);
 262         } catch (final RestconfDocumentedException e) {
 263             assertEquals("getErrorTag", RestconfError.ErrorTag.DATA_EXISTS, e.getErrors().get(0).getErrorTag());
 264             throw e;
 265         }
 266     }
 267
 268     /**
 269      * Positive test of delete operation when data to delete exits. Returned value and order of steps are validated.
 270      */
 271     @Test
 272     public void testCommitConfigurationDataDelete() throws Exception {
 273         // assume that data to delete exists
 274         prepareDataForDelete(true);
 275
 276         // expected result
 277         @SuppressWarnings("unchecked")
 278         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = mock(CheckedFuture.class);
 279         when(this.rwTransaction.submit()).thenReturn(expFuture);
 280
 281         // test
 282         final CheckedFuture<Void, TransactionCommitFailedException> actualFuture = this.brokerFacade
 283                 .commitConfigurationDataDelete(this.instanceID);
 284
 285         // verify result and interactions
 286         assertSame("commitConfigurationDataDelete", expFuture, actualFuture);
 287
 288         // check exists, delete, submit
 289         final InOrder inOrder = inOrder(this.domDataBroker, this.rwTransaction);
 290         inOrder.verify(this.rwTransaction).exists(LogicalDatastoreType.CONFIGURATION, this.instanceID);
 291         inOrder.verify(this.rwTransaction).delete(LogicalDatastoreType.CONFIGURATION, this.instanceID);
 292         inOrder.verify(this.rwTransaction).submit();
 293     }
 294
 295     /**
 296      * Negative test of delete operation when data to delete does not exist. Error 404 should be returned.
 297      */
 298     @Test
 299     public void testCommitConfigurationDataDeleteNoData() throws Exception {
 300         // assume that data to delete does not exist
 301         prepareDataForDelete(false);
 302
 303         // try to delete and expect 404 error
 304         try {
 305             this.brokerFacade.commitConfigurationDataDelete(this.instanceID);
 306             fail("Delete operation should fail due to missing data");
 307         } catch (final RestconfDocumentedException e) {
 308             assertEquals(ErrorType.PROTOCOL, e.getErrors().get(0).getErrorType());
 309             assertEquals(ErrorTag.DATA_MISSING, e.getErrors().get(0).getErrorTag());
 310             assertEquals(404, e.getErrors().get(0).getErrorTag().getStatusCode());
 311         }
 312     }
 313
 314     /**
 315      * Prepare conditions to test delete operation. Data to delete exists or does not exist according to value of
 316      * {@code assumeDataExists} parameter.
 317      * @param assumeDataExists boolean to assume if data exists
 318      */
 319     private void prepareDataForDelete(final boolean assumeDataExists) {
 320         when(this.rwTransaction.exists(LogicalDatastoreType.CONFIGURATION, this.instanceID))
 321                 .thenReturn(Futures.immediateCheckedFuture(new Boolean(assumeDataExists)));
 322     }
 323
 324     @Test
 325     public void testRegisterToListenDataChanges() {
 326         final ListenerAdapter listener = Notificator.createListener(this.instanceID, "stream",
 327                 NotificationOutputType.XML);
 328
 329         @SuppressWarnings("unchecked")
 330         final ListenerRegistration<DOMDataChangeListener> mockRegistration = mock(ListenerRegistration.class);
 331
 332         when(this.domDataBroker.registerDataChangeListener(any(LogicalDatastoreType.class), eq(this.instanceID),
 333                 eq(listener), eq(DataChangeScope.BASE))).thenReturn(mockRegistration);
 334
 335         this.brokerFacade.registerToListenDataChanges(
 336                 LogicalDatastoreType.CONFIGURATION, DataChangeScope.BASE, listener);
 337
 338         verify(this.domDataBroker).registerDataChangeListener(
 339                 LogicalDatastoreType.CONFIGURATION, this.instanceID, listener, DataChangeScope.BASE);
 340
 341         assertEquals("isListening", true, listener.isListening());
 342
 343         this.brokerFacade.registerToListenDataChanges(
 344                 LogicalDatastoreType.CONFIGURATION, DataChangeScope.BASE, listener);
 345         verifyNoMoreInteractions(this.domDataBroker);
 346     }
 347
 348     /**
 349      * Create, register, close and remove notification listener.
 350      */
 351     @Test
 352     public void testRegisterToListenNotificationChanges() throws Exception {
 353         // create test notification listener
 354         final String identifier = "create-notification-stream/toaster:toastDone";
 355         final SchemaPath path = SchemaPath.create(true,
 356                 QName.create("http://netconfcentral.org/ns/toaster", "2009-11-20", "toastDone"));
 357         Notificator.createNotificationListener(Lists.newArrayList(path), identifier, "XML");
 358         final NotificationListenerAdapter listener = Notificator.getNotificationListenerFor(identifier).get(0);
 359
 360         // mock registration
 361         final ListenerRegistration<NotificationListenerAdapter> registration = mock(ListenerRegistration.class);
 362         when(this.domNotification.registerNotificationListener(listener, listener.getSchemaPath()))
 363                 .thenReturn(registration);
 364
 365         // test to register listener for the first time
 366         this.brokerFacade.registerToListenNotification(listener);
 367         assertEquals("Registration was not successful", true, listener.isListening());
 368
 369         // try to register for the second time
 370         this.brokerFacade.registerToListenNotification(listener);
 371         assertEquals("Registration was not successful", true, listener.isListening());
 372
 373         // registrations should be invoked only once
 374         verify(this.domNotification, times(1)).registerNotificationListener(listener, listener.getSchemaPath());
 375
 376         final DOMTransactionChain transactionChain = mock(DOMTransactionChain.class);
 377         final DOMDataWriteTransaction wTx = mock(DOMDataWriteTransaction.class);
 378         final CheckedFuture<Void, TransactionCommitFailedException> checked = Futures.immediateCheckedFuture(null);
 379         when(wTx.submit()).thenReturn(checked);
 380         when(transactionChain.newWriteOnlyTransaction()).thenReturn(wTx);
 381         // close and remove test notification listener
 382         listener.close();
 383         Notificator.removeListenerIfNoSubscriberExists(listener);
 384     }
 385
 386     /**
 387      * Test Patch method on the server with no data.
 388      */
 389     @Test
 390     @SuppressWarnings("unchecked")
 391     public void testPatchConfigurationDataWithinTransactionServer() throws Exception {
 392         final PatchContext patchContext = mock(PatchContext.class);
 393         final InstanceIdentifierContext identifierContext = mock(InstanceIdentifierContext.class);
 394         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = Futures.immediateCheckedFuture(null);
 395
 396         when(patchContext.getData()).thenReturn(Lists.newArrayList());
 397         when(patchContext.getInstanceIdentifierContext()).thenReturn(identifierContext);
 398
 399         // no mount point
 400         when(identifierContext.getMountPoint()).thenReturn(null);
 401
 402         when(this.rwTransaction.submit()).thenReturn(expFuture);
 403
 404         final PatchStatusContext status = this.brokerFacade.patchConfigurationDataWithinTransaction(patchContext);
 405
 406         // assert success
 407         assertTrue("Patch operation should be successful on server", status.isOk());
 408     }
 409
 410     /**
 411      * Test Patch method on mounted device with no data.
 412      */
 413     @Test
 414     @SuppressWarnings("unchecked")
 415     public void testPatchConfigurationDataWithinTransactionMount() throws Exception {
 416         final PatchContext patchContext = mock(PatchContext.class);
 417         final InstanceIdentifierContext identifierContext = mock(InstanceIdentifierContext.class);
 418         final DOMMountPoint mountPoint = mock(DOMMountPoint.class);
 419         final DOMDataBroker mountDataBroker = mock(DOMDataBroker.class);
 420         final DOMDataReadWriteTransaction transaction = mock(DOMDataReadWriteTransaction.class);
 421         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = Futures.immediateCheckedFuture(null);
 422
 423         when(patchContext.getData()).thenReturn(Lists.newArrayList());
 424         when(patchContext.getInstanceIdentifierContext()).thenReturn(identifierContext);
 425
 426         // return mount point with broker
 427         when(identifierContext.getMountPoint()).thenReturn(mountPoint);
 428         when(mountPoint.getService(DOMDataBroker.class)).thenReturn(Optional.of(mountDataBroker));
 429         when(mountDataBroker.newReadWriteTransaction()).thenReturn(transaction);
 430         when(transaction.submit()).thenReturn(expFuture);
 431
 432         final PatchStatusContext status = this.brokerFacade.patchConfigurationDataWithinTransaction(patchContext);
 433
 434         // assert success
 435         assertTrue("Patch operation should be successful on mounted device", status.isOk());
 436     }
 437
 438     /**
 439      * Negative test for Patch operation when mounted device does not support {@link DOMDataBroker service.}
 440      * Patch operation should fail with global error.
 441      */
 442     @Test
 443     @SuppressWarnings("unchecked")
 444     public void testPatchConfigurationDataWithinTransactionMountFail() throws Exception {
 445         final PatchContext patchContext = mock(PatchContext.class);
 446         final InstanceIdentifierContext identifierContext = mock(InstanceIdentifierContext.class);
 447         final DOMMountPoint mountPoint = mock(DOMMountPoint.class);
 448         final DOMDataBroker mountDataBroker = mock(DOMDataBroker.class);
 449         final DOMDataReadWriteTransaction transaction = mock(DOMDataReadWriteTransaction.class);
 450         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = Futures.immediateCheckedFuture(null);
 451
 452         when(patchContext.getData()).thenReturn(Lists.newArrayList());
 453         when(patchContext.getInstanceIdentifierContext()).thenReturn(identifierContext);
 454         when(identifierContext.getMountPoint()).thenReturn(mountPoint);
 455
 456         // missing broker on mounted device
 457         when(mountPoint.getService(DOMDataBroker.class)).thenReturn(Optional.absent());
 458
 459         when(mountDataBroker.newReadWriteTransaction()).thenReturn(transaction);
 460         when(transaction.submit()).thenReturn(expFuture);
 461
 462         final PatchStatusContext status = this.brokerFacade.patchConfigurationDataWithinTransaction(patchContext);
 463
 464         // assert not successful operation with error
 465         assertNotNull(status.getGlobalErrors());
 466         assertEquals(1, status.getGlobalErrors().size());
 467         assertEquals(ErrorType.APPLICATION, status.getGlobalErrors().get(0).getErrorType());
 468         assertEquals(ErrorTag.OPERATION_FAILED, status.getGlobalErrors().get(0).getErrorTag());
 469
 470         assertFalse("Patch operation should fail on mounted device without Broker", status.isOk());
 471     }
 472 }