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.HashMap;
  32 import java.util.concurrent.Future;
  33 import org.junit.Before;
  34 import org.junit.Test;
  35 import org.mockito.InOrder;
  36 import org.mockito.Mock;
  37 import org.mockito.Mockito;
  38 import org.mockito.MockitoAnnotations;
  39 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
  40 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  41 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  42 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  43 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  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.DOMDataTreeChangeService;
  47 import org.opendaylight.controller.md.sal.dom.api.DOMDataTreeIdentifier;
  48 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  49 import org.opendaylight.controller.md.sal.dom.api.DOMMountPoint;
  50 import org.opendaylight.controller.md.sal.dom.api.DOMNotificationService;
  51 import org.opendaylight.controller.md.sal.dom.api.DOMRpcException;
  52 import org.opendaylight.controller.md.sal.dom.api.DOMRpcResult;
  53 import org.opendaylight.controller.md.sal.dom.api.DOMRpcService;
  54 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
  55 import org.opendaylight.controller.md.sal.rest.common.TestRestconfUtils;
  56 import org.opendaylight.netconf.sal.restconf.impl.BrokerFacade;
  57 import org.opendaylight.netconf.sal.restconf.impl.ControllerContext;
  58 import org.opendaylight.netconf.sal.restconf.impl.PutResult;
  59 import org.opendaylight.netconf.sal.streams.listeners.ListenerAdapter;
  60 import org.opendaylight.netconf.sal.streams.listeners.NotificationListenerAdapter;
  61 import org.opendaylight.netconf.sal.streams.listeners.Notificator;
  62 import org.opendaylight.restconf.common.context.InstanceIdentifierContext;
  63 import org.opendaylight.restconf.common.errors.RestconfDocumentedException;
  64 import org.opendaylight.restconf.common.errors.RestconfError;
  65 import org.opendaylight.restconf.common.errors.RestconfError.ErrorTag;
  66 import org.opendaylight.restconf.common.errors.RestconfError.ErrorType;
  67 import org.opendaylight.restconf.common.patch.PatchContext;
  68 import org.opendaylight.restconf.common.patch.PatchStatusContext;
  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 DOMRpcService mockRpcService;
  94     @Mock
  95     private DOMMountPoint mockMountInstance;
  96     @Mock
  97     private DOMDataReadOnlyTransaction readTransaction;
  98     @Mock
  99     private DOMDataWriteTransaction writeTransaction;
 100     @Mock
 101     private DOMDataReadWriteTransaction rwTransaction;
 102
 103     private final BrokerFacade brokerFacade = BrokerFacade.getInstance();
 104     private final NormalizedNode<?, ?> dummyNode = createDummyNode("test:module", "2014-01-09", "interfaces");
 105     private final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> dummyNodeInFuture =
 106             wrapDummyNode(this.dummyNode);
 107     private final QName qname = TestUtils.buildQName("interfaces","test:module", "2014-01-09");
 108     private final SchemaPath type = SchemaPath.create(true, this.qname);
 109     private final YangInstanceIdentifier instanceID = YangInstanceIdentifier.builder().node(this.qname).build();
 110     private ControllerContext controllerContext;
 111
 112     @Before
 113     public void setUp() throws Exception {
 114         MockitoAnnotations.initMocks(this);
 115
 116         controllerContext = TestRestconfUtils.newControllerContext(
 117                 TestUtils.loadSchemaContext("/full-versions/test-module", "/modules"));
 118
 119         this.brokerFacade.setDomDataBroker(this.domDataBroker);
 120         this.brokerFacade.setDomNotificationService(this.domNotification);
 121         this.brokerFacade.setRpcService(this.mockRpcService);
 122         this.brokerFacade.setControllerContext(controllerContext);
 123
 124         when(this.domDataBroker.newReadOnlyTransaction()).thenReturn(this.readTransaction);
 125         when(this.domDataBroker.newWriteOnlyTransaction()).thenReturn(this.writeTransaction);
 126         when(this.domDataBroker.newReadWriteTransaction()).thenReturn(this.rwTransaction);
 127         HashMap extensions = new HashMap();
 128         extensions.put(DOMDataTreeChangeService.class, Mockito.mock(DOMDataTreeChangeService.class));
 129         when(this.domDataBroker.getSupportedExtensions()).thenReturn(extensions);
 130     }
 131
 132     private static CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> wrapDummyNode(
 133             final NormalizedNode<?, ?> dummyNode) {
 134         return Futures.immediateCheckedFuture(Optional.<NormalizedNode<?, ?>>of(dummyNode));
 135     }
 136
 137     private static CheckedFuture<Boolean, ReadFailedException> wrapExistence(final Boolean exists) {
 138         return Futures.immediateCheckedFuture(exists);
 139     }
 140
 141     /**
 142      * Value of this node shouldn't be important for testing purposes.
 143      */
 144     private static NormalizedNode<?, ?> createDummyNode(final String namespace, final String date,
 145             final String localName) {
 146         return Builders.containerBuilder()
 147                 .withNodeIdentifier(new NodeIdentifier(QName.create(namespace, date, localName))).build();
 148     }
 149
 150     @Test
 151     public void testReadConfigurationData() {
 152         when(this.readTransaction.read(any(LogicalDatastoreType.class), any(YangInstanceIdentifier.class))).thenReturn(
 153                 this.dummyNodeInFuture);
 154
 155         final NormalizedNode<?, ?> actualNode = this.brokerFacade.readConfigurationData(this.instanceID);
 156
 157         assertSame("readConfigurationData", this.dummyNode, actualNode);
 158     }
 159
 160     @Test
 161     public void testReadOperationalData() {
 162         when(this.readTransaction.read(any(LogicalDatastoreType.class), any(YangInstanceIdentifier.class))).thenReturn(
 163                 this.dummyNodeInFuture);
 164
 165         final NormalizedNode<?, ?> actualNode = this.brokerFacade.readOperationalData(this.instanceID);
 166
 167         assertSame("readOperationalData", this.dummyNode, actualNode);
 168     }
 169
 170     @Test(expected = RestconfDocumentedException.class)
 171     public void testReadOperationalDataWithNoDataBroker() {
 172         this.brokerFacade.setDomDataBroker(null);
 173
 174         this.brokerFacade.readOperationalData(this.instanceID);
 175     }
 176
 177     @Test
 178     public void test503() throws Exception {
 179         final RpcError error = RpcResultBuilder.newError(
 180                 RpcError.ErrorType.TRANSPORT,
 181                 ErrorTag.RESOURCE_DENIED.getTagValue(),
 182                 "Master is down. Please try again.");
 183         final ReadFailedException exception503 = new ReadFailedException("Read from transaction failed", error);
 184         doReturn(Futures.immediateFailedCheckedFuture(exception503))
 185                 .when(readTransaction).read(any(LogicalDatastoreType.class), any(YangInstanceIdentifier.class));
 186         try {
 187             brokerFacade.readConfigurationData(this.instanceID, "explicit");
 188             fail("This test should fail.");
 189         } catch (final RestconfDocumentedException e) {
 190             assertEquals("getErrorTag", ErrorTag.RESOURCE_DENIED_TRANSPORT, e.getErrors().get(0).getErrorTag());
 191             assertEquals("getErrorType", ErrorType.TRANSPORT, e.getErrors().get(0).getErrorType());
 192             assertEquals("getErrorMessage", "Master is down. Please try again.",
 193                     e.getErrors().get(0).getErrorMessage());
 194         }
 195     }
 196
 197     @Test
 198     public void testInvokeRpc() throws Exception {
 199         final DOMRpcResult expResult = mock(DOMRpcResult.class);
 200         final CheckedFuture<DOMRpcResult, DOMRpcException> future = Futures.immediateCheckedFuture(expResult);
 201         when(this.mockRpcService.invokeRpc(this.type, this.dummyNode)).thenReturn(future);
 202
 203         final CheckedFuture<DOMRpcResult, DOMRpcException> actualFuture = this.brokerFacade
 204                 .invokeRpc(this.type, this.dummyNode);
 205         assertNotNull("Future is null", actualFuture);
 206         final DOMRpcResult actualResult = actualFuture.get();
 207         assertSame("invokeRpc", expResult, actualResult);
 208     }
 209
 210     @Test(expected = RestconfDocumentedException.class)
 211     public void testInvokeRpcWithNoConsumerSession() {
 212         brokerFacade.setDomDataBroker(null);
 213         this.brokerFacade.invokeRpc(this.type, this.dummyNode);
 214     }
 215
 216     @Test
 217     public void testCommitConfigurationDataPut() throws Exception {
 218         @SuppressWarnings("unchecked")
 219         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = mock(CheckedFuture.class);
 220         when(this.rwTransaction.submit()).thenReturn(expFuture);
 221
 222         final Optional<NormalizedNode<?, ?>> optionalMock = mock(Optional.class);
 223         when(optionalMock.get()).thenReturn(null);
 224
 225         final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> readFuture = Futures
 226                 .immediateCheckedFuture(optionalMock);
 227         when(this.rwTransaction.read(LogicalDatastoreType.CONFIGURATION, this.instanceID)).thenReturn(readFuture);
 228
 229         final PutResult result = this.brokerFacade.commitConfigurationDataPut(mock(SchemaContext.class),
 230                 this.instanceID, this.dummyNode, null, null);
 231
 232         final Future<Void> actualFuture = result.getFutureOfPutData();
 233
 234         assertSame("commitConfigurationDataPut", expFuture, actualFuture);
 235
 236         final InOrder inOrder = inOrder(this.domDataBroker, this.rwTransaction);
 237         inOrder.verify(this.domDataBroker).newReadWriteTransaction();
 238         inOrder.verify(this.rwTransaction).put(LogicalDatastoreType.CONFIGURATION, this.instanceID, this.dummyNode);
 239         inOrder.verify(this.rwTransaction).submit();
 240     }
 241
 242     @Test
 243     public void testCommitConfigurationDataPost() {
 244         @SuppressWarnings("unchecked")
 245         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = mock(CheckedFuture.class);
 246
 247         when(this.rwTransaction.exists(LogicalDatastoreType.CONFIGURATION, this.instanceID))
 248                 .thenReturn(wrapExistence(false));
 249
 250         when(this.rwTransaction.submit()).thenReturn(expFuture);
 251
 252         final CheckedFuture<Void, TransactionCommitFailedException> actualFuture = this.brokerFacade
 253                 .commitConfigurationDataPost(mock(SchemaContext.class), this.instanceID, this.dummyNode, null, null);
 254
 255         assertSame("commitConfigurationDataPost", expFuture, actualFuture);
 256
 257         final InOrder inOrder = inOrder(this.domDataBroker, this.rwTransaction);
 258         inOrder.verify(this.domDataBroker).newReadWriteTransaction();
 259         inOrder.verify(this.rwTransaction).exists(LogicalDatastoreType.CONFIGURATION, this.instanceID);
 260         inOrder.verify(this.rwTransaction).put(LogicalDatastoreType.CONFIGURATION, this.instanceID, this.dummyNode);
 261         inOrder.verify(this.rwTransaction).submit();
 262     }
 263
 264     @Test(expected = RestconfDocumentedException.class)
 265     public void testCommitConfigurationDataPostAlreadyExists() {
 266         final CheckedFuture<Boolean, ReadFailedException> successFuture = Futures.immediateCheckedFuture(Boolean.TRUE);
 267         when(this.rwTransaction.exists(eq(LogicalDatastoreType.CONFIGURATION), any(YangInstanceIdentifier.class)))
 268                 .thenReturn(successFuture);
 269         try {
 270             // Schema context is only necessary for ensuring parent structure
 271             this.brokerFacade.commitConfigurationDataPost((SchemaContext) null, this.instanceID, this.dummyNode, null,
 272                     null);
 273         } catch (final RestconfDocumentedException e) {
 274             assertEquals("getErrorTag", RestconfError.ErrorTag.DATA_EXISTS, e.getErrors().get(0).getErrorTag());
 275             throw e;
 276         }
 277     }
 278
 279     /**
 280      * Positive test of delete operation when data to delete exits. Returned value and order of steps are validated.
 281      */
 282     @Test
 283     public void testCommitConfigurationDataDelete() throws Exception {
 284         // assume that data to delete exists
 285         prepareDataForDelete(true);
 286
 287         // expected result
 288         @SuppressWarnings("unchecked")
 289         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = mock(CheckedFuture.class);
 290         when(this.rwTransaction.submit()).thenReturn(expFuture);
 291
 292         // test
 293         final CheckedFuture<Void, TransactionCommitFailedException> actualFuture = this.brokerFacade
 294                 .commitConfigurationDataDelete(this.instanceID);
 295
 296         // verify result and interactions
 297         assertSame("commitConfigurationDataDelete", expFuture, actualFuture);
 298
 299         // check exists, delete, submit
 300         final InOrder inOrder = inOrder(this.domDataBroker, this.rwTransaction);
 301         inOrder.verify(this.rwTransaction).exists(LogicalDatastoreType.CONFIGURATION, this.instanceID);
 302         inOrder.verify(this.rwTransaction).delete(LogicalDatastoreType.CONFIGURATION, this.instanceID);
 303         inOrder.verify(this.rwTransaction).submit();
 304     }
 305
 306     /**
 307      * Negative test of delete operation when data to delete does not exist. Error 404 should be returned.
 308      */
 309     @Test
 310     public void testCommitConfigurationDataDeleteNoData() throws Exception {
 311         // assume that data to delete does not exist
 312         prepareDataForDelete(false);
 313
 314         // try to delete and expect 404 error
 315         try {
 316             this.brokerFacade.commitConfigurationDataDelete(this.instanceID);
 317             fail("Delete operation should fail due to missing data");
 318         } catch (final RestconfDocumentedException e) {
 319             assertEquals(ErrorType.PROTOCOL, e.getErrors().get(0).getErrorType());
 320             assertEquals(ErrorTag.DATA_MISSING, e.getErrors().get(0).getErrorTag());
 321             assertEquals(404, e.getErrors().get(0).getErrorTag().getStatusCode());
 322         }
 323     }
 324
 325     /**
 326      * Prepare conditions to test delete operation. Data to delete exists or does not exist according to value of
 327      * {@code assumeDataExists} parameter.
 328      * @param assumeDataExists boolean to assume if data exists
 329      */
 330     private void prepareDataForDelete(final boolean assumeDataExists) {
 331         when(this.rwTransaction.exists(LogicalDatastoreType.CONFIGURATION, this.instanceID))
 332                 .thenReturn(Futures.immediateCheckedFuture(new Boolean(assumeDataExists)));
 333     }
 334
 335     @Test
 336     public void testRegisterToListenDataChanges() {
 337         final ListenerAdapter listener = Notificator.createListener(this.instanceID, "stream",
 338                 NotificationOutputType.XML, controllerContext);
 339
 340         @SuppressWarnings("unchecked")
 341         final ListenerRegistration<ListenerAdapter> mockRegistration = mock(ListenerRegistration.class);
 342
 343         DOMDataTreeChangeService changeService = (DOMDataTreeChangeService)
 344                 this.domDataBroker.getSupportedExtensions().get(DOMDataTreeChangeService.class);
 345         DOMDataTreeIdentifier loc = new DOMDataTreeIdentifier(LogicalDatastoreType.CONFIGURATION, this.instanceID);
 346         when(changeService.registerDataTreeChangeListener(eq(loc), eq(listener))).thenReturn(mockRegistration);
 347
 348         this.brokerFacade.registerToListenDataChanges(
 349                 LogicalDatastoreType.CONFIGURATION, DataChangeScope.BASE, listener);
 350
 351         verify(changeService).registerDataTreeChangeListener(loc, listener);
 352
 353         assertEquals("isListening", true, listener.isListening());
 354
 355         this.brokerFacade.registerToListenDataChanges(
 356                 LogicalDatastoreType.CONFIGURATION, DataChangeScope.BASE, listener);
 357         verifyNoMoreInteractions(changeService);
 358     }
 359
 360     /**
 361      * Create, register, close and remove notification listener.
 362      */
 363     @Test
 364     public void testRegisterToListenNotificationChanges() throws Exception {
 365         // create test notification listener
 366         final String identifier = "create-notification-stream/toaster:toastDone";
 367         final SchemaPath path = SchemaPath.create(true,
 368                 QName.create("http://netconfcentral.org/ns/toaster", "2009-11-20", "toastDone"));
 369         Notificator.createNotificationListener(Lists.newArrayList(path), identifier, "XML", controllerContext);
 370         final NotificationListenerAdapter listener = Notificator.getNotificationListenerFor(identifier).get(0);
 371
 372         // mock registration
 373         final ListenerRegistration<NotificationListenerAdapter> registration = mock(ListenerRegistration.class);
 374         when(this.domNotification.registerNotificationListener(listener, listener.getSchemaPath()))
 375                 .thenReturn(registration);
 376
 377         // test to register listener for the first time
 378         this.brokerFacade.registerToListenNotification(listener);
 379         assertEquals("Registration was not successful", true, listener.isListening());
 380
 381         // try to register for the second time
 382         this.brokerFacade.registerToListenNotification(listener);
 383         assertEquals("Registration was not successful", true, listener.isListening());
 384
 385         // registrations should be invoked only once
 386         verify(this.domNotification, times(1)).registerNotificationListener(listener, listener.getSchemaPath());
 387
 388         final DOMTransactionChain transactionChain = mock(DOMTransactionChain.class);
 389         final DOMDataWriteTransaction wTx = mock(DOMDataWriteTransaction.class);
 390         final CheckedFuture<Void, TransactionCommitFailedException> checked = Futures.immediateCheckedFuture(null);
 391         when(wTx.submit()).thenReturn(checked);
 392         when(transactionChain.newWriteOnlyTransaction()).thenReturn(wTx);
 393         // close and remove test notification listener
 394         listener.close();
 395         Notificator.removeListenerIfNoSubscriberExists(listener);
 396     }
 397
 398     /**
 399      * Test Patch method on the server with no data.
 400      */
 401     @Test
 402     @SuppressWarnings("unchecked")
 403     public void testPatchConfigurationDataWithinTransactionServer() throws Exception {
 404         final PatchContext patchContext = mock(PatchContext.class);
 405         final InstanceIdentifierContext identifierContext = mock(InstanceIdentifierContext.class);
 406         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = Futures.immediateCheckedFuture(null);
 407
 408         when(patchContext.getData()).thenReturn(Lists.newArrayList());
 409         when(patchContext.getInstanceIdentifierContext()).thenReturn(identifierContext);
 410
 411         // no mount point
 412         when(identifierContext.getMountPoint()).thenReturn(null);
 413
 414         when(this.rwTransaction.submit()).thenReturn(expFuture);
 415
 416         final PatchStatusContext status = this.brokerFacade.patchConfigurationDataWithinTransaction(patchContext);
 417
 418         // assert success
 419         assertTrue("Patch operation should be successful on server", status.isOk());
 420     }
 421
 422     /**
 423      * Test Patch method on mounted device with no data.
 424      */
 425     @Test
 426     @SuppressWarnings("unchecked")
 427     public void testPatchConfigurationDataWithinTransactionMount() throws Exception {
 428         final PatchContext patchContext = mock(PatchContext.class);
 429         final InstanceIdentifierContext identifierContext = mock(InstanceIdentifierContext.class);
 430         final DOMMountPoint mountPoint = mock(DOMMountPoint.class);
 431         final DOMDataBroker mountDataBroker = mock(DOMDataBroker.class);
 432         final DOMDataReadWriteTransaction transaction = mock(DOMDataReadWriteTransaction.class);
 433         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = Futures.immediateCheckedFuture(null);
 434
 435         when(patchContext.getData()).thenReturn(Lists.newArrayList());
 436         when(patchContext.getInstanceIdentifierContext()).thenReturn(identifierContext);
 437
 438         // return mount point with broker
 439         when(identifierContext.getMountPoint()).thenReturn(mountPoint);
 440         when(mountPoint.getService(DOMDataBroker.class)).thenReturn(Optional.of(mountDataBroker));
 441         when(mountDataBroker.newReadWriteTransaction()).thenReturn(transaction);
 442         when(transaction.submit()).thenReturn(expFuture);
 443
 444         final PatchStatusContext status = this.brokerFacade.patchConfigurationDataWithinTransaction(patchContext);
 445
 446         // assert success
 447         assertTrue("Patch operation should be successful on mounted device", status.isOk());
 448     }
 449
 450     /**
 451      * Negative test for Patch operation when mounted device does not support {@link DOMDataBroker service.}
 452      * Patch operation should fail with global error.
 453      */
 454     @Test
 455     @SuppressWarnings("unchecked")
 456     public void testPatchConfigurationDataWithinTransactionMountFail() throws Exception {
 457         final PatchContext patchContext = mock(PatchContext.class);
 458         final InstanceIdentifierContext identifierContext = mock(InstanceIdentifierContext.class);
 459         final DOMMountPoint mountPoint = mock(DOMMountPoint.class);
 460         final DOMDataBroker mountDataBroker = mock(DOMDataBroker.class);
 461         final DOMDataReadWriteTransaction transaction = mock(DOMDataReadWriteTransaction.class);
 462         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = Futures.immediateCheckedFuture(null);
 463
 464         when(patchContext.getData()).thenReturn(Lists.newArrayList());
 465         when(patchContext.getInstanceIdentifierContext()).thenReturn(identifierContext);
 466         when(identifierContext.getMountPoint()).thenReturn(mountPoint);
 467
 468         // missing broker on mounted device
 469         when(mountPoint.getService(DOMDataBroker.class)).thenReturn(Optional.absent());
 470
 471         when(mountDataBroker.newReadWriteTransaction()).thenReturn(transaction);
 472         when(transaction.submit()).thenReturn(expFuture);
 473
 474         final PatchStatusContext status = this.brokerFacade.patchConfigurationDataWithinTransaction(patchContext);
 475
 476         // assert not successful operation with error
 477         assertNotNull(status.getGlobalErrors());
 478         assertEquals(1, status.getGlobalErrors().size());
 479         assertEquals(ErrorType.APPLICATION, status.getGlobalErrors().get(0).getErrorType());
 480         assertEquals(ErrorTag.OPERATION_FAILED, status.getGlobalErrors().get(0).getErrorTag());
 481
 482         assertFalse("Patch operation should fail on mounted device without Broker", status.isOk());
 483     }
 484 }