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