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