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

   1 /*
   2  * Copyright (c) 2014, 2015 Brocade Communications Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8
   9 package org.opendaylight.controller.sal.restconf.impl.test;
  10
  11 import static org.junit.Assert.assertEquals;
  12 import static org.junit.Assert.assertFalse;
  13 import static org.junit.Assert.assertNotNull;
  14 import static org.junit.Assert.assertSame;
  15 import static org.junit.Assert.assertTrue;
  16 import static org.junit.Assert.fail;
  17 import static org.mockito.Matchers.any;
  18 import static org.mockito.Matchers.eq;
  19 import static org.mockito.Mockito.doReturn;
  20 import static org.mockito.Mockito.inOrder;
  21 import static org.mockito.Mockito.mock;
  22 import static org.mockito.Mockito.times;
  23 import static org.mockito.Mockito.verify;
  24 import static org.mockito.Mockito.verifyNoMoreInteractions;
  25 import static org.mockito.Mockito.when;
  26
  27 import com.google.common.base.Optional;
  28 import com.google.common.collect.Lists;
  29 import com.google.common.util.concurrent.CheckedFuture;
  30 import com.google.common.util.concurrent.Futures;
  31 import java.util.concurrent.Future;
  32 import org.junit.Before;
  33 import org.junit.Test;
  34 import org.mockito.InOrder;
  35 import org.mockito.Mock;
  36 import org.mockito.Mockito;
  37 import org.mockito.MockitoAnnotations;
  38 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker.DataChangeScope;
  39 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  40 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  41 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  42 import org.opendaylight.controller.md.sal.dom.api.DOMDataBroker;
  43 import org.opendaylight.controller.md.sal.dom.api.DOMDataChangeListener;
  44 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadOnlyTransaction;
  45 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
  46 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  47 import org.opendaylight.controller.md.sal.dom.api.DOMMountPoint;
  48 import org.opendaylight.controller.md.sal.dom.api.DOMNotificationService;
  49 import org.opendaylight.controller.md.sal.dom.api.DOMRpcException;
  50 import org.opendaylight.controller.md.sal.dom.api.DOMRpcResult;
  51 import org.opendaylight.controller.md.sal.dom.api.DOMRpcService;
  52 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
  53 import org.opendaylight.controller.sal.core.api.Broker.ConsumerSession;
  54 import org.opendaylight.netconf.sal.restconf.impl.BrokerFacade;
  55 import org.opendaylight.netconf.sal.restconf.impl.ControllerContext;
  56 import org.opendaylight.netconf.sal.restconf.impl.InstanceIdentifierContext;
  57 import org.opendaylight.netconf.sal.restconf.impl.PatchContext;
  58 import org.opendaylight.netconf.sal.restconf.impl.PatchStatusContext;
  59 import org.opendaylight.netconf.sal.restconf.impl.PutResult;
  60 import org.opendaylight.netconf.sal.restconf.impl.RestconfDocumentedException;
  61 import org.opendaylight.netconf.sal.restconf.impl.RestconfError;
  62 import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorTag;
  63 import org.opendaylight.netconf.sal.restconf.impl.RestconfError.ErrorType;
  64 import org.opendaylight.netconf.sal.streams.listeners.ListenerAdapter;
  65 import org.opendaylight.netconf.sal.streams.listeners.NotificationListenerAdapter;
  66 import org.opendaylight.netconf.sal.streams.listeners.Notificator;
  67 import org.opendaylight.restconf.handlers.SchemaContextHandler;
  68 import org.opendaylight.restconf.handlers.TransactionChainHandler;
  69 import org.opendaylight.yang.gen.v1.urn.sal.restconf.event.subscription.rev140708.NotificationOutputTypeGrouping.NotificationOutputType;
  70 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  71 import org.opendaylight.yangtools.yang.common.QName;
  72 import org.opendaylight.yangtools.yang.common.RpcError;
  73 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
  74 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  75 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
  76 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  77 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
  78 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  79 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
  80
  81 /**
  82  * Unit tests for BrokerFacade.
  83  *
  84  * @author Thomas Pantelis
  85  */
  86 public class BrokerFacadeTest {
  87
  88     @Mock
  89     private DOMDataBroker domDataBroker;
  90     @Mock
  91     private DOMNotificationService domNotification;
  92     @Mock
  93     private ConsumerSession context;
  94     @Mock
  95     private DOMRpcService mockRpcService;
  96     @Mock
  97     private DOMMountPoint mockMountInstance;
  98     @Mock
  99     private DOMDataReadOnlyTransaction readTransaction;
 100     @Mock
 101     private DOMDataWriteTransaction writeTransaction;
 102     @Mock
 103     private DOMDataReadWriteTransaction rwTransaction;
 104
 105     private final BrokerFacade brokerFacade = BrokerFacade.getInstance();
 106     private final NormalizedNode<?, ?> dummyNode = createDummyNode("test:module", "2014-01-09", "interfaces");
 107     private final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> dummyNodeInFuture =
 108             wrapDummyNode(this.dummyNode);
 109     private final QName qname = TestUtils.buildQName("interfaces","test:module", "2014-01-09");
 110     private final SchemaPath type = SchemaPath.create(true, this.qname);
 111     private final YangInstanceIdentifier instanceID = YangInstanceIdentifier.builder().node(this.qname).build();
 112
 113     @Before
 114     public void setUp() throws Exception {
 115         MockitoAnnotations.initMocks(this);
 116         this.brokerFacade.setDomDataBroker(this.domDataBroker);
 117         this.brokerFacade.setDomNotificationService(this.domNotification);
 118         this.brokerFacade.setRpcService(this.mockRpcService);
 119         this.brokerFacade.setContext(this.context);
 120         when(this.domDataBroker.newReadOnlyTransaction()).thenReturn(this.readTransaction);
 121         when(this.domDataBroker.newWriteOnlyTransaction()).thenReturn(this.writeTransaction);
 122         when(this.domDataBroker.newReadWriteTransaction()).thenReturn(this.rwTransaction);
 123
 124         ControllerContext.getInstance().setSchemas(TestUtils.loadSchemaContext("/full-versions/test-module"));
 125     }
 126
 127     private static CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> wrapDummyNode(
 128             final NormalizedNode<?, ?> dummyNode) {
 129         return Futures.immediateCheckedFuture(Optional.<NormalizedNode<?, ?>>of(dummyNode));
 130     }
 131
 132     private static CheckedFuture<Boolean, ReadFailedException> wrapExistence(final Boolean exists) {
 133         return Futures.immediateCheckedFuture(exists);
 134     }
 135
 136     /**
 137      * Value of this node shouldn't be important for testing purposes.
 138      */
 139     private static NormalizedNode<?, ?> createDummyNode(final String namespace, final String date,
 140             final String localName) {
 141         return Builders.containerBuilder()
 142                 .withNodeIdentifier(new NodeIdentifier(QName.create(namespace, date, localName))).build();
 143     }
 144
 145     @Test
 146     public void testReadConfigurationData() {
 147         when(this.readTransaction.read(any(LogicalDatastoreType.class), any(YangInstanceIdentifier.class))).thenReturn(
 148                 this.dummyNodeInFuture);
 149
 150         final NormalizedNode<?, ?> actualNode = this.brokerFacade.readConfigurationData(this.instanceID);
 151
 152         assertSame("readConfigurationData", this.dummyNode, actualNode);
 153     }
 154
 155     @Test
 156     public void testReadOperationalData() {
 157         when(this.readTransaction.read(any(LogicalDatastoreType.class), any(YangInstanceIdentifier.class))).thenReturn(
 158                 this.dummyNodeInFuture);
 159
 160         final NormalizedNode<?, ?> actualNode = this.brokerFacade.readOperationalData(this.instanceID);
 161
 162         assertSame("readOperationalData", this.dummyNode, actualNode);
 163     }
 164
 165     @Test(expected = RestconfDocumentedException.class)
 166     public void testReadOperationalDataWithNoDataBroker() {
 167         this.brokerFacade.setDomDataBroker(null);
 168
 169         this.brokerFacade.readOperationalData(this.instanceID);
 170     }
 171
 172     @Test
 173     public void test503() throws Exception {
 174         final RpcError error = RpcResultBuilder.newError(
 175                 RpcError.ErrorType.TRANSPORT,
 176                 ErrorTag.RESOURCE_DENIED.getTagValue(),
 177                 "Master is down. Please try again.");
 178         final ReadFailedException exception503 = new ReadFailedException("Read from transaction failed", error);
 179         doReturn(Futures.immediateFailedCheckedFuture(exception503))
 180                 .when(readTransaction).read(any(LogicalDatastoreType.class), any(YangInstanceIdentifier.class));
 181         try {
 182             brokerFacade.readConfigurationData(this.instanceID, "explicit");
 183             fail("This test should fail.");
 184         } catch (final RestconfDocumentedException e) {
 185             assertEquals("getErrorTag", ErrorTag.RESOURCE_DENIED_TRANSPORT, e.getErrors().get(0).getErrorTag());
 186             assertEquals("getErrorType", ErrorType.TRANSPORT, e.getErrors().get(0).getErrorType());
 187             assertEquals("getErrorMessage", "Master is down. Please try again.",
 188                     e.getErrors().get(0).getErrorMessage());
 189         }
 190     }
 191
 192     @Test
 193     public void testInvokeRpc() throws Exception {
 194         final DOMRpcResult expResult = mock(DOMRpcResult.class);
 195         final CheckedFuture<DOMRpcResult, DOMRpcException> future = Futures.immediateCheckedFuture(expResult);
 196         when(this.mockRpcService.invokeRpc(this.type, this.dummyNode)).thenReturn(future);
 197
 198         final CheckedFuture<DOMRpcResult, DOMRpcException> actualFuture = this.brokerFacade
 199                 .invokeRpc(this.type, this.dummyNode);
 200         assertNotNull("Future is null", actualFuture);
 201         final DOMRpcResult actualResult = actualFuture.get();
 202         assertSame("invokeRpc", expResult, actualResult);
 203     }
 204
 205     @Test(expected = RestconfDocumentedException.class)
 206     public void testInvokeRpcWithNoConsumerSession() {
 207         this.brokerFacade.setContext(null);
 208         this.brokerFacade.invokeRpc(this.type, this.dummyNode);
 209     }
 210
 211     @Test
 212     public void testCommitConfigurationDataPut() throws Exception {
 213         @SuppressWarnings("unchecked")
 214         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = mock(CheckedFuture.class);
 215         when(this.rwTransaction.submit()).thenReturn(expFuture);
 216
 217         final Optional<NormalizedNode<?, ?>> optionalMock = mock(Optional.class);
 218         when(optionalMock.get()).thenReturn(null);
 219
 220         final CheckedFuture<Optional<NormalizedNode<?, ?>>, ReadFailedException> readFuture = Futures
 221                 .immediateCheckedFuture(optionalMock);
 222         when(this.rwTransaction.read(LogicalDatastoreType.CONFIGURATION, this.instanceID)).thenReturn(readFuture);
 223
 224         final PutResult result = this.brokerFacade.commitConfigurationDataPut(mock(SchemaContext.class),
 225                 this.instanceID, this.dummyNode, null, null);
 226
 227         final Future<Void> actualFuture = result.getFutureOfPutData();
 228
 229         assertSame("commitConfigurationDataPut", expFuture, actualFuture);
 230
 231         final InOrder inOrder = inOrder(this.domDataBroker, this.rwTransaction);
 232         inOrder.verify(this.domDataBroker).newReadWriteTransaction();
 233         inOrder.verify(this.rwTransaction).put(LogicalDatastoreType.CONFIGURATION, this.instanceID, this.dummyNode);
 234         inOrder.verify(this.rwTransaction).submit();
 235     }
 236
 237     @Test
 238     public void testCommitConfigurationDataPost() {
 239         @SuppressWarnings("unchecked")
 240         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = mock(CheckedFuture.class);
 241
 242         when(this.rwTransaction.exists(LogicalDatastoreType.CONFIGURATION, this.instanceID))
 243                 .thenReturn(wrapExistence(false));
 244
 245         when(this.rwTransaction.submit()).thenReturn(expFuture);
 246
 247         final CheckedFuture<Void, TransactionCommitFailedException> actualFuture = this.brokerFacade
 248                 .commitConfigurationDataPost(mock(SchemaContext.class), this.instanceID, this.dummyNode, null, null);
 249
 250         assertSame("commitConfigurationDataPost", expFuture, actualFuture);
 251
 252         final InOrder inOrder = inOrder(this.domDataBroker, this.rwTransaction);
 253         inOrder.verify(this.domDataBroker).newReadWriteTransaction();
 254         inOrder.verify(this.rwTransaction).exists(LogicalDatastoreType.CONFIGURATION, this.instanceID);
 255         inOrder.verify(this.rwTransaction).put(LogicalDatastoreType.CONFIGURATION, this.instanceID, this.dummyNode);
 256         inOrder.verify(this.rwTransaction).submit();
 257     }
 258
 259     @Test(expected = RestconfDocumentedException.class)
 260     public void testCommitConfigurationDataPostAlreadyExists() {
 261         final CheckedFuture<Boolean, ReadFailedException> successFuture = Futures.immediateCheckedFuture(Boolean.TRUE);
 262         when(this.rwTransaction.exists(eq(LogicalDatastoreType.CONFIGURATION), any(YangInstanceIdentifier.class)))
 263                 .thenReturn(successFuture);
 264         try {
 265             // Schema context is only necessary for ensuring parent structure
 266             this.brokerFacade.commitConfigurationDataPost((SchemaContext) null, this.instanceID, this.dummyNode, null,
 267                     null);
 268         } catch (final RestconfDocumentedException e) {
 269             assertEquals("getErrorTag", RestconfError.ErrorTag.DATA_EXISTS, e.getErrors().get(0).getErrorTag());
 270             throw e;
 271         }
 272     }
 273
 274     /**
 275      * Positive test of delete operation when data to delete exits. Returned value and order of steps are validated.
 276      */
 277     @Test
 278     public void testCommitConfigurationDataDelete() throws Exception {
 279         // assume that data to delete exists
 280         prepareDataForDelete(true);
 281
 282         // expected result
 283         @SuppressWarnings("unchecked")
 284         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = mock(CheckedFuture.class);
 285         when(this.rwTransaction.submit()).thenReturn(expFuture);
 286
 287         // test
 288         final CheckedFuture<Void, TransactionCommitFailedException> actualFuture = this.brokerFacade
 289                 .commitConfigurationDataDelete(this.instanceID);
 290
 291         // verify result and interactions
 292         assertSame("commitConfigurationDataDelete", expFuture, actualFuture);
 293
 294         // check exists, delete, submit
 295         final InOrder inOrder = inOrder(this.domDataBroker, this.rwTransaction);
 296         inOrder.verify(this.rwTransaction).exists(LogicalDatastoreType.CONFIGURATION, this.instanceID);
 297         inOrder.verify(this.rwTransaction).delete(LogicalDatastoreType.CONFIGURATION, this.instanceID);
 298         inOrder.verify(this.rwTransaction).submit();
 299     }
 300
 301     /**
 302      * Negative test of delete operation when data to delete does not exist. Error 404 should be returned.
 303      */
 304     @Test
 305     public void testCommitConfigurationDataDeleteNoData() throws Exception {
 306         // assume that data to delete does not exist
 307         prepareDataForDelete(false);
 308
 309         // try to delete and expect 404 error
 310         try {
 311             this.brokerFacade.commitConfigurationDataDelete(this.instanceID);
 312             fail("Delete operation should fail due to missing data");
 313         } catch (final RestconfDocumentedException e) {
 314             assertEquals(ErrorType.PROTOCOL, e.getErrors().get(0).getErrorType());
 315             assertEquals(ErrorTag.DATA_MISSING, e.getErrors().get(0).getErrorTag());
 316             assertEquals(404, e.getErrors().get(0).getErrorTag().getStatusCode());
 317         }
 318     }
 319
 320     /**
 321      * Prepare conditions to test delete operation. Data to delete exists or does not exist according to value of
 322      * {@code assumeDataExists} parameter.
 323      * @param assumeDataExists boolean to assume if data exists
 324      */
 325     private void prepareDataForDelete(final boolean assumeDataExists) {
 326         when(this.rwTransaction.exists(LogicalDatastoreType.CONFIGURATION, this.instanceID))
 327                 .thenReturn(Futures.immediateCheckedFuture(new Boolean(assumeDataExists)));
 328     }
 329
 330     @Test
 331     public void testRegisterToListenDataChanges() {
 332         final ListenerAdapter listener = Notificator.createListener(this.instanceID, "stream",
 333                 NotificationOutputType.XML);
 334
 335         @SuppressWarnings("unchecked")
 336         final ListenerRegistration<DOMDataChangeListener> mockRegistration = mock(ListenerRegistration.class);
 337
 338         when(this.domDataBroker.registerDataChangeListener(any(LogicalDatastoreType.class), eq(this.instanceID),
 339                 eq(listener), eq(DataChangeScope.BASE))).thenReturn(mockRegistration);
 340
 341         this.brokerFacade.registerToListenDataChanges(
 342                 LogicalDatastoreType.CONFIGURATION, DataChangeScope.BASE, listener);
 343
 344         verify(this.domDataBroker).registerDataChangeListener(
 345                 LogicalDatastoreType.CONFIGURATION, this.instanceID, listener, DataChangeScope.BASE);
 346
 347         assertEquals("isListening", true, listener.isListening());
 348
 349         this.brokerFacade.registerToListenDataChanges(
 350                 LogicalDatastoreType.CONFIGURATION, DataChangeScope.BASE, listener);
 351         verifyNoMoreInteractions(this.domDataBroker);
 352     }
 353
 354     /**
 355      * Create, register, close and remove notification listener.
 356      */
 357     @Test
 358     public void testRegisterToListenNotificationChanges() throws Exception {
 359         // create test notification listener
 360         final String identifier = "create-notification-stream/toaster:toastDone";
 361         final SchemaPath path = SchemaPath.create(true,
 362                 QName.create("http://netconfcentral.org/ns/toaster", "2009-11-20", "toastDone"));
 363         Notificator.createNotificationListener(Lists.newArrayList(path), identifier, "XML");
 364         final NotificationListenerAdapter listener = Notificator.getNotificationListenerFor(identifier).get(0);
 365
 366         // mock registration
 367         final ListenerRegistration<NotificationListenerAdapter> registration = mock(ListenerRegistration.class);
 368         when(this.domNotification.registerNotificationListener(listener, listener.getSchemaPath()))
 369                 .thenReturn(registration);
 370
 371         // test to register listener for the first time
 372         this.brokerFacade.registerToListenNotification(listener);
 373         assertEquals("Registration was not successful", true, listener.isListening());
 374
 375         // try to register for the second time
 376         this.brokerFacade.registerToListenNotification(listener);
 377         assertEquals("Registration was not successful", true, listener.isListening());
 378
 379         // registrations should be invoked only once
 380         verify(this.domNotification, times(1)).registerNotificationListener(listener, listener.getSchemaPath());
 381
 382         final DOMTransactionChain transactionChain = mock(DOMTransactionChain.class);
 383         final DOMDataWriteTransaction wTx = mock(DOMDataWriteTransaction.class);
 384         final CheckedFuture<Void, TransactionCommitFailedException> checked = Futures.immediateCheckedFuture(null);
 385         when(wTx.submit()).thenReturn(checked);
 386         when(transactionChain.newWriteOnlyTransaction()).thenReturn(wTx);
 387         final TransactionChainHandler transactionChainHandler = new TransactionChainHandler(transactionChain);
 388         final SchemaContextHandler schemaHandler = Mockito.mock(SchemaContextHandler.class);
 389         final SchemaContext schCtx = TestUtils.loadSchemaContext("/modules");
 390         when(schemaHandler.get()).thenReturn(schCtx);
 391         listener.setCloseVars(transactionChainHandler, schemaHandler);
 392         // close and remove test notification listener
 393         listener.close();
 394         Notificator.removeListenerIfNoSubscriberExists(listener);
 395     }
 396
 397     /**
 398      * Test Patch method on the server with no data.
 399      */
 400     @Test
 401     @SuppressWarnings("unchecked")
 402     public void testPatchConfigurationDataWithinTransactionServer() throws Exception {
 403         final PatchContext patchContext = mock(PatchContext.class);
 404         final InstanceIdentifierContext identifierContext = mock(InstanceIdentifierContext.class);
 405         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = Futures.immediateCheckedFuture(null);
 406
 407         when(patchContext.getData()).thenReturn(Lists.newArrayList());
 408         when(patchContext.getInstanceIdentifierContext()).thenReturn(identifierContext);
 409
 410         // no mount point
 411         when(identifierContext.getMountPoint()).thenReturn(null);
 412
 413         when(this.rwTransaction.submit()).thenReturn(expFuture);
 414
 415         final PatchStatusContext status = this.brokerFacade.patchConfigurationDataWithinTransaction(patchContext);
 416
 417         // assert success
 418         assertTrue("Patch operation should be successful on server", status.isOk());
 419     }
 420
 421     /**
 422      * Test Patch method on mounted device with no data.
 423      */
 424     @Test
 425     @SuppressWarnings("unchecked")
 426     public void testPatchConfigurationDataWithinTransactionMount() throws Exception {
 427         final PatchContext patchContext = mock(PatchContext.class);
 428         final InstanceIdentifierContext identifierContext = mock(InstanceIdentifierContext.class);
 429         final DOMMountPoint mountPoint = mock(DOMMountPoint.class);
 430         final DOMDataBroker mountDataBroker = mock(DOMDataBroker.class);
 431         final DOMDataReadWriteTransaction transaction = mock(DOMDataReadWriteTransaction.class);
 432         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = Futures.immediateCheckedFuture(null);
 433
 434         when(patchContext.getData()).thenReturn(Lists.newArrayList());
 435         when(patchContext.getInstanceIdentifierContext()).thenReturn(identifierContext);
 436
 437         // return mount point with broker
 438         when(identifierContext.getMountPoint()).thenReturn(mountPoint);
 439         when(mountPoint.getService(DOMDataBroker.class)).thenReturn(Optional.of(mountDataBroker));
 440         when(mountDataBroker.newReadWriteTransaction()).thenReturn(transaction);
 441         when(transaction.submit()).thenReturn(expFuture);
 442
 443         final PatchStatusContext status = this.brokerFacade.patchConfigurationDataWithinTransaction(patchContext);
 444
 445         // assert success
 446         assertTrue("Patch operation should be successful on mounted device", status.isOk());
 447     }
 448
 449     /**
 450      * Negative test for Patch operation when mounted device does not support {@link DOMDataBroker service.}
 451      * Patch operation should fail with global error.
 452      */
 453     @Test
 454     @SuppressWarnings("unchecked")
 455     public void testPatchConfigurationDataWithinTransactionMountFail() throws Exception {
 456         final PatchContext patchContext = mock(PatchContext.class);
 457         final InstanceIdentifierContext identifierContext = mock(InstanceIdentifierContext.class);
 458         final DOMMountPoint mountPoint = mock(DOMMountPoint.class);
 459         final DOMDataBroker mountDataBroker = mock(DOMDataBroker.class);
 460         final DOMDataReadWriteTransaction transaction = mock(DOMDataReadWriteTransaction.class);
 461         final CheckedFuture<Void, TransactionCommitFailedException> expFuture = Futures.immediateCheckedFuture(null);
 462
 463         when(patchContext.getData()).thenReturn(Lists.newArrayList());
 464         when(patchContext.getInstanceIdentifierContext()).thenReturn(identifierContext);
 465         when(identifierContext.getMountPoint()).thenReturn(mountPoint);
 466
 467         // missing broker on mounted device
 468         when(mountPoint.getService(DOMDataBroker.class)).thenReturn(Optional.absent());
 469
 470         when(mountDataBroker.newReadWriteTransaction()).thenReturn(transaction);
 471         when(transaction.submit()).thenReturn(expFuture);
 472
 473         final PatchStatusContext status = this.brokerFacade.patchConfigurationDataWithinTransaction(patchContext);
 474
 475         // assert not successful operation with error
 476         assertNotNull(status.getGlobalErrors());
 477         assertEquals(1, status.getGlobalErrors().size());
 478         assertEquals(ErrorType.APPLICATION, status.getGlobalErrors().get(0).getErrorType());
 479         assertEquals(ErrorTag.OPERATION_FAILED, status.getGlobalErrors().get(0).getErrorTag());
 480
 481         assertFalse("Patch operation should fail on mounted device without Broker", status.isOk());
 482     }
 483 }