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