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