dom/mdsal-dom-broker/src/test/java/org/opendaylight/mdsal/dom/broker/DOMDataTreeChangeListenerTest.java

   1 /*
   2  * Copyright (c) 2018 ZTE, 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 package org.opendaylight.mdsal.dom.broker;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertNotNull;
  12 import static org.mockito.ArgumentMatchers.any;
  13 import static org.mockito.Mockito.doNothing;
  14 import static org.mockito.Mockito.mock;
  15 import static org.mockito.Mockito.timeout;
  16 import static org.mockito.Mockito.times;
  17 import static org.mockito.Mockito.verify;
  18
  19 import com.google.common.collect.Iterables;
  20 import com.google.common.util.concurrent.MoreExecutors;
  21 import java.util.List;
  22 import org.junit.Before;
  23 import org.junit.Test;
  24 import org.mockito.ArgumentCaptor;
  25 import org.opendaylight.mdsal.dom.api.DOMDataTreeChangeListener;
  26 import org.opendaylight.mdsal.dom.spi.store.DOMStoreReadWriteTransaction;
  27 import org.opendaylight.mdsal.dom.spi.store.DOMStoreThreePhaseCommitCohort;
  28 import org.opendaylight.mdsal.dom.store.inmemory.InMemoryDOMDataStore;
  29 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  30 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  31 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  32 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
  33 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  34 import org.opendaylight.yangtools.yang.data.tree.api.DataTreeCandidate;
  35
  36 public class DOMDataTreeChangeListenerTest extends AbstractDatastoreTest {
  37
  38     private InMemoryDOMDataStore domStore;
  39
  40     @Before
  41     public void setUp() {
  42         domStore = new InMemoryDOMDataStore("Mdsal217", MoreExecutors.newDirectExecutorService());
  43         domStore.onModelContextUpdated(SCHEMA_CONTEXT);
  44     }
  45
  46     @Test
  47     public void receiveOnDataInitialEventForEmptyRoot() throws Exception {
  48         final DOMDataTreeChangeListener listener = mock(DOMDataTreeChangeListener.class);
  49         doNothing().when(listener).onInitialData();
  50
  51         domStore.registerTreeChangeListener(YangInstanceIdentifier.of(), listener);
  52         verify(listener, timeout(1000)).onInitialData();
  53     }
  54
  55     @Test
  56     public void receiveOnDataInitialEventForNonExistingData() throws Exception {
  57         final DOMDataTreeChangeListener listener = mock(DOMDataTreeChangeListener.class);
  58         final ArgumentCaptor<List> candidateCapture = ArgumentCaptor.forClass(List.class);
  59         doNothing().when(listener).onInitialData();
  60         doNothing().when(listener).onDataTreeChanged(any());
  61
  62         domStore.registerTreeChangeListener(TestModel.TEST_PATH, listener);
  63         verify(listener, times(1)).onInitialData();
  64
  65         final NormalizedNode testNode = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
  66         DOMStoreReadWriteTransaction writeTx = domStore.newReadWriteTransaction();
  67         assertNotNull(writeTx);
  68         writeTx.write(TestModel.TEST_PATH, testNode);
  69         DOMStoreThreePhaseCommitCohort cohort = writeTx.ready();
  70         cohort.preCommit().get();
  71         cohort.commit().get();
  72
  73         verify(listener, timeout(1000)).onDataTreeChanged(candidateCapture.capture());
  74         final DataTreeCandidate candidate = (DataTreeCandidate) Iterables.getOnlyElement(candidateCapture.getValue());
  75         assertEquals(TestModel.TEST_PATH, candidate.getRootPath());
  76     }
  77
  78     @Test
  79     public void receiveOnDataTreeChangedEventForPreExistingEmptyData() throws Exception {
  80         final DOMDataTreeChangeListener listener = mock(DOMDataTreeChangeListener.class);
  81         final ArgumentCaptor<List> candidateCapture = ArgumentCaptor.forClass(List.class);
  82         doNothing().when(listener).onDataTreeChanged(any());
  83
  84         final NormalizedNode testNode = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
  85
  86         DOMStoreReadWriteTransaction writeTx = domStore.newReadWriteTransaction();
  87         assertNotNull(writeTx);
  88         writeTx.write(TestModel.TEST_PATH, testNode);
  89         DOMStoreThreePhaseCommitCohort cohort = writeTx.ready();
  90         cohort.preCommit().get();
  91         cohort.commit().get();
  92
  93         domStore.registerTreeChangeListener(TestModel.TEST_PATH, listener);
  94
  95         verify(listener, timeout(1000)).onDataTreeChanged(candidateCapture.capture());
  96         final DataTreeCandidate candidate = (DataTreeCandidate) Iterables.getOnlyElement(candidateCapture.getValue());
  97         assertEquals(TestModel.TEST_PATH, candidate.getRootPath());
  98     }
  99
 100     @Test
 101     public void receiveOnDataTreeChangeEventForPreExistingData() throws Exception {
 102         final DOMDataTreeChangeListener listener = mock(DOMDataTreeChangeListener.class);
 103         final ArgumentCaptor<List> candidateCapture = ArgumentCaptor.forClass(List.class);
 104         doNothing().when(listener).onDataTreeChanged(any());
 105
 106         final ContainerNode testNode = Builders.containerBuilder()
 107                 .withNodeIdentifier(new YangInstanceIdentifier.NodeIdentifier(TestModel.TEST_QNAME))
 108                 .addChild(ImmutableNodes.mapNodeBuilder(TestModel.OUTER_LIST_QNAME)
 109                         .addChild(ImmutableNodes.mapEntry(TestModel.OUTER_LIST_QNAME,
 110                                 TestModel.ID_QNAME, 1)).build()).build();
 111         DOMStoreReadWriteTransaction writeTx = domStore.newReadWriteTransaction();
 112         assertNotNull(writeTx);
 113         writeTx.write(TestModel.TEST_PATH, testNode);
 114         DOMStoreThreePhaseCommitCohort cohort = writeTx.ready();
 115         cohort.preCommit().get();
 116         cohort.commit().get();
 117
 118         domStore.registerTreeChangeListener(TestModel.TEST_PATH, listener);
 119
 120         verify(listener, timeout(1000)).onDataTreeChanged(candidateCapture.capture());
 121         final DataTreeCandidate firstItem = (DataTreeCandidate) candidateCapture.getValue().iterator().next();
 122         assertEquals(TestModel.TEST_PATH, firstItem.getRootPath());
 123     }
 124 }