dom/mdsal-dom-spi/src/test/java/org/opendaylight/mdsal/dom/spi/store/SnapshotBackedReadWriteTransactionTest.java

   1 /*
   2  * Copyright (c) 2016 Cisco 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 package org.opendaylight.mdsal.dom.spi.store;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertTrue;
  12 import static org.junit.Assert.fail;
  13 import static org.mockito.ArgumentMatchers.any;
  14 import static org.mockito.Mockito.doReturn;
  15 import static org.mockito.Mockito.doThrow;
  16 import static org.mockito.Mockito.mock;
  17
  18 import java.util.Optional;
  19 import java.util.concurrent.ExecutionException;
  20 import org.junit.Before;
  21 import org.junit.Test;
  22 import org.opendaylight.mdsal.common.api.ReadFailedException;
  23 import org.opendaylight.mdsal.dom.spi.store.SnapshotBackedWriteTransaction.TransactionReadyPrototype;
  24 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  25 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  26 import org.opendaylight.yangtools.yang.data.tree.api.DataTreeModification;
  27 import org.opendaylight.yangtools.yang.data.tree.api.DataTreeSnapshot;
  28
  29 public class SnapshotBackedReadWriteTransactionTest {
  30
  31     private static final DataTreeSnapshot DATA_TREE_SNAPSHOT = mock(DataTreeSnapshot.class);
  32     private static final DataTreeModification DATA_TREE_MODIFICATION = mock(DataTreeModification.class);
  33     private static final TransactionReadyPrototype<Object> TRANSACTION_READY_PROTOTYPE =
  34             mock(TransactionReadyPrototype.class);
  35     private SnapshotBackedReadWriteTransaction<Object> snapshotBackedReadWriteTransaction;
  36
  37     @Before
  38     public void setUp() throws Exception {
  39         doReturn(DATA_TREE_MODIFICATION).when(DATA_TREE_SNAPSHOT).newModification();
  40         snapshotBackedReadWriteTransaction = new SnapshotBackedReadWriteTransaction<>(new Object(), false,
  41                 DATA_TREE_SNAPSHOT, TRANSACTION_READY_PROTOTYPE);
  42     }
  43
  44     @Test
  45     public void basicTest() throws Exception {
  46         final NormalizedNode testNode = mock(NormalizedNode.class);
  47         final Optional<NormalizedNode> optional = Optional.of(testNode);
  48         doReturn("testNode").when(testNode).toString();
  49         doReturn(Optional.of(testNode)).when(DATA_TREE_MODIFICATION).readNode(YangInstanceIdentifier.empty());
  50         assertTrue(snapshotBackedReadWriteTransaction.exists(YangInstanceIdentifier.empty()).get());
  51         assertEquals(optional, snapshotBackedReadWriteTransaction.read(YangInstanceIdentifier.empty()).get());
  52     }
  53
  54     @SuppressWarnings({"checkstyle:IllegalThrows", "checkstyle:avoidHidingCauseException" })
  55     @Test(expected = ReadFailedException.class)
  56     public void readTestWithNullException() throws Throwable {
  57         doReturn(null).when(DATA_TREE_MODIFICATION).readNode(YangInstanceIdentifier.empty());
  58         try {
  59             snapshotBackedReadWriteTransaction.read(YangInstanceIdentifier.empty()).get();
  60             fail("Expected ReadFailedException");
  61         } catch (ExecutionException e) {
  62             throw e.getCause();
  63         }
  64     }
  65
  66     @SuppressWarnings({"checkstyle:IllegalThrows", "checkstyle:avoidHidingCauseException"})
  67     @Test(expected = ReadFailedException.class)
  68     public void readNodeTestWithException() throws Throwable {
  69         doThrow(new NullPointerException("no Node")).when(DATA_TREE_MODIFICATION).readNode(any());
  70         try {
  71             snapshotBackedReadWriteTransaction.read(YangInstanceIdentifier.empty()).get();
  72             fail("Expected ReadFailedException");
  73         } catch (ExecutionException e) {
  74             throw e.getCause();
  75         }
  76     }
  77
  78     @SuppressWarnings({"checkstyle:IllegalThrows", "checkstyle:avoidHidingCauseException"})
  79     @Test(expected = ReadFailedException.class)
  80     public void existsTestWithException() throws Throwable {
  81         doThrow(new NullPointerException("no Node")).when(DATA_TREE_MODIFICATION).readNode(any());
  82         try {
  83             snapshotBackedReadWriteTransaction.exists(YangInstanceIdentifier.empty()).get();
  84             fail("Expected ReadFailedException");
  85         } catch (ExecutionException e) {
  86             throw e.getCause();
  87         }
  88     }
  89 }