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.hamcrest.CoreMatchers.instanceOf;
  11 import static org.hamcrest.MatcherAssert.assertThat;
  12 import static org.junit.Assert.assertEquals;
  13 import static org.junit.Assert.assertSame;
  14 import static org.junit.Assert.assertThrows;
  15 import static org.junit.Assert.assertTrue;
  16 import static org.mockito.ArgumentMatchers.any;
  17 import static org.mockito.Mockito.doReturn;
  18 import static org.mockito.Mockito.doThrow;
  19 import static org.mockito.Mockito.mock;
  20
  21 import com.google.common.util.concurrent.Futures;
  22 import java.util.Optional;
  23 import java.util.concurrent.ExecutionException;
  24 import org.junit.Before;
  25 import org.junit.Test;
  26 import org.opendaylight.mdsal.common.api.ReadFailedException;
  27 import org.opendaylight.mdsal.dom.spi.store.SnapshotBackedWriteTransaction.TransactionReadyPrototype;
  28 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  29 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  30 import org.opendaylight.yangtools.yang.data.tree.api.DataTreeModification;
  31 import org.opendaylight.yangtools.yang.data.tree.api.DataTreeSnapshot;
  32
  33 public class SnapshotBackedReadWriteTransactionTest {
  34
  35     private static final DataTreeSnapshot DATA_TREE_SNAPSHOT = mock(DataTreeSnapshot.class);
  36     private static final DataTreeModification DATA_TREE_MODIFICATION = mock(DataTreeModification.class);
  37     private static final TransactionReadyPrototype<Object> TRANSACTION_READY_PROTOTYPE =
  38             mock(TransactionReadyPrototype.class);
  39     private SnapshotBackedReadWriteTransaction<Object> snapshotBackedReadWriteTransaction;
  40
  41     @Before
  42     public void setUp() {
  43         doReturn(DATA_TREE_MODIFICATION).when(DATA_TREE_SNAPSHOT).newModification();
  44         snapshotBackedReadWriteTransaction = new SnapshotBackedReadWriteTransaction<>(new Object(), false,
  45                 DATA_TREE_SNAPSHOT, TRANSACTION_READY_PROTOTYPE);
  46     }
  47
  48     @Test
  49     public void basicTest() throws Exception {
  50         final NormalizedNode testNode = mock(NormalizedNode.class);
  51         final Optional<NormalizedNode> optional = Optional.of(testNode);
  52         doReturn("testNode").when(testNode).toString();
  53         doReturn(Optional.of(testNode)).when(DATA_TREE_MODIFICATION).readNode(YangInstanceIdentifier.of());
  54         assertTrue(snapshotBackedReadWriteTransaction.exists(YangInstanceIdentifier.of()).get());
  55         assertEquals(optional, snapshotBackedReadWriteTransaction.read(YangInstanceIdentifier.of()).get());
  56     }
  57
  58     @Test
  59     public void readTestWithNullException() {
  60         doReturn(null).when(DATA_TREE_MODIFICATION).readNode(YangInstanceIdentifier.of());
  61
  62         final var future = snapshotBackedReadWriteTransaction.read(YangInstanceIdentifier.of());
  63         final var cause = assertThrows(ExecutionException.class, () -> Futures.getDone(future)).getCause();
  64         assertThat(cause, instanceOf(ReadFailedException.class));
  65         assertEquals("Transaction is closed", cause.getMessage());
  66     }
  67
  68     @Test
  69     public void readNodeTestWithException() {
  70         final var thrown = new NullPointerException("no Node");
  71         doThrow(thrown).when(DATA_TREE_MODIFICATION).readNode(any());
  72
  73         final var future = snapshotBackedReadWriteTransaction.read(YangInstanceIdentifier.of());
  74         final var cause = assertThrows(ExecutionException.class, () -> Futures.getDone(future)).getCause();
  75         assertThat(cause, instanceOf(ReadFailedException.class));
  76         assertEquals("Read failed", cause.getMessage());
  77         assertSame(thrown, cause.getCause());
  78     }
  79
  80     @Test
  81     public void existsTestWithException() {
  82         final var thrown = new NullPointerException("no Node");
  83         doThrow(thrown).when(DATA_TREE_MODIFICATION).readNode(any());
  84
  85         final var future = snapshotBackedReadWriteTransaction.exists(YangInstanceIdentifier.of());
  86         final var cause = assertThrows(ExecutionException.class, () -> Futures.getDone(future)).getCause();
  87         assertThat(cause, instanceOf(ReadFailedException.class));
  88         assertEquals("Read failed", cause.getMessage());
  89         assertSame(thrown, cause.getCause());
  90     }
  91 }