opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/TransactionProxyTest.java

   1 /*
   2  * Copyright (c) 2014, 2015 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
   9 package org.opendaylight.controller.cluster.datastore;
  10
  11 import static org.junit.Assert.assertEquals;
  12 import static org.junit.Assert.assertNotNull;
  13 import static org.junit.Assert.assertTrue;
  14 import static org.mockito.Matchers.any;
  15 import static org.mockito.Matchers.anyString;
  16 import static org.mockito.Matchers.eq;
  17 import static org.mockito.Matchers.isA;
  18 import static org.mockito.Mockito.doReturn;
  19 import static org.mockito.Mockito.doThrow;
  20 import static org.mockito.Mockito.mock;
  21 import static org.mockito.Mockito.verify;
  22 import static org.opendaylight.controller.cluster.datastore.TransactionType.READ_ONLY;
  23 import static org.opendaylight.controller.cluster.datastore.TransactionType.READ_WRITE;
  24 import static org.opendaylight.controller.cluster.datastore.TransactionType.WRITE_ONLY;
  25 import akka.actor.ActorRef;
  26 import akka.actor.ActorSelection;
  27 import akka.actor.ActorSystem;
  28 import akka.actor.Props;
  29 import akka.dispatch.Futures;
  30 import akka.util.Timeout;
  31 import com.google.common.base.Optional;
  32 import com.google.common.collect.Sets;
  33 import com.google.common.util.concurrent.CheckedFuture;
  34 import com.google.common.util.concurrent.FutureCallback;
  35 import com.google.common.util.concurrent.Uninterruptibles;
  36 import java.util.Collection;
  37 import java.util.List;
  38 import java.util.concurrent.CountDownLatch;
  39 import java.util.concurrent.ExecutionException;
  40 import java.util.concurrent.TimeUnit;
  41 import java.util.concurrent.atomic.AtomicReference;
  42 import org.junit.Assert;
  43 import org.junit.Test;
  44 import org.mockito.InOrder;
  45 import org.mockito.Mockito;
  46 import org.opendaylight.controller.cluster.datastore.config.Configuration;
  47 import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException;
  48 import org.opendaylight.controller.cluster.datastore.exceptions.NotInitializedException;
  49 import org.opendaylight.controller.cluster.datastore.exceptions.PrimaryNotFoundException;
  50 import org.opendaylight.controller.cluster.datastore.exceptions.TimeoutException;
  51 import org.opendaylight.controller.cluster.datastore.messages.BatchedModifications;
  52 import org.opendaylight.controller.cluster.datastore.messages.CloseTransaction;
  53 import org.opendaylight.controller.cluster.datastore.messages.CommitTransactionReply;
  54 import org.opendaylight.controller.cluster.datastore.messages.CreateTransactionReply;
  55 import org.opendaylight.controller.cluster.datastore.messages.PrimaryShardInfo;
  56 import org.opendaylight.controller.cluster.datastore.modification.DeleteModification;
  57 import org.opendaylight.controller.cluster.datastore.modification.MergeModification;
  58 import org.opendaylight.controller.cluster.datastore.modification.WriteModification;
  59 import org.opendaylight.controller.cluster.datastore.shardstrategy.DefaultShardStrategy;
  60 import org.opendaylight.controller.cluster.datastore.utils.NormalizedNodeAggregatorTest;
  61 import org.opendaylight.controller.cluster.raft.utils.DoNothingActor;
  62 import org.opendaylight.controller.md.cluster.datastore.model.CarsModel;
  63 import org.opendaylight.controller.md.cluster.datastore.model.SchemaContextHelper;
  64 import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
  65 import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
  66 import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
  67 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  68 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  69 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  70 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
  71 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
  72 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeSnapshot;
  73 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  74 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  75 import scala.concurrent.Promise;
  76
  77 @SuppressWarnings("resource")
  78 public class TransactionProxyTest extends AbstractTransactionProxyTest {
  79
  80     @SuppressWarnings("serial")
  81     static class TestException extends RuntimeException {
  82     }
  83
  84     static interface Invoker {
  85         CheckedFuture<?, ReadFailedException> invoke(TransactionProxy proxy) throws Exception;
  86     }
  87
  88     @Test
  89     public void testRead() throws Exception {
  90         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_ONLY);
  91
  92         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_ONLY);
  93
  94         doReturn(readDataReply(null)).when(mockActorContext).executeOperationAsync(
  95                 eq(actorSelection(actorRef)), eqReadData(), any(Timeout.class));
  96
  97         Optional<NormalizedNode<?, ?>> readOptional = transactionProxy.read(
  98                 TestModel.TEST_PATH).get(5, TimeUnit.SECONDS);
  99
 100         assertEquals("NormalizedNode isPresent", false, readOptional.isPresent());
 101
 102         NormalizedNode<?, ?> expectedNode = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 103
 104         doReturn(readDataReply(expectedNode)).when(mockActorContext).executeOperationAsync(
 105                 eq(actorSelection(actorRef)), eqReadData(), any(Timeout.class));
 106
 107         readOptional = transactionProxy.read(TestModel.TEST_PATH).get(5, TimeUnit.SECONDS);
 108
 109         assertEquals("NormalizedNode isPresent", true, readOptional.isPresent());
 110
 111         assertEquals("Response NormalizedNode", expectedNode, readOptional.get());
 112     }
 113
 114     @Test(expected = ReadFailedException.class)
 115     public void testReadWithInvalidReplyMessageType() throws Exception {
 116         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_ONLY);
 117
 118         doReturn(Futures.successful(new Object())).when(mockActorContext).
 119                 executeOperationAsync(eq(actorSelection(actorRef)), eqReadData(), any(Timeout.class));
 120
 121         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_ONLY);
 122
 123         transactionProxy.read(TestModel.TEST_PATH).checkedGet(5, TimeUnit.SECONDS);
 124     }
 125
 126     @Test(expected = TestException.class)
 127     public void testReadWithAsyncRemoteOperatonFailure() throws Throwable {
 128         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_ONLY);
 129
 130         doReturn(Futures.failed(new TestException())).when(mockActorContext).
 131                 executeOperationAsync(eq(actorSelection(actorRef)), eqReadData(), any(Timeout.class));
 132
 133         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_ONLY);
 134
 135         propagateReadFailedExceptionCause(transactionProxy.read(TestModel.TEST_PATH));
 136     }
 137
 138     private void testExceptionOnInitialCreateTransaction(Exception exToThrow, Invoker invoker)
 139             throws Throwable {
 140         ActorRef actorRef = getSystem().actorOf(Props.create(DoNothingActor.class));
 141
 142         if (exToThrow instanceof PrimaryNotFoundException) {
 143             doReturn(Futures.failed(exToThrow)).when(mockActorContext).findPrimaryShardAsync(anyString());
 144         } else {
 145             doReturn(primaryShardInfoReply(getSystem(), actorRef)).
 146                     when(mockActorContext).findPrimaryShardAsync(anyString());
 147         }
 148
 149         doReturn(Futures.failed(exToThrow)).when(mockActorContext).executeOperationAsync(
 150                 any(ActorSelection.class), any(), any(Timeout.class));
 151
 152         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_ONLY);
 153
 154         propagateReadFailedExceptionCause(invoker.invoke(transactionProxy));
 155     }
 156
 157     private void testReadWithExceptionOnInitialCreateTransaction(Exception exToThrow) throws Throwable {
 158         testExceptionOnInitialCreateTransaction(exToThrow, new Invoker() {
 159             @Override
 160             public CheckedFuture<?, ReadFailedException> invoke(TransactionProxy proxy) throws Exception {
 161                 return proxy.read(TestModel.TEST_PATH);
 162             }
 163         });
 164     }
 165
 166     @Test(expected = PrimaryNotFoundException.class)
 167     public void testReadWhenAPrimaryNotFoundExceptionIsThrown() throws Throwable {
 168         testReadWithExceptionOnInitialCreateTransaction(new PrimaryNotFoundException("test"));
 169     }
 170
 171     @Test(expected = TimeoutException.class)
 172     public void testReadWhenATimeoutExceptionIsThrown() throws Throwable {
 173         testReadWithExceptionOnInitialCreateTransaction(new TimeoutException("test",
 174                 new Exception("reason")));
 175     }
 176
 177     @Test(expected = TestException.class)
 178     public void testReadWhenAnyOtherExceptionIsThrown() throws Throwable {
 179         testReadWithExceptionOnInitialCreateTransaction(new TestException());
 180     }
 181
 182     @Test
 183     public void testReadWithPriorRecordingOperationSuccessful() throws Throwable {
 184         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_WRITE);
 185
 186         NormalizedNode<?, ?> expectedNode = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 187
 188         expectBatchedModifications(actorRef, 1);
 189
 190         doReturn(readDataReply(expectedNode)).when(mockActorContext).executeOperationAsync(
 191                 eq(actorSelection(actorRef)), eqReadData(), any(Timeout.class));
 192
 193         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
 194
 195         transactionProxy.write(TestModel.TEST_PATH, expectedNode);
 196
 197         Optional<NormalizedNode<?, ?>> readOptional = transactionProxy.read(
 198                 TestModel.TEST_PATH).get(5, TimeUnit.SECONDS);
 199
 200         assertEquals("NormalizedNode isPresent", true, readOptional.isPresent());
 201         assertEquals("Response NormalizedNode", expectedNode, readOptional.get());
 202
 203         InOrder inOrder = Mockito.inOrder(mockActorContext);
 204         inOrder.verify(mockActorContext).executeOperationAsync(
 205                 eq(actorSelection(actorRef)), isA(BatchedModifications.class), any(Timeout.class));
 206
 207         inOrder.verify(mockActorContext).executeOperationAsync(
 208                 eq(actorSelection(actorRef)), eqReadData(), any(Timeout.class));
 209     }
 210
 211     @Test(expected=IllegalStateException.class)
 212     public void testReadPreConditionCheck() {
 213         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, WRITE_ONLY);
 214         transactionProxy.read(TestModel.TEST_PATH);
 215     }
 216
 217     @Test(expected=IllegalArgumentException.class)
 218     public void testInvalidCreateTransactionReply() throws Throwable {
 219         ActorRef actorRef = getSystem().actorOf(Props.create(DoNothingActor.class));
 220
 221         doReturn(getSystem().actorSelection(actorRef.path())).when(mockActorContext).
 222             actorSelection(actorRef.path().toString());
 223
 224         doReturn(primaryShardInfoReply(getSystem(), actorRef)).
 225             when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 226
 227         doReturn(Futures.successful(new Object())).when(mockActorContext).executeOperationAsync(
 228             eq(getSystem().actorSelection(actorRef.path())), eqCreateTransaction(memberName, READ_ONLY),
 229             any(Timeout.class));
 230
 231         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_ONLY);
 232
 233         propagateReadFailedExceptionCause(transactionProxy.read(TestModel.TEST_PATH));
 234     }
 235
 236     @Test
 237     public void testExists() throws Exception {
 238         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_ONLY);
 239
 240         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_ONLY);
 241
 242         doReturn(dataExistsReply(false)).when(mockActorContext).executeOperationAsync(
 243                 eq(actorSelection(actorRef)), eqDataExists(), any(Timeout.class));
 244
 245         Boolean exists = transactionProxy.exists(TestModel.TEST_PATH).checkedGet();
 246
 247         assertEquals("Exists response", false, exists);
 248
 249         doReturn(dataExistsReply(true)).when(mockActorContext).executeOperationAsync(
 250                 eq(actorSelection(actorRef)), eqDataExists(), any(Timeout.class));
 251
 252         exists = transactionProxy.exists(TestModel.TEST_PATH).checkedGet();
 253
 254         assertEquals("Exists response", true, exists);
 255     }
 256
 257     @Test(expected = PrimaryNotFoundException.class)
 258     public void testExistsWhenAPrimaryNotFoundExceptionIsThrown() throws Throwable {
 259         testExceptionOnInitialCreateTransaction(new PrimaryNotFoundException("test"), new Invoker() {
 260             @Override
 261             public CheckedFuture<?, ReadFailedException> invoke(TransactionProxy proxy) throws Exception {
 262                 return proxy.exists(TestModel.TEST_PATH);
 263             }
 264         });
 265     }
 266
 267     @Test(expected = ReadFailedException.class)
 268     public void testExistsWithInvalidReplyMessageType() throws Exception {
 269         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_ONLY);
 270
 271         doReturn(Futures.successful(new Object())).when(mockActorContext).
 272                 executeOperationAsync(eq(actorSelection(actorRef)), eqDataExists(), any(Timeout.class));
 273
 274         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_ONLY);
 275
 276         transactionProxy.exists(TestModel.TEST_PATH).checkedGet(5, TimeUnit.SECONDS);
 277     }
 278
 279     @Test(expected = TestException.class)
 280     public void testExistsWithAsyncRemoteOperatonFailure() throws Throwable {
 281         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_ONLY);
 282
 283         doReturn(Futures.failed(new TestException())).when(mockActorContext).
 284                 executeOperationAsync(eq(actorSelection(actorRef)), eqDataExists(), any(Timeout.class));
 285
 286         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_ONLY);
 287
 288         propagateReadFailedExceptionCause(transactionProxy.exists(TestModel.TEST_PATH));
 289     }
 290
 291     @Test
 292     public void testExistsWithPriorRecordingOperationSuccessful() throws Throwable {
 293         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_WRITE);
 294
 295         NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 296
 297         expectBatchedModifications(actorRef, 1);
 298
 299         doReturn(dataExistsReply(true)).when(mockActorContext).executeOperationAsync(
 300                 eq(actorSelection(actorRef)), eqDataExists(), any(Timeout.class));
 301
 302         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
 303
 304         transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 305
 306         Boolean exists = transactionProxy.exists(TestModel.TEST_PATH).checkedGet();
 307
 308         assertEquals("Exists response", true, exists);
 309
 310         InOrder inOrder = Mockito.inOrder(mockActorContext);
 311         inOrder.verify(mockActorContext).executeOperationAsync(
 312                 eq(actorSelection(actorRef)), isA(BatchedModifications.class), any(Timeout.class));
 313
 314         inOrder.verify(mockActorContext).executeOperationAsync(
 315                 eq(actorSelection(actorRef)), eqDataExists(), any(Timeout.class));
 316     }
 317
 318     @Test(expected=IllegalStateException.class)
 319     public void testExistsPreConditionCheck() {
 320         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, WRITE_ONLY);
 321         transactionProxy.exists(TestModel.TEST_PATH);
 322     }
 323
 324     @Test
 325     public void testWrite() throws Exception {
 326         dataStoreContextBuilder.shardBatchedModificationCount(1);
 327         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), WRITE_ONLY);
 328
 329         NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 330
 331         expectBatchedModifications(actorRef, 1);
 332
 333         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, WRITE_ONLY);
 334
 335         transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 336
 337         verifyOneBatchedModification(actorRef, new WriteModification(TestModel.TEST_PATH, nodeToWrite), false);
 338     }
 339
 340     @Test
 341     public void testWriteAfterAsyncRead() throws Throwable {
 342         ActorRef actorRef = setupActorContextWithoutInitialCreateTransaction(getSystem(), DefaultShardStrategy.DEFAULT_SHARD);
 343
 344         Promise<Object> createTxPromise = akka.dispatch.Futures.promise();
 345         doReturn(createTxPromise).when(mockActorContext).executeOperationAsync(
 346                 eq(getSystem().actorSelection(actorRef.path())),
 347                 eqCreateTransaction(memberName, READ_WRITE), any(Timeout.class));
 348
 349         doReturn(readDataReply(null)).when(mockActorContext).executeOperationAsync(
 350                 eq(actorSelection(actorRef)), eqReadData(), any(Timeout.class));
 351
 352         expectBatchedModificationsReady(actorRef);
 353
 354         final NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 355
 356         final TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
 357
 358         final CountDownLatch readComplete = new CountDownLatch(1);
 359         final AtomicReference<Throwable> caughtEx = new AtomicReference<>();
 360         com.google.common.util.concurrent.Futures.addCallback(transactionProxy.read(TestModel.TEST_PATH),
 361                 new  FutureCallback<Optional<NormalizedNode<?, ?>>>() {
 362                     @Override
 363                     public void onSuccess(Optional<NormalizedNode<?, ?>> result) {
 364                         try {
 365                             transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 366                         } catch (Exception e) {
 367                             caughtEx.set(e);
 368                         } finally {
 369                             readComplete.countDown();
 370                         }
 371                     }
 372
 373                     @Override
 374                     public void onFailure(Throwable t) {
 375                         caughtEx.set(t);
 376                         readComplete.countDown();
 377                     }
 378                 });
 379
 380         createTxPromise.success(createTransactionReply(actorRef, DataStoreVersions.CURRENT_VERSION));
 381
 382         Uninterruptibles.awaitUninterruptibly(readComplete, 5, TimeUnit.SECONDS);
 383
 384         if(caughtEx.get() != null) {
 385             throw caughtEx.get();
 386         }
 387
 388         // This sends the batched modification.
 389         transactionProxy.ready();
 390
 391         verifyOneBatchedModification(actorRef, new WriteModification(TestModel.TEST_PATH, nodeToWrite), true);
 392     }
 393
 394     @Test(expected=IllegalStateException.class)
 395     public void testWritePreConditionCheck() {
 396         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_ONLY);
 397         transactionProxy.write(TestModel.TEST_PATH, ImmutableNodes.containerNode(TestModel.TEST_QNAME));
 398     }
 399
 400     @Test(expected=IllegalStateException.class)
 401     public void testWriteAfterReadyPreConditionCheck() {
 402         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, WRITE_ONLY);
 403
 404         transactionProxy.ready();
 405
 406         transactionProxy.write(TestModel.TEST_PATH, ImmutableNodes.containerNode(TestModel.TEST_QNAME));
 407     }
 408
 409     @Test
 410     public void testMerge() throws Exception {
 411         dataStoreContextBuilder.shardBatchedModificationCount(1);
 412         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), WRITE_ONLY);
 413
 414         NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 415
 416         expectBatchedModifications(actorRef, 1);
 417
 418         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, WRITE_ONLY);
 419
 420         transactionProxy.merge(TestModel.TEST_PATH, nodeToWrite);
 421
 422         verifyOneBatchedModification(actorRef, new MergeModification(TestModel.TEST_PATH, nodeToWrite), false);
 423     }
 424
 425     @Test
 426     public void testDelete() throws Exception {
 427         dataStoreContextBuilder.shardBatchedModificationCount(1);
 428         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), WRITE_ONLY);
 429
 430         expectBatchedModifications(actorRef, 1);
 431
 432         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, WRITE_ONLY);
 433
 434         transactionProxy.delete(TestModel.TEST_PATH);
 435
 436         verifyOneBatchedModification(actorRef, new DeleteModification(TestModel.TEST_PATH), false);
 437     }
 438
 439     @Test
 440     public void testReadWrite() throws Exception {
 441         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_WRITE);
 442
 443         NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 444
 445         doReturn(readDataReply(null)).when(mockActorContext).executeOperationAsync(
 446                 eq(actorSelection(actorRef)), eqReadData(), any(Timeout.class));
 447
 448         expectBatchedModifications(actorRef, 1);
 449
 450         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
 451
 452         transactionProxy.read(TestModel.TEST_PATH);
 453
 454         transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 455
 456         transactionProxy.read(TestModel.TEST_PATH);
 457
 458         transactionProxy.read(TestModel.TEST_PATH);
 459
 460         List<BatchedModifications> batchedModifications = captureBatchedModifications(actorRef);
 461         assertEquals("Captured BatchedModifications count", 1, batchedModifications.size());
 462
 463         verifyBatchedModifications(batchedModifications.get(0), false,
 464                 new WriteModification(TestModel.TEST_PATH, nodeToWrite));
 465     }
 466
 467     @Test
 468     public void testReadyWithReadWrite() throws Exception {
 469         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_WRITE);
 470
 471         NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 472
 473         doReturn(readDataReply(null)).when(mockActorContext).executeOperationAsync(
 474                 eq(actorSelection(actorRef)), eqReadData(), any(Timeout.class));
 475
 476         expectBatchedModificationsReady(actorRef, true);
 477
 478         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
 479
 480         transactionProxy.read(TestModel.TEST_PATH);
 481
 482         transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 483
 484         DOMStoreThreePhaseCommitCohort ready = transactionProxy.ready();
 485
 486         assertTrue(ready instanceof SingleCommitCohortProxy);
 487
 488         verifyCohortFutures((SingleCommitCohortProxy)ready, new CommitTransactionReply().toSerializable());
 489
 490         List<BatchedModifications> batchedModifications = captureBatchedModifications(actorRef);
 491         assertEquals("Captured BatchedModifications count", 1, batchedModifications.size());
 492
 493         verifyBatchedModifications(batchedModifications.get(0), true, true,
 494                 new WriteModification(TestModel.TEST_PATH, nodeToWrite));
 495
 496         assertEquals("getTotalMessageCount", 1, batchedModifications.get(0).getTotalMessagesSent());
 497     }
 498
 499     @Test
 500     public void testReadyWithNoModifications() throws Exception {
 501         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_WRITE);
 502
 503         doReturn(readDataReply(null)).when(mockActorContext).executeOperationAsync(
 504                 eq(actorSelection(actorRef)), eqReadData(), any(Timeout.class));
 505
 506         expectBatchedModificationsReady(actorRef, true);
 507
 508         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
 509
 510         transactionProxy.read(TestModel.TEST_PATH);
 511
 512         DOMStoreThreePhaseCommitCohort ready = transactionProxy.ready();
 513
 514         assertTrue(ready instanceof SingleCommitCohortProxy);
 515
 516         verifyCohortFutures((SingleCommitCohortProxy)ready, new CommitTransactionReply().toSerializable());
 517
 518         List<BatchedModifications> batchedModifications = captureBatchedModifications(actorRef);
 519         assertEquals("Captured BatchedModifications count", 1, batchedModifications.size());
 520
 521         verifyBatchedModifications(batchedModifications.get(0), true, true);
 522     }
 523
 524     @Test
 525     public void testReadyWithMultipleShardWrites() throws Exception {
 526         ActorRef actorRef1 = setupActorContextWithInitialCreateTransaction(getSystem(), WRITE_ONLY);
 527
 528         ActorRef actorRef2 = setupActorContextWithInitialCreateTransaction(getSystem(), WRITE_ONLY, "junk");
 529
 530         expectBatchedModificationsReady(actorRef1);
 531         expectBatchedModificationsReady(actorRef2);
 532
 533         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, WRITE_ONLY);
 534
 535         transactionProxy.write(TestModel.JUNK_PATH, ImmutableNodes.containerNode(TestModel.JUNK_QNAME));
 536         transactionProxy.write(TestModel.TEST_PATH, ImmutableNodes.containerNode(TestModel.TEST_QNAME));
 537
 538         DOMStoreThreePhaseCommitCohort ready = transactionProxy.ready();
 539
 540         assertTrue(ready instanceof ThreePhaseCommitCohortProxy);
 541
 542         verifyCohortFutures((ThreePhaseCommitCohortProxy)ready, actorSelection(actorRef1),
 543                 actorSelection(actorRef2));
 544     }
 545
 546     @Test
 547     public void testReadyWithWriteOnlyAndLastBatchPending() throws Exception {
 548         dataStoreContextBuilder.writeOnlyTransactionOptimizationsEnabled(true);
 549
 550         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), WRITE_ONLY);
 551
 552         NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 553
 554         expectBatchedModificationsReady(actorRef, true);
 555
 556         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, WRITE_ONLY);
 557
 558         transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 559
 560         DOMStoreThreePhaseCommitCohort ready = transactionProxy.ready();
 561
 562         assertTrue(ready instanceof SingleCommitCohortProxy);
 563
 564         verifyCohortFutures((SingleCommitCohortProxy)ready, new CommitTransactionReply().toSerializable());
 565
 566         List<BatchedModifications> batchedModifications = captureBatchedModifications(actorRef);
 567         assertEquals("Captured BatchedModifications count", 1, batchedModifications.size());
 568
 569         verifyBatchedModifications(batchedModifications.get(0), true, true,
 570                 new WriteModification(TestModel.TEST_PATH, nodeToWrite));
 571     }
 572
 573     @Test
 574     public void testReadyWithWriteOnlyAndLastBatchEmpty() throws Exception {
 575         dataStoreContextBuilder.shardBatchedModificationCount(1).writeOnlyTransactionOptimizationsEnabled(true);
 576         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), WRITE_ONLY);
 577
 578         NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 579
 580         expectBatchedModificationsReady(actorRef, true);
 581
 582         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, WRITE_ONLY);
 583
 584         transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 585
 586         DOMStoreThreePhaseCommitCohort ready = transactionProxy.ready();
 587
 588         assertTrue(ready instanceof SingleCommitCohortProxy);
 589
 590         verifyCohortFutures((SingleCommitCohortProxy)ready, new CommitTransactionReply().toSerializable());
 591
 592         List<BatchedModifications> batchedModifications = captureBatchedModifications(actorRef);
 593         assertEquals("Captured BatchedModifications count", 2, batchedModifications.size());
 594
 595         verifyBatchedModifications(batchedModifications.get(0), false,
 596                 new WriteModification(TestModel.TEST_PATH, nodeToWrite));
 597
 598         verifyBatchedModifications(batchedModifications.get(1), true, true);
 599     }
 600
 601     @Test
 602     public void testReadyWithReplyFailure() throws Exception {
 603         dataStoreContextBuilder.writeOnlyTransactionOptimizationsEnabled(true);
 604
 605         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), WRITE_ONLY);
 606
 607         NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 608
 609         expectFailedBatchedModifications(actorRef);
 610
 611         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, WRITE_ONLY);
 612
 613         transactionProxy.merge(TestModel.TEST_PATH, nodeToWrite);
 614
 615         DOMStoreThreePhaseCommitCohort ready = transactionProxy.ready();
 616
 617         assertTrue(ready instanceof SingleCommitCohortProxy);
 618
 619         verifyCohortFutures((SingleCommitCohortProxy)ready, TestException.class);
 620     }
 621
 622     @Test
 623     public void testReadyWithDebugContextEnabled() throws Exception {
 624         dataStoreContextBuilder.transactionDebugContextEnabled(true);
 625
 626         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_WRITE);
 627
 628         expectBatchedModificationsReady(actorRef, true);
 629
 630         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
 631
 632         transactionProxy.merge(TestModel.TEST_PATH, ImmutableNodes.containerNode(TestModel.TEST_QNAME));
 633
 634         DOMStoreThreePhaseCommitCohort ready = transactionProxy.ready();
 635
 636         assertTrue(ready instanceof DebugThreePhaseCommitCohort);
 637
 638         verifyCohortFutures((DebugThreePhaseCommitCohort)ready, new CommitTransactionReply().toSerializable());
 639     }
 640
 641     @Test
 642     public void testReadyWithLocalTransaction() throws Exception {
 643         ActorRef shardActorRef = getSystem().actorOf(Props.create(DoNothingActor.class));
 644
 645         doReturn(getSystem().actorSelection(shardActorRef.path())).
 646                 when(mockActorContext).actorSelection(shardActorRef.path().toString());
 647
 648         doReturn(Futures.successful(newPrimaryShardInfo(shardActorRef, createDataTree()))).
 649                 when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 650
 651         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, WRITE_ONLY);
 652
 653         expectReadyLocalTransaction(shardActorRef, true);
 654
 655         NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 656         transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 657
 658         DOMStoreThreePhaseCommitCohort ready = transactionProxy.ready();
 659         assertTrue(ready instanceof SingleCommitCohortProxy);
 660         verifyCohortFutures((SingleCommitCohortProxy)ready, new CommitTransactionReply().toSerializable());
 661     }
 662
 663     @Test
 664     public void testReadyWithLocalTransactionWithFailure() throws Exception {
 665         ActorRef shardActorRef = getSystem().actorOf(Props.create(DoNothingActor.class));
 666
 667         doReturn(getSystem().actorSelection(shardActorRef.path())).
 668                 when(mockActorContext).actorSelection(shardActorRef.path().toString());
 669
 670         Optional<DataTree> mockDataTree = createDataTree();
 671         DataTreeModification mockModification = mockDataTree.get().takeSnapshot().newModification();
 672         doThrow(new RuntimeException("mock")).when(mockModification).ready();
 673
 674         doReturn(Futures.successful(newPrimaryShardInfo(shardActorRef, mockDataTree))).
 675                 when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 676
 677         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, WRITE_ONLY);
 678
 679         expectReadyLocalTransaction(shardActorRef, true);
 680
 681         NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 682         transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 683
 684         DOMStoreThreePhaseCommitCohort ready = transactionProxy.ready();
 685         assertTrue(ready instanceof SingleCommitCohortProxy);
 686         verifyCohortFutures((SingleCommitCohortProxy)ready, RuntimeException.class);
 687     }
 688
 689     private void testWriteOnlyTxWithFindPrimaryShardFailure(Exception toThrow) throws Exception {
 690         doReturn(Futures.failed(toThrow)).when(mockActorContext).findPrimaryShardAsync(anyString());
 691
 692         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, WRITE_ONLY);
 693
 694         NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 695
 696         transactionProxy.merge(TestModel.TEST_PATH, nodeToWrite);
 697
 698         transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 699
 700         transactionProxy.delete(TestModel.TEST_PATH);
 701
 702         DOMStoreThreePhaseCommitCohort ready = transactionProxy.ready();
 703
 704         assertTrue(ready instanceof SingleCommitCohortProxy);
 705
 706         verifyCohortFutures((SingleCommitCohortProxy)ready, toThrow.getClass());
 707     }
 708
 709     @Test
 710     public void testWriteOnlyTxWithPrimaryNotFoundException() throws Exception {
 711         testWriteOnlyTxWithFindPrimaryShardFailure(new PrimaryNotFoundException("mock"));
 712     }
 713
 714     @Test
 715     public void testWriteOnlyTxWithNotInitializedException() throws Exception {
 716         testWriteOnlyTxWithFindPrimaryShardFailure(new NotInitializedException("mock"));
 717     }
 718
 719     @Test
 720     public void testWriteOnlyTxWithNoShardLeaderException() throws Exception {
 721         testWriteOnlyTxWithFindPrimaryShardFailure(new NoShardLeaderException("mock"));
 722     }
 723
 724     @Test
 725     public void testReadyWithInvalidReplyMessageType() throws Exception {
 726         dataStoreContextBuilder.writeOnlyTransactionOptimizationsEnabled(true);
 727         ActorRef actorRef1 = setupActorContextWithInitialCreateTransaction(getSystem(), WRITE_ONLY);
 728
 729         ActorRef actorRef2 = setupActorContextWithInitialCreateTransaction(getSystem(), WRITE_ONLY, "junk");
 730
 731         doReturn(Futures.successful(new Object())).when(mockActorContext).
 732                 executeOperationAsync(eq(actorSelection(actorRef1)), isA(BatchedModifications.class),
 733                         any(Timeout.class));
 734
 735         expectBatchedModificationsReady(actorRef2);
 736
 737         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, WRITE_ONLY);
 738
 739         transactionProxy.write(TestModel.JUNK_PATH, ImmutableNodes.containerNode(TestModel.JUNK_QNAME));
 740         transactionProxy.write(TestModel.TEST_PATH, ImmutableNodes.containerNode(TestModel.TEST_QNAME));
 741
 742         DOMStoreThreePhaseCommitCohort ready = transactionProxy.ready();
 743
 744         assertTrue(ready instanceof ThreePhaseCommitCohortProxy);
 745
 746         verifyCohortFutures((ThreePhaseCommitCohortProxy)ready, actorSelection(actorRef2),
 747                 IllegalArgumentException.class);
 748     }
 749
 750     @Test
 751     public void testGetIdentifier() {
 752         setupActorContextWithInitialCreateTransaction(getSystem(), READ_ONLY);
 753         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_ONLY);
 754
 755         Object id = transactionProxy.getIdentifier();
 756         assertNotNull("getIdentifier returned null", id);
 757         assertTrue("Invalid identifier: " + id, id.toString().startsWith(memberName));
 758     }
 759
 760     @Test
 761     public void testClose() throws Exception{
 762         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_WRITE);
 763
 764         doReturn(readDataReply(null)).when(mockActorContext).executeOperationAsync(
 765                 eq(actorSelection(actorRef)), eqReadData(), any(Timeout.class));
 766
 767         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
 768
 769         transactionProxy.read(TestModel.TEST_PATH);
 770
 771         transactionProxy.close();
 772
 773         verify(mockActorContext).sendOperationAsync(
 774                 eq(actorSelection(actorRef)), isA(CloseTransaction.class));
 775     }
 776
 777     private static interface TransactionProxyOperation {
 778         void run(TransactionProxy transactionProxy);
 779     }
 780
 781     private void throttleOperation(TransactionProxyOperation operation) {
 782         throttleOperation(operation, 1, true);
 783     }
 784
 785     private void throttleOperation(TransactionProxyOperation operation, int outstandingOpsLimit, boolean shardFound){
 786         throttleOperation(operation, outstandingOpsLimit, shardFound, TimeUnit.MILLISECONDS.toNanos(
 787                 mockActorContext.getDatastoreContext().getOperationTimeoutInMillis()));
 788     }
 789
 790     private PrimaryShardInfo newPrimaryShardInfo(ActorRef actorRef){
 791         return new PrimaryShardInfo(getSystem().actorSelection(actorRef.path()), DataStoreVersions.CURRENT_VERSION,
 792                 Optional.<DataTree>absent());
 793     }
 794
 795     private PrimaryShardInfo newPrimaryShardInfo(ActorRef actorRef, Optional<DataTree> dataTreeOptional){
 796         return new PrimaryShardInfo(getSystem().actorSelection(actorRef.path()), DataStoreVersions.CURRENT_VERSION,
 797                 dataTreeOptional);
 798     }
 799
 800
 801     private void throttleOperation(TransactionProxyOperation operation, int outstandingOpsLimit, boolean shardFound, long expectedCompletionTime){
 802         ActorSystem actorSystem = getSystem();
 803         ActorRef shardActorRef = actorSystem.actorOf(Props.create(DoNothingActor.class));
 804
 805         // Note that we setting batchedModificationCount to one less than what we need because in TransactionProxy
 806         // we now allow one extra permit to be allowed for ready
 807         doReturn(dataStoreContextBuilder.operationTimeoutInSeconds(2).
 808                 shardBatchedModificationCount(outstandingOpsLimit-1).build()).when(mockActorContext).getDatastoreContext();
 809
 810         doReturn(actorSystem.actorSelection(shardActorRef.path())).
 811                 when(mockActorContext).actorSelection(shardActorRef.path().toString());
 812
 813         if(shardFound) {
 814             doReturn(Futures.successful(newPrimaryShardInfo(shardActorRef))).
 815                     when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 816             doReturn(Futures.successful(newPrimaryShardInfo(shardActorRef))).
 817                     when(mockActorContext).findPrimaryShardAsync(eq("cars"));
 818
 819         } else {
 820             doReturn(Futures.failed(new Exception("not found")))
 821                     .when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 822         }
 823
 824         String actorPath = "akka.tcp://system@127.0.0.1:2550/user/tx-actor";
 825
 826         doReturn(incompleteFuture()).when(mockActorContext).
 827         executeOperationAsync(eq(actorSystem.actorSelection(shardActorRef.path())),
 828                  eqCreateTransaction(memberName, READ_WRITE), any(Timeout.class));
 829
 830         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
 831
 832         long start = System.nanoTime();
 833
 834         operation.run(transactionProxy);
 835
 836         long end = System.nanoTime();
 837
 838         Assert.assertTrue(String.format("Expected elapsed time: %s. Actual: %s",
 839                 expectedCompletionTime, (end-start)),
 840                 ((end - start) > expectedCompletionTime) && ((end - start) < expectedCompletionTime*2));
 841
 842     }
 843
 844     private void completeOperation(TransactionProxyOperation operation){
 845         completeOperation(operation, true);
 846     }
 847
 848     private void completeOperation(TransactionProxyOperation operation, boolean shardFound){
 849         ActorSystem actorSystem = getSystem();
 850         ActorRef shardActorRef = actorSystem.actorOf(Props.create(DoNothingActor.class));
 851
 852         doReturn(actorSystem.actorSelection(shardActorRef.path())).
 853                 when(mockActorContext).actorSelection(shardActorRef.path().toString());
 854
 855         if(shardFound) {
 856             doReturn(Futures.successful(newPrimaryShardInfo(shardActorRef))).
 857                     when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 858         } else {
 859             doReturn(Futures.failed(new PrimaryNotFoundException("test")))
 860                     .when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 861         }
 862
 863         ActorRef txActorRef = actorSystem.actorOf(Props.create(DoNothingActor.class));
 864         String actorPath = txActorRef.path().toString();
 865         CreateTransactionReply createTransactionReply = new CreateTransactionReply(actorPath, "txn-1",
 866                 DataStoreVersions.CURRENT_VERSION);
 867
 868         doReturn(actorSystem.actorSelection(actorPath)).when(mockActorContext).actorSelection(actorPath);
 869
 870         doReturn(Futures.successful(createTransactionReply)).when(mockActorContext).
 871                 executeOperationAsync(eq(actorSystem.actorSelection(shardActorRef.path())),
 872                         eqCreateTransaction(memberName, READ_WRITE), any(Timeout.class));
 873
 874         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
 875
 876         long start = System.nanoTime();
 877
 878         operation.run(transactionProxy);
 879
 880         long end = System.nanoTime();
 881
 882         long expected = TimeUnit.MILLISECONDS.toNanos(mockActorContext.getDatastoreContext().getOperationTimeoutInMillis());
 883         Assert.assertTrue(String.format("Expected elapsed time: %s. Actual: %s",
 884                 expected, (end-start)), (end - start) <= expected);
 885     }
 886
 887     private void completeOperationLocal(TransactionProxyOperation operation, Optional<DataTree> dataTreeOptional){
 888         ActorSystem actorSystem = getSystem();
 889         ActorRef shardActorRef = actorSystem.actorOf(Props.create(DoNothingActor.class));
 890
 891         doReturn(actorSystem.actorSelection(shardActorRef.path())).
 892                 when(mockActorContext).actorSelection(shardActorRef.path().toString());
 893
 894         doReturn(Futures.successful(newPrimaryShardInfo(shardActorRef, dataTreeOptional))).
 895                 when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 896
 897         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
 898
 899         long start = System.nanoTime();
 900
 901         operation.run(transactionProxy);
 902
 903         long end = System.nanoTime();
 904
 905         long expected = TimeUnit.MILLISECONDS.toNanos(mockActorContext.getDatastoreContext().getOperationTimeoutInMillis());
 906         Assert.assertTrue(String.format("Expected elapsed time: %s. Actual: %s",
 907                 expected, (end-start)), (end - start) <= expected);
 908     }
 909
 910     private static Optional<DataTree> createDataTree(){
 911         DataTree dataTree = mock(DataTree.class);
 912         Optional<DataTree> dataTreeOptional = Optional.of(dataTree);
 913         DataTreeSnapshot dataTreeSnapshot = mock(DataTreeSnapshot.class);
 914         DataTreeModification dataTreeModification = mock(DataTreeModification.class);
 915
 916         doReturn(dataTreeSnapshot).when(dataTree).takeSnapshot();
 917         doReturn(dataTreeModification).when(dataTreeSnapshot).newModification();
 918
 919         return dataTreeOptional;
 920     }
 921
 922     private static Optional<DataTree> createDataTree(NormalizedNode<?, ?> readResponse){
 923         DataTree dataTree = mock(DataTree.class);
 924         Optional<DataTree> dataTreeOptional = Optional.of(dataTree);
 925         DataTreeSnapshot dataTreeSnapshot = mock(DataTreeSnapshot.class);
 926         DataTreeModification dataTreeModification = mock(DataTreeModification.class);
 927
 928         doReturn(dataTreeSnapshot).when(dataTree).takeSnapshot();
 929         doReturn(dataTreeModification).when(dataTreeSnapshot).newModification();
 930         doReturn(Optional.of(readResponse)).when(dataTreeModification).readNode(any(YangInstanceIdentifier.class));
 931
 932         return dataTreeOptional;
 933     }
 934
 935
 936     @Test
 937     public void testWriteCompletionForLocalShard(){
 938         completeOperationLocal(new TransactionProxyOperation() {
 939             @Override
 940             public void run(TransactionProxy transactionProxy) {
 941                 NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 942
 943                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 944
 945                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 946
 947             }
 948         }, createDataTree());
 949     }
 950
 951     @Test
 952     public void testWriteThrottlingWhenShardFound(){
 953         throttleOperation(new TransactionProxyOperation() {
 954             @Override
 955             public void run(TransactionProxy transactionProxy) {
 956                 NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 957
 958                 expectIncompleteBatchedModifications();
 959
 960                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 961
 962                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 963             }
 964         });
 965     }
 966
 967     @Test
 968     public void testWriteThrottlingWhenShardNotFound(){
 969         // Confirm that there is no throttling when the Shard is not found
 970         completeOperation(new TransactionProxyOperation() {
 971             @Override
 972             public void run(TransactionProxy transactionProxy) {
 973                 NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 974
 975                 expectBatchedModifications(2);
 976
 977                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 978
 979                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 980             }
 981         }, false);
 982
 983     }
 984
 985
 986     @Test
 987     public void testWriteCompletion(){
 988         completeOperation(new TransactionProxyOperation() {
 989             @Override
 990             public void run(TransactionProxy transactionProxy) {
 991                 NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 992
 993                 expectBatchedModifications(2);
 994
 995                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 996
 997                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 998             }
 999         });
1000     }
1001
1002     @Test
1003     public void testMergeThrottlingWhenShardFound(){
1004         throttleOperation(new TransactionProxyOperation() {
1005             @Override
1006             public void run(TransactionProxy transactionProxy) {
1007                 NormalizedNode<?, ?> nodeToMerge = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1008
1009                 expectIncompleteBatchedModifications();
1010
1011                 transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
1012
1013                 transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
1014             }
1015         });
1016     }
1017
1018     @Test
1019     public void testMergeThrottlingWhenShardNotFound(){
1020         completeOperation(new TransactionProxyOperation() {
1021             @Override
1022             public void run(TransactionProxy transactionProxy) {
1023                 NormalizedNode<?, ?> nodeToMerge = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1024
1025                 expectBatchedModifications(2);
1026
1027                 transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
1028
1029                 transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
1030             }
1031         }, false);
1032     }
1033
1034     @Test
1035     public void testMergeCompletion(){
1036         completeOperation(new TransactionProxyOperation() {
1037             @Override
1038             public void run(TransactionProxy transactionProxy) {
1039                 NormalizedNode<?, ?> nodeToMerge = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1040
1041                 expectBatchedModifications(2);
1042
1043                 transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
1044
1045                 transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
1046             }
1047         });
1048
1049     }
1050
1051     @Test
1052     public void testMergeCompletionForLocalShard(){
1053         completeOperationLocal(new TransactionProxyOperation() {
1054             @Override
1055             public void run(TransactionProxy transactionProxy) {
1056                 NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1057
1058                 transactionProxy.merge(TestModel.TEST_PATH, nodeToWrite);
1059
1060                 transactionProxy.merge(TestModel.TEST_PATH, nodeToWrite);
1061
1062             }
1063         }, createDataTree());
1064     }
1065
1066
1067     @Test
1068     public void testDeleteThrottlingWhenShardFound(){
1069
1070         throttleOperation(new TransactionProxyOperation() {
1071             @Override
1072             public void run(TransactionProxy transactionProxy) {
1073                 expectIncompleteBatchedModifications();
1074
1075                 transactionProxy.delete(TestModel.TEST_PATH);
1076
1077                 transactionProxy.delete(TestModel.TEST_PATH);
1078             }
1079         });
1080     }
1081
1082
1083     @Test
1084     public void testDeleteThrottlingWhenShardNotFound(){
1085
1086         completeOperation(new TransactionProxyOperation() {
1087             @Override
1088             public void run(TransactionProxy transactionProxy) {
1089                 expectBatchedModifications(2);
1090
1091                 transactionProxy.delete(TestModel.TEST_PATH);
1092
1093                 transactionProxy.delete(TestModel.TEST_PATH);
1094             }
1095         }, false);
1096     }
1097
1098     @Test
1099     public void testDeleteCompletionForLocalShard(){
1100         completeOperationLocal(new TransactionProxyOperation() {
1101             @Override
1102             public void run(TransactionProxy transactionProxy) {
1103
1104                 transactionProxy.delete(TestModel.TEST_PATH);
1105
1106                 transactionProxy.delete(TestModel.TEST_PATH);
1107             }
1108         }, createDataTree());
1109
1110     }
1111
1112     @Test
1113     public void testDeleteCompletion(){
1114         completeOperation(new TransactionProxyOperation() {
1115             @Override
1116             public void run(TransactionProxy transactionProxy) {
1117                 expectBatchedModifications(2);
1118
1119                 transactionProxy.delete(TestModel.TEST_PATH);
1120
1121                 transactionProxy.delete(TestModel.TEST_PATH);
1122             }
1123         });
1124
1125     }
1126
1127     @Test
1128     public void testReadThrottlingWhenShardFound(){
1129
1130         throttleOperation(new TransactionProxyOperation() {
1131             @Override
1132             public void run(TransactionProxy transactionProxy) {
1133                 doReturn(incompleteFuture()).when(mockActorContext).executeOperationAsync(
1134                         any(ActorSelection.class), eqReadData());
1135
1136                 transactionProxy.read(TestModel.TEST_PATH);
1137
1138                 transactionProxy.read(TestModel.TEST_PATH);
1139             }
1140         });
1141     }
1142
1143     @Test
1144     public void testReadThrottlingWhenShardNotFound(){
1145
1146         completeOperation(new TransactionProxyOperation() {
1147             @Override
1148             public void run(TransactionProxy transactionProxy) {
1149                 doReturn(incompleteFuture()).when(mockActorContext).executeOperationAsync(
1150                         any(ActorSelection.class), eqReadData());
1151
1152                 transactionProxy.read(TestModel.TEST_PATH);
1153
1154                 transactionProxy.read(TestModel.TEST_PATH);
1155             }
1156         }, false);
1157     }
1158
1159
1160     @Test
1161     public void testReadCompletion(){
1162         completeOperation(new TransactionProxyOperation() {
1163             @Override
1164             public void run(TransactionProxy transactionProxy) {
1165                 NormalizedNode<?, ?> nodeToRead = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1166
1167                 doReturn(readDataReply(nodeToRead)).when(mockActorContext).executeOperationAsync(
1168                         any(ActorSelection.class), eqReadData(), any(Timeout.class));
1169
1170                 transactionProxy.read(TestModel.TEST_PATH);
1171
1172                 transactionProxy.read(TestModel.TEST_PATH);
1173             }
1174         });
1175
1176     }
1177
1178     @Test
1179     public void testReadCompletionForLocalShard(){
1180         final NormalizedNode<?, ?> nodeToRead = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1181         completeOperationLocal(new TransactionProxyOperation() {
1182             @Override
1183             public void run(TransactionProxy transactionProxy) {
1184                 transactionProxy.read(TestModel.TEST_PATH);
1185
1186                 transactionProxy.read(TestModel.TEST_PATH);
1187             }
1188         }, createDataTree(nodeToRead));
1189
1190     }
1191
1192     @Test
1193     public void testReadCompletionForLocalShardWhenExceptionOccurs(){
1194         completeOperationLocal(new TransactionProxyOperation() {
1195             @Override
1196             public void run(TransactionProxy transactionProxy) {
1197                 transactionProxy.read(TestModel.TEST_PATH);
1198
1199                 transactionProxy.read(TestModel.TEST_PATH);
1200             }
1201         }, createDataTree());
1202
1203     }
1204
1205     @Test
1206     public void testExistsThrottlingWhenShardFound(){
1207
1208         throttleOperation(new TransactionProxyOperation() {
1209             @Override
1210             public void run(TransactionProxy transactionProxy) {
1211                 doReturn(incompleteFuture()).when(mockActorContext).executeOperationAsync(
1212                         any(ActorSelection.class), eqDataExists());
1213
1214                 transactionProxy.exists(TestModel.TEST_PATH);
1215
1216                 transactionProxy.exists(TestModel.TEST_PATH);
1217             }
1218         });
1219     }
1220
1221     @Test
1222     public void testExistsThrottlingWhenShardNotFound(){
1223
1224         completeOperation(new TransactionProxyOperation() {
1225             @Override
1226             public void run(TransactionProxy transactionProxy) {
1227                 doReturn(incompleteFuture()).when(mockActorContext).executeOperationAsync(
1228                         any(ActorSelection.class), eqDataExists());
1229
1230                 transactionProxy.exists(TestModel.TEST_PATH);
1231
1232                 transactionProxy.exists(TestModel.TEST_PATH);
1233             }
1234         }, false);
1235     }
1236
1237
1238     @Test
1239     public void testExistsCompletion(){
1240         completeOperation(new TransactionProxyOperation() {
1241             @Override
1242             public void run(TransactionProxy transactionProxy) {
1243                 doReturn(dataExistsReply(true)).when(mockActorContext).executeOperationAsync(
1244                         any(ActorSelection.class), eqDataExists(), any(Timeout.class));
1245
1246                 transactionProxy.exists(TestModel.TEST_PATH);
1247
1248                 transactionProxy.exists(TestModel.TEST_PATH);
1249             }
1250         });
1251
1252     }
1253
1254     @Test
1255     public void testExistsCompletionForLocalShard(){
1256         final NormalizedNode<?, ?> nodeToRead = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1257         completeOperationLocal(new TransactionProxyOperation() {
1258             @Override
1259             public void run(TransactionProxy transactionProxy) {
1260                 transactionProxy.exists(TestModel.TEST_PATH);
1261
1262                 transactionProxy.exists(TestModel.TEST_PATH);
1263             }
1264         }, createDataTree(nodeToRead));
1265
1266     }
1267
1268     @Test
1269     public void testExistsCompletionForLocalShardWhenExceptionOccurs(){
1270         completeOperationLocal(new TransactionProxyOperation() {
1271             @Override
1272             public void run(TransactionProxy transactionProxy) {
1273                 transactionProxy.exists(TestModel.TEST_PATH);
1274
1275                 transactionProxy.exists(TestModel.TEST_PATH);
1276             }
1277         }, createDataTree());
1278
1279     }
1280     @Test
1281     public void testReadyThrottling(){
1282
1283         throttleOperation(new TransactionProxyOperation() {
1284             @Override
1285             public void run(TransactionProxy transactionProxy) {
1286                 NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1287
1288                 expectBatchedModifications(1);
1289
1290                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
1291
1292                 transactionProxy.ready();
1293             }
1294         });
1295     }
1296
1297     @Test
1298     public void testReadyThrottlingWithTwoTransactionContexts(){
1299         throttleOperation(new TransactionProxyOperation() {
1300             @Override
1301             public void run(TransactionProxy transactionProxy) {
1302                 NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1303                 NormalizedNode<?, ?> carsNode = ImmutableNodes.containerNode(CarsModel.BASE_QNAME);
1304
1305                 expectBatchedModifications(2);
1306
1307                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
1308
1309                 // Trying to write to Cars will cause another transaction context to get created
1310                 transactionProxy.write(CarsModel.BASE_PATH, carsNode);
1311
1312                 // Now ready should block for both transaction contexts
1313                 transactionProxy.ready();
1314             }
1315         }, 1, true, TimeUnit.MILLISECONDS.toNanos(mockActorContext.getDatastoreContext().getOperationTimeoutInMillis()) * 2);
1316     }
1317
1318     private void testModificationOperationBatching(TransactionType type) throws Exception {
1319         int shardBatchedModificationCount = 3;
1320         dataStoreContextBuilder.shardBatchedModificationCount(shardBatchedModificationCount);
1321
1322         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), type);
1323
1324         expectBatchedModifications(actorRef, shardBatchedModificationCount);
1325
1326         YangInstanceIdentifier writePath1 = TestModel.TEST_PATH;
1327         NormalizedNode<?, ?> writeNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1328
1329         YangInstanceIdentifier writePath2 = TestModel.OUTER_LIST_PATH;
1330         NormalizedNode<?, ?> writeNode2 = ImmutableNodes.containerNode(TestModel.OUTER_LIST_QNAME);
1331
1332         YangInstanceIdentifier writePath3 = TestModel.INNER_LIST_PATH;
1333         NormalizedNode<?, ?> writeNode3 = ImmutableNodes.containerNode(TestModel.INNER_LIST_QNAME);
1334
1335         YangInstanceIdentifier mergePath1 = TestModel.TEST_PATH;
1336         NormalizedNode<?, ?> mergeNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1337
1338         YangInstanceIdentifier mergePath2 = TestModel.OUTER_LIST_PATH;
1339         NormalizedNode<?, ?> mergeNode2 = ImmutableNodes.containerNode(TestModel.OUTER_LIST_QNAME);
1340
1341         YangInstanceIdentifier mergePath3 = TestModel.INNER_LIST_PATH;
1342         NormalizedNode<?, ?> mergeNode3 = ImmutableNodes.containerNode(TestModel.INNER_LIST_QNAME);
1343
1344         YangInstanceIdentifier deletePath1 = TestModel.TEST_PATH;
1345         YangInstanceIdentifier deletePath2 = TestModel.OUTER_LIST_PATH;
1346
1347         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, type);
1348
1349         transactionProxy.write(writePath1, writeNode1);
1350         transactionProxy.write(writePath2, writeNode2);
1351         transactionProxy.delete(deletePath1);
1352         transactionProxy.merge(mergePath1, mergeNode1);
1353         transactionProxy.merge(mergePath2, mergeNode2);
1354         transactionProxy.write(writePath3, writeNode3);
1355         transactionProxy.merge(mergePath3, mergeNode3);
1356         transactionProxy.delete(deletePath2);
1357
1358         // This sends the last batch.
1359         transactionProxy.ready();
1360
1361         List<BatchedModifications> batchedModifications = captureBatchedModifications(actorRef);
1362         assertEquals("Captured BatchedModifications count", 3, batchedModifications.size());
1363
1364         verifyBatchedModifications(batchedModifications.get(0), false, new WriteModification(writePath1, writeNode1),
1365                 new WriteModification(writePath2, writeNode2), new DeleteModification(deletePath1));
1366
1367         verifyBatchedModifications(batchedModifications.get(1), false, new MergeModification(mergePath1, mergeNode1),
1368                 new MergeModification(mergePath2, mergeNode2), new WriteModification(writePath3, writeNode3));
1369
1370         verifyBatchedModifications(batchedModifications.get(2), true, true,
1371                 new MergeModification(mergePath3, mergeNode3), new DeleteModification(deletePath2));
1372
1373         assertEquals("getTotalMessageCount", 3, batchedModifications.get(2).getTotalMessagesSent());
1374     }
1375
1376     @Test
1377     public void testReadWriteModificationOperationBatching() throws Throwable {
1378         testModificationOperationBatching(READ_WRITE);
1379     }
1380
1381     @Test
1382     public void testWriteOnlyModificationOperationBatching() throws Throwable {
1383         testModificationOperationBatching(WRITE_ONLY);
1384     }
1385
1386     @Test
1387     public void testOptimizedWriteOnlyModificationOperationBatching() throws Throwable {
1388         dataStoreContextBuilder.writeOnlyTransactionOptimizationsEnabled(true);
1389         testModificationOperationBatching(WRITE_ONLY);
1390     }
1391
1392     @Test
1393     public void testModificationOperationBatchingWithInterleavedReads() throws Throwable {
1394
1395         int shardBatchedModificationCount = 10;
1396         dataStoreContextBuilder.shardBatchedModificationCount(shardBatchedModificationCount);
1397
1398         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_WRITE);
1399
1400         expectBatchedModifications(actorRef, shardBatchedModificationCount);
1401
1402         YangInstanceIdentifier writePath1 = TestModel.TEST_PATH;
1403         NormalizedNode<?, ?> writeNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1404
1405         YangInstanceIdentifier writePath2 = TestModel.OUTER_LIST_PATH;
1406         NormalizedNode<?, ?> writeNode2 = ImmutableNodes.containerNode(TestModel.OUTER_LIST_QNAME);
1407
1408         YangInstanceIdentifier mergePath1 = TestModel.TEST_PATH;
1409         NormalizedNode<?, ?> mergeNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1410
1411         YangInstanceIdentifier mergePath2 = TestModel.INNER_LIST_PATH;
1412         NormalizedNode<?, ?> mergeNode2 = ImmutableNodes.containerNode(TestModel.INNER_LIST_QNAME);
1413
1414         YangInstanceIdentifier deletePath = TestModel.OUTER_LIST_PATH;
1415
1416         doReturn(readDataReply(writeNode2)).when(mockActorContext).executeOperationAsync(
1417                 eq(actorSelection(actorRef)), eqReadData(writePath2), any(Timeout.class));
1418
1419         doReturn(readDataReply(mergeNode2)).when(mockActorContext).executeOperationAsync(
1420                 eq(actorSelection(actorRef)), eqReadData(mergePath2), any(Timeout.class));
1421
1422         doReturn(dataExistsReply(true)).when(mockActorContext).executeOperationAsync(
1423                 eq(actorSelection(actorRef)), eqDataExists(), any(Timeout.class));
1424
1425         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
1426
1427         transactionProxy.write(writePath1, writeNode1);
1428         transactionProxy.write(writePath2, writeNode2);
1429
1430         Optional<NormalizedNode<?, ?>> readOptional = transactionProxy.read(writePath2).
1431                 get(5, TimeUnit.SECONDS);
1432
1433         assertEquals("NormalizedNode isPresent", true, readOptional.isPresent());
1434         assertEquals("Response NormalizedNode", writeNode2, readOptional.get());
1435
1436         transactionProxy.merge(mergePath1, mergeNode1);
1437         transactionProxy.merge(mergePath2, mergeNode2);
1438
1439         readOptional = transactionProxy.read(mergePath2).get(5, TimeUnit.SECONDS);
1440
1441         transactionProxy.delete(deletePath);
1442
1443         Boolean exists = transactionProxy.exists(TestModel.TEST_PATH).checkedGet();
1444         assertEquals("Exists response", true, exists);
1445
1446         assertEquals("NormalizedNode isPresent", true, readOptional.isPresent());
1447         assertEquals("Response NormalizedNode", mergeNode2, readOptional.get());
1448
1449         List<BatchedModifications> batchedModifications = captureBatchedModifications(actorRef);
1450         assertEquals("Captured BatchedModifications count", 3, batchedModifications.size());
1451
1452         verifyBatchedModifications(batchedModifications.get(0), false, new WriteModification(writePath1, writeNode1),
1453                 new WriteModification(writePath2, writeNode2));
1454
1455         verifyBatchedModifications(batchedModifications.get(1), false, new MergeModification(mergePath1, mergeNode1),
1456                 new MergeModification(mergePath2, mergeNode2));
1457
1458         verifyBatchedModifications(batchedModifications.get(2), false, new DeleteModification(deletePath));
1459
1460         InOrder inOrder = Mockito.inOrder(mockActorContext);
1461         inOrder.verify(mockActorContext).executeOperationAsync(
1462                 eq(actorSelection(actorRef)), isA(BatchedModifications.class), any(Timeout.class));
1463
1464         inOrder.verify(mockActorContext).executeOperationAsync(
1465                 eq(actorSelection(actorRef)), eqReadData(writePath2), any(Timeout.class));
1466
1467         inOrder.verify(mockActorContext).executeOperationAsync(
1468                 eq(actorSelection(actorRef)), isA(BatchedModifications.class), any(Timeout.class));
1469
1470         inOrder.verify(mockActorContext).executeOperationAsync(
1471                 eq(actorSelection(actorRef)), eqReadData(mergePath2), any(Timeout.class));
1472
1473         inOrder.verify(mockActorContext).executeOperationAsync(
1474                 eq(actorSelection(actorRef)), isA(BatchedModifications.class), any(Timeout.class));
1475
1476         inOrder.verify(mockActorContext).executeOperationAsync(
1477                 eq(actorSelection(actorRef)), eqDataExists(), any(Timeout.class));
1478     }
1479
1480     @Test
1481     public void testReadRoot() throws ReadFailedException, InterruptedException, ExecutionException, java.util.concurrent.TimeoutException {
1482
1483         SchemaContext schemaContext = SchemaContextHelper.full();
1484         Configuration configuration = mock(Configuration.class);
1485         doReturn(configuration).when(mockActorContext).getConfiguration();
1486         doReturn(schemaContext).when(mockActorContext).getSchemaContext();
1487         doReturn(Sets.newHashSet("test", "cars")).when(configuration).getAllShardNames();
1488
1489         NormalizedNode<?, ?> expectedNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1490         NormalizedNode<?, ?> expectedNode2 = ImmutableNodes.containerNode(CarsModel.CARS_QNAME);
1491
1492         setUpReadData("test", NormalizedNodeAggregatorTest.getRootNode(expectedNode1, schemaContext));
1493         setUpReadData("cars", NormalizedNodeAggregatorTest.getRootNode(expectedNode2, schemaContext));
1494
1495         doReturn(memberName).when(mockActorContext).getCurrentMemberName();
1496
1497         doReturn(getSystem().dispatchers().defaultGlobalDispatcher()).when(mockActorContext).getClientDispatcher();
1498
1499         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_ONLY);
1500
1501         Optional<NormalizedNode<?, ?>> readOptional = transactionProxy.read(
1502                 YangInstanceIdentifier.builder().build()).get(5, TimeUnit.SECONDS);
1503
1504         assertEquals("NormalizedNode isPresent", true, readOptional.isPresent());
1505
1506         NormalizedNode<?, ?> normalizedNode = readOptional.get();
1507
1508         assertTrue("Expect value to be a Collection", normalizedNode.getValue() instanceof Collection);
1509
1510         @SuppressWarnings("unchecked")
1511         Collection<NormalizedNode<?,?>> collection = (Collection<NormalizedNode<?,?>>) normalizedNode.getValue();
1512
1513         for(NormalizedNode<?,?> node : collection){
1514             assertTrue("Expected " + node + " to be a ContainerNode", node instanceof ContainerNode);
1515         }
1516
1517         assertTrue("Child with QName = " + TestModel.TEST_QNAME + " not found",
1518                 NormalizedNodeAggregatorTest.findChildWithQName(collection, TestModel.TEST_QNAME) != null);
1519
1520         assertEquals(expectedNode1, NormalizedNodeAggregatorTest.findChildWithQName(collection, TestModel.TEST_QNAME));
1521
1522         assertTrue("Child with QName = " + CarsModel.BASE_QNAME + " not found",
1523                 NormalizedNodeAggregatorTest.findChildWithQName(collection, CarsModel.BASE_QNAME) != null);
1524
1525         assertEquals(expectedNode2, NormalizedNodeAggregatorTest.findChildWithQName(collection, CarsModel.BASE_QNAME));
1526     }
1527
1528
1529     private void setUpReadData(String shardName, NormalizedNode<?, ?> expectedNode) {
1530         ActorSystem actorSystem = getSystem();
1531         ActorRef shardActorRef = getSystem().actorOf(Props.create(DoNothingActor.class));
1532
1533         doReturn(getSystem().actorSelection(shardActorRef.path())).
1534                 when(mockActorContext).actorSelection(shardActorRef.path().toString());
1535
1536         doReturn(primaryShardInfoReply(getSystem(), shardActorRef)).
1537                 when(mockActorContext).findPrimaryShardAsync(eq(shardName));
1538
1539         ActorRef txActorRef = actorSystem.actorOf(Props.create(DoNothingActor.class));
1540
1541         doReturn(actorSystem.actorSelection(txActorRef.path())).
1542                 when(mockActorContext).actorSelection(txActorRef.path().toString());
1543
1544         doReturn(Futures.successful(createTransactionReply(txActorRef, DataStoreVersions.CURRENT_VERSION))).when(mockActorContext).
1545                 executeOperationAsync(eq(actorSystem.actorSelection(shardActorRef.path())),
1546                         eqCreateTransaction(memberName, TransactionType.READ_ONLY), any(Timeout.class));
1547
1548         doReturn(readDataReply(expectedNode)).when(mockActorContext).executeOperationAsync(
1549                 eq(actorSelection(txActorRef)), eqReadData(YangInstanceIdentifier.builder().build()), any(Timeout.class));
1550     }
1551 }