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());
  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());
 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());
 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());
 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());
 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));
 206
 207         inOrder.verify(mockActorContext).executeOperationAsync(
 208                 eq(actorSelection(actorRef)), eqReadData());
 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());
 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());
 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());
 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());
 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());
 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));
 313
 314         inOrder.verify(mockActorContext).executeOperationAsync(
 315                 eq(actorSelection(actorRef)), eqDataExists());
 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());
 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());
 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());
 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());
 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
 734         expectBatchedModificationsReady(actorRef2);
 735
 736         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, WRITE_ONLY);
 737
 738         transactionProxy.write(TestModel.JUNK_PATH, ImmutableNodes.containerNode(TestModel.JUNK_QNAME));
 739         transactionProxy.write(TestModel.TEST_PATH, ImmutableNodes.containerNode(TestModel.TEST_QNAME));
 740
 741         DOMStoreThreePhaseCommitCohort ready = transactionProxy.ready();
 742
 743         assertTrue(ready instanceof ThreePhaseCommitCohortProxy);
 744
 745         verifyCohortFutures((ThreePhaseCommitCohortProxy)ready, actorSelection(actorRef2),
 746                 IllegalArgumentException.class);
 747     }
 748
 749     @Test
 750     public void testGetIdentifier() {
 751         setupActorContextWithInitialCreateTransaction(getSystem(), READ_ONLY);
 752         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_ONLY);
 753
 754         Object id = transactionProxy.getIdentifier();
 755         assertNotNull("getIdentifier returned null", id);
 756         assertTrue("Invalid identifier: " + id, id.toString().startsWith(memberName));
 757     }
 758
 759     @Test
 760     public void testClose() throws Exception{
 761         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_WRITE);
 762
 763         doReturn(readDataReply(null)).when(mockActorContext).executeOperationAsync(
 764                 eq(actorSelection(actorRef)), eqReadData());
 765
 766         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
 767
 768         transactionProxy.read(TestModel.TEST_PATH);
 769
 770         transactionProxy.close();
 771
 772         verify(mockActorContext).sendOperationAsync(
 773                 eq(actorSelection(actorRef)), isA(CloseTransaction.class));
 774     }
 775
 776     private static interface TransactionProxyOperation {
 777         void run(TransactionProxy transactionProxy);
 778     }
 779
 780     private void throttleOperation(TransactionProxyOperation operation) {
 781         throttleOperation(operation, 1, true);
 782     }
 783
 784     private void throttleOperation(TransactionProxyOperation operation, int outstandingOpsLimit, boolean shardFound){
 785         throttleOperation(operation, outstandingOpsLimit, shardFound, TimeUnit.MILLISECONDS.toNanos(
 786                 mockActorContext.getDatastoreContext().getOperationTimeoutInMillis()));
 787     }
 788
 789     private PrimaryShardInfo newPrimaryShardInfo(ActorRef actorRef){
 790         return new PrimaryShardInfo(getSystem().actorSelection(actorRef.path()), DataStoreVersions.CURRENT_VERSION,
 791                 Optional.<DataTree>absent());
 792     }
 793
 794     private PrimaryShardInfo newPrimaryShardInfo(ActorRef actorRef, Optional<DataTree> dataTreeOptional){
 795         return new PrimaryShardInfo(getSystem().actorSelection(actorRef.path()), DataStoreVersions.CURRENT_VERSION,
 796                 dataTreeOptional);
 797     }
 798
 799
 800     private void throttleOperation(TransactionProxyOperation operation, int outstandingOpsLimit, boolean shardFound, long expectedCompletionTime){
 801         ActorSystem actorSystem = getSystem();
 802         ActorRef shardActorRef = actorSystem.actorOf(Props.create(DoNothingActor.class));
 803
 804         // Note that we setting batchedModificationCount to one less than what we need because in TransactionProxy
 805         // we now allow one extra permit to be allowed for ready
 806         doReturn(dataStoreContextBuilder.operationTimeoutInSeconds(2).
 807                 shardBatchedModificationCount(outstandingOpsLimit-1).build()).when(mockActorContext).getDatastoreContext();
 808
 809         doReturn(actorSystem.actorSelection(shardActorRef.path())).
 810                 when(mockActorContext).actorSelection(shardActorRef.path().toString());
 811
 812         if(shardFound) {
 813             doReturn(Futures.successful(newPrimaryShardInfo(shardActorRef))).
 814                     when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 815             doReturn(Futures.successful(newPrimaryShardInfo(shardActorRef))).
 816                     when(mockActorContext).findPrimaryShardAsync(eq("cars"));
 817
 818         } else {
 819             doReturn(Futures.failed(new Exception("not found")))
 820                     .when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 821         }
 822
 823         String actorPath = "akka.tcp://system@127.0.0.1:2550/user/tx-actor";
 824
 825         doReturn(incompleteFuture()).when(mockActorContext).
 826         executeOperationAsync(eq(actorSystem.actorSelection(shardActorRef.path())),
 827                  eqCreateTransaction(memberName, READ_WRITE), any(Timeout.class));
 828
 829         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
 830
 831         long start = System.nanoTime();
 832
 833         operation.run(transactionProxy);
 834
 835         long end = System.nanoTime();
 836
 837         Assert.assertTrue(String.format("Expected elapsed time: %s. Actual: %s",
 838                 expectedCompletionTime, (end-start)),
 839                 ((end - start) > expectedCompletionTime) && ((end - start) < expectedCompletionTime*2));
 840
 841     }
 842
 843     private void completeOperation(TransactionProxyOperation operation){
 844         completeOperation(operation, true);
 845     }
 846
 847     private void completeOperation(TransactionProxyOperation operation, boolean shardFound){
 848         ActorSystem actorSystem = getSystem();
 849         ActorRef shardActorRef = actorSystem.actorOf(Props.create(DoNothingActor.class));
 850
 851         doReturn(actorSystem.actorSelection(shardActorRef.path())).
 852                 when(mockActorContext).actorSelection(shardActorRef.path().toString());
 853
 854         if(shardFound) {
 855             doReturn(Futures.successful(newPrimaryShardInfo(shardActorRef))).
 856                     when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 857         } else {
 858             doReturn(Futures.failed(new PrimaryNotFoundException("test")))
 859                     .when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 860         }
 861
 862         ActorRef txActorRef = actorSystem.actorOf(Props.create(DoNothingActor.class));
 863         String actorPath = txActorRef.path().toString();
 864         CreateTransactionReply createTransactionReply = new CreateTransactionReply(actorPath, "txn-1",
 865                 DataStoreVersions.CURRENT_VERSION);
 866
 867         doReturn(actorSystem.actorSelection(actorPath)).when(mockActorContext).actorSelection(actorPath);
 868
 869         doReturn(Futures.successful(createTransactionReply)).when(mockActorContext).
 870                 executeOperationAsync(eq(actorSystem.actorSelection(shardActorRef.path())),
 871                         eqCreateTransaction(memberName, READ_WRITE), any(Timeout.class));
 872
 873         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
 874
 875         long start = System.nanoTime();
 876
 877         operation.run(transactionProxy);
 878
 879         long end = System.nanoTime();
 880
 881         long expected = TimeUnit.MILLISECONDS.toNanos(mockActorContext.getDatastoreContext().getOperationTimeoutInMillis());
 882         Assert.assertTrue(String.format("Expected elapsed time: %s. Actual: %s",
 883                 expected, (end-start)), (end - start) <= expected);
 884     }
 885
 886     private void completeOperationLocal(TransactionProxyOperation operation, Optional<DataTree> dataTreeOptional){
 887         ActorSystem actorSystem = getSystem();
 888         ActorRef shardActorRef = actorSystem.actorOf(Props.create(DoNothingActor.class));
 889
 890         doReturn(actorSystem.actorSelection(shardActorRef.path())).
 891                 when(mockActorContext).actorSelection(shardActorRef.path().toString());
 892
 893         doReturn(Futures.successful(newPrimaryShardInfo(shardActorRef, dataTreeOptional))).
 894                 when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
 895
 896         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
 897
 898         long start = System.nanoTime();
 899
 900         operation.run(transactionProxy);
 901
 902         long end = System.nanoTime();
 903
 904         long expected = TimeUnit.MILLISECONDS.toNanos(mockActorContext.getDatastoreContext().getOperationTimeoutInMillis());
 905         Assert.assertTrue(String.format("Expected elapsed time: %s. Actual: %s",
 906                 expected, (end-start)), (end - start) <= expected);
 907     }
 908
 909     private static Optional<DataTree> createDataTree(){
 910         DataTree dataTree = mock(DataTree.class);
 911         Optional<DataTree> dataTreeOptional = Optional.of(dataTree);
 912         DataTreeSnapshot dataTreeSnapshot = mock(DataTreeSnapshot.class);
 913         DataTreeModification dataTreeModification = mock(DataTreeModification.class);
 914
 915         doReturn(dataTreeSnapshot).when(dataTree).takeSnapshot();
 916         doReturn(dataTreeModification).when(dataTreeSnapshot).newModification();
 917
 918         return dataTreeOptional;
 919     }
 920
 921     private static Optional<DataTree> createDataTree(NormalizedNode<?, ?> readResponse){
 922         DataTree dataTree = mock(DataTree.class);
 923         Optional<DataTree> dataTreeOptional = Optional.of(dataTree);
 924         DataTreeSnapshot dataTreeSnapshot = mock(DataTreeSnapshot.class);
 925         DataTreeModification dataTreeModification = mock(DataTreeModification.class);
 926
 927         doReturn(dataTreeSnapshot).when(dataTree).takeSnapshot();
 928         doReturn(dataTreeModification).when(dataTreeSnapshot).newModification();
 929         doReturn(Optional.of(readResponse)).when(dataTreeModification).readNode(any(YangInstanceIdentifier.class));
 930
 931         return dataTreeOptional;
 932     }
 933
 934
 935     @Test
 936     public void testWriteCompletionForLocalShard(){
 937         completeOperationLocal(new TransactionProxyOperation() {
 938             @Override
 939             public void run(TransactionProxy transactionProxy) {
 940                 NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 941
 942                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 943
 944                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 945
 946             }
 947         }, createDataTree());
 948     }
 949
 950     @Test
 951     public void testWriteThrottlingWhenShardFound(){
 952         throttleOperation(new TransactionProxyOperation() {
 953             @Override
 954             public void run(TransactionProxy transactionProxy) {
 955                 NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 956
 957                 expectIncompleteBatchedModifications();
 958
 959                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 960
 961                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 962             }
 963         });
 964     }
 965
 966     @Test
 967     public void testWriteThrottlingWhenShardNotFound(){
 968         // Confirm that there is no throttling when the Shard is not found
 969         completeOperation(new TransactionProxyOperation() {
 970             @Override
 971             public void run(TransactionProxy transactionProxy) {
 972                 NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 973
 974                 expectBatchedModifications(2);
 975
 976                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 977
 978                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 979             }
 980         }, false);
 981
 982     }
 983
 984
 985     @Test
 986     public void testWriteCompletion(){
 987         completeOperation(new TransactionProxyOperation() {
 988             @Override
 989             public void run(TransactionProxy transactionProxy) {
 990                 NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
 991
 992                 expectBatchedModifications(2);
 993
 994                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 995
 996                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
 997             }
 998         });
 999     }
1000
1001     @Test
1002     public void testMergeThrottlingWhenShardFound(){
1003         throttleOperation(new TransactionProxyOperation() {
1004             @Override
1005             public void run(TransactionProxy transactionProxy) {
1006                 NormalizedNode<?, ?> nodeToMerge = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1007
1008                 expectIncompleteBatchedModifications();
1009
1010                 transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
1011
1012                 transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
1013             }
1014         });
1015     }
1016
1017     @Test
1018     public void testMergeThrottlingWhenShardNotFound(){
1019         completeOperation(new TransactionProxyOperation() {
1020             @Override
1021             public void run(TransactionProxy transactionProxy) {
1022                 NormalizedNode<?, ?> nodeToMerge = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1023
1024                 expectBatchedModifications(2);
1025
1026                 transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
1027
1028                 transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
1029             }
1030         }, false);
1031     }
1032
1033     @Test
1034     public void testMergeCompletion(){
1035         completeOperation(new TransactionProxyOperation() {
1036             @Override
1037             public void run(TransactionProxy transactionProxy) {
1038                 NormalizedNode<?, ?> nodeToMerge = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1039
1040                 expectBatchedModifications(2);
1041
1042                 transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
1043
1044                 transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
1045             }
1046         });
1047
1048     }
1049
1050     @Test
1051     public void testMergeCompletionForLocalShard(){
1052         completeOperationLocal(new TransactionProxyOperation() {
1053             @Override
1054             public void run(TransactionProxy transactionProxy) {
1055                 NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1056
1057                 transactionProxy.merge(TestModel.TEST_PATH, nodeToWrite);
1058
1059                 transactionProxy.merge(TestModel.TEST_PATH, nodeToWrite);
1060
1061             }
1062         }, createDataTree());
1063     }
1064
1065
1066     @Test
1067     public void testDeleteThrottlingWhenShardFound(){
1068
1069         throttleOperation(new TransactionProxyOperation() {
1070             @Override
1071             public void run(TransactionProxy transactionProxy) {
1072                 expectIncompleteBatchedModifications();
1073
1074                 transactionProxy.delete(TestModel.TEST_PATH);
1075
1076                 transactionProxy.delete(TestModel.TEST_PATH);
1077             }
1078         });
1079     }
1080
1081
1082     @Test
1083     public void testDeleteThrottlingWhenShardNotFound(){
1084
1085         completeOperation(new TransactionProxyOperation() {
1086             @Override
1087             public void run(TransactionProxy transactionProxy) {
1088                 expectBatchedModifications(2);
1089
1090                 transactionProxy.delete(TestModel.TEST_PATH);
1091
1092                 transactionProxy.delete(TestModel.TEST_PATH);
1093             }
1094         }, false);
1095     }
1096
1097     @Test
1098     public void testDeleteCompletionForLocalShard(){
1099         completeOperationLocal(new TransactionProxyOperation() {
1100             @Override
1101             public void run(TransactionProxy transactionProxy) {
1102
1103                 transactionProxy.delete(TestModel.TEST_PATH);
1104
1105                 transactionProxy.delete(TestModel.TEST_PATH);
1106             }
1107         }, createDataTree());
1108
1109     }
1110
1111     @Test
1112     public void testDeleteCompletion(){
1113         completeOperation(new TransactionProxyOperation() {
1114             @Override
1115             public void run(TransactionProxy transactionProxy) {
1116                 expectBatchedModifications(2);
1117
1118                 transactionProxy.delete(TestModel.TEST_PATH);
1119
1120                 transactionProxy.delete(TestModel.TEST_PATH);
1121             }
1122         });
1123
1124     }
1125
1126     @Test
1127     public void testReadThrottlingWhenShardFound(){
1128
1129         throttleOperation(new TransactionProxyOperation() {
1130             @Override
1131             public void run(TransactionProxy transactionProxy) {
1132                 doReturn(incompleteFuture()).when(mockActorContext).executeOperationAsync(
1133                         any(ActorSelection.class), eqReadData());
1134
1135                 transactionProxy.read(TestModel.TEST_PATH);
1136
1137                 transactionProxy.read(TestModel.TEST_PATH);
1138             }
1139         });
1140     }
1141
1142     @Test
1143     public void testReadThrottlingWhenShardNotFound(){
1144
1145         completeOperation(new TransactionProxyOperation() {
1146             @Override
1147             public void run(TransactionProxy transactionProxy) {
1148                 doReturn(incompleteFuture()).when(mockActorContext).executeOperationAsync(
1149                         any(ActorSelection.class), eqReadData());
1150
1151                 transactionProxy.read(TestModel.TEST_PATH);
1152
1153                 transactionProxy.read(TestModel.TEST_PATH);
1154             }
1155         }, false);
1156     }
1157
1158
1159     @Test
1160     public void testReadCompletion(){
1161         completeOperation(new TransactionProxyOperation() {
1162             @Override
1163             public void run(TransactionProxy transactionProxy) {
1164                 NormalizedNode<?, ?> nodeToRead = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1165
1166                 doReturn(readDataReply(nodeToRead)).when(mockActorContext).executeOperationAsync(
1167                         any(ActorSelection.class), eqReadData());
1168
1169                 transactionProxy.read(TestModel.TEST_PATH);
1170
1171                 transactionProxy.read(TestModel.TEST_PATH);
1172             }
1173         });
1174
1175     }
1176
1177     @Test
1178     public void testReadCompletionForLocalShard(){
1179         final NormalizedNode<?, ?> nodeToRead = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1180         completeOperationLocal(new TransactionProxyOperation() {
1181             @Override
1182             public void run(TransactionProxy transactionProxy) {
1183                 transactionProxy.read(TestModel.TEST_PATH);
1184
1185                 transactionProxy.read(TestModel.TEST_PATH);
1186             }
1187         }, createDataTree(nodeToRead));
1188
1189     }
1190
1191     @Test
1192     public void testReadCompletionForLocalShardWhenExceptionOccurs(){
1193         completeOperationLocal(new TransactionProxyOperation() {
1194             @Override
1195             public void run(TransactionProxy transactionProxy) {
1196                 transactionProxy.read(TestModel.TEST_PATH);
1197
1198                 transactionProxy.read(TestModel.TEST_PATH);
1199             }
1200         }, createDataTree());
1201
1202     }
1203
1204     @Test
1205     public void testExistsThrottlingWhenShardFound(){
1206
1207         throttleOperation(new TransactionProxyOperation() {
1208             @Override
1209             public void run(TransactionProxy transactionProxy) {
1210                 doReturn(incompleteFuture()).when(mockActorContext).executeOperationAsync(
1211                         any(ActorSelection.class), eqDataExists());
1212
1213                 transactionProxy.exists(TestModel.TEST_PATH);
1214
1215                 transactionProxy.exists(TestModel.TEST_PATH);
1216             }
1217         });
1218     }
1219
1220     @Test
1221     public void testExistsThrottlingWhenShardNotFound(){
1222
1223         completeOperation(new TransactionProxyOperation() {
1224             @Override
1225             public void run(TransactionProxy transactionProxy) {
1226                 doReturn(incompleteFuture()).when(mockActorContext).executeOperationAsync(
1227                         any(ActorSelection.class), eqDataExists());
1228
1229                 transactionProxy.exists(TestModel.TEST_PATH);
1230
1231                 transactionProxy.exists(TestModel.TEST_PATH);
1232             }
1233         }, false);
1234     }
1235
1236
1237     @Test
1238     public void testExistsCompletion(){
1239         completeOperation(new TransactionProxyOperation() {
1240             @Override
1241             public void run(TransactionProxy transactionProxy) {
1242                 doReturn(dataExistsReply(true)).when(mockActorContext).executeOperationAsync(
1243                         any(ActorSelection.class), eqDataExists());
1244
1245                 transactionProxy.exists(TestModel.TEST_PATH);
1246
1247                 transactionProxy.exists(TestModel.TEST_PATH);
1248             }
1249         });
1250
1251     }
1252
1253     @Test
1254     public void testExistsCompletionForLocalShard(){
1255         final NormalizedNode<?, ?> nodeToRead = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1256         completeOperationLocal(new TransactionProxyOperation() {
1257             @Override
1258             public void run(TransactionProxy transactionProxy) {
1259                 transactionProxy.exists(TestModel.TEST_PATH);
1260
1261                 transactionProxy.exists(TestModel.TEST_PATH);
1262             }
1263         }, createDataTree(nodeToRead));
1264
1265     }
1266
1267     @Test
1268     public void testExistsCompletionForLocalShardWhenExceptionOccurs(){
1269         completeOperationLocal(new TransactionProxyOperation() {
1270             @Override
1271             public void run(TransactionProxy transactionProxy) {
1272                 transactionProxy.exists(TestModel.TEST_PATH);
1273
1274                 transactionProxy.exists(TestModel.TEST_PATH);
1275             }
1276         }, createDataTree());
1277
1278     }
1279     @Test
1280     public void testReadyThrottling(){
1281
1282         throttleOperation(new TransactionProxyOperation() {
1283             @Override
1284             public void run(TransactionProxy transactionProxy) {
1285                 NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1286
1287                 expectBatchedModifications(1);
1288
1289                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
1290
1291                 transactionProxy.ready();
1292             }
1293         });
1294     }
1295
1296     @Test
1297     public void testReadyThrottlingWithTwoTransactionContexts(){
1298         throttleOperation(new TransactionProxyOperation() {
1299             @Override
1300             public void run(TransactionProxy transactionProxy) {
1301                 NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1302                 NormalizedNode<?, ?> carsNode = ImmutableNodes.containerNode(CarsModel.BASE_QNAME);
1303
1304                 expectBatchedModifications(2);
1305
1306                 transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
1307
1308                 // Trying to write to Cars will cause another transaction context to get created
1309                 transactionProxy.write(CarsModel.BASE_PATH, carsNode);
1310
1311                 // Now ready should block for both transaction contexts
1312                 transactionProxy.ready();
1313             }
1314         }, 1, true, TimeUnit.MILLISECONDS.toNanos(mockActorContext.getDatastoreContext().getOperationTimeoutInMillis()) * 2);
1315     }
1316
1317     private void testModificationOperationBatching(TransactionType type) throws Exception {
1318         int shardBatchedModificationCount = 3;
1319         dataStoreContextBuilder.shardBatchedModificationCount(shardBatchedModificationCount);
1320
1321         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), type);
1322
1323         expectBatchedModifications(actorRef, shardBatchedModificationCount);
1324
1325         YangInstanceIdentifier writePath1 = TestModel.TEST_PATH;
1326         NormalizedNode<?, ?> writeNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1327
1328         YangInstanceIdentifier writePath2 = TestModel.OUTER_LIST_PATH;
1329         NormalizedNode<?, ?> writeNode2 = ImmutableNodes.containerNode(TestModel.OUTER_LIST_QNAME);
1330
1331         YangInstanceIdentifier writePath3 = TestModel.INNER_LIST_PATH;
1332         NormalizedNode<?, ?> writeNode3 = ImmutableNodes.containerNode(TestModel.INNER_LIST_QNAME);
1333
1334         YangInstanceIdentifier mergePath1 = TestModel.TEST_PATH;
1335         NormalizedNode<?, ?> mergeNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1336
1337         YangInstanceIdentifier mergePath2 = TestModel.OUTER_LIST_PATH;
1338         NormalizedNode<?, ?> mergeNode2 = ImmutableNodes.containerNode(TestModel.OUTER_LIST_QNAME);
1339
1340         YangInstanceIdentifier mergePath3 = TestModel.INNER_LIST_PATH;
1341         NormalizedNode<?, ?> mergeNode3 = ImmutableNodes.containerNode(TestModel.INNER_LIST_QNAME);
1342
1343         YangInstanceIdentifier deletePath1 = TestModel.TEST_PATH;
1344         YangInstanceIdentifier deletePath2 = TestModel.OUTER_LIST_PATH;
1345
1346         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, type);
1347
1348         transactionProxy.write(writePath1, writeNode1);
1349         transactionProxy.write(writePath2, writeNode2);
1350         transactionProxy.delete(deletePath1);
1351         transactionProxy.merge(mergePath1, mergeNode1);
1352         transactionProxy.merge(mergePath2, mergeNode2);
1353         transactionProxy.write(writePath3, writeNode3);
1354         transactionProxy.merge(mergePath3, mergeNode3);
1355         transactionProxy.delete(deletePath2);
1356
1357         // This sends the last batch.
1358         transactionProxy.ready();
1359
1360         List<BatchedModifications> batchedModifications = captureBatchedModifications(actorRef);
1361         assertEquals("Captured BatchedModifications count", 3, batchedModifications.size());
1362
1363         verifyBatchedModifications(batchedModifications.get(0), false, new WriteModification(writePath1, writeNode1),
1364                 new WriteModification(writePath2, writeNode2), new DeleteModification(deletePath1));
1365
1366         verifyBatchedModifications(batchedModifications.get(1), false, new MergeModification(mergePath1, mergeNode1),
1367                 new MergeModification(mergePath2, mergeNode2), new WriteModification(writePath3, writeNode3));
1368
1369         verifyBatchedModifications(batchedModifications.get(2), true, true,
1370                 new MergeModification(mergePath3, mergeNode3), new DeleteModification(deletePath2));
1371
1372         assertEquals("getTotalMessageCount", 3, batchedModifications.get(2).getTotalMessagesSent());
1373     }
1374
1375     @Test
1376     public void testReadWriteModificationOperationBatching() throws Throwable {
1377         testModificationOperationBatching(READ_WRITE);
1378     }
1379
1380     @Test
1381     public void testWriteOnlyModificationOperationBatching() throws Throwable {
1382         testModificationOperationBatching(WRITE_ONLY);
1383     }
1384
1385     @Test
1386     public void testOptimizedWriteOnlyModificationOperationBatching() throws Throwable {
1387         dataStoreContextBuilder.writeOnlyTransactionOptimizationsEnabled(true);
1388         testModificationOperationBatching(WRITE_ONLY);
1389     }
1390
1391     @Test
1392     public void testModificationOperationBatchingWithInterleavedReads() throws Throwable {
1393
1394         int shardBatchedModificationCount = 10;
1395         dataStoreContextBuilder.shardBatchedModificationCount(shardBatchedModificationCount);
1396
1397         ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_WRITE);
1398
1399         expectBatchedModifications(actorRef, shardBatchedModificationCount);
1400
1401         YangInstanceIdentifier writePath1 = TestModel.TEST_PATH;
1402         NormalizedNode<?, ?> writeNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1403
1404         YangInstanceIdentifier writePath2 = TestModel.OUTER_LIST_PATH;
1405         NormalizedNode<?, ?> writeNode2 = ImmutableNodes.containerNode(TestModel.OUTER_LIST_QNAME);
1406
1407         YangInstanceIdentifier mergePath1 = TestModel.TEST_PATH;
1408         NormalizedNode<?, ?> mergeNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1409
1410         YangInstanceIdentifier mergePath2 = TestModel.INNER_LIST_PATH;
1411         NormalizedNode<?, ?> mergeNode2 = ImmutableNodes.containerNode(TestModel.INNER_LIST_QNAME);
1412
1413         YangInstanceIdentifier deletePath = TestModel.OUTER_LIST_PATH;
1414
1415         doReturn(readDataReply(writeNode2)).when(mockActorContext).executeOperationAsync(
1416                 eq(actorSelection(actorRef)), eqReadData(writePath2));
1417
1418         doReturn(readDataReply(mergeNode2)).when(mockActorContext).executeOperationAsync(
1419                 eq(actorSelection(actorRef)), eqReadData(mergePath2));
1420
1421         doReturn(dataExistsReply(true)).when(mockActorContext).executeOperationAsync(
1422                 eq(actorSelection(actorRef)), eqDataExists());
1423
1424         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_WRITE);
1425
1426         transactionProxy.write(writePath1, writeNode1);
1427         transactionProxy.write(writePath2, writeNode2);
1428
1429         Optional<NormalizedNode<?, ?>> readOptional = transactionProxy.read(writePath2).
1430                 get(5, TimeUnit.SECONDS);
1431
1432         assertEquals("NormalizedNode isPresent", true, readOptional.isPresent());
1433         assertEquals("Response NormalizedNode", writeNode2, readOptional.get());
1434
1435         transactionProxy.merge(mergePath1, mergeNode1);
1436         transactionProxy.merge(mergePath2, mergeNode2);
1437
1438         readOptional = transactionProxy.read(mergePath2).get(5, TimeUnit.SECONDS);
1439
1440         transactionProxy.delete(deletePath);
1441
1442         Boolean exists = transactionProxy.exists(TestModel.TEST_PATH).checkedGet();
1443         assertEquals("Exists response", true, exists);
1444
1445         assertEquals("NormalizedNode isPresent", true, readOptional.isPresent());
1446         assertEquals("Response NormalizedNode", mergeNode2, readOptional.get());
1447
1448         List<BatchedModifications> batchedModifications = captureBatchedModifications(actorRef);
1449         assertEquals("Captured BatchedModifications count", 3, batchedModifications.size());
1450
1451         verifyBatchedModifications(batchedModifications.get(0), false, new WriteModification(writePath1, writeNode1),
1452                 new WriteModification(writePath2, writeNode2));
1453
1454         verifyBatchedModifications(batchedModifications.get(1), false, new MergeModification(mergePath1, mergeNode1),
1455                 new MergeModification(mergePath2, mergeNode2));
1456
1457         verifyBatchedModifications(batchedModifications.get(2), false, new DeleteModification(deletePath));
1458
1459         InOrder inOrder = Mockito.inOrder(mockActorContext);
1460         inOrder.verify(mockActorContext).executeOperationAsync(
1461                 eq(actorSelection(actorRef)), isA(BatchedModifications.class));
1462
1463         inOrder.verify(mockActorContext).executeOperationAsync(
1464                 eq(actorSelection(actorRef)), eqReadData(writePath2));
1465
1466         inOrder.verify(mockActorContext).executeOperationAsync(
1467                 eq(actorSelection(actorRef)), isA(BatchedModifications.class));
1468
1469         inOrder.verify(mockActorContext).executeOperationAsync(
1470                 eq(actorSelection(actorRef)), eqReadData(mergePath2));
1471
1472         inOrder.verify(mockActorContext).executeOperationAsync(
1473                 eq(actorSelection(actorRef)), isA(BatchedModifications.class));
1474
1475         inOrder.verify(mockActorContext).executeOperationAsync(
1476                 eq(actorSelection(actorRef)), eqDataExists());
1477     }
1478
1479     @Test
1480     public void testReadRoot() throws ReadFailedException, InterruptedException, ExecutionException, java.util.concurrent.TimeoutException {
1481
1482         SchemaContext schemaContext = SchemaContextHelper.full();
1483         Configuration configuration = mock(Configuration.class);
1484         doReturn(configuration).when(mockActorContext).getConfiguration();
1485         doReturn(schemaContext).when(mockActorContext).getSchemaContext();
1486         doReturn(Sets.newHashSet("test", "cars")).when(configuration).getAllShardNames();
1487
1488         NormalizedNode<?, ?> expectedNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
1489         NormalizedNode<?, ?> expectedNode2 = ImmutableNodes.containerNode(CarsModel.CARS_QNAME);
1490
1491         setUpReadData("test", NormalizedNodeAggregatorTest.getRootNode(expectedNode1, schemaContext));
1492         setUpReadData("cars", NormalizedNodeAggregatorTest.getRootNode(expectedNode2, schemaContext));
1493
1494         doReturn(memberName).when(mockActorContext).getCurrentMemberName();
1495
1496         doReturn(getSystem().dispatchers().defaultGlobalDispatcher()).when(mockActorContext).getClientDispatcher();
1497
1498         TransactionProxy transactionProxy = new TransactionProxy(mockComponentFactory, READ_ONLY);
1499
1500         Optional<NormalizedNode<?, ?>> readOptional = transactionProxy.read(
1501                 YangInstanceIdentifier.builder().build()).get(5, TimeUnit.SECONDS);
1502
1503         assertEquals("NormalizedNode isPresent", true, readOptional.isPresent());
1504
1505         NormalizedNode<?, ?> normalizedNode = readOptional.get();
1506
1507         assertTrue("Expect value to be a Collection", normalizedNode.getValue() instanceof Collection);
1508
1509         @SuppressWarnings("unchecked")
1510         Collection<NormalizedNode<?,?>> collection = (Collection<NormalizedNode<?,?>>) normalizedNode.getValue();
1511
1512         for(NormalizedNode<?,?> node : collection){
1513             assertTrue("Expected " + node + " to be a ContainerNode", node instanceof ContainerNode);
1514         }
1515
1516         assertTrue("Child with QName = " + TestModel.TEST_QNAME + " not found",
1517                 NormalizedNodeAggregatorTest.findChildWithQName(collection, TestModel.TEST_QNAME) != null);
1518
1519         assertEquals(expectedNode1, NormalizedNodeAggregatorTest.findChildWithQName(collection, TestModel.TEST_QNAME));
1520
1521         assertTrue("Child with QName = " + CarsModel.BASE_QNAME + " not found",
1522                 NormalizedNodeAggregatorTest.findChildWithQName(collection, CarsModel.BASE_QNAME) != null);
1523
1524         assertEquals(expectedNode2, NormalizedNodeAggregatorTest.findChildWithQName(collection, CarsModel.BASE_QNAME));
1525     }
1526
1527
1528     private void setUpReadData(String shardName, NormalizedNode<?, ?> expectedNode) {
1529         ActorSystem actorSystem = getSystem();
1530         ActorRef shardActorRef = getSystem().actorOf(Props.create(DoNothingActor.class));
1531
1532         doReturn(getSystem().actorSelection(shardActorRef.path())).
1533                 when(mockActorContext).actorSelection(shardActorRef.path().toString());
1534
1535         doReturn(primaryShardInfoReply(getSystem(), shardActorRef)).
1536                 when(mockActorContext).findPrimaryShardAsync(eq(shardName));
1537
1538         ActorRef txActorRef = actorSystem.actorOf(Props.create(DoNothingActor.class));
1539
1540         doReturn(actorSystem.actorSelection(txActorRef.path())).
1541                 when(mockActorContext).actorSelection(txActorRef.path().toString());
1542
1543         doReturn(Futures.successful(createTransactionReply(txActorRef, DataStoreVersions.CURRENT_VERSION))).when(mockActorContext).
1544                 executeOperationAsync(eq(actorSystem.actorSelection(shardActorRef.path())),
1545                         eqCreateTransaction(memberName, TransactionType.READ_ONLY), any(Timeout.class));
1546
1547         doReturn(readDataReply(expectedNode)).when(mockActorContext).executeOperationAsync(
1548                 eq(actorSelection(txActorRef)), eqReadData(YangInstanceIdentifier.builder().build()));
1549     }
1550 }