+
+ private static interface TransactionProxyOperation {
+ void run(TransactionProxy transactionProxy);
+ }
+
+ private void throttleOperation(TransactionProxyOperation operation) {
+ throttleOperation(operation, 1, true);
+ }
+
+ private void throttleOperation(TransactionProxyOperation operation, int outstandingOpsLimit, boolean shardFound){
+ ActorSystem actorSystem = getSystem();
+ ActorRef shardActorRef = actorSystem.actorOf(Props.create(DoNothingActor.class));
+
+ doReturn(outstandingOpsLimit).when(mockActorContext).getTransactionOutstandingOperationLimit();
+
+ doReturn(actorSystem.actorSelection(shardActorRef.path())).
+ when(mockActorContext).actorSelection(shardActorRef.path().toString());
+
+ if(shardFound) {
+ doReturn(Futures.successful(actorSystem.actorSelection(shardActorRef.path()))).
+ when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
+ } else {
+ doReturn(Futures.failed(new Exception("not found")))
+ .when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
+ }
+
+ String actorPath = "akka.tcp://system@127.0.0.1:2550/user/tx-actor";
+ CreateTransactionReply createTransactionReply = CreateTransactionReply.newBuilder().
+ setTransactionId("txn-1").setTransactionActorPath(actorPath).
+ setMessageVersion(DataStoreVersions.CURRENT_VERSION).build();
+
+ doReturn(Futures.successful(createTransactionReply)).when(mockActorContext).
+ executeOperationAsync(eq(actorSystem.actorSelection(shardActorRef.path())),
+ eqCreateTransaction(memberName, READ_WRITE));
+
+ doReturn(true).when(mockActorContext).isPathLocal(actorPath);
+
+ TransactionProxy transactionProxy = new TransactionProxy(mockActorContext, READ_WRITE);
+
+ long start = System.nanoTime();
+
+ operation.run(transactionProxy);
+
+ long end = System.nanoTime();
+
+ long expected = TimeUnit.SECONDS.toNanos(mockActorContext.getDatastoreContext().getOperationTimeoutInSeconds());
+ Assert.assertTrue(String.format("Expected elapsed time: %s. Actual: %s",
+ expected, (end-start)), (end - start) > expected);
+
+ }
+
+ private void completeOperation(TransactionProxyOperation operation){
+ completeOperation(operation, true);
+ }
+
+ private void completeOperation(TransactionProxyOperation operation, boolean shardFound){
+ ActorSystem actorSystem = getSystem();
+ ActorRef shardActorRef = actorSystem.actorOf(Props.create(DoNothingActor.class));
+
+ doReturn(1).when(mockActorContext).getTransactionOutstandingOperationLimit();
+
+ doReturn(actorSystem.actorSelection(shardActorRef.path())).
+ when(mockActorContext).actorSelection(shardActorRef.path().toString());
+
+ if(shardFound) {
+ doReturn(Futures.successful(actorSystem.actorSelection(shardActorRef.path()))).
+ when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
+ } else {
+ doReturn(Futures.failed(new Exception("not found")))
+ .when(mockActorContext).findPrimaryShardAsync(eq(DefaultShardStrategy.DEFAULT_SHARD));
+ }
+
+ String actorPath = "akka.tcp://system@127.0.0.1:2550/user/tx-actor";
+ CreateTransactionReply createTransactionReply = CreateTransactionReply.newBuilder().
+ setTransactionId("txn-1").setTransactionActorPath(actorPath).
+ setMessageVersion(DataStoreVersions.CURRENT_VERSION).build();
+
+ doReturn(Futures.successful(createTransactionReply)).when(mockActorContext).
+ executeOperationAsync(eq(actorSystem.actorSelection(shardActorRef.path())),
+ eqCreateTransaction(memberName, READ_WRITE));
+
+ doReturn(true).when(mockActorContext).isPathLocal(actorPath);
+
+ TransactionProxy transactionProxy = new TransactionProxy(mockActorContext, READ_WRITE);
+
+ long start = System.nanoTime();
+
+ operation.run(transactionProxy);
+
+ long end = System.nanoTime();
+
+ long expected = TimeUnit.SECONDS.toNanos(mockActorContext.getDatastoreContext().getOperationTimeoutInSeconds());
+ Assert.assertTrue(String.format("Expected elapsed time: %s. Actual: %s",
+ expected, (end-start)), (end - start) <= expected);
+ }
+
+ public void testWriteThrottling(boolean shardFound){
+
+ throttleOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
+
+ expectBatchedModifications(2);
+
+ transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
+
+ transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
+ }
+ }, 1, shardFound);
+ }
+
+ @Test
+ public void testWriteThrottlingWhenShardFound(){
+ throttleOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
+
+ expectIncompleteBatchedModifications();
+
+ transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
+
+ transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
+ }
+ });
+ }
+
+ @Test
+ public void testWriteThrottlingWhenShardNotFound(){
+ // Confirm that there is no throttling when the Shard is not found
+ completeOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
+
+ expectBatchedModifications(2);
+
+ transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
+
+ transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
+ }
+ }, false);
+
+ }
+
+
+ @Test
+ public void testWriteCompletion(){
+ completeOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
+
+ expectBatchedModifications(2);
+
+ transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
+
+ transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
+ }
+ });
+ }
+
+ @Test
+ public void testMergeThrottlingWhenShardFound(){
+
+ throttleOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ NormalizedNode<?, ?> nodeToMerge = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
+
+ expectIncompleteBatchedModifications();
+
+ transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
+
+ transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
+ }
+ });
+ }
+
+ @Test
+ public void testMergeThrottlingWhenShardNotFound(){
+
+ completeOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ NormalizedNode<?, ?> nodeToMerge = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
+
+ expectBatchedModifications(2);
+
+ transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
+
+ transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
+ }
+ }, false);
+ }
+
+ @Test
+ public void testMergeCompletion(){
+ completeOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ NormalizedNode<?, ?> nodeToMerge = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
+
+ expectBatchedModifications(2);
+
+ transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
+
+ transactionProxy.merge(TestModel.TEST_PATH, nodeToMerge);
+ }
+ });
+
+ }
+
+ @Test
+ public void testDeleteThrottlingWhenShardFound(){
+
+ throttleOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ expectIncompleteBatchedModifications();
+
+ transactionProxy.delete(TestModel.TEST_PATH);
+
+ transactionProxy.delete(TestModel.TEST_PATH);
+ }
+ });
+ }
+
+
+ @Test
+ public void testDeleteThrottlingWhenShardNotFound(){
+
+ completeOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ expectBatchedModifications(2);
+
+ transactionProxy.delete(TestModel.TEST_PATH);
+
+ transactionProxy.delete(TestModel.TEST_PATH);
+ }
+ }, false);
+ }
+
+ @Test
+ public void testDeleteCompletion(){
+ completeOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ expectBatchedModifications(2);
+
+ transactionProxy.delete(TestModel.TEST_PATH);
+
+ transactionProxy.delete(TestModel.TEST_PATH);
+ }
+ });
+
+ }
+
+ @Test
+ public void testReadThrottlingWhenShardFound(){
+
+ throttleOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ doReturn(incompleteFuture()).when(mockActorContext).executeOperationAsync(
+ any(ActorSelection.class), eqReadData());
+
+ transactionProxy.read(TestModel.TEST_PATH);
+
+ transactionProxy.read(TestModel.TEST_PATH);
+ }
+ });
+ }
+
+ @Test
+ public void testReadThrottlingWhenShardNotFound(){
+
+ completeOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ doReturn(incompleteFuture()).when(mockActorContext).executeOperationAsync(
+ any(ActorSelection.class), eqReadData());
+
+ transactionProxy.read(TestModel.TEST_PATH);
+
+ transactionProxy.read(TestModel.TEST_PATH);
+ }
+ }, false);
+ }
+
+
+ @Test
+ public void testReadCompletion(){
+ completeOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ NormalizedNode<?, ?> nodeToRead = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
+
+ doReturn(readDataReply(nodeToRead)).when(mockActorContext).executeOperationAsync(
+ any(ActorSelection.class), eqReadData());
+
+ transactionProxy.read(TestModel.TEST_PATH);
+
+ transactionProxy.read(TestModel.TEST_PATH);
+ }
+ });
+
+ }
+
+ @Test
+ public void testExistsThrottlingWhenShardFound(){
+
+ throttleOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ doReturn(incompleteFuture()).when(mockActorContext).executeOperationAsync(
+ any(ActorSelection.class), eqDataExists());
+
+ transactionProxy.exists(TestModel.TEST_PATH);
+
+ transactionProxy.exists(TestModel.TEST_PATH);
+ }
+ });
+ }
+
+ @Test
+ public void testExistsThrottlingWhenShardNotFound(){
+
+ completeOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ doReturn(incompleteFuture()).when(mockActorContext).executeOperationAsync(
+ any(ActorSelection.class), eqDataExists());
+
+ transactionProxy.exists(TestModel.TEST_PATH);
+
+ transactionProxy.exists(TestModel.TEST_PATH);
+ }
+ }, false);
+ }
+
+
+ @Test
+ public void testExistsCompletion(){
+ completeOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ doReturn(dataExistsReply(true)).when(mockActorContext).executeOperationAsync(
+ any(ActorSelection.class), eqDataExists());
+
+ transactionProxy.exists(TestModel.TEST_PATH);
+
+ transactionProxy.exists(TestModel.TEST_PATH);
+ }
+ });
+
+ }
+
+ @Test
+ public void testReadyThrottling(){
+
+ throttleOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
+
+ expectBatchedModifications(1);
+
+ doReturn(incompleteFuture()).when(mockActorContext).executeOperationAsync(
+ any(ActorSelection.class), any(ReadyTransaction.class));
+
+ transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
+
+ transactionProxy.ready();
+ }
+ });
+ }
+
+ @Test
+ public void testReadyThrottlingWithTwoTransactionContexts(){
+
+ throttleOperation(new TransactionProxyOperation() {
+ @Override
+ public void run(TransactionProxy transactionProxy) {
+ NormalizedNode<?, ?> nodeToWrite = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
+ NormalizedNode<?, ?> carsNode = ImmutableNodes.containerNode(CarsModel.BASE_QNAME);
+
+ expectBatchedModifications(2);
+
+ doReturn(incompleteFuture()).when(mockActorContext).executeOperationAsync(
+ any(ActorSelection.class), any(ReadyTransaction.class));
+
+ transactionProxy.write(TestModel.TEST_PATH, nodeToWrite);
+
+ transactionProxy.write(TestModel.TEST_PATH, carsNode);
+
+ transactionProxy.ready();
+ }
+ }, 2, true);
+ }
+
+ @Test
+ public void testModificationOperationBatching() throws Throwable {
+ int shardBatchedModificationCount = 3;
+ doReturn(dataStoreContextBuilder.shardBatchedModificationCount(shardBatchedModificationCount).build()).
+ when(mockActorContext).getDatastoreContext();
+
+ ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_WRITE);
+
+ expectBatchedModifications(actorRef, shardBatchedModificationCount);
+
+ expectReadyTransaction(actorRef);
+
+ YangInstanceIdentifier writePath1 = TestModel.TEST_PATH;
+ NormalizedNode<?, ?> writeNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
+
+ YangInstanceIdentifier writePath2 = TestModel.OUTER_LIST_PATH;
+ NormalizedNode<?, ?> writeNode2 = ImmutableNodes.containerNode(TestModel.OUTER_LIST_QNAME);
+
+ YangInstanceIdentifier writePath3 = TestModel.INNER_LIST_PATH;
+ NormalizedNode<?, ?> writeNode3 = ImmutableNodes.containerNode(TestModel.INNER_LIST_QNAME);
+
+ YangInstanceIdentifier mergePath1 = TestModel.TEST_PATH;
+ NormalizedNode<?, ?> mergeNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
+
+ YangInstanceIdentifier mergePath2 = TestModel.OUTER_LIST_PATH;
+ NormalizedNode<?, ?> mergeNode2 = ImmutableNodes.containerNode(TestModel.OUTER_LIST_QNAME);
+
+ YangInstanceIdentifier mergePath3 = TestModel.INNER_LIST_PATH;
+ NormalizedNode<?, ?> mergeNode3 = ImmutableNodes.containerNode(TestModel.INNER_LIST_QNAME);
+
+ YangInstanceIdentifier deletePath1 = TestModel.TEST_PATH;
+ YangInstanceIdentifier deletePath2 = TestModel.OUTER_LIST_PATH;
+
+ TransactionProxy transactionProxy = new TransactionProxy(mockActorContext, READ_WRITE);
+
+ transactionProxy.write(writePath1, writeNode1);
+ transactionProxy.write(writePath2, writeNode2);
+ transactionProxy.delete(deletePath1);
+ transactionProxy.merge(mergePath1, mergeNode1);
+ transactionProxy.merge(mergePath2, mergeNode2);
+ transactionProxy.write(writePath3, writeNode3);
+ transactionProxy.merge(mergePath3, mergeNode3);
+ transactionProxy.delete(deletePath2);
+
+ // This sends the last batch.
+ transactionProxy.ready();
+
+ List<BatchedModifications> batchedModifications = captureBatchedModifications(actorRef);
+ assertEquals("Captured BatchedModifications count", 3, batchedModifications.size());
+
+ verifyBatchedModifications(batchedModifications.get(0), new WriteModification(writePath1, writeNode1),
+ new WriteModification(writePath2, writeNode2), new DeleteModification(deletePath1));
+
+ verifyBatchedModifications(batchedModifications.get(1), new MergeModification(mergePath1, mergeNode1),
+ new MergeModification(mergePath2, mergeNode2), new WriteModification(writePath3, writeNode3));
+
+ verifyBatchedModifications(batchedModifications.get(2), new MergeModification(mergePath3, mergeNode3),
+ new DeleteModification(deletePath2));
+
+ verifyRecordingOperationFutures(transactionProxy.getRecordedOperationFutures(),
+ BatchedModificationsReply.class, BatchedModificationsReply.class, BatchedModificationsReply.class);
+ }
+
+ @Test
+ public void testModificationOperationBatchingWithInterleavedReads() throws Throwable {
+ int shardBatchedModificationCount = 10;
+ doReturn(dataStoreContextBuilder.shardBatchedModificationCount(shardBatchedModificationCount).build()).
+ when(mockActorContext).getDatastoreContext();
+
+ ActorRef actorRef = setupActorContextWithInitialCreateTransaction(getSystem(), READ_WRITE);
+
+ expectBatchedModifications(actorRef, shardBatchedModificationCount);
+
+ YangInstanceIdentifier writePath1 = TestModel.TEST_PATH;
+ NormalizedNode<?, ?> writeNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
+
+ YangInstanceIdentifier writePath2 = TestModel.OUTER_LIST_PATH;
+ NormalizedNode<?, ?> writeNode2 = ImmutableNodes.containerNode(TestModel.OUTER_LIST_QNAME);
+
+ YangInstanceIdentifier mergePath1 = TestModel.TEST_PATH;
+ NormalizedNode<?, ?> mergeNode1 = ImmutableNodes.containerNode(TestModel.TEST_QNAME);
+
+ YangInstanceIdentifier mergePath2 = TestModel.INNER_LIST_PATH;
+ NormalizedNode<?, ?> mergeNode2 = ImmutableNodes.containerNode(TestModel.INNER_LIST_QNAME);
+
+ YangInstanceIdentifier deletePath = TestModel.OUTER_LIST_PATH;
+
+ doReturn(readSerializedDataReply(writeNode2)).when(mockActorContext).executeOperationAsync(
+ eq(actorSelection(actorRef)), eqSerializedReadData(writePath2));
+
+ doReturn(readSerializedDataReply(mergeNode2)).when(mockActorContext).executeOperationAsync(
+ eq(actorSelection(actorRef)), eqSerializedReadData(mergePath2));
+
+ doReturn(dataExistsSerializedReply(true)).when(mockActorContext).executeOperationAsync(
+ eq(actorSelection(actorRef)), eqSerializedDataExists());
+
+ TransactionProxy transactionProxy = new TransactionProxy(mockActorContext, READ_WRITE);
+
+ transactionProxy.write(writePath1, writeNode1);
+ transactionProxy.write(writePath2, writeNode2);
+
+ Optional<NormalizedNode<?, ?>> readOptional = transactionProxy.read(writePath2).
+ get(5, TimeUnit.SECONDS);
+
+ assertEquals("NormalizedNode isPresent", true, readOptional.isPresent());
+ assertEquals("Response NormalizedNode", writeNode2, readOptional.get());
+
+ transactionProxy.merge(mergePath1, mergeNode1);
+ transactionProxy.merge(mergePath2, mergeNode2);
+
+ readOptional = transactionProxy.read(mergePath2).get(5, TimeUnit.SECONDS);
+
+ transactionProxy.delete(deletePath);
+
+ Boolean exists = transactionProxy.exists(TestModel.TEST_PATH).checkedGet();
+ assertEquals("Exists response", true, exists);
+
+ assertEquals("NormalizedNode isPresent", true, readOptional.isPresent());
+ assertEquals("Response NormalizedNode", mergeNode2, readOptional.get());
+
+ List<BatchedModifications> batchedModifications = captureBatchedModifications(actorRef);
+ assertEquals("Captured BatchedModifications count", 3, batchedModifications.size());
+
+ verifyBatchedModifications(batchedModifications.get(0), new WriteModification(writePath1, writeNode1),
+ new WriteModification(writePath2, writeNode2));
+
+ verifyBatchedModifications(batchedModifications.get(1), new MergeModification(mergePath1, mergeNode1),
+ new MergeModification(mergePath2, mergeNode2));
+
+ verifyBatchedModifications(batchedModifications.get(2), new DeleteModification(deletePath));
+
+ InOrder inOrder = Mockito.inOrder(mockActorContext);
+ inOrder.verify(mockActorContext).executeOperationAsync(
+ eq(actorSelection(actorRef)), isA(BatchedModifications.class));
+
+ inOrder.verify(mockActorContext).executeOperationAsync(
+ eq(actorSelection(actorRef)), eqSerializedReadData(writePath2));
+
+ inOrder.verify(mockActorContext).executeOperationAsync(
+ eq(actorSelection(actorRef)), isA(BatchedModifications.class));
+
+ inOrder.verify(mockActorContext).executeOperationAsync(
+ eq(actorSelection(actorRef)), eqSerializedReadData(mergePath2));
+
+ inOrder.verify(mockActorContext).executeOperationAsync(
+ eq(actorSelection(actorRef)), isA(BatchedModifications.class));
+
+ inOrder.verify(mockActorContext).executeOperationAsync(
+ eq(actorSelection(actorRef)), eqSerializedDataExists());
+
+ verifyRecordingOperationFutures(transactionProxy.getRecordedOperationFutures(),
+ BatchedModificationsReply.class, BatchedModificationsReply.class, BatchedModificationsReply.class);
+ }
+
+ private List<BatchedModifications> captureBatchedModifications(ActorRef actorRef) {
+ ArgumentCaptor<BatchedModifications> batchedModificationsCaptor =
+ ArgumentCaptor.forClass(BatchedModifications.class);
+ verify(mockActorContext, Mockito.atLeastOnce()).executeOperationAsync(
+ eq(actorSelection(actorRef)), batchedModificationsCaptor.capture());
+
+ List<BatchedModifications> batchedModifications = filterCaptured(
+ batchedModificationsCaptor, BatchedModifications.class);
+ return batchedModifications;
+ }
+
+ private <T> List<T> filterCaptured(ArgumentCaptor<T> captor, Class<T> type) {
+ List<T> captured = new ArrayList<>();
+ for(T c: captor.getAllValues()) {
+ if(type.isInstance(c)) {
+ captured.add(c);
+ }
+ }
+
+ return captured;
+ }
+
+ private void verifyOneBatchedModification(ActorRef actorRef, Modification expected) {
+ List<BatchedModifications> batchedModifications = captureBatchedModifications(actorRef);
+ assertEquals("Captured BatchedModifications count", 1, batchedModifications.size());
+
+ verifyBatchedModifications(batchedModifications.get(0), expected);
+ }
+
+ private void verifyBatchedModifications(Object message, Modification... expected) {
+ assertEquals("Message type", BatchedModifications.class, message.getClass());
+ BatchedModifications batchedModifications = (BatchedModifications)message;
+ assertEquals("BatchedModifications size", expected.length, batchedModifications.getModifications().size());
+ for(int i = 0; i < batchedModifications.getModifications().size(); i++) {
+ Modification actual = batchedModifications.getModifications().get(i);
+ assertEquals("Modification type", expected[i].getClass(), actual.getClass());
+ assertEquals("getPath", ((AbstractModification)expected[i]).getPath(),
+ ((AbstractModification)actual).getPath());
+ if(actual instanceof WriteModification) {
+ assertEquals("getData", ((WriteModification)expected[i]).getData(),
+ ((WriteModification)actual).getData());
+ }
+ }
+ }