Switch to MD-SAL APIs
[openflowplugin.git] / openflowplugin-impl / src / test / java / org / opendaylight / openflowplugin / impl / statistics / StatisticsGatheringUtilsTest.java
old mode 100644 (file)
new mode 100755 (executable)
index e6d11da..ead35ef
@@ -5,20 +5,22 @@
  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
  * and is available at http://www.eclipse.org/legal/epl-v10.html
  */
-
 package org.opendaylight.openflowplugin.impl.statistics;
 
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
-import com.google.common.base.Optional;
 import com.google.common.collect.Lists;
-import com.google.common.util.concurrent.CheckedFuture;
 import com.google.common.util.concurrent.Futures;
 import com.google.common.util.concurrent.ListenableFuture;
+import com.google.common.util.concurrent.MoreExecutors;
 import java.math.BigInteger;
 import java.util.Collections;
 import java.util.List;
+import java.util.Optional;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeUnit;
 import java.util.concurrent.TimeoutException;
@@ -27,20 +29,18 @@ import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.ArgumentCaptor;
+import org.mockito.ArgumentMatchers;
 import org.mockito.InOrder;
-import org.mockito.Matchers;
 import org.mockito.Mock;
 import org.mockito.Mockito;
-import org.mockito.runners.MockitoJUnitRunner;
-import org.opendaylight.controller.md.sal.binding.api.ReadOnlyTransaction;
-import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
-import org.opendaylight.controller.md.sal.common.api.data.ReadFailedException;
+import org.mockito.junit.MockitoJUnitRunner;
+import org.opendaylight.mdsal.binding.api.ReadTransaction;
+import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
 import org.opendaylight.openflowplugin.api.OFConstants;
 import org.opendaylight.openflowplugin.api.openflow.connection.ConnectionContext;
 import org.opendaylight.openflowplugin.api.openflow.device.DeviceContext;
 import org.opendaylight.openflowplugin.api.openflow.device.DeviceInfo;
 import org.opendaylight.openflowplugin.api.openflow.device.DeviceState;
-import org.opendaylight.openflowplugin.api.openflow.device.TxFacade;
 import org.opendaylight.openflowplugin.api.openflow.registry.flow.DeviceFlowRegistry;
 import org.opendaylight.openflowplugin.api.openflow.registry.flow.FlowDescriptor;
 import org.opendaylight.openflowplugin.api.openflow.registry.flow.FlowRegistryKey;
@@ -48,8 +48,8 @@ import org.opendaylight.openflowplugin.api.openflow.registry.group.DeviceGroupRe
 import org.opendaylight.openflowplugin.api.openflow.registry.meter.DeviceMeterRegistry;
 import org.opendaylight.openflowplugin.api.openflow.statistics.ofpspecific.EventIdentifier;
 import org.opendaylight.openflowplugin.api.openflow.statistics.ofpspecific.StatisticsGatherer;
-import org.opendaylight.openflowplugin.impl.registry.flow.FlowRegistryKeyFactory;
-import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.ConvertorManager;
+import org.opendaylight.openflowplugin.impl.datastore.MultipartWriterProvider;
+import org.opendaylight.openflowplugin.impl.datastore.MultipartWriterProviderFactory;
 import org.opendaylight.openflowplugin.openflow.md.core.sal.convertor.ConvertorManagerFactory;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNode;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.flow.inventory.rev130819.FlowCapableNodeBuilder;
@@ -130,11 +130,11 @@ import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731
 import org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.protocol.rev130731.multipart.reply.multipart.reply.body.multipart.reply.table._case.multipart.reply.table.TableStatsBuilder;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.FlowCapableNodeConnectorStatisticsData;
 import org.opendaylight.yang.gen.v1.urn.opendaylight.port.statistics.rev131214.flow.capable.node.connector.statistics.FlowCapableNodeConnectorStatistics;
+import org.opendaylight.yangtools.util.concurrent.FluentFutures;
 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
 import org.opendaylight.yangtools.yang.binding.KeyedInstanceIdentifier;
 import org.opendaylight.yangtools.yang.common.RpcResultBuilder;
 
-
 @RunWith(MockitoJUnitRunner.class)
 public class StatisticsGatheringUtilsTest {
 
@@ -160,40 +160,35 @@ public class StatisticsGatheringUtilsTest {
     @Mock
     private GetFeaturesOutput features;
     @Mock
-    private ReadOnlyTransaction readTx;
+    private ReadTransaction readTx;
     @Mock
     private ConnectionContext connectionAdapter;
     @Mock
-    private StatisticsGatherer statisticsService;
+    private StatisticsGatherer<MultipartReply> statisticsService;
     @Mock
     private DeviceInfo deviceInfo;
-    @Mock
-    private TxFacade txFacade;
 
-    private SinglePurposeMultipartReplyTranslator singlePurposeMultipartReplyTranslator;
+    private MultipartWriterProvider provider;
 
     @Before
     public void setUp() throws Exception {
-        final ConvertorManager convertorManager = ConvertorManagerFactory.createDefaultManager();
-        singlePurposeMultipartReplyTranslator = new SinglePurposeMultipartReplyTranslator(convertorManager);
-        when(deviceContext.getDeviceState()).thenReturn(deviceState);
         when(deviceContext.getDeviceInfo()).thenReturn(deviceInfo);
         when(deviceContext.getDeviceFlowRegistry()).thenReturn(deviceFlowRegistry);
         when(deviceContext.getDeviceGroupRegistry()).thenReturn(deviceGroupRegistry);
         when(deviceContext.getDeviceMeterRegistry()).thenReturn(deviceMeterRegistry);
-        when(deviceFlowRegistry.retrieveIdForFlow(Matchers.any(FlowRegistryKey.class))).thenReturn(flowDescriptor);
+        when(deviceFlowRegistry.retrieveDescriptor(any(FlowRegistryKey.class))).thenReturn(flowDescriptor);
+        when(deviceContext.getReadTransaction()).thenReturn(readTx);
         when(deviceContext.getReadTransaction()).thenReturn(readTx);
-        when(txFacade.getReadTransaction()).thenReturn(readTx);
         when(deviceContext.getPrimaryConnectionContext()).thenReturn(connectionAdapter);
-        when(connectionAdapter.getNodeId()).thenReturn(DUMMY_NODE_ID);
+        when(deviceContext.isTransactionsEnabled()).thenReturn(Boolean.TRUE);
         when(connectionAdapter.getFeatures()).thenReturn(features);
         when(features.getDatapathId()).thenReturn(BigInteger.ONE);
         when(features.getVersion()).thenReturn(OFConstants.OFP_VERSION_1_3);
-
         when(deviceInfo.getVersion()).thenReturn(OFConstants.OFP_VERSION_1_3);
         when(deviceInfo.getDatapathId()).thenReturn(BigInteger.ONE);
         when(deviceInfo.getNodeInstanceIdentifier()).thenReturn(dummyNodePath);
         when(deviceInfo.getNodeId()).thenReturn(DUMMY_NODE_ID);
+        provider = MultipartWriterProviderFactory.createDefaultProvider(deviceContext);
     }
 
     @Test
@@ -202,14 +197,13 @@ public class StatisticsGatheringUtilsTest {
         final ArgumentCaptor<InstanceIdentifier> flowPath = ArgumentCaptor.forClass(InstanceIdentifier.class);
         final ArgumentCaptor<Flow> flow = ArgumentCaptor.forClass(Flow.class);
 
-        StatisticsGatheringUtils.writeFlowStatistics(prepareFlowStatisticsData(),
-                deviceInfo, deviceContext.getDeviceFlowRegistry(), deviceContext);
+        provider.lookup(MultipartType.OFPMPFLOW).get().write(prepareFlowStatisticsData().iterator().next(), false);
 
         Mockito.verify(deviceContext).writeToTransaction(
                 dataStoreType.capture(), flowPath.capture(), flow.capture());
         Assert.assertEquals(LogicalDatastoreType.OPERATIONAL, dataStoreType.getValue());
         final InstanceIdentifier<FlowCapableNode> flowCapableNodePath = flowPath.getValue();
-        Assert.assertEquals(DUMMY_NODE_ID, flowCapableNodePath.firstKeyOf(Node.class, NodeKey.class).getId());
+        Assert.assertEquals(DUMMY_NODE_ID, flowCapableNodePath.firstKeyOf(Node.class).getId());
         Assert.assertEquals(42, flow.getValue().getTableId().intValue());
     }
 
@@ -249,11 +243,12 @@ public class StatisticsGatheringUtilsTest {
         fireAndCheck(type, statsData);
 
         final InstanceIdentifier<GroupStatistics> groupPath = dummyNodePath.augmentation(FlowCapableNode.class)
-                .child(Group.class, new GroupKey(new org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.GroupId(groupIdValue)))
+                .child(Group.class, new GroupKey(new org.opendaylight.yang.gen.v1.urn
+                        .opendaylight.group.types.rev131018.GroupId(groupIdValue)))
                 .augmentation(NodeGroupStatistics.class)
                 .child(GroupStatistics.class);
-        verify(txFacade).writeToTransaction(Matchers.eq(LogicalDatastoreType.OPERATIONAL),
-                Matchers.eq(groupPath), Matchers.any(GroupStatistics.class));
+        verify(deviceContext).writeToTransaction(eq(LogicalDatastoreType.OPERATIONAL),
+                eq(groupPath), any(GroupStatistics.class));
     }
 
     @Test
@@ -277,14 +272,16 @@ public class StatisticsGatheringUtilsTest {
 
         fireAndCheck(type, statsData);
 
-        final org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.GroupId storedGroupId = new org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.GroupId(groupIdValue);
-        final KeyedInstanceIdentifier<Group, GroupKey> groupPath = dummyNodePath.augmentation(FlowCapableNode.class).child(Group.class, new GroupKey(storedGroupId));
+        final org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.GroupId storedGroupId =
+                new org.opendaylight.yang.gen.v1.urn.opendaylight.group.types.rev131018.GroupId(groupIdValue);
+        final KeyedInstanceIdentifier<Group, GroupKey> groupPath =
+                dummyNodePath.augmentation(FlowCapableNode.class).child(Group.class, new GroupKey(storedGroupId));
 
-        verify(deviceContext, Mockito.never()).addDeleteToTxChain(Matchers.eq(LogicalDatastoreType.OPERATIONAL), Matchers.<InstanceIdentifier<?>> any());
-        verify(deviceGroupRegistry).removeMarked();
+        verify(deviceContext, Mockito.never()).addDeleteToTxChain(eq(LogicalDatastoreType.OPERATIONAL),
+                ArgumentMatchers.<InstanceIdentifier<?>>any());
         verify(deviceGroupRegistry).store(storedGroupId);
-        verify(txFacade).writeToTransaction(
-                Matchers.eq(LogicalDatastoreType.OPERATIONAL), Matchers.eq(groupPath), Matchers.any(Group.class));
+        verify(deviceContext).writeToTransaction(eq(LogicalDatastoreType.OPERATIONAL),
+                                                 eq(groupPath), any(Group.class));
     }
 
     @Test
@@ -314,11 +311,12 @@ public class StatisticsGatheringUtilsTest {
         fireAndCheck(type, statsData);
 
         final InstanceIdentifier<MeterStatistics> meterPath = dummyNodePath.augmentation(FlowCapableNode.class)
-                .child(Meter.class, new MeterKey(new org.opendaylight.yang.gen.v1.urn.opendaylight.meter.types.rev130918.MeterId(meterIdValue)))
+                .child(Meter.class, new MeterKey(new org.opendaylight.yang.gen.v1.urn
+                        .opendaylight.meter.types.rev130918.MeterId(meterIdValue)))
                 .augmentation(NodeMeterStatistics.class)
                 .child(MeterStatistics.class);
-        verify(txFacade).writeToTransaction(Matchers.eq(LogicalDatastoreType.OPERATIONAL),
-                Matchers.eq(meterPath), Matchers.any(MeterStatistics.class));
+        verify(deviceContext).writeToTransaction(eq(LogicalDatastoreType.OPERATIONAL),
+                eq(meterPath), any(MeterStatistics.class));
     }
 
     @Test
@@ -338,13 +336,14 @@ public class StatisticsGatheringUtilsTest {
         fireAndCheck(type, statsData);
 
         final InstanceIdentifier<FlowCapableNodeConnectorStatistics> portPath = dummyNodePath
-                .child(NodeConnector.class, new NodeConnectorKey(new NodeConnectorId("openflow:" + DUMMY_NODE_ID_VALUE + ":11")))
+                .child(NodeConnector.class,
+                        new NodeConnectorKey(new NodeConnectorId("openflow:" + DUMMY_NODE_ID_VALUE + ":11")))
                 .augmentation(FlowCapableNodeConnectorStatisticsData.class)
                 .child(FlowCapableNodeConnectorStatistics.class);
-        verify(txFacade).writeToTransaction(
-                Matchers.eq(LogicalDatastoreType.OPERATIONAL),
-                Matchers.eq(portPath),
-                Matchers.any(FlowCapableNodeConnectorStatistics.class));
+        verify(deviceContext).writeToTransaction(
+                eq(LogicalDatastoreType.OPERATIONAL),
+                eq(portPath),
+                any(FlowCapableNodeConnectorStatistics.class));
     }
 
     @Test
@@ -371,10 +370,10 @@ public class StatisticsGatheringUtilsTest {
                 .child(Table.class, new TableKey((short) 0))
                 .augmentation(FlowTableStatisticsData.class)
                 .child(FlowTableStatistics.class);
-        verify(txFacade).writeToTransaction(
-                Matchers.eq(LogicalDatastoreType.OPERATIONAL),
-                Matchers.eq(tablePath),
-                Matchers.any(FlowTableStatistics.class));
+        verify(deviceContext).writeToTransaction(
+                eq(LogicalDatastoreType.OPERATIONAL),
+                eq(tablePath),
+                any(FlowTableStatistics.class));
     }
 
     @Test
@@ -402,13 +401,14 @@ public class StatisticsGatheringUtilsTest {
         fireAndCheck(type, statsData);
 
         final KeyedInstanceIdentifier<Queue, QueueKey> queuePath = dummyNodePath
-                .child(NodeConnector.class, new NodeConnectorKey(new NodeConnectorId("openflow:" + DUMMY_NODE_ID_VALUE + ":11")))
+                .child(NodeConnector.class,
+                        new NodeConnectorKey(new NodeConnectorId("openflow:" + DUMMY_NODE_ID_VALUE + ":11")))
                 .augmentation(FlowCapableNodeConnector.class)
                 .child(Queue.class, new QueueKey(new QueueId(queueIdValue)));
-        verify(txFacade).writeToTransaction(
-                Matchers.eq(LogicalDatastoreType.OPERATIONAL),
-                Matchers.eq(queuePath),
-                Matchers.any(Queue.class));
+        verify(deviceContext).writeToTransaction(
+                eq(LogicalDatastoreType.OPERATIONAL),
+                eq(queuePath),
+                any(Queue.class));
     }
 
     @Test
@@ -416,17 +416,19 @@ public class StatisticsGatheringUtilsTest {
         final short tableId = 0;
         final MultipartType type = MultipartType.OFPMPFLOW;
 
-        final InstanceIdentifier<FlowCapableNode> nodePath = deviceInfo.getNodeInstanceIdentifier().augmentation(FlowCapableNode.class);
+        final InstanceIdentifier<FlowCapableNode> nodePath =
+                deviceInfo.getNodeInstanceIdentifier().augmentation(FlowCapableNode.class);
         final TableBuilder tableDataBld = new TableBuilder();
         tableDataBld.setId(tableId);
         final FlowCapableNodeBuilder flowNodeBuilder = new FlowCapableNodeBuilder();
         flowNodeBuilder.setTable(Collections.singletonList(tableDataBld.build()));
         final Optional<FlowCapableNode> flowNodeOpt = Optional.of(flowNodeBuilder.build());
-        final CheckedFuture<Optional<FlowCapableNode>, ReadFailedException> flowNodeFuture = Futures.immediateCheckedFuture(flowNodeOpt);
-        when(readTx.read(LogicalDatastoreType.OPERATIONAL, nodePath)).thenReturn(flowNodeFuture);
+        doReturn(FluentFutures.immediateFluentFuture(flowNodeOpt)).when(readTx)
+            .read(LogicalDatastoreType.OPERATIONAL, nodePath);
         when(flowDescriptor.getFlowId()).thenReturn(flowId);
 
-        final org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.grouping.MatchBuilder matchBld =
+        final org.opendaylight.yang.gen.v1.urn
+                .opendaylight.openflow.oxm.rev150225.match.grouping.MatchBuilder matchBld =
                 new org.opendaylight.yang.gen.v1.urn.opendaylight.openflow.oxm.rev150225.match.grouping.MatchBuilder()
                         .setMatchEntry(Collections.<MatchEntry>emptyList());
         final FlowStatsBuilder flowStatsBld = new FlowStatsBuilder()
@@ -454,10 +456,13 @@ public class StatisticsGatheringUtilsTest {
                 .child(Table.class, new TableKey((short) 0));
         final KeyedInstanceIdentifier<Flow, FlowKey> flowPath =  tablePath.child(Flow.class, new FlowKey(flowId));
 
-        verify(deviceContext, Mockito.never()).addDeleteToTxChain(Matchers.eq(LogicalDatastoreType.OPERATIONAL), Matchers.<InstanceIdentifier<?>>any());
+        verify(deviceContext, Mockito.never()).addDeleteToTxChain(eq(LogicalDatastoreType.OPERATIONAL),
+                ArgumentMatchers.<InstanceIdentifier<?>>any());
 
-        final InOrder inOrder = Mockito.inOrder(txFacade);
-        inOrder.verify(txFacade).writeToTransaction(Matchers.eq(LogicalDatastoreType.OPERATIONAL), Matchers.eq(tablePath), Matchers.any(Table.class));
+        final InOrder inOrder = Mockito.inOrder(deviceContext);
+        inOrder.verify(deviceContext).writeToTransaction(eq(LogicalDatastoreType.OPERATIONAL),
+                                                         any(),
+                                                         any());
     }
 
     @Test
@@ -472,7 +477,8 @@ public class StatisticsGatheringUtilsTest {
 
         final MultipartReplyMeterConfigBuilder mpReplyMeterConfigBld = new MultipartReplyMeterConfigBuilder();
         mpReplyMeterConfigBld.setMeterConfig(Lists.newArrayList(meterConfigBld.build()));
-        final MultipartReplyMeterConfigCaseBuilder mpReplyMeterConfigCaseBld = new MultipartReplyMeterConfigCaseBuilder();
+        final MultipartReplyMeterConfigCaseBuilder mpReplyMeterConfigCaseBld =
+                new MultipartReplyMeterConfigCaseBuilder();
         mpReplyMeterConfigCaseBld.setMultipartReplyMeterConfig(mpReplyMeterConfigBld.build());
 
         final MultipartReply meterConfigUpdated = assembleMPReplyMessage(type, mpReplyMeterConfigCaseBld.build());
@@ -484,28 +490,34 @@ public class StatisticsGatheringUtilsTest {
                 new org.opendaylight.yang.gen.v1.urn.opendaylight.meter.types.rev130918.MeterId(meterIdValue);
         final KeyedInstanceIdentifier<Meter, MeterKey> meterPath = dummyNodePath.augmentation(FlowCapableNode.class)
                 .child(Meter.class, new MeterKey(meterId));
-        verify(deviceContext, Mockito.never()).addDeleteToTxChain(Matchers.eq(LogicalDatastoreType.OPERATIONAL), Matchers.<InstanceIdentifier<?>>any());
+        verify(deviceContext, Mockito.never()).addDeleteToTxChain(eq(LogicalDatastoreType.OPERATIONAL),
+                ArgumentMatchers.<InstanceIdentifier<?>>any());
         verify(deviceMeterRegistry).store(meterId);
-        verify(txFacade).writeToTransaction(Matchers.eq(LogicalDatastoreType.OPERATIONAL), Matchers.eq(meterPath), Matchers.any(Meter.class));
+        verify(deviceContext).writeToTransaction(eq(LogicalDatastoreType.OPERATIONAL),
+                                                 eq(meterPath), any(Meter.class));
     }
 
-    private void fireAndCheck(final MultipartType type, final List<MultipartReply> statsData) throws InterruptedException, ExecutionException, TimeoutException {
-        when(statisticsService.getStatisticsOfType(Matchers.any(EventIdentifier.class), Matchers.eq(type)))
+    private void fireAndCheck(final MultipartType type, final List<MultipartReply> statsData)
+            throws InterruptedException, ExecutionException, TimeoutException {
+        when(statisticsService.getStatisticsOfType(any(EventIdentifier.class),eq(type)))
                 .thenReturn(Futures.immediateFuture(RpcResultBuilder.success(statsData).build()));
 
         final ListenableFuture<Boolean> gatherStatisticsResult = StatisticsGatheringUtils.gatherStatistics(
-                statisticsService,
-                deviceInfo,
-                type,
-                txFacade,
-                deviceContext,
-                false,
-                singlePurposeMultipartReplyTranslator);
-        Assert.assertTrue(gatherStatisticsResult.get(1, TimeUnit.SECONDS).booleanValue());
-        verify(txFacade).submitTransaction();
+            statisticsService,
+            deviceInfo,
+            type,
+            deviceContext,
+            deviceContext,
+            ConvertorManagerFactory.createDefaultManager(),
+            provider,
+            MoreExecutors.newDirectExecutorService());
+
+        Assert.assertTrue(gatherStatisticsResult.get(1, TimeUnit.SECONDS));
+        verify(deviceContext).submitTransaction();
     }
 
-    private static MultipartReplyMessage assembleMPReplyMessage(final MultipartType type, final MultipartReplyBody mpReplyGroupCaseBld) {
+    private static MultipartReplyMessage assembleMPReplyMessage(final MultipartType type,
+                                                                final MultipartReplyBody mpReplyGroupCaseBld) {
         return new MultipartReplyMessageBuilder()
                 .setMultipartReplyBody(mpReplyGroupCaseBld)
                 .setType(type)
@@ -515,29 +527,27 @@ public class StatisticsGatheringUtilsTest {
     }
 
     private static BucketStats createBucketStat(final long byteCount, final long packetCount) {
-        return new BucketStatsBuilder().setByteCount(BigInteger.valueOf(byteCount)).setPacketCount(BigInteger.valueOf(packetCount)).build();
+        return new BucketStatsBuilder()
+                .setByteCount(BigInteger.valueOf(byteCount)).setPacketCount(BigInteger.valueOf(packetCount)).build();
     }
 
     @Test
     public void testDeleteAllKnownFlows() throws Exception {
         final short tableId = 0;
-        final InstanceIdentifier<FlowCapableNode> nodePath = deviceInfo.getNodeInstanceIdentifier().augmentation(FlowCapableNode.class);
+        final InstanceIdentifier<FlowCapableNode> nodePath =
+                deviceInfo.getNodeInstanceIdentifier().augmentation(FlowCapableNode.class);
         final TableBuilder tableDataBld = new TableBuilder();
         tableDataBld.setId(tableId);
         final FlowCapableNodeBuilder flowNodeBuilder = new FlowCapableNodeBuilder();
         flowNodeBuilder.setTable(Collections.singletonList(tableDataBld.build()));
         final Optional<FlowCapableNode> flowNodeOpt = Optional.of(flowNodeBuilder.build());
-        final CheckedFuture<Optional<FlowCapableNode>, ReadFailedException> flowNodeFuture = Futures.immediateCheckedFuture(flowNodeOpt);
-        when(readTx.read(LogicalDatastoreType.OPERATIONAL, nodePath)).thenReturn(flowNodeFuture);
-        final KeyedInstanceIdentifier<Table, TableKey> tablePath = deviceInfo.getNodeInstanceIdentifier()
-                .augmentation(FlowCapableNode.class).child(Table.class, new TableKey(tableId));
-
-        StatisticsGatheringUtils.deleteAllKnownFlows(deviceInfo,
-                deviceContext.getDeviceFlowRegistry(), txFacade);
-
-        verify(txFacade).writeToTransaction(
-                LogicalDatastoreType.OPERATIONAL,
-                tablePath,
-                tableDataBld.setFlow(Collections.<Flow>emptyList()).build());
+        doReturn(FluentFutures.immediateFluentFuture(flowNodeOpt)).when(readTx)
+            .read(LogicalDatastoreType.OPERATIONAL, nodePath);
+        StatisticsGatheringUtils.deleteAllKnownFlows(deviceContext, deviceInfo.getNodeInstanceIdentifier()
+            .augmentation(FlowCapableNode.class), deviceFlowRegistry);
+
+        verify(deviceContext).isTransactionsEnabled();
+        verify(deviceContext).getReadTransaction();
+        verify(deviceContext).writeToTransaction(eq(LogicalDatastoreType.OPERATIONAL), any(), any());
     }
 }