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https://issues.apache.org/jira/browse/GEODE-8173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17127192#comment-17127192
 ] 

ASF GitHub Bot commented on GEODE-8173:
---------------------------------------

agingade commented on a change in pull request #5208:
URL: https://github.com/apache/geode/pull/5208#discussion_r436215906



##########
File path: 
geode-core/src/test/java/org/apache/geode/internal/cache/PartitionedRegionClearTest.java
##########
@@ -0,0 +1,598 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more 
contributor license
+ * agreements. See the NOTICE file distributed with this work for additional 
information regarding
+ * copyright ownership. The ASF licenses this file to You under the Apache 
License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the 
License. You may obtain a
+ * copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software 
distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 
KIND, either express
+ * or implied. See the License for the specific language governing permissions 
and limitations under
+ * the License.
+ */
+package org.apache.geode.internal.cache;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.Assertions.catchThrowable;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+
+import org.junit.Before;
+import org.junit.Test;
+
+import org.apache.geode.CancelCriterion;
+import org.apache.geode.cache.PartitionedRegionPartialClearException;
+import org.apache.geode.cache.Region;
+import org.apache.geode.distributed.DistributedLockService;
+import org.apache.geode.distributed.internal.DMStats;
+import org.apache.geode.distributed.internal.DistributionManager;
+import org.apache.geode.distributed.internal.InternalDistributedSystem;
+import org.apache.geode.distributed.internal.MembershipListener;
+import 
org.apache.geode.distributed.internal.membership.InternalDistributedMember;
+import org.apache.geode.internal.cache.partitioned.RegionAdvisor;
+import org.apache.geode.internal.cache.versions.RegionVersionVector;
+
+public class PartitionedRegionClearTest {
+
+
+  private PartitionedRegionClear partitionedRegionClear;
+  private DistributionManager distributionManager;
+  private PartitionedRegion partitionedRegion;
+
+  @Before
+  public void setUp() {
+
+    partitionedRegion = mock(PartitionedRegion.class);
+    distributionManager = mock(DistributionManager.class);
+
+    
when(partitionedRegion.getDistributionManager()).thenReturn(distributionManager);
+    when(partitionedRegion.getName()).thenReturn("prRegion");
+
+    partitionedRegionClear = new PartitionedRegionClear(partitionedRegion);
+  }
+
+  private Set<BucketRegion> setupBucketRegions(
+      PartitionedRegionDataStore partitionedRegionDataStore,
+      BucketAdvisor bucketAdvisor) {
+    final int numBuckets = 2;
+    HashSet<BucketRegion> bucketRegions = new HashSet<>();
+    for (int i = 0; i < numBuckets; i++) {
+      BucketRegion bucketRegion = mock(BucketRegion.class);
+      when(bucketRegion.getBucketAdvisor()).thenReturn(bucketAdvisor);
+      when(bucketRegion.size()).thenReturn(1);
+      when(bucketRegion.getId()).thenReturn(i);
+      bucketRegions.add(bucketRegion);
+    }
+
+    
when(partitionedRegionDataStore.getAllLocalBucketRegions()).thenReturn(bucketRegions);
+    
when(partitionedRegionDataStore.getAllLocalPrimaryBucketRegions()).thenReturn(bucketRegions);
+
+    return bucketRegions;
+  }
+
+  @Test
+  public void isLockedForListenerAndClientNotificationReturnsTrueWhenLocked() {
+    InternalDistributedMember internalDistributedMember = 
mock(InternalDistributedMember.class);
+    
when(distributionManager.isCurrentMember(internalDistributedMember)).thenReturn(true);
+    partitionedRegionClear.obtainClearLockLocal(internalDistributedMember);
+
+    
assertThat(partitionedRegionClear.isLockedForListenerAndClientNotification()).isTrue();
+  }
+
+  @Test
+  public void 
isLockedForListenerAndClientNotificationReturnsFalseWhenMemberNotInTheSystemRequestsLock()
 {
+    InternalDistributedMember internalDistributedMember = 
mock(InternalDistributedMember.class);
+    
when(distributionManager.isCurrentMember(internalDistributedMember)).thenReturn(false);
+
+    
assertThat(partitionedRegionClear.isLockedForListenerAndClientNotification()).isFalse();
+  }
+
+  @Test
+  public void acquireDistributedClearLockGetsDistributedLock() {
+    DistributedLockService distributedLockService = 
mock(DistributedLockService.class);
+    String lockName = PartitionedRegionClear.CLEAR_OPERATION + 
partitionedRegion.getName();
+    
when(partitionedRegion.getPartitionedRegionLockService()).thenReturn(distributedLockService);
+
+    partitionedRegionClear.acquireDistributedClearLock(lockName);
+
+    verify(distributedLockService, times(1)).lock(lockName, -1, -1);
+  }
+
+  @Test
+  public void releaseDistributedClearLockReleasesDistributedLock() {
+    DistributedLockService distributedLockService = 
mock(DistributedLockService.class);
+    String lockName = PartitionedRegionClear.CLEAR_OPERATION + 
partitionedRegion.getName();
+    
when(partitionedRegion.getPartitionedRegionLockService()).thenReturn(distributedLockService);
+
+    partitionedRegionClear.releaseDistributedClearLock(lockName);
+
+    verify(distributedLockService, times(1)).unlock(lockName);
+  }
+
+  @Test
+  public void obtainLockForClearGetsLocalLockAndSendsMessageForRemote() throws 
Exception {
+    RegionEventImpl regionEvent = mock(RegionEventImpl.class);
+    when(regionEvent.clone()).thenReturn(mock(RegionEventImpl.class));
+    Region<String, PartitionRegionConfig> region = mock(Region.class);
+    when(partitionedRegion.getPRRoot()).thenReturn(region);
+    PartitionedRegionClear spyPartitionedRegionClear = 
spy(partitionedRegionClear);
+    doReturn(Collections.EMPTY_LIST).when(spyPartitionedRegionClear)
+        .attemptToSendPartitionedRegionClearMessage(regionEvent,
+            PartitionedRegionClearMessage.OperationType.OP_LOCK_FOR_PR_CLEAR);
+    InternalDistributedMember internalDistributedMember = 
mock(InternalDistributedMember.class);
+    when(distributionManager.getId()).thenReturn(internalDistributedMember);
+
+    spyPartitionedRegionClear.obtainLockForClear(regionEvent);
+
+    verify(spyPartitionedRegionClear, 
times(1)).obtainClearLockLocal(internalDistributedMember);
+    verify(spyPartitionedRegionClear, 
times(1)).sendPartitionedRegionClearMessage(regionEvent,
+        PartitionedRegionClearMessage.OperationType.OP_LOCK_FOR_PR_CLEAR);
+  }
+
+  @Test
+  public void releaseLockForClearReleasesLocalLockAndSendsMessageForRemote() 
throws Exception {
+    RegionEventImpl regionEvent = mock(RegionEventImpl.class);
+    when(regionEvent.clone()).thenReturn(mock(RegionEventImpl.class));
+    Region<String, PartitionRegionConfig> region = mock(Region.class);
+    when(partitionedRegion.getPRRoot()).thenReturn(region);
+    PartitionedRegionClear spyPartitionedRegionClear = 
spy(partitionedRegionClear);
+    doReturn(Collections.EMPTY_LIST).when(spyPartitionedRegionClear)
+        .attemptToSendPartitionedRegionClearMessage(regionEvent,
+            
PartitionedRegionClearMessage.OperationType.OP_UNLOCK_FOR_PR_CLEAR);
+    InternalDistributedMember internalDistributedMember = 
mock(InternalDistributedMember.class);
+    when(distributionManager.getId()).thenReturn(internalDistributedMember);
+
+    spyPartitionedRegionClear.releaseLockForClear(regionEvent);
+
+    verify(spyPartitionedRegionClear, times(1)).releaseClearLockLocal();
+    verify(spyPartitionedRegionClear, 
times(1)).sendPartitionedRegionClearMessage(regionEvent,
+        PartitionedRegionClearMessage.OperationType.OP_UNLOCK_FOR_PR_CLEAR);
+  }
+
+  @Test
+  public void clearRegionClearsLocalAndSendsMessageForRemote() throws 
Exception {
+    RegionEventImpl regionEvent = mock(RegionEventImpl.class);
+    when(regionEvent.clone()).thenReturn(mock(RegionEventImpl.class));
+    Region<String, PartitionRegionConfig> region = mock(Region.class);
+    when(partitionedRegion.getPRRoot()).thenReturn(region);
+    PartitionedRegionClear spyPartitionedRegionClear = 
spy(partitionedRegionClear);
+    doReturn(Collections.EMPTY_LIST).when(spyPartitionedRegionClear)
+        .attemptToSendPartitionedRegionClearMessage(regionEvent,
+            PartitionedRegionClearMessage.OperationType.OP_PR_CLEAR);
+    InternalDistributedMember internalDistributedMember = 
mock(InternalDistributedMember.class);
+    when(distributionManager.getId()).thenReturn(internalDistributedMember);
+    RegionVersionVector regionVersionVector = mock(RegionVersionVector.class);
+
+    spyPartitionedRegionClear.clearRegion(regionEvent, false, 
regionVersionVector);
+
+    verify(spyPartitionedRegionClear, times(1)).clearRegionLocal(regionEvent);
+    verify(spyPartitionedRegionClear, 
times(1)).sendPartitionedRegionClearMessage(regionEvent,
+        PartitionedRegionClearMessage.OperationType.OP_PR_CLEAR);
+  }
+
+  @Test
+  public void waitForPrimaryReturnsAfterFindingAllPrimary() {
+    PartitionedRegionDataStore partitionedRegionDataStore = 
mock(PartitionedRegionDataStore.class);
+    BucketAdvisor bucketAdvisor = mock(BucketAdvisor.class);
+    when(bucketAdvisor.hasPrimary()).thenReturn(true);
+    setupBucketRegions(partitionedRegionDataStore, bucketAdvisor);
+    
when(partitionedRegion.getDataStore()).thenReturn(partitionedRegionDataStore);
+    PartitionedRegion.RetryTimeKeeper retryTimer = 
mock(PartitionedRegion.RetryTimeKeeper.class);
+
+    partitionedRegionClear.waitForPrimary(retryTimer);
+
+    verify(retryTimer, times(0)).waitForBucketsRecovery();
+  }
+
+  @Test
+  public void waitForPrimaryReturnsAfterRetryForPrimary() {
+    PartitionedRegionDataStore partitionedRegionDataStore = 
mock(PartitionedRegionDataStore.class);
+    BucketAdvisor bucketAdvisor = mock(BucketAdvisor.class);
+    when(bucketAdvisor.hasPrimary()).thenReturn(false).thenReturn(true);
+    setupBucketRegions(partitionedRegionDataStore, bucketAdvisor);
+    
when(partitionedRegion.getDataStore()).thenReturn(partitionedRegionDataStore);
+    PartitionedRegion.RetryTimeKeeper retryTimer = 
mock(PartitionedRegion.RetryTimeKeeper.class);
+
+    partitionedRegionClear.waitForPrimary(retryTimer);
+
+    verify(retryTimer, times(1)).waitForBucketsRecovery();
+  }
+
+  @Test
+  public void waitForPrimaryThrowsPartitionedRegionPartialClearException() {
+    PartitionedRegionDataStore partitionedRegionDataStore = 
mock(PartitionedRegionDataStore.class);
+    BucketAdvisor bucketAdvisor = mock(BucketAdvisor.class);
+    setupBucketRegions(partitionedRegionDataStore, bucketAdvisor);
+    
when(partitionedRegion.getDataStore()).thenReturn(partitionedRegionDataStore);
+    PartitionedRegion.RetryTimeKeeper retryTimer = 
mock(PartitionedRegion.RetryTimeKeeper.class);
+    when(retryTimer.overMaximum()).thenReturn(true);
+
+    Throwable thrown = catchThrowable(() -> 
partitionedRegionClear.waitForPrimary(retryTimer));
+
+    assertThat(thrown)
+        .isInstanceOf(PartitionedRegionPartialClearException.class)
+        .hasMessage(
+            "Unable to find primary bucket region during clear operation for 
region: prRegion");
+    verify(retryTimer, times(0)).waitForBucketsRecovery();
+  }
+
+  @Test
+  public void clearRegionLocalCallsClearOnLocalPrimaryBucketRegions() {
+    RegionEventImpl regionEvent = mock(RegionEventImpl.class);
+    BucketAdvisor bucketAdvisor = mock(BucketAdvisor.class);
+    when(bucketAdvisor.hasPrimary()).thenReturn(true);
+    PartitionedRegionDataStore partitionedRegionDataStore = 
mock(PartitionedRegionDataStore.class);
+    
doNothing().when(partitionedRegionDataStore).lockBucketCreationForRegionClear();
+    Set<BucketRegion> buckets = setupBucketRegions(partitionedRegionDataStore, 
bucketAdvisor);
+    
when(partitionedRegion.getDataStore()).thenReturn(partitionedRegionDataStore);
+
+    List bucketsCleared = partitionedRegionClear.clearRegionLocal(regionEvent);
+
+    assertThat(bucketsCleared.size()).isEqualTo(buckets.size());
+    for (BucketRegion bucketRegion : buckets) {
+      verify(bucketRegion, times(1)).clear();
+    }
+  }
+
+  @Test
+  public void clearRegionLocalRetriesClearOnLocalPrimaryBucketRegions() {
+    RegionEventImpl regionEvent = mock(RegionEventImpl.class);
+    BucketAdvisor bucketAdvisor = mock(BucketAdvisor.class);
+    when(bucketAdvisor.hasPrimary()).thenReturn(true);
+    PartitionedRegionDataStore partitionedRegionDataStore = 
mock(PartitionedRegionDataStore.class);
+    
doNothing().when(partitionedRegionDataStore).lockBucketCreationForRegionClear();
+    Set<BucketRegion> buckets = setupBucketRegions(partitionedRegionDataStore, 
bucketAdvisor);
+    
when(partitionedRegion.getDataStore()).thenReturn(partitionedRegionDataStore);
+    PartitionedRegionClear spyPartitionedRegionClear = 
spy(partitionedRegionClear);
+    
when(spyPartitionedRegionClear.getMembershipChange()).thenReturn(true).thenReturn(false);
+
+    List bucketsCleared = 
spyPartitionedRegionClear.clearRegionLocal(regionEvent);
+
+    int expectedClears = buckets.size() * 2; /* clear is called twice on each 
bucket */
+    assertThat(bucketsCleared.size()).isEqualTo(expectedClears);
+    for (BucketRegion bucketRegion : buckets) {
+      verify(bucketRegion, times(2)).clear();
+    }
+  }
+
+  @Test
+  public void doAfterClearCallsNotifyClientsWhenClientHaveInterests() {
+    RegionEventImpl regionEvent = mock(RegionEventImpl.class);
+    when(partitionedRegion.hasAnyClientsInterested()).thenReturn(true);
+    FilterProfile filterProfile = mock(FilterProfile.class);
+    FilterRoutingInfo filterRoutingInfo = mock(FilterRoutingInfo.class);
+    when(filterProfile.getFilterRoutingInfoPart1(regionEvent, 
FilterProfile.NO_PROFILES,
+        Collections.emptySet())).thenReturn(filterRoutingInfo);
+    when(filterProfile.getFilterRoutingInfoPart2(filterRoutingInfo, 
regionEvent)).thenReturn(
+        filterRoutingInfo);
+    when(partitionedRegion.getFilterProfile()).thenReturn(filterProfile);
+
+    partitionedRegionClear.doAfterClear(regionEvent);
+
+    verify(regionEvent, times(1)).setLocalFilterInfo(any());
+    verify(partitionedRegion, times(1)).notifyBridgeClients(regionEvent);
+  }
+
+  @Test
+  public void doAfterClearDispatchesListenerEvents() {
+    RegionEventImpl regionEvent = mock(RegionEventImpl.class);
+    when(partitionedRegion.hasListener()).thenReturn(true);
+
+    partitionedRegionClear.doAfterClear(regionEvent);
+
+    verify(partitionedRegion, times(1)).dispatchListenerEvent(
+        EnumListenerEvent.AFTER_REGION_CLEAR, regionEvent);
+  }
+
+  @Test
+  public void obtainClearLockLocalGetsLockOnPrimaryBuckets() {
+    BucketAdvisor bucketAdvisor = mock(BucketAdvisor.class);
+    when(bucketAdvisor.hasPrimary()).thenReturn(true);
+    PartitionedRegionDataStore partitionedRegionDataStore = 
mock(PartitionedRegionDataStore.class);
+    Set<BucketRegion> buckets = setupBucketRegions(partitionedRegionDataStore, 
bucketAdvisor);
+    
when(partitionedRegion.getDataStore()).thenReturn(partitionedRegionDataStore);
+    InternalDistributedMember member = mock(InternalDistributedMember.class);
+    when(distributionManager.isCurrentMember(member)).thenReturn(true);
+
+    partitionedRegionClear.obtainClearLockLocal(member);
+
+    
assertThat(partitionedRegionClear.lockForListenerAndClientNotification.getLockRequester())
+        .isSameAs(member);
+    for (BucketRegion bucketRegion : buckets) {
+      verify(bucketRegion, 
times(1)).lockLocallyForClear(partitionedRegion.getDistributionManager(),
+          partitionedRegion.getMyId(), null);
+    }
+  }
+
+  @Test
+  public void 
obtainClearLockLocalDoesNotGetLocksOnPrimaryBucketsWhenMemberIsNotCurrent() {
+    BucketAdvisor bucketAdvisor = mock(BucketAdvisor.class);
+    when(bucketAdvisor.hasPrimary()).thenReturn(true);
+    PartitionedRegionDataStore partitionedRegionDataStore = 
mock(PartitionedRegionDataStore.class);
+    Set<BucketRegion> buckets = setupBucketRegions(partitionedRegionDataStore, 
bucketAdvisor);
+    
when(partitionedRegion.getDataStore()).thenReturn(partitionedRegionDataStore);
+    InternalDistributedMember member = mock(InternalDistributedMember.class);
+    when(distributionManager.isCurrentMember(member)).thenReturn(false);
+
+    partitionedRegionClear.obtainClearLockLocal(member);
+
+    
assertThat(partitionedRegionClear.lockForListenerAndClientNotification.getLockRequester())
+        .isNull();
+    for (BucketRegion bucketRegion : buckets) {
+      verify(bucketRegion, 
times(0)).lockLocallyForClear(partitionedRegion.getDistributionManager(),
+          partitionedRegion.getMyId(), null);
+    }
+  }
+
+  @Test
+  public void releaseClearLockLocalReleasesLockOnPrimaryBuckets() {
+    BucketAdvisor bucketAdvisor = mock(BucketAdvisor.class);
+    when(bucketAdvisor.hasPrimary()).thenReturn(true);
+    PartitionedRegionDataStore partitionedRegionDataStore = 
mock(PartitionedRegionDataStore.class);
+    Set<BucketRegion> buckets = setupBucketRegions(partitionedRegionDataStore, 
bucketAdvisor);
+    
when(partitionedRegion.getDataStore()).thenReturn(partitionedRegionDataStore);
+    InternalDistributedMember member = mock(InternalDistributedMember.class);
+    when(distributionManager.isCurrentMember(member)).thenReturn(true);
+    
partitionedRegionClear.lockForListenerAndClientNotification.setLocked(member);
+
+    partitionedRegionClear.releaseClearLockLocal();
+
+    for (BucketRegion bucketRegion : buckets) {
+      verify(bucketRegion, times(1)).releaseLockLocallyForClear(null);
+    }
+  }
+
+  @Test
+  public void 
releaseClearLockLocalDoesNotReleaseLocksOnPrimaryBucketsWhenMemberIsNotCurrent()
 {
+    BucketAdvisor bucketAdvisor = mock(BucketAdvisor.class);
+    when(bucketAdvisor.hasPrimary()).thenReturn(true);
+    PartitionedRegionDataStore partitionedRegionDataStore = 
mock(PartitionedRegionDataStore.class);
+    Set<BucketRegion> buckets = setupBucketRegions(partitionedRegionDataStore, 
bucketAdvisor);
+    
when(partitionedRegion.getDataStore()).thenReturn(partitionedRegionDataStore);
+    InternalDistributedMember member = mock(InternalDistributedMember.class);
+
+    partitionedRegionClear.obtainClearLockLocal(member);
+
+    
assertThat(partitionedRegionClear.lockForListenerAndClientNotification.getLockRequester())
+        .isNull();
+    for (BucketRegion bucketRegion : buckets) {
+      verify(bucketRegion, times(0)).releaseLockLocallyForClear(null);
+    }
+  }
+
+  @Test
+  public void sendPartitionedRegionClearMessageSendsClearMessageToPRNodes() {
+    RegionEventImpl regionEvent = mock(RegionEventImpl.class);
+    when(regionEvent.clone()).thenReturn(mock(RegionEventImpl.class));
+    Region<String, PartitionRegionConfig> prRoot = mock(Region.class);
+    when(partitionedRegion.getPRRoot()).thenReturn(prRoot);
+    InternalDistributedMember member = mock(InternalDistributedMember.class);
+    RegionAdvisor regionAdvisor = mock(RegionAdvisor.class);
+    Set<InternalDistributedMember> prNodes = new HashSet<>();
+    prNodes.add(member);
+    Node node = mock(Node.class);
+    when(node.getMemberId()).thenReturn(member);
+    Set<Node> configNodes = new HashSet<>();
+    configNodes.add(node);

Review comment:
       Good suggestion. Looks little tidy.




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> Add test coverage for PartitionedRegionClear class
> --------------------------------------------------
>
>                 Key: GEODE-8173
>                 URL: https://issues.apache.org/jira/browse/GEODE-8173
>             Project: Geode
>          Issue Type: Bug
>          Components: regions
>            Reporter: Anilkumar Gingade
>            Priority: Major
>              Labels: GeodeOperationAPI
>             Fix For: 1.14.0
>
>
> Add test coverage for PartitionedRegionClear class.



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