Bug 4105: Choose Owner for an Entity based on first come first served basis

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / test / java / org / opendaylight / controller / cluster / datastore / entityownership / CandidateListChangeListenerTest.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/entityownership/CandidateListChangeListenerTest.java b/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/entityownership/CandidateListChangeListenerTest.java
new file mode 100644 (file)
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+++ b/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/entityownership/CandidateListChangeListenerTest.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright (c) 2015 Brocade Communications Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * 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.controller.cluster.datastore.entityownership;
+
+import static org.junit.Assert.assertEquals;
+import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.ENTITY_OWNERS_PATH;
+import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.candidatePath;
+import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.entityOwnersWithCandidate;
+import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.entityPath;
+import akka.testkit.JavaTestKit;
+import com.google.common.collect.ImmutableSet;
+import java.util.concurrent.TimeUnit;
+import org.junit.Test;
+import org.opendaylight.controller.cluster.datastore.AbstractActorTest;
+import org.opendaylight.controller.cluster.datastore.ShardDataTree;
+import org.opendaylight.controller.cluster.datastore.entityownership.messages.CandidateAdded;
+import org.opendaylight.controller.cluster.datastore.entityownership.messages.CandidateRemoved;
+import org.opendaylight.controller.md.cluster.datastore.model.SchemaContextHelper;
+import org.opendaylight.yangtools.yang.common.QName;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataValidationFailedException;
+import scala.concurrent.duration.FiniteDuration;
+
+/**
+ * Unit tests for CandidateListChangeListener.
+ *
+ * @author Thomas Pantelis
+ */
+public class CandidateListChangeListenerTest extends AbstractActorTest {
+    private static final String ENTITY_TYPE = "test";
+    private static final YangInstanceIdentifier ENTITY_ID1 =
+            YangInstanceIdentifier.of(QName.create("test", "2015-08-14", "entity1"));
+    private static final YangInstanceIdentifier ENTITY_ID2 =
+            YangInstanceIdentifier.of(QName.create("test", "2015-08-14", "entity2"));
+
+    private final ShardDataTree shardDataTree = new ShardDataTree(SchemaContextHelper.entityOwners());
+
+    @Test
+    public void testOnDataTreeChanged() throws Exception {
+        JavaTestKit kit = new JavaTestKit(getSystem());
+
+        CandidateListChangeListener listener = new CandidateListChangeListener(kit.getRef(), shardDataTree);
+
+        String memberName1 = "member-1";
+        writeNode(ENTITY_OWNERS_PATH, entityOwnersWithCandidate(ENTITY_TYPE, ENTITY_ID1, memberName1));
+
+        CandidateAdded candidateAdded = kit.expectMsgClass(CandidateAdded.class);
+        assertEquals("getEntityId", entityPath(ENTITY_TYPE, ENTITY_ID1), candidateAdded.getEntityPath());
+        assertEquals("getNewCandidate", memberName1, candidateAdded.getNewCandidate());
+        assertEquals("getAllCandidates", ImmutableSet.of(memberName1),
+                ImmutableSet.copyOf(candidateAdded.getAllCandidates()));
+
+        writeNode(ENTITY_OWNERS_PATH, entityOwnersWithCandidate(ENTITY_TYPE, ENTITY_ID1, memberName1));
+        kit.expectNoMsg(FiniteDuration.create(500, TimeUnit.MILLISECONDS));
+
+        String memberName2 = "member-2";
+        writeNode(ENTITY_OWNERS_PATH, entityOwnersWithCandidate(ENTITY_TYPE, ENTITY_ID1, memberName2));
+
+        candidateAdded = kit.expectMsgClass(CandidateAdded.class);
+        assertEquals("getEntityId", entityPath(ENTITY_TYPE, ENTITY_ID1), candidateAdded.getEntityPath());
+        assertEquals("getNewCandidate", memberName2, candidateAdded.getNewCandidate());
+        assertEquals("getAllCandidates", ImmutableSet.of(memberName1, memberName2),
+                ImmutableSet.copyOf(candidateAdded.getAllCandidates()));
+
+        writeNode(ENTITY_OWNERS_PATH, entityOwnersWithCandidate(ENTITY_TYPE, ENTITY_ID2, memberName1));
+
+        candidateAdded = kit.expectMsgClass(CandidateAdded.class);
+        assertEquals("getEntityId", entityPath(ENTITY_TYPE, ENTITY_ID2), candidateAdded.getEntityPath());
+        assertEquals("getNewCandidate", memberName1, candidateAdded.getNewCandidate());
+        assertEquals("getAllCandidates", ImmutableSet.of(memberName1),
+                ImmutableSet.copyOf(candidateAdded.getAllCandidates()));
+
+        deleteNode(candidatePath(ENTITY_TYPE, ENTITY_ID1, memberName1));
+
+        CandidateRemoved candidateRemoved = kit.expectMsgClass(CandidateRemoved.class);
+        assertEquals("getEntityId", entityPath(ENTITY_TYPE, ENTITY_ID1), candidateRemoved.getEntityPath());
+        assertEquals("getRemovedCandidate", memberName1, candidateRemoved.getRemovedCandidate());
+        assertEquals("getRemainingCandidates", ImmutableSet.of(memberName2),
+                ImmutableSet.copyOf(candidateRemoved.getRemainingCandidates()));
+
+        deleteNode(candidatePath(ENTITY_TYPE, ENTITY_ID1, memberName2));
+
+        candidateRemoved = kit.expectMsgClass(CandidateRemoved.class);
+        assertEquals("getEntityId", entityPath(ENTITY_TYPE, ENTITY_ID1), candidateRemoved.getEntityPath());
+        assertEquals("getRemovedCandidate", memberName2, candidateRemoved.getRemovedCandidate());
+        assertEquals("getRemainingCandidates", ImmutableSet.of(),
+                ImmutableSet.copyOf(candidateRemoved.getRemainingCandidates()));
+    }
+
+    private void writeNode(YangInstanceIdentifier path, NormalizedNode<?, ?> node) throws DataValidationFailedException {
+        AbstractEntityOwnershipTest.writeNode(path, node, shardDataTree);
+    }
+
+    private void deleteNode(YangInstanceIdentifier path) throws DataValidationFailedException {
+        AbstractEntityOwnershipTest.deleteNode(path, shardDataTree);
+    }
+}