Bug 8206: Prevent decr follower next index beyong -1

[controller.git] / opendaylight / md-sal / sal-akka-raft / src / test / java / org / opendaylight / controller / cluster / raft / FollowerLogInformationImplTest.java

diff --git a/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/FollowerLogInformationImplTest.java b/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/FollowerLogInformationImplTest.java
index a092c46533d251414ee7f22cf843c4fc3765f691..d68339ee8664f445b02a54cc46fb705bb3bf559e 100644 (file)
--- a/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/FollowerLogInformationImplTest.java
+++ b/opendaylight/md-sal/sal-akka-raft/src/test/java/org/opendaylight/controller/cluster/raft/FollowerLogInformationImplTest.java
@@ -7,36 +7,38 @@
  */
 package org.opendaylight.controller.cluster.raft;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
 import com.google.common.base.Stopwatch;
 import com.google.common.util.concurrent.Uninterruptibles;
+import java.util.concurrent.TimeUnit;
 import org.junit.Test;
 import scala.concurrent.duration.FiniteDuration;
 
-import java.util.concurrent.TimeUnit;
-
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-
 public class FollowerLogInformationImplTest {
 
     @Test
     public void testIsFollowerActive() {
 
-        FiniteDuration timeoutDuration =
-            new FiniteDuration(500, TimeUnit.MILLISECONDS);
-
-        FollowerLogInformation followerLogInformation =
-            new FollowerLogInformationImpl(
-                "follower1", 10, 9, timeoutDuration);
+        MockRaftActorContext context = new MockRaftActorContext();
+        context.setCommitIndex(10);
 
+        DefaultConfigParamsImpl configParams = new DefaultConfigParamsImpl();
+        configParams.setHeartBeatInterval(new FiniteDuration(500, TimeUnit.MILLISECONDS));
+        configParams.setElectionTimeoutFactor(1);
+        context.setConfigParams(configParams);
 
+        FollowerLogInformation followerLogInformation =
+                new FollowerLogInformationImpl(new PeerInfo("follower1", null, VotingState.VOTING), 9, context);
 
         assertFalse("Follower should be termed inactive before stopwatch starts",
-            followerLogInformation.isFollowerActive());
+                followerLogInformation.isFollowerActive());
 
         followerLogInformation.markFollowerActive();
         if (sleepWithElaspsedTimeReturned(200) > 200) {
-          return;
+            return;
         }
         assertTrue("Follower should be active", followerLogInformation.isFollowerActive());
 
@@ -44,21 +46,88 @@ public class FollowerLogInformationImplTest {
             return;
         }
         assertFalse("Follower should be inactive after time lapsed",
-            followerLogInformation.isFollowerActive());
+                followerLogInformation.isFollowerActive());
 
         followerLogInformation.markFollowerActive();
         assertTrue("Follower should be active from inactive",
-            followerLogInformation.isFollowerActive());
+                followerLogInformation.isFollowerActive());
     }
 
     // we cannot rely comfortably that the sleep will indeed sleep for the desired time
     // hence getting the actual elapsed time and do a match.
     // if the sleep has spilled over, then return the test gracefully
-    private long sleepWithElaspsedTimeReturned(long millis) {
-        Stopwatch stopwatch = new Stopwatch();
-        stopwatch.start();
+    private static long sleepWithElaspsedTimeReturned(long millis) {
+        Stopwatch stopwatch = Stopwatch.createStarted();
         Uninterruptibles.sleepUninterruptibly(millis, TimeUnit.MILLISECONDS);
         stopwatch.stop();
         return stopwatch.elapsed(TimeUnit.MILLISECONDS);
     }
+
+    @Test
+    public void testOkToReplicate() {
+        MockRaftActorContext context = new MockRaftActorContext();
+        context.setCommitIndex(0);
+        FollowerLogInformation followerLogInformation =
+                new FollowerLogInformationImpl(new PeerInfo("follower1", null, VotingState.VOTING), 10, context);
+
+        assertTrue(followerLogInformation.okToReplicate());
+        assertFalse(followerLogInformation.okToReplicate());
+
+        // wait for 150 milliseconds and it should work again
+        Uninterruptibles.sleepUninterruptibly(150, TimeUnit.MILLISECONDS);
+        assertTrue(followerLogInformation.okToReplicate());
+
+        //increment next index and try immediately and it should work again
+        followerLogInformation.incrNextIndex();
+        assertTrue(followerLogInformation.okToReplicate());
+    }
+
+    @Test
+    public void testVotingNotInitializedState() {
+        final PeerInfo peerInfo = new PeerInfo("follower1", null, VotingState.VOTING_NOT_INITIALIZED);
+        MockRaftActorContext context = new MockRaftActorContext();
+        context.setCommitIndex(0);
+        FollowerLogInformation followerLogInformation = new FollowerLogInformationImpl(peerInfo, -1, context);
+
+        assertFalse(followerLogInformation.okToReplicate());
+
+        followerLogInformation.markFollowerActive();
+        assertFalse(followerLogInformation.isFollowerActive());
+
+        peerInfo.setVotingState(VotingState.VOTING);
+        assertTrue(followerLogInformation.okToReplicate());
+
+        followerLogInformation.markFollowerActive();
+        assertTrue(followerLogInformation.isFollowerActive());
+    }
+
+    @Test
+    public void testNonVotingState() {
+        final PeerInfo peerInfo = new PeerInfo("follower1", null, VotingState.NON_VOTING);
+        MockRaftActorContext context = new MockRaftActorContext();
+        context.setCommitIndex(0);
+        FollowerLogInformation followerLogInformation = new FollowerLogInformationImpl(peerInfo, -1, context);
+
+        assertTrue(followerLogInformation.okToReplicate());
+
+        followerLogInformation.markFollowerActive();
+        assertTrue(followerLogInformation.isFollowerActive());
+    }
+
+    @Test
+    public void testDecrNextIndex() {
+        MockRaftActorContext context = new MockRaftActorContext();
+        context.setCommitIndex(1);
+        FollowerLogInformation followerLogInformation =
+                new FollowerLogInformationImpl(new PeerInfo("follower1", null, VotingState.VOTING), 1, context);
+
+        assertTrue(followerLogInformation.decrNextIndex());
+        assertEquals("getNextIndex", 0, followerLogInformation.getNextIndex());
+
+        assertTrue(followerLogInformation.decrNextIndex());
+        assertEquals("getNextIndex", -1, followerLogInformation.getNextIndex());
+
+        assertFalse(followerLogInformation.decrNextIndex());
+        assertEquals("getNextIndex", -1, followerLogInformation.getNextIndex());
+    }
 }