BUG 2676 : Apply backpressure when creating transactions

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

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/utils/ActorContextTest.java b/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/utils/ActorContextTest.java
index e4ab969f5c4351c0e5b3894d3d3115aa6322337a..16db2be185e00ff11b9c31a0ebc9dac5829c75a3 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/utils/ActorContextTest.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/utils/ActorContextTest.java
@@ -2,6 +2,7 @@ package org.opendaylight.controller.cluster.datastore.utils;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
+import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
 import akka.actor.ActorRef;
 import akka.actor.ActorSelection;
@@ -12,10 +13,12 @@ import akka.japi.Creator;
 import akka.testkit.JavaTestKit;
 import com.google.common.base.Optional;
 import java.util.concurrent.TimeUnit;
+import org.apache.commons.lang.time.StopWatch;
 import org.junit.Test;
 import org.opendaylight.controller.cluster.datastore.AbstractActorTest;
 import org.opendaylight.controller.cluster.datastore.ClusterWrapper;
 import org.opendaylight.controller.cluster.datastore.Configuration;
+import org.opendaylight.controller.cluster.datastore.DatastoreContext;
 import org.opendaylight.controller.cluster.datastore.messages.FindLocalShard;
 import org.opendaylight.controller.cluster.datastore.messages.LocalShardFound;
 import org.opendaylight.controller.cluster.datastore.messages.LocalShardNotFound;
@@ -265,4 +268,34 @@ public class ActorContextTest extends AbstractActorTest{
         assertEquals(expected, actual);
     }
 
+    @Test
+    public void testRateLimiting(){
+        DatastoreContext mockDataStoreContext = mock(DatastoreContext.class);
+
+        doReturn(155L).when(mockDataStoreContext).getTransactionCreationInitialRateLimit();
+
+        ActorContext actorContext =
+                new ActorContext(getSystem(), mock(ActorRef.class), mock(ClusterWrapper.class),
+                        mock(Configuration.class), mockDataStoreContext, "config");
+
+        // Check that the initial value is being picked up from DataStoreContext
+        assertEquals(mockDataStoreContext.getTransactionCreationInitialRateLimit(), actorContext.getTxCreationLimit(), 1e-15);
+
+        actorContext.setTxCreationLimit(1.0);
+
+        assertEquals(1.0, actorContext.getTxCreationLimit(), 1e-15);
+
+
+        StopWatch watch = new StopWatch();
+
+        watch.start();
+
+        actorContext.acquireTxCreationPermit();
+        actorContext.acquireTxCreationPermit();
+        actorContext.acquireTxCreationPermit();
+
+        watch.stop();
+
+        assertTrue("did not take as much time as expected", watch.getTime() > 1000);
+    }
 }