Formalized DeviceStore in preparation for separating managers and stores.
diff --git a/core/trivial/src/test/java/org/onlab/onos/net/trivial/link/impl/SimpleLinkManagerTest.java b/core/trivial/src/test/java/org/onlab/onos/net/trivial/link/impl/SimpleLinkManagerTest.java
index 93610b5..131af14 100644
--- a/core/trivial/src/test/java/org/onlab/onos/net/trivial/link/impl/SimpleLinkManagerTest.java
+++ b/core/trivial/src/test/java/org/onlab/onos/net/trivial/link/impl/SimpleLinkManagerTest.java
@@ -22,7 +22,7 @@
 import org.onlab.onos.net.provider.AbstractProvider;
 import org.onlab.onos.net.provider.ProviderId;
 import org.onlab.onos.event.impl.TestEventDispatcher;
-import org.onlab.onos.net.trivial.device.impl.SimpleDeviceManager;
+import org.onlab.onos.net.trivial.device.impl.DeviceManager;
 
 import java.util.ArrayList;
 import java.util.Iterator;
@@ -66,7 +66,7 @@
         admin = mgr;
         registry = mgr;
         mgr.eventDispatcher = new TestEventDispatcher();
-        mgr.deviceService = new SimpleDeviceManager();
+        mgr.deviceService = new DeviceManager();
         mgr.activate();
 
         service.addListener(listener);