Added unit tests for the event abstractions.
Added Element as the notion of common ancestry between Device and Host.
diff --git a/net/api/src/test/java/org/onlab/onos/event/TestEvent.java b/net/api/src/test/java/org/onlab/onos/event/TestEvent.java
new file mode 100644
index 0000000..25c8f46
--- /dev/null
+++ b/net/api/src/test/java/org/onlab/onos/event/TestEvent.java
@@ -0,0 +1,19 @@
+package org.onlab.onos.event;
+
+/**
+ * Test event fixture.
+ */
+public class TestEvent extends AbstractEvent<TestEvent.Type, String> {
+
+ public enum Type { FOO, BAR };
+
+ public TestEvent(Type type, String subject) {
+ super(type, subject);
+ }
+
+ public TestEvent(Type type, String subject, long timestamp) {
+ super(type, subject, timestamp);
+ }
+
+}
+