test2.add(new Event("beta", null));
test2.add(new Event("beta", null));
test2.add(new Event("beta", null));
test2.add(new Event("beta", null));
test2.add(new Event("gamma", null));
es2.addEvents(test2);
assertTrue(new IntersectionDistance().distance(new EventMap(es1), new EventMap(es2)) == 0);
/* test 3 -- totally disjoint (== 1.0) */
es2=new EventSet();
test2 = new Vector<Event>();