@Override
public void testMerge_notModifyParams() throws Exception {
int duration1 = 98123;
int duration2 = 12934;
SessionEventType t1 = new SessionEventType();
t1.setDuration(duration1);
SessionEventType t2 = new SessionEventType();
t2.setDuration(duration2);
SessionEventType result = merger.merge(t1, t2);
assertNotSame(t1, result);
assertNotSame(t2, result);
assertEquals(duration1, t1.getDuration());
assertEquals(duration2, t2.getDuration());
assertEquals(duration1 + duration2, result.getDuration());
}