final Collection<ParsedOperationRequestHeader> headers = handler.getHeaders();
assertEquals(1, headers.size());
final ParsedOperationRequestHeader header = headers.iterator().next();
assertTrue(header instanceof ParsedRolloutPlanHeader);
ParsedRolloutPlanHeader rollout = (ParsedRolloutPlanHeader) header;
final SingleRolloutPlanGroup group = rollout.getLastGroup();
assertNotNull(group);
assertEquals("groupA", group.getGroupName());
assertFalse(group.endsOnPropertyListStart());
assertFalse(group.endsOnPropertyListEnd());