@Test
public void testFindFailure3() {

  final IncidentTree r = new IncidentTreeImpl(
          Arrays.asList(mkIncident(Severity.FAILURE), mkIncident(Severity.INFO), mkIncident(Severity.INFO)),
          Collections.singletonList(new IncidentTreeImpl(
                  Arrays.asList(mkIncident(Severity.INFO), mkIncident(Severity.WARNING)),
                  Collections.singletonList(new IncidentTreeImpl(
                          Arrays.asList(mkIncident(Severity.WARNING), mkIncident(Severity.INFO)),
                          Collections.emptyList())))));
  assertTrue(Incidents.findFailure(r));
}