@Test
public void testEngine() throws PDPException {

    final EvaluationContextFactory factory = Mockito.mock(EvaluationContextFactory.class);
    final ScopeResolver resolver = Mockito.mock(ScopeResolver.class);
    final OnapPdpEngine engine = new OnapPdpEngine(factory, resolver);
    assertNotNull(engine);
    final Request pepRequest = Mockito.mock(Request.class);
    final Response response = engine.decide(pepRequest);
    assertEquals(1, response.getResults().size());
}