CloneStateEvaluationFunctionFactory implements EvaluationFunctionStateFactory<T> { @Override public Collection<String> getChannelIdentifiers() { return prototype.getChannelIdentifiers(); } private  CloneStateEvaluationFunctionFactory(EvaluationFunction<T> prototype); @Override EvaluationFunction<T> create(); @Override Collection<String> getChannelIdentifiers(); static Builder<T> builder();  }
@Test public void getChannelIdentifiers() { Collection<String> channelIdentifiers = factory.getChannelIdentifiers(); assertEquals(new HashSet<>(), channelIdentifiers); }