### Question:
PublicDataFactory { public PublicDataExtractor buildAllPublicDataExtractor(EntityExtractor extractor) { return new AllPublicDataExtractor(extractor); }  PublicDataExtractor buildAllPublicDataExtractor(EntityExtractor extractor); List<PublicDataExtractor> buildPublicDataExtracts(EntityExtractor extractor);  }### Answer:
@Test public void buildUnfilteredPublicDataExtractor() { Assert.assertTrue(factory.buildAllPublicDataExtractor(null) != null); Assert.assertTrue(factory.buildAllPublicDataExtractor(null).getClass() == AllPublicDataExtractor.class); }