### Question:
NodeFactoryNeo4j implements NodeFactory { @Override public Dataset getOrCreateDataset(Dataset originatingDataset) { try (Transaction transaction = graphDb.beginTx()) { Dataset datasetCreated = getOrCreateDatasetNoTx(originatingDataset); transaction.success(); return datasetCreated; } } NodeFactoryNeo4j(GraphDatabaseService graphDb); GraphDatabaseService getGraphDb(); @Override LocationNode findLocation(Location location); @Override SeasonNode createSeason(String seasonNameLower); @Override SpecimenNode createSpecimen(Interaction interaction, Taxon taxon); @Override SpecimenNode createSpecimen(Study study, Taxon taxon); @Override SpecimenNode createSpecimen(Study study, Taxon taxon, RelTypes... types); @Override StudyNode createStudy(Study study); @Override StudyNode getOrCreateStudy(Study study); @Deprecated @Override StudyNode findStudy(String title); @Override SeasonNode findSeason(String seasonName); @Override LocationNode getOrCreateLocation(org.eol.globi.domain.Location location); @Override void setUnixEpochProperty(Specimen specimen, Date date); @Override Date getUnixEpochProperty(Specimen specimen); @Override List<Environment> getOrCreateEnvironments(Location location, String externalId, String name); @Override List<Environment> addEnvironmentToLocation(Location location, List<Term> terms); @Override Term getOrCreateBodyPart(String externalId, String name); @Override Term getOrCreatePhysiologicalState(String externalId, String name); @Override Term getOrCreateLifeStage(String externalId, String name); @Override TermLookupService getTermLookupService(); void setEnvoLookupService(TermLookupService envoLookupService); void setTermLookupService(TermLookupService termLookupService); @Deprecated void setDoiResolver(DOIResolver doiResolver); @Override AuthorIdResolver getAuthorResolver(); @Override Term getOrCreateBasisOfRecord(String externalId, String name); @Override Dataset getOrCreateDataset(Dataset originatingDataset); @Override Interaction createInteraction(Study study); static final TermImpl NO_MATCH_TERM; }### Answer:
@Test public void getOrCreateDataset() throws NodeFactoryException, IOException { assertDataset(DatasetConstant.CITATION); }