### Question:
DatasetZenodo extends DatasetImpl { @Override public DOI getDOI() { return CitationUtil.getDOI(this); } DatasetZenodo(String namespace, URI zenodoGitHubArchives, InputStreamFactory inputStreamFactory); @Override DOI getDOI();  }### Answer:
@Test public void doi() { DatasetZenodo datasetZenodo = new DatasetZenodo("some/namespace", URI.create("https: assertThat(datasetZenodo.getDOI().toString(), is("10.5281/zenodo.1234")); }