@Test
public void getGeneIdentifier() {

    GeneIdentifier testIdentifier = GeneIdentifier.builder().geneSymbol("GENE:1").geneId("HGNC:12345").build();
    GeneScore instance = GeneScore.builder().geneIdentifier(testIdentifier).build();
    assertThat(instance.getGeneIdentifier(), equalTo(testIdentifier));
}