@Test
public void empty() {

    VariantAnnotation instance = VariantAnnotation.builder()
            .genomeAssembly(GenomeAssembly.HG19)
            .chromosome(0)
            .chromosomeName("")
            .position(0)
            .ref("")
            .alt("")
            .geneId("")
            .geneSymbol("")
            .variantEffect(VariantEffect.SEQUENCE_VARIANT)
            .annotations(Collections.emptyList())
            .build();
    assertThat(VariantAnnotation.empty(), equalTo(instance));
}