@Test
public void testGetDifferenceEntityChainEmpty() {

    // Setup:
    Resource sourceId = VALUE_FACTORY.createIRI("http://mobi.com/test/commits#test3");
    Resource targetId = VALUE_FACTORY.createIRI("http://mobi.com/test/commits#test0");
    Resource entityId = VALUE_FACTORY.createIRI("http://mobi.com/test/class5");
    try (RepositoryConnection conn = repo.getConnection()) {
        List<Resource> actual = service.getDifferenceChain(sourceId, targetId, entityId, conn);
        assertEquals(0, actual.size());
    }
}