@Test
public void testGetDiffOfSameModel() throws Exception {

    try (RepositoryConnection conn = repo.getConnection()) {
        // Setup:
        Model original = RepositoryResults.asModel(conn.getStatements(null, null, null, VALUE_FACTORY.createIRI("http://mobi.com/test/diff2")), MODEL_FACTORY);
        Difference diff = manager.getDiff(original, original);
        assertEquals(0, diff.getAdditions().size());
        assertEquals(0, diff.getDeletions().size());
    }
}