@Test
public void groupedModelToSkolemizedStringWithRDFFormatTest() throws Exception {

    assertEquals(removeWhitespace(expectedJsonld), removeWhitespace(RestUtils.groupedModelToSkolemizedString(model, RDFFormat.JSONLD, transformer, service)));
    assertEquals(expectedGroupedTurtle, RestUtils.groupedModelToSkolemizedString(model, RDFFormat.TURTLE, transformer, service));
    assertTrue(equalsIgnoreNewline(expectedGroupedRdfxml, RestUtils.groupedModelToSkolemizedString(model, RDFFormat.RDFXML, transformer, service)));
}