@Test
public void groupedModelToSkolemizedStringTest() throws Exception {

    assertEquals(removeWhitespace(expectedJsonld), removeWhitespace(RestUtils.groupedModelToSkolemizedString(model, "jsonld", transformer, service)));
    assertEquals(expectedGroupedTurtle, RestUtils.groupedModelToSkolemizedString(model, "turtle", transformer, service));
    assertTrue(equalsIgnoreNewline(expectedGroupedRdfxml, RestUtils.groupedModelToSkolemizedString(model, "rdf/xml", transformer, service)));
    assertEquals(removeWhitespace(expectedJsonld), removeWhitespace(RestUtils.groupedModelToSkolemizedString(model, "something", transformer, service)));
}