@Test
public void hasRelationshipTo() {

	setUpUriInfo();
	JsonApiDocument document = new JsonApiDocument(dummyObj01, uriInfoMock);
	document.addRelationship("rel1", dummyObj42, uri);
	Assert.assertTrue(document.hasRelationshipTo(dummyObj42));
	Assert.assertFalse(document.hasRelationshipTo(dummyObj43));
}