public static Graph getGraph() {
Graph g = Factory.createGraphMem();
g.add(
new Triple(
NodeFactory.createURI("http://example.com/subject"),
NodeFactory.createURI("http://example.com/predicate"),
NodeFactory.createURI("http://example.com/object")));
g.add(
new Triple(
NodeFactory.createBlankNode(BlankNodeId.create("a")),
NodeFactory.createURI("http://example.com/p1"),
NodeFactory.createBlankNode(BlankNodeId.create("b"))));
g.add(
new Triple(
NodeFactory.createBlankNode(BlankNodeId.create("b")),
NodeFactory.createURI("http://example.com/p2"),
NodeFactory.createLiteral("foo")));
g.add(
new Triple(
NodeFactory.createURI("http://example.com/ns/e"),
NodeFactory.createURI("http://example.com/ns/p5"),
NodeFactory.createLiteral("verify base works")));
return g;
}
public void testRetrieveTriplesByNode() {
Graph G = getGraph();
Node N = NodeFactory.createBlankNode(), M = NodeFactory.createBlankNode();
ReifierStd.reifyAs(G, N, triple("x R y"));
assertEquals("gets correct triple", triple("x R y"), ReifierStd.getTriple(G, N));
ReifierStd.reifyAs(G, M, triple("p S q"));
assertDiffer("the anon nodes must be distinct", N, M);
assertEquals("gets correct triple", triple("p S q"), ReifierStd.getTriple(G, M));
assertTrue("node is known bound", ReifierStd.hasTriple(G, M));
assertTrue("node is known bound", ReifierStd.hasTriple(G, N));
assertFalse(
"node is known unbound", ReifierStd.hasTriple(G, NodeFactory.createURI("any:thing")));
}
public void testReifyAs() {
Graph G = getGraph();
Node X = NodeFactory.createURI("some:uri");
assertEquals("node used", X, ReifierStd.reifyAs(G, X, triple("x R y")));
assertEquals("retrieves correctly", triple("x R y"), ReifierStd.getTriple(G, X));
}
