@Test
public void testGetOrCreateRelationship() throws Exception {
final Transaction tx = gdb.beginTx();
final Node david = graphDatabase.createNode(map("name", "David"));
final Node michael = graphDatabase.createNode(map("name", "Michael"));
final Relationship rel1 =
graphDatabase.getOrCreateRelationship(
"knows",
"whom",
"david_michael",
david,
michael,
"KNOWS",
map("whom", "david_michael"));
final Relationship rel2 =
graphDatabase.getOrCreateRelationship(
"knows",
"whom",
"david_michael",
david,
michael,
"KNOWS",
map("whom", "david_michael"));
assertEquals("david_michael", rel1.getProperty("whom"));
assertEquals("KNOWS", rel1.getType().name());
assertEquals(david, rel1.getStartNode());
assertEquals(michael, rel1.getEndNode());
assertEquals(rel1, rel2);
assertEquals(
rel1, gdb.index().forRelationships("knows").get("whom", "david_michael").getSingle());
tx.success();
tx.finish();
}
