@Test
public void testGenerateGeometry() throws Exception {
m_seen_things.clear();
Graph g = new Graph();
// having a start increases coverage
INode n1 = g.addNode("Start", "", "", 0, ThingNoticer::new);
INode n2 = g.addNode("", "", "", 0, ThingNoticer::new);
DirectedEdge de = g.connect(n1, n2, 0, 0, 0, ThingNoticer::new);
UnionHelper uh = new UnionHelper();
uh.generateGeometry(g);
assertEquals(3, m_seen_things.size());
assertTrue(m_seen_things.contains(n1));
assertTrue(m_seen_things.contains(n2));
assertTrue(m_seen_things.contains(de));
}
