);     }      @Test public void testEdgeIteratorSmall() {         DirectedMultigraph<String> g = new DirectedMultigraph<String>();         Set<DirectedTypedEdge<String>> control = new HashSet<DirectedTypedEdge<String>>();         for (int i = 0; i <= 0; ++i) {             DirectedTypedEdge<String> e = new SimpleDirectedTypedEdge<String>("type-0",0, i);             assertTrue(g.