@Test
public void testGraph() throws Exception {
Graph graph = new PeopleGraphImpl().graphFor(1);
graph.add(new PersonImpl(1, "Zequinha", 10.0));
graph.add(new PersonImpl(2, "Barbosa", 20.0));
List<Person> closest = graph.getClosestFriends(5);
assertEquals(2, closest.size());
}
