def test_construct_valued_directed(self):
dg = Graph({
"a":{"b":3},
"b":{"c":4},
"c":{"a":2}
}, directed=True, valued=True)
self.assertEqual(dg.get_value("a", "b"), 3)
self.assertEqual(dg.get_value("b", "c"), 4)
self.assertEqual(dg.get_value("c", "a"), 2)
def test_construct_valued_undirected(self):
graph = Graph({
"a":{"b":2, "c":3},
"b":{"a":2, "c":6},
"c":{"a":3, "b":6},
}, directed=False, valued=True)
self.assertEqual(graph.get_value("a", "b"), 2)
self.assertEqual(graph.get_value("a", "c"), 3)
self.assertEqual(graph.get_value("b", "c"), 6)
self.assertRaises(KeyError, graph.get_value("a", "d"))