def test_add_non_directed_edge(self):
g = Grafellow()
g.add_non_directed_edge('zach', 'person', 'laura', 'person', edge_type='friends')
self.assertTrue(g.get_node('zach','person') == {})
self.assertTrue(g.get_node('laura','person') == {})
self.assertTrue('laura' in g.node_edges('zach', 'person', other_node_type='person'))
def test_add_node_with_data(self):
g = Grafellow()
attrs = {'languages': ['python', 'ruby', 'others']}
self.assertTrue(g.add_node('zach', 'person', attrs))
self.assertTrue(g.get_node('zach','person'))
