def testVertexOutE(self):
"""
Vertex().outE() should ret a list of the edges that go 'out' from it
"""
u = Vertex()
v = Vertex()
e = u >> v
self.assertEqual(u.outE(), {e})
def testFiltersOutE(self):
"""Make sure filters work with Edges, on the outE property"""
t = Vertex(name="Frank")
u = Vertex(name="Bob")
v = Vertex(name="Sally")
e1 = t.edgeto(u, weight=4, label="First Edge")
e2 = t.edgeto(v, weight=5, label="Second Edge")
results = t.outE(weight=5).label
self.assertEqual(results, {'Second Edge'})
def testChainingSelectorsWithAttributeAccess(self):
"""
Chain selectors together and request an attribute at the end of the chain
"""
t = Vertex()
u = Vertex()
u.name = "I am U"
e = t >> u
should_be_i_am_u = t.outE().inV().name
self.assertEqual(should_be_i_am_u, {"I am U"})
def testChainingSelectors(self):
"""Chain {in,out}{_,E,V} calls together"""
t = Vertex()
u = Vertex()
e = t >> u
# >>> t.outE()
# {e}
# >>> e.inV()
# {u}
should_be_u = t.outE().inV()
self.assertEqual(should_be_u, {u})
