def test_addOutEdge(self):
v4 = Vertex("4", 200, 100)
v5 = Vertex("5", 100, 100)
v45 = Edge(v4, v5, 2)
v54 = Edge(v5, v4, 3)
nose.tools.assert_raises(GraphError, v5.addOutEdge, v45)
v5.addOutEdge(v54)
assert v5.getNumOutEdges() == 1
nose.tools.assert_raises(GraphError, v5.addOutEdge, v54)
def test_getOutEdge(self):
v4 = Vertex("4", 200, 100)
v5 = Vertex("5", 100, 100)
e45 = Edge(v4, v5, 2)
e54 = Edge(v5, v4, 3)
v5.addOutEdge(e54)
assert e54 == v5.getOutEdge("4")
nose.tools.assert_raises(GraphError, v5.getOutEdge, "10")
assert v5.hasOutEdge("4")
assert not v5.hasOutEdge("11")
