def test_supplier_groups_inner_cycle():
nodes = ["x1", "x2", "x3"]
edges = [("x1", "x2"), ("x2", "x3"), ("x3", "x2")]
nodes = {
n: Node(logic=dict(), tags=frozenset(["supplier"]))
for n in nodes
}
nodes.update({"indicator": Node(tags=frozenset(["indicator"]))})
sg = SystemGraph(nodes=nodes, edges=[Edge(src=s, dst=d) for s, d in edges])
assert len(sg.supplier_groups) == 0
def test_supplier_groups_basic():
nodes = ["x1", "x2", "x3", "x4", "x5", "x6"]
edges = [("x1", "x2"), ("x2", "x3"), ("x4", "x5"), ("x4", "x6")]
nodes = {
n: Node(logic=dict(), tags=frozenset(["supplier"]))
for n in nodes
}
nodes.update({"indicator": Node(tags=frozenset(["indicator"]))})
sg = SystemGraph(nodes=nodes, edges=[Edge(src=s, dst=d) for s, d in edges])
expected = {"x1": {"x1", "x2", "x3"}, "x4": {"x4", "x5", "x6"}}
assert sg.supplier_groups == expected
def test_sg_hash_very_close_extra_node(minimal: SystemGraph):
other = copy.deepcopy(minimal)
pre = hash(minimal)
other.nodes["new"] = Node()
assert pre != hash(other)