def test_positive_quantitative_voc(cid_3node: CID) -> None:
cid_3node.remove_edge("S", "D")
assert quantitative_voc(cid_3node, "S") == pytest.approx(
1) # the agent at D no longer knows the value of S
def test_invalid_target(cid_3node: CID) -> None:
with pytest.raises(KeyError):
quantitative_voc(cid_3node, "_")
def test_no_quantitative_voc(cid_3node: CID) -> None:
assert set(admits_voc_list(cid_3node)) == {"U", "S"}
assert quantitative_voc(cid_3node, "S") == pytest.approx(
0) # in this parameterisation, S has no value of control