2026-07-30 18:52:01 +02:00

82 lines
2.8 KiB
Python

import dataclasses
import pytest
from tsi_sim.config import SimConfig, SweepConfig
def test_expand_cardinality_and_u0_strategy_dedup():
sweep = SweepConfig(
n_nodes=[1000, 2000],
stake_dist=["uniform"],
latency=[0, 4],
max_uncles=[0, 1, 2],
uncle_strategy=["oldest", "random"],
replicates=3,
base={"k": 16, "epochs": 5},
)
configs = sweep.expand()
# U=0 keeps only the first strategy; U>0 keeps both.
# per (n,dist,lat): U0 x1 strat + U1 x2 + U2 x2 = 5 strat-U combos, x3 reps = 15
# x 2 n_nodes x 1 dist x 2 lat = 60
assert len(configs) == 60
u0 = [c for c in configs if c.max_uncles == 0]
assert all(c.uncle_strategy == "oldest" for c in u0)
assert {c.replicate for c in configs} == {0, 1, 2}
def test_base_propagation():
sweep = SweepConfig(n_nodes=[500], stake_dist=["pareto"], latency=[2], max_uncles=[0],
uncle_strategy=["oldest"], replicates=1,
base={"k": 32, "epochs": 7, "fixed_point": True})
(c,) = sweep.expand()
assert c.k == 32 and c.epochs == 7 and c.fixed_point is True and c.stake_dist == "pareto"
@pytest.mark.parametrize("kwargs", [
{"k": 0}, {"epochs": 0}, {"n_nodes": 0}, {"latency": -1}, {"max_uncles": -1},
{"uncle_window": 0}, {"lottery_chunks": 0}, {"uncle_random_p": 1.5}, {"f": 0.0},
{"f": 1.0}, {"beta": 0.0}, {"genesis_d_factor": 0.0}, {"pareto_shape": 0.0},
{"stake_dist": "zipf"}, {"uncle_strategy": "newest"},
])
def test_validation_rejects_bad_fields(kwargs):
with pytest.raises(ValueError):
SimConfig(**kwargs)
def test_unknown_sweep_key_rejected():
with pytest.raises(ValueError, match="unknown sweep keys"):
SweepConfig.from_dict({"latencies": [0, 1], "base": {}}) # typo: latencies vs latency
def test_from_dict_roundtrip_ok():
sw = SweepConfig.from_dict({"latency": [0, 3], "max_uncles": [0, 2], "replicates": 2,
"base": {"k": 8, "epochs": 4}})
assert sw.latency == [0, 3] and sw.replicates == 2 and sw.base["k"] == 8
def test_key_covers_every_field():
# Guard against the silent shared-RNG bug: key() must reflect all run-affecting fields.
ignored = {"root_seed"} # root_seed enters _entropy separately, not via key()
names = {f.name for f in dataclasses.fields(SimConfig)} - ignored
a = SimConfig()
for name in names:
cur = getattr(a, name)
alt = _perturb(cur)
b = dataclasses.replace(a, **{name: alt})
assert a.key() != b.key(), f"key() does not distinguish field {name!r}"
def _perturb(v):
if isinstance(v, bool):
return not v
if isinstance(v, int):
return v + 1
if isinstance(v, float):
return v + 0.001
if v == "uniform":
return "pareto"
if v == "oldest":
return "random"
return v