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DECNET/tests/topology/test_persistence.py

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2.9 KiB
Python

"""MazeNET persistence-layer tests: generator → repo → hydrate roundtrip."""
import pytest
from decnet.topology.config import TopologyConfig
from decnet.topology.generator import generate
from decnet.topology.persistence import (
hydrate,
persist,
transition_status,
)
from decnet.topology.status import TopologyStatus, TopologyStatusError
from decnet.web.db.factory import get_repository
@pytest.fixture
async def repo(tmp_path):
r = get_repository(db_path=str(tmp_path / "persist.db"))
await r.initialize()
return r
def _config(**kw) -> TopologyConfig:
base = dict(
name="roundtrip",
depth=2,
branching_factor=2,
deckies_per_lan_min=1,
deckies_per_lan_max=2,
cross_edge_probability=0.0,
randomize_services=True,
seed=7,
)
base.update(kw)
return TopologyConfig(**base)
@pytest.mark.anyio
async def test_persist_then_hydrate(repo):
plan = generate(_config())
tid = await persist(repo, plan)
hydrated = await hydrate(repo, tid)
assert hydrated is not None
assert hydrated["topology"]["name"] == "roundtrip"
assert hydrated["topology"]["status"] == TopologyStatus.PENDING
assert len(hydrated["lans"]) == len(plan.lans)
assert len(hydrated["deckies"]) == len(plan.deckies)
assert len(hydrated["edges"]) == len(plan.edges)
# LANs round-trip with their DMZ flag and subnet.
by_name = {lan["name"]: lan for lan in hydrated["lans"]}
for planned in plan.lans:
assert by_name[planned.name]["subnet"] == planned.subnet
assert by_name[planned.name]["is_dmz"] == planned.is_dmz
# Deckies round-trip their services as a list, not a string.
for d in hydrated["deckies"]:
assert isinstance(d["services"], list)
@pytest.mark.anyio
async def test_transition_status_enforces_legality(repo):
plan = generate(_config())
tid = await persist(repo, plan)
await transition_status(repo, tid, TopologyStatus.DEPLOYING, reason="go")
await transition_status(repo, tid, TopologyStatus.ACTIVE)
topo = await repo.get_topology(tid)
assert topo["status"] == TopologyStatus.ACTIVE
# Can't go from active directly back to pending.
with pytest.raises(TopologyStatusError):
await transition_status(repo, tid, TopologyStatus.PENDING)
# Unknown topology raises ValueError, not silent no-op.
with pytest.raises(ValueError):
await transition_status(repo, "does-not-exist", TopologyStatus.ACTIVE)
@pytest.mark.anyio
async def test_hydrate_missing_topology(repo):
assert await hydrate(repo, "no-such-id") is None
@pytest.mark.anyio
async def test_config_snapshot_preserves_seed(repo):
plan = generate(_config(seed=12345))
tid = await persist(repo, plan)
topo = await repo.get_topology(tid)
assert topo["config_snapshot"]["seed"] == 12345
assert topo["config_snapshot"]["depth"] == 2