Files
homelable/backend/tests/test_node_dedupe.py
T
Pouzor 60383bee64 fix: tolerate same device on multiple canvases in zigbee/zwave import
Zigbee and Z-Wave imports looked up canvas nodes by ieee_address with
scalar_one_or_none(), assuming one node per IEEE globally. A device placed
on two designs (one Node per canvas — a supported feature) made re-import
crash with MultipleResultsFound.

- Both mesh imports now refresh properties on every matching node instead
  of a single row (loop over .scalars().all()).
- approve_device guards against a true duplicate: same IEEE already on the
  SAME design reuses that node instead of inserting a second one.
- New node_dedupe service: loss-free repair keyed on (ieee, design_id).
  Collapses only genuine same-canvas duplicates (merges properties/services/
  missing fields, re-points edges + parent_id, drops self-loops/parallel
  edges). Cross-design placements preserved. Runs at start of both imports
  and bulk-approve. No-op on healthy DBs.
- IP correlation path already handled multiple nodes; left unchanged.

Tests: dedupe unit tests (collapse, cross-design preservation, edge/parent
re-point, idempotent), zigbee + zwave multi-canvas regression, approve
no-dupe guard.

ha-relevant: yes
2026-07-03 01:52:56 +02:00

118 lines
4.2 KiB
Python

"""Tests for the same-canvas node dedupe repair (app.services.node_dedupe)."""
import pytest
from sqlalchemy import select
from app.db.models import Design, Edge, Node
from app.services.node_dedupe import dedupe_nodes_by_ieee
async def _design(db, name="d1"):
d = Design(name=name)
db.add(d)
await db.flush()
return d
@pytest.mark.asyncio
async def test_collapses_same_ieee_same_design(db_session):
d = await _design(db_session)
keep = Node(
label="Sensor", type="zigbee_enddevice", design_id=d.id,
ieee_address="0xAAA", properties=[{"key": "IEEE", "value": "0xAAA", "visible": True}],
pos_x=100, pos_y=200,
)
db_session.add(keep)
await db_session.flush()
dup = Node(
label="Sensor", type="zigbee_enddevice", design_id=d.id,
ieee_address="0xAAA", ip="10.0.0.5",
properties=[{"key": "LQI", "value": "88", "visible": False}],
)
db_session.add(dup)
await db_session.flush()
removed = await dedupe_nodes_by_ieee(db_session)
assert removed == 1
nodes = (await db_session.execute(select(Node).where(Node.ieee_address == "0xAAA"))).scalars().all()
assert len(nodes) == 1
survivor = nodes[0]
assert survivor.id == keep.id # oldest kept
assert survivor.pos_x == 100 # canvas position preserved
assert survivor.ip == "10.0.0.5" # missing field filled from dup
keys = {p["key"] for p in survivor.properties}
assert keys == {"IEEE", "LQI"} # properties merged
@pytest.mark.asyncio
async def test_preserves_same_ieee_across_designs(db_session):
"""Same device on two canvases is valid — must NOT be merged."""
d1 = await _design(db_session, "d1")
d2 = await _design(db_session, "d2")
for d in (d1, d2):
db_session.add(Node(label="S", type="zigbee_enddevice", design_id=d.id, ieee_address="0xBBB"))
await db_session.flush()
removed = await dedupe_nodes_by_ieee(db_session)
assert removed == 0
nodes = (await db_session.execute(select(Node).where(Node.ieee_address == "0xBBB"))).scalars().all()
assert len(nodes) == 2
@pytest.mark.asyncio
async def test_repoints_edges_and_drops_dupes(db_session):
d = await _design(db_session)
keep = Node(label="A", type="server", design_id=d.id, ieee_address="0xCCC")
dup = Node(label="A", type="server", design_id=d.id, ieee_address="0xCCC")
other = Node(label="B", type="server", design_id=d.id)
db_session.add_all([keep, other])
await db_session.flush()
db_session.add(dup)
await db_session.flush()
# keep<->other and dup<->other (parallel after repoint), plus dup<->keep (self-loop).
db_session.add_all([
Edge(source=keep.id, target=other.id, type="ethernet", design_id=d.id),
Edge(source=dup.id, target=other.id, type="ethernet", design_id=d.id),
Edge(source=dup.id, target=keep.id, type="ethernet", design_id=d.id),
])
await db_session.flush()
removed = await dedupe_nodes_by_ieee(db_session)
assert removed == 1
edges = (await db_session.execute(select(Edge))).scalars().all()
# self-loop dropped, parallel edge collapsed -> a single keep<->other edge
assert len(edges) == 1
e = edges[0]
assert {e.source, e.target} == {keep.id, other.id}
@pytest.mark.asyncio
async def test_repoints_child_parent(db_session):
d = await _design(db_session)
keep = Node(label="Host", type="proxmox", design_id=d.id, ieee_address="0xDDD")
dup = Node(label="Host", type="proxmox", design_id=d.id, ieee_address="0xDDD")
db_session.add(keep)
await db_session.flush()
db_session.add(dup)
await db_session.flush()
child = Node(label="VM", type="vm", design_id=d.id, parent_id=dup.id)
db_session.add(child)
await db_session.flush()
await dedupe_nodes_by_ieee(db_session)
await db_session.refresh(child)
assert child.parent_id == keep.id
@pytest.mark.asyncio
async def test_idempotent_noop_when_unique(db_session):
d = await _design(db_session)
db_session.add(Node(label="X", type="server", design_id=d.id, ieee_address="0xEEE"))
await db_session.flush()
assert await dedupe_nodes_by_ieee(db_session) == 0
assert await dedupe_nodes_by_ieee(db_session) == 0