Files
mcbebop/tests/test_list_events.py
rsp2k 6f2c36936e Keep every element of a list-shaped event
17 events are MAP_ITEM or LIST_ITEM: they arrive once per element, all
carrying the same argument names, so a flat store kept only whichever landed
last. SensorsStatesListChanged reports six sensors that way, and the
simulator's deliberate magnetometer fault was invisible through state() as a
result, which is exactly the fact preflight_check needs to see.

Entries are now keyed Command[element]_arg. Parrot marks these events but
never names the key; it is the first argument by convention.
2026-10-02 00:37:40 -06:00

53 lines
1.9 KiB
Python

"""List-shaped events must not overwrite each other.
MAP_ITEM and LIST_ITEM events arrive once per element with identical argument
names. A flat store keeps only the last, which silently hides exactly the kind
of fact a preflight check looks for.
"""
import asyncio
import pytest
from mcbebop.arsdk.session import DroneSession
from mcbebop.protocol import xml_index
from mcbebop.sim import FakeBebop
SENSORS = "common.CommonState.SensorsStatesListChanged"
def test_list_events_are_indexed():
listed = [c for c in xml_index.all_commands() if c.list_key]
assert len(listed) == 17, "both XML files together define 17 MAP_ITEM/LIST_ITEM events"
assert xml_index.get(SENSORS).list_key == "sensorName"
# A scalar event must not be treated as a list.
assert xml_index.get("common.CommonState.BatteryStateChanged").list_key is None
def test_every_sensor_survives_and_a_fault_is_visible():
async def run():
with FakeBebop() as sim:
session = DroneSession(ip=sim.host, discovery_port=sim.discovery_port)
await session.connect()
await session.request_full_state()
await asyncio.sleep(2.0)
values = session.values()
await session.disconnect()
return values
values = asyncio.run(run())
sensors = {
key.split("[", 1)[1].split("]", 1)[0]: value
for key, value in values.items()
if key.startswith("SensorsStatesListChanged[") and key.endswith("_sensorState")
}
assert len(sensors) == 6, f"expected all six self-tests, got {sorted(sensors)}"
faults = sorted(name for name, ok in sensors.items() if not ok)
assert faults == ["magnetometer"], "the simulator's deliberate fault must be reachable"
@pytest.mark.parametrize("name", [SENSORS, "common.CommonState.MassStorageInfoStateListChanged"])
def test_list_key_is_the_first_argument(name):
spec = xml_index.get(name)
assert spec.list_key == spec.args[0].name