294 lines
13 KiB
Python
294 lines
13 KiB
Python
from __future__ import annotations
|
|
|
|
import unittest
|
|
from datetime import datetime, timedelta, timezone
|
|
|
|
from cold_display_guard import BatchEngine, EngineSettings, Observation
|
|
|
|
|
|
UTC = timezone.utc
|
|
|
|
|
|
def obs(ts: datetime, counts: dict[str, int], trash: bool | int = False) -> Observation:
|
|
return Observation.from_dict(
|
|
{
|
|
"ts": ts.isoformat(),
|
|
"zone_counts": counts,
|
|
"trash_deposit": trash,
|
|
}
|
|
)
|
|
|
|
|
|
class BatchEngineTests(unittest.TestCase):
|
|
def setUp(self) -> None:
|
|
self.settings = EngineSettings(
|
|
camera_id="test_cam",
|
|
max_dwell_seconds=10,
|
|
trash_confirmation_seconds=5,
|
|
zone_ids=("r1c1", "r1c2"),
|
|
)
|
|
self.engine = BatchEngine(self.settings)
|
|
self.t0 = datetime(2026, 4, 27, 10, 0, tzinfo=UTC)
|
|
|
|
def test_starts_batch_when_zone_becomes_occupied(self) -> None:
|
|
events = self.engine.process(obs(self.t0, {"r1c1": 3}))
|
|
|
|
self.assertEqual([event["event"] for event in events], ["batch_started"])
|
|
self.assertEqual(events[0]["zone_id"], "r1c1")
|
|
self.assertEqual(events[0]["current_count"], 3)
|
|
self.assertEqual(events[0]["severity"], "info")
|
|
|
|
def test_consumes_batch_when_removed_before_threshold(self) -> None:
|
|
self.engine.process(obs(self.t0, {"r1c1": 2}))
|
|
events = self.engine.process(obs(self.t0 + timedelta(seconds=9), {"r1c1": 0}))
|
|
|
|
self.assertEqual([event["event"] for event in events], ["batch_consumed"])
|
|
self.assertEqual(events[0]["dwell_seconds"], 9)
|
|
|
|
def test_over_threshold_removal_waits_for_disposal_confirmation(self) -> None:
|
|
self.engine.process(obs(self.t0, {"r1c1": 2}))
|
|
events = self.engine.process(obs(self.t0 + timedelta(seconds=10), {"r1c1": 0}))
|
|
|
|
self.assertEqual([event["event"] for event in events], ["time_alarm", "batch_pending_disposal"])
|
|
self.assertEqual(events[0]["severity"], "alarm")
|
|
self.assertEqual(events[1]["dwell_seconds"], 10)
|
|
self.assertIn("disposal_deadline", events[1])
|
|
|
|
def test_removal_observation_at_threshold_emits_alarm_before_pending_disposal(self) -> None:
|
|
settings = EngineSettings(
|
|
camera_id="test_cam",
|
|
max_dwell_seconds=1200,
|
|
trash_confirmation_seconds=120,
|
|
zone_ids=("1",),
|
|
)
|
|
engine = BatchEngine(settings)
|
|
engine.process(obs(self.t0, {"1": 1}))
|
|
|
|
events = engine.process(obs(self.t0 + timedelta(seconds=1200), {"1": 0}))
|
|
|
|
self.assertEqual([event["event"] for event in events], ["time_alarm", "batch_pending_disposal"])
|
|
self.assertEqual(events[0]["severity"], "alarm")
|
|
self.assertEqual(events[0]["current_count"], 1)
|
|
self.assertEqual(events[0]["zone_index"], 1)
|
|
self.assertEqual(events[1]["severity"], "warning")
|
|
self.assertEqual(events[1]["state"], "pending_disposal")
|
|
|
|
def test_trash_deposit_confirms_pending_disposal(self) -> None:
|
|
self.engine.process(obs(self.t0, {"r1c1": 2}))
|
|
self.engine.process(obs(self.t0 + timedelta(seconds=11), {"r1c1": 0}))
|
|
events = self.engine.process(obs(self.t0 + timedelta(seconds=12), {"r1c1": 0}, trash=True))
|
|
|
|
self.assertEqual([event["event"] for event in events], ["batch_discarded"])
|
|
|
|
def test_missing_trash_deposit_escalates_warning_after_deadline(self) -> None:
|
|
self.engine.process(obs(self.t0, {"r1c1": 2}))
|
|
self.engine.process(obs(self.t0 + timedelta(seconds=11), {"r1c1": 0}))
|
|
events = self.engine.process(obs(self.t0 + timedelta(seconds=17), {"r1c1": 0}))
|
|
|
|
self.assertEqual([event["event"] for event in events], ["warning_escalated"])
|
|
self.assertEqual(events[0]["severity"], "warning")
|
|
self.assertEqual(events[0]["violation_reasons"], ["missing_disposal"])
|
|
|
|
def test_adding_food_before_zone_clears_raises_mixed_batch_violation(self) -> None:
|
|
self.engine.process(obs(self.t0, {"r1c1": 2}))
|
|
events = self.engine.process(obs(self.t0 + timedelta(seconds=1), {"r1c1": 3}))
|
|
|
|
self.assertEqual([event["event"] for event in events], ["mixed_batch_violation"])
|
|
self.assertEqual(events[0]["severity"], "warning")
|
|
self.assertEqual(events[0]["reason"], "food_added_before_zone_cleared")
|
|
|
|
def test_count_decrease_keeps_same_batch_active(self) -> None:
|
|
self.engine.process(obs(self.t0, {"r1c1": 3}))
|
|
events = self.engine.process(obs(self.t0 + timedelta(seconds=1), {"r1c1": 1}))
|
|
|
|
self.assertEqual([event["event"] for event in events], ["batch_count_changed"])
|
|
self.assertEqual(events[0]["previous_count"], 3)
|
|
self.assertEqual(events[0]["current_count"], 1)
|
|
|
|
def test_overdue_food_reappearing_before_disposal_raises_violation(self) -> None:
|
|
self.engine.process(obs(self.t0, {"r1c1": 2}))
|
|
self.engine.process(obs(self.t0 + timedelta(seconds=11), {"r1c1": 0}))
|
|
events = self.engine.process(obs(self.t0 + timedelta(seconds=12), {"r1c2": 1}))
|
|
|
|
self.assertEqual(
|
|
[event["event"] for event in events],
|
|
["overdue_return_violation", "batch_started"],
|
|
)
|
|
self.assertEqual(events[0]["appeared_zones"], ["r1c2"])
|
|
|
|
def test_time_alarm_emits_once_while_batch_remains_in_zone(self) -> None:
|
|
settings = EngineSettings(
|
|
camera_id="test_cam",
|
|
max_dwell_seconds=1200,
|
|
trash_confirmation_seconds=120,
|
|
zone_ids=("1",),
|
|
)
|
|
engine = BatchEngine(settings)
|
|
engine.process(obs(self.t0, {"1": 1}))
|
|
|
|
alarm_events = engine.process(obs(self.t0 + timedelta(seconds=1200), {"1": 1}))
|
|
repeated_events = engine.process(obs(self.t0 + timedelta(seconds=1300), {"1": 1}))
|
|
|
|
self.assertEqual([event["event"] for event in alarm_events], ["time_alarm"])
|
|
self.assertEqual(repeated_events, [])
|
|
self.assertEqual(alarm_events[0]["severity"], "alarm")
|
|
self.assertEqual(alarm_events[0]["zone_id"], "1")
|
|
self.assertEqual(alarm_events[0]["zone_index"], 1)
|
|
self.assertEqual(alarm_events[0]["zone_label"], "区域 1")
|
|
self.assertEqual(alarm_events[0]["dwell_seconds"], 1200)
|
|
self.assertEqual(alarm_events[0]["max_dwell_seconds"], 1200)
|
|
self.assertEqual(alarm_events[0]["current_count"], 1)
|
|
self.assertIn("alerted_at", alarm_events[0])
|
|
|
|
def test_alarmed_batch_removed_without_trash_deposit_escalates_warning(self) -> None:
|
|
settings = EngineSettings(
|
|
camera_id="test_cam",
|
|
max_dwell_seconds=1200,
|
|
trash_confirmation_seconds=120,
|
|
zone_ids=("1",),
|
|
)
|
|
engine = BatchEngine(settings)
|
|
engine.process(obs(self.t0, {"1": 1}))
|
|
engine.process(obs(self.t0 + timedelta(seconds=1200), {"1": 1}))
|
|
pending_events = engine.process(obs(self.t0 + timedelta(seconds=1300), {"1": 0}))
|
|
warning_events = engine.process(obs(self.t0 + timedelta(seconds=1421), {"1": 0}))
|
|
|
|
self.assertEqual([event["event"] for event in pending_events], ["batch_pending_disposal"])
|
|
self.assertEqual(pending_events[0]["severity"], "warning")
|
|
self.assertEqual(pending_events[0]["state"], "pending_disposal")
|
|
self.assertEqual(pending_events[0]["zone_index"], 1)
|
|
self.assertEqual(pending_events[0]["ended_at"], (self.t0 + timedelta(seconds=1300)).isoformat())
|
|
|
|
self.assertEqual([event["event"] for event in warning_events], ["warning_escalated"])
|
|
self.assertEqual(warning_events[0]["severity"], "warning")
|
|
self.assertEqual(warning_events[0]["state"], "warning")
|
|
self.assertEqual(warning_events[0]["reason"], "alarmed_batch_removed_without_trash_deposit")
|
|
self.assertEqual(warning_events[0]["zone_label"], "区域 1")
|
|
|
|
def test_alarmed_batch_removed_with_trash_deposit_is_discarded(self) -> None:
|
|
settings = EngineSettings(
|
|
camera_id="test_cam",
|
|
max_dwell_seconds=1200,
|
|
trash_confirmation_seconds=120,
|
|
zone_ids=("1",),
|
|
)
|
|
engine = BatchEngine(settings)
|
|
engine.process(obs(self.t0, {"1": 1}))
|
|
engine.process(obs(self.t0 + timedelta(seconds=1200), {"1": 1}))
|
|
engine.process(obs(self.t0 + timedelta(seconds=1300), {"1": 0}))
|
|
events = engine.process(obs(self.t0 + timedelta(seconds=1310), {"1": 0}, trash=True))
|
|
|
|
self.assertEqual([event["event"] for event in events], ["batch_discarded"])
|
|
self.assertEqual(events[0]["severity"], "info")
|
|
self.assertEqual(events[0]["state"], "discarded")
|
|
|
|
def test_same_observation_removal_and_trash_motion_discards_alerted_batch(self) -> None:
|
|
settings = EngineSettings(
|
|
camera_id="test_cam",
|
|
max_dwell_seconds=1200,
|
|
trash_confirmation_seconds=120,
|
|
zone_ids=("1",),
|
|
)
|
|
engine = BatchEngine(settings)
|
|
engine.process(obs(self.t0, {"1": 1}))
|
|
engine.process(obs(self.t0 + timedelta(seconds=1200), {"1": 1}))
|
|
|
|
events = engine.process(obs(self.t0 + timedelta(seconds=1300), {"1": 0}, trash=True))
|
|
later_events = engine.process(obs(self.t0 + timedelta(seconds=1421), {"1": 0}))
|
|
|
|
self.assertEqual([event["event"] for event in events], ["batch_pending_disposal", "batch_discarded"])
|
|
self.assertEqual(events[1]["state"], "discarded")
|
|
self.assertEqual(later_events, [])
|
|
|
|
def test_same_observation_trash_motion_discards_multiple_newly_pending_batches(self) -> None:
|
|
settings = EngineSettings(
|
|
camera_id="test_cam",
|
|
max_dwell_seconds=300,
|
|
trash_confirmation_seconds=120,
|
|
zone_ids=("1", "4"),
|
|
)
|
|
engine = BatchEngine(settings)
|
|
engine.process(obs(self.t0, {"1": 1, "4": 1}))
|
|
engine.process(obs(self.t0 + timedelta(seconds=300), {"1": 1, "4": 1}))
|
|
|
|
events = engine.process(obs(self.t0 + timedelta(seconds=360), {"1": 0, "4": 0}, trash=True))
|
|
later_events = engine.process(obs(self.t0 + timedelta(seconds=481), {"1": 0, "4": 0}))
|
|
|
|
self.assertEqual(
|
|
[event["event"] for event in events],
|
|
["batch_pending_disposal", "batch_pending_disposal", "batch_discarded", "batch_discarded"],
|
|
)
|
|
self.assertEqual([event["zone_id"] for event in events if event["event"] == "batch_discarded"], ["1", "4"])
|
|
self.assertEqual(later_events, [])
|
|
|
|
def test_restore_keeps_active_alarm_batch_after_runtime_restart(self) -> None:
|
|
settings = EngineSettings(
|
|
camera_id="test_cam",
|
|
max_dwell_seconds=1200,
|
|
trash_confirmation_seconds=120,
|
|
zone_ids=("1",),
|
|
)
|
|
engine = BatchEngine(settings)
|
|
engine.restore_from_events(
|
|
[
|
|
{
|
|
"event": "batch_started",
|
|
"zone_id": "1",
|
|
"batch_id": "batch_000124",
|
|
"started_at": self.t0.isoformat(),
|
|
"current_count": 1,
|
|
"state": "active",
|
|
},
|
|
{
|
|
"event": "time_alarm",
|
|
"zone_id": "1",
|
|
"batch_id": "batch_000124",
|
|
"started_at": self.t0.isoformat(),
|
|
"alerted_at": (self.t0 + timedelta(seconds=1200)).isoformat(),
|
|
"current_count": 1,
|
|
"state": "alerted",
|
|
},
|
|
],
|
|
active_zone_counts={"1": 1},
|
|
)
|
|
|
|
repeated_events = engine.process(obs(self.t0 + timedelta(seconds=1300), {"1": 1}))
|
|
removal_events = engine.process(obs(self.t0 + timedelta(seconds=1400), {"1": 0}))
|
|
|
|
self.assertEqual(repeated_events, [])
|
|
self.assertEqual([event["event"] for event in removal_events], ["batch_pending_disposal"])
|
|
self.assertEqual(removal_events[0]["batch_id"], "batch_000124")
|
|
self.assertEqual(removal_events[0]["dwell_seconds"], 1400)
|
|
|
|
def test_restore_skips_active_false_positive_when_latest_zone_count_is_empty(self) -> None:
|
|
settings = EngineSettings(
|
|
camera_id="test_cam",
|
|
max_dwell_seconds=1200,
|
|
trash_confirmation_seconds=120,
|
|
zone_ids=("3",),
|
|
)
|
|
engine = BatchEngine(settings)
|
|
engine.restore_from_events(
|
|
[
|
|
{
|
|
"event": "time_alarm",
|
|
"zone_id": "3",
|
|
"batch_id": "batch_000213",
|
|
"started_at": self.t0.isoformat(),
|
|
"alerted_at": (self.t0 + timedelta(seconds=1200)).isoformat(),
|
|
"current_count": 1,
|
|
"state": "alerted",
|
|
},
|
|
],
|
|
active_zone_counts={"3": 0},
|
|
)
|
|
|
|
events = engine.process(obs(self.t0 + timedelta(seconds=1300), {"3": 0}))
|
|
|
|
self.assertEqual(events, [])
|
|
self.assertEqual(engine.active_by_zone, {})
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|