def test_json_back_and_forth(self) -> None:
""" test converting back and forth from and to json """
# GIVEN
input_dict = TestCoordinationInputValidation.get_default_inputs()
# WHEN
offset = Offset(**input_dict)
# THEN converting back and forth should in the end give the same result
offset_dict = offset.to_json()
offset_from_json = Offset.from_json(offset_dict=offset_dict)
self.assertDictEqual(offset_dict, offset_from_json.to_json())
def test_incorrect_offset(self) -> None:
"""
Test that validation of incorrect offset raises SafetyViolation.
:return:
"""
# GIVEN
offset = Offset(from_id="sg3", to_id="sg4", seconds=20)
fts_org = FixedTimeSchedule(greenyellow_intervals=dict(
sg1=[GreenYellowInterval(start_greenyellow=15, end_greenyellow=35)],
sg2=[GreenYellowInterval(start_greenyellow=45, end_greenyellow=65)],
sg3=[GreenYellowInterval(start_greenyellow=10, end_greenyellow=40),
GreenYellowInterval(start_greenyellow=50, end_greenyellow=70)],
sg4=[GreenYellowInterval(start_greenyellow=30, end_greenyellow=40),
GreenYellowInterval(start_greenyellow=69, end_greenyellow=90)]),
period=100)
signalgroup3 = TestFTSOtherSGRelationValidation.get_default_signalgroup(name="sg3")
signalgroup4 = TestFTSOtherSGRelationValidation.get_default_signalgroup(name="sg4")
intersection = TestFTSOtherSGRelationValidation.get_default_intersection(
additional_signalgroups=[signalgroup3, signalgroup4], offsets=[offset])
for interval_shift in range(2):
with self.subTest(f"interval_shift={interval_shift}"):
fts = deepcopy(fts_org)
fts._greenyellow_intervals["sg4"] = fts._greenyellow_intervals["sg4"][:interval_shift] + \
fts._greenyellow_intervals["sg4"][interval_shift:]
with self.assertRaises(SafetyViolation):
# WHEN validating
validate_other_sg_relations(intersection=intersection, fts=fts)
def test_successful_validation(self) -> None:
""" Test initializing Coordination object with correct input """
# GIVEN
input_dict = TestCoordinationInputValidation.get_default_inputs()
# WHEN
Offset(**input_dict)
def test_non_unique_ids(self) -> None:
""" Test giving two identical ids to initialize a Coordination """
# GIVEN
input_dict = TestCoordinationInputValidation.get_default_inputs()
input_dict["from_id"] = "1"
input_dict["to_id"] = "1"
with self.assertRaises(ValueError):
Offset(**input_dict)
def test_wrong_datatype_for_ids(self) -> None:
""" Test giving wrong datatype to Coordionation for ids """
# GIVEN
input_dict = TestCoordinationInputValidation.get_default_inputs()
input_dict["from_id"] = 1
input_dict["to_id"] = 2
# WHEN initializing the offset
offset = Offset(**input_dict)
# Should not give an error (datatype is converted to string)
self.assertEqual(offset.from_id, "1")
self.assertEqual(offset.to_id, "2")
def get_default_inputs() -> Dict:
""" Function to get default (valid) inputs for Intersection() """
signalgroups = [SignalGroup(id=f"sg{i+1}", traffic_lights=[TrafficLight(capacity=1800, lost_time=1)],
min_greenyellow=10, max_greenyellow=80, min_red=10, max_red=80) for i in range(6)]
conflicts = [Conflict(id1="sg1", id2="sg2", setup12=1, setup21=2),
Conflict(id1="sg1", id2="sg6", setup12=1, setup21=2),
Conflict(id1="sg2", id2="sg6", setup12=1, setup21=2)]
sync_starts = [SyncStart(from_id="sg1", to_id="sg3")]
offsets = [Offset(from_id="sg1", to_id="sg4", seconds=10)]
periodic_orders = [PeriodicOrder(order=["sg1", "sg2", "sg6"])]
greenyellow_leads = [GreenyellowLead(from_id="sg1", to_id="sg5", min_seconds=1, max_seconds=10)]
greenyellow_trails = [GreenyellowTrail(from_id="sg5", to_id="sg1", min_seconds=2, max_seconds=8)]
return dict(signalgroups=signalgroups, conflicts=conflicts, sync_starts=sync_starts,
offsets=offsets, greenyellow_leads=greenyellow_leads, greenyellow_trails=greenyellow_trails,
periodic_orders=periodic_orders)
def from_json(intersection_dict: Dict) -> Intersection:
"""
Loading intersection from json (expected same json structure as generated with to_json)
:param intersection_dict:
:return: intersection object
"""
# load signal groups
signalgroups = [
SignalGroup.from_json(signalgroup_dict=signalgroup_dict)
for signalgroup_dict in intersection_dict["signalgroups"]
]
if "periodic_orders" in intersection_dict:
periodic_orders = [
PeriodicOrder.from_json(order_dict=order_dict)
for order_dict in intersection_dict["periodic_orders"]
]
else:
periodic_orders = []
# load conflicts
conflicts = [
Conflict.from_json(conflict_dict=conflict_dict)
for conflict_dict in intersection_dict["conflicts"]
]
# load other relations (synchronous starts, offsets and greenyellow_lead)
sync_starts = []
offsets = []
greenyellow_leads = []
greenyellow_trails = []
for other_relation_dict in intersection_dict["other_relations"]:
assert other_relation_dict["from_start_gy"] == other_relation_dict["to_start_gy"], \
"besides conflicts, at the moment the cloud api can only handle synchronous starts, offsets, " \
"greenyellow-leads and greenyellow-trails."
if other_relation_dict[
"from_start_gy"] is True and other_relation_dict[
"to_start_gy"] is True:
if other_relation_dict["min_time"] == other_relation_dict[
"max_time"]:
if other_relation_dict["min_time"] == 0: # sync start
sync_starts.append(
SyncStart.from_json(
sync_start_dict=other_relation_dict))
else: # offset
offsets.append(
Offset.from_json(offset_dict=other_relation_dict))
else: # greenyellow-leads
greenyellow_leads.append(
GreenyellowLead.from_json(
json_dict=other_relation_dict))
elif other_relation_dict[
"from_start_gy"] is False and other_relation_dict[
"to_start_gy"] is False:
greenyellow_trails.append(
GreenyellowTrail.from_json(json_dict=other_relation_dict))
return Intersection(signalgroups=signalgroups,
conflicts=conflicts,
sync_starts=sync_starts,
offsets=offsets,
greenyellow_leads=greenyellow_leads,
greenyellow_trails=greenyellow_trails,
periodic_orders=periodic_orders)