def test_orders_dropped_off_event(self):
"""Test to verify the mechanics of orders being dropped off"""
# Constants
initial_time = hour_to_sec(14)
on_time = time(14, 0, 0)
off_time = time(16, 0, 0)
# Services
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
# Creates an order and sends the picked up event
order = Order(order_id=45, user=User(env=env))
dispatcher.assigned_orders[order.order_id] = order
courier = Courier(on_time=on_time, off_time=off_time)
dispatcher.orders_dropped_off_event(orders={order.order_id: order}, courier=courier)
env.run(until=initial_time + hour_to_sec(1))
# Verify order properties are modified and it is allocated correctly
self.assertEqual(order.state, 'dropped_off')
self.assertEqual(order.drop_off_time, sec_to_time(initial_time))
self.assertIn(order.order_id, dispatcher.fulfilled_orders.keys())
self.assertEqual(dispatcher.assigned_orders, {})
self.assertIn(order.order_id, courier.fulfilled_orders)
def test_submit_courier_assigned(self):
"""Test to verify how a user submits and order and doesn't cancel since a courier is assigned"""
# Constants
random.seed(666)
# Services
env = Environment(initial_time=hour_to_sec(12))
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
# Create a user, have it submit an order immediately and after some minutes, assign a courier
user = User(cancellation_policy=self.cancellation_policy,
dispatcher=dispatcher,
env=env)
user.submit_order_event(
order_id=self.order_id,
pick_up_at=self.pick_up_at,
drop_off_at=self.drop_off_at,
placement_time=self.placement_time,
expected_drop_off_time=self.expected_drop_off_time,
preparation_time=self.preparation_time,
ready_time=self.ready_time)
env.process(TestsDispatcher.assign_courier(user, env, dispatcher))
env.run(until=hour_to_sec(13))
# Verify order is created but not canceled because a courier was assigned
self.assertTrue(user.order)
self.assertIsNotNone(user.order.courier_id)
self.assertIsNone(user.order.cancellation_time)
self.assertEqual(dispatcher.assigned_orders,
{self.order_id: user.order})
self.assertEqual(dispatcher.unassigned_orders, {})
self.assertEqual(user.condition, 'waiting')
def test_submit_wait_for_order(self, *args):
"""Test to verify how a user submits an order but doesn't cancel even without courier, deciding to wait"""
# Constants
random.seed(157)
# Services
env = Environment(initial_time=hour_to_sec(12))
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
# Create a user and have it submit an order immediately
user = User(cancellation_policy=self.cancellation_policy,
dispatcher=dispatcher,
env=env)
user.submit_order_event(
order_id=self.order_id,
pick_up_at=self.pick_up_at,
drop_off_at=self.drop_off_at,
placement_time=self.placement_time,
expected_drop_off_time=self.expected_drop_off_time,
preparation_time=self.preparation_time,
ready_time=self.ready_time)
env.run(until=hour_to_sec(13))
# Verify order is created but not canceled, disregarding the lack of a courier
self.assertTrue(user.order)
self.assertIsNone(user.order.courier_id)
self.assertIsNone(user.order.cancellation_time)
self.assertEqual(dispatcher.unassigned_orders,
{self.order_id: user.order})
self.assertEqual(user.condition, 'waiting')
def test_pick_up_waiting_time(self, osrm):
"""Test to verify the mechanics of the waiting time are correctly designed"""
# Constants
random.seed(290)
on_time = time(6, 0, 0)
off_time = time(8, 0, 0)
# Services
env = Environment(initial_time=hour_to_sec(6))
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
# Creates a courier and sets it to pick up stuff
courier = Courier(
acceptance_policy=self.acceptance_policy,
dispatcher=dispatcher,
env=env,
movement_evaluation_policy=self.movement_evaluation_policy,
movement_policy=self.movement_policy,
courier_id=self.courier_id,
vehicle=self.vehicle,
location=self.start_location,
acceptance_rate=0.01,
on_time=on_time,
off_time=off_time)
order = Order(ready_time=time(6, 15, 0), order_id=23)
stop = Stop(orders={order.order_id: order}, type=StopType.PICK_UP)
env.process(courier._execute_stop(stop))
dispatcher.state.interrupt()
# Run until there are no more events and assert the courier experienced waiting time.
env.run(until=hour_to_sec(7))
self.assertTrue(order.pick_up_time >= time(
6, int(order.ready_time.minute + order.pick_up_service_time / 60)))
# For another test, if the order's ready time has expired, the courier doesn't experience waiting time
env = Environment(initial_time=hour_to_sec(6))
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
courier = Courier(
acceptance_policy=self.acceptance_policy,
dispatcher=dispatcher,
env=env,
movement_evaluation_policy=self.movement_evaluation_policy,
movement_policy=self.movement_policy,
courier_id=self.courier_id,
vehicle=self.vehicle,
location=self.start_location,
acceptance_rate=0.01,
on_time=on_time,
off_time=off_time)
order = Order(ready_time=time(4, 0, 0), order_id=23)
stop = Stop(orders={order.order_id: order}, type=StopType.PICK_UP)
env.process(courier._execute_stop(stop))
dispatcher.state.interrupt()
env.run(until=hour_to_sec(7))
self.assertTrue(
time(order.pick_up_time.hour, order.pick_up_time.minute) <= time(
6, int(order.pick_up_service_time / 60)))
def test_courier_available_event(self):
"""Test to verify the mechanics of how the dispatcher sets a courier to available"""
# Constants
initial_time = hour_to_sec(14)
on_time = time(14, 0, 0)
off_time = time(15, 0, 0)
service_time = min_to_sec(6)
# Services
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
# Creates a courier and sets it to the picking state
courier = Courier(dispatcher=dispatcher, env=env, courier_id=32, on_time=on_time, off_time=off_time)
dispatcher.idle_couriers = {courier.courier_id: courier}
env.process(courier._picking_up_state(
orders={
21: Order(drop_off_service_time=service_time, ready_time=time(14, 20, 0))
}
))
env.run(until=initial_time + min_to_sec(10))
# Verify courier properties are modified and it is allocated correctly
self.assertEqual(courier.condition, 'picking_up')
self.assertIn(courier.courier_id, dispatcher.picking_up_couriers.keys())
self.assertEqual(dispatcher.idle_couriers, {})
def test_movement_state(self, osrm):
"""Test to evaluate how a courier moves with dummy movement"""
# Constants
random.seed(365)
on_time = time(0, 0, 0)
off_time = time(5, 0, 0)
env = Environment()
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
# Creates a courier and runs a simulation
courier = Courier(
acceptance_policy=self.acceptance_policy,
dispatcher=dispatcher,
env=env,
movement_evaluation_policy=self.movement_evaluation_policy,
movement_policy=self.movement_policy,
courier_id=self.courier_id,
vehicle=self.vehicle,
location=self.start_location,
on_time=on_time,
off_time=off_time)
env.run(until=hour_to_sec(4) + min_to_sec(5))
# Asserts that the courier moved and is is in a different location
self.assertEqual(courier.condition, 'moving')
self.assertNotEqual(courier.location, self.start_location)
self.assertIn(courier.courier_id, dispatcher.moving_couriers.keys())
def test_always_idle(self, osrm):
"""Test to evaluate a courier never moving"""
# Constants
random.seed(187)
on_time = time(0, 0, 0)
off_time = time(5, 0, 0)
# Services
env = Environment()
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
# Creates a courier and runs a simulation
courier = Courier(
acceptance_policy=self.acceptance_policy,
dispatcher=dispatcher,
env=env,
movement_evaluation_policy=self.movement_evaluation_policy,
movement_policy=self.movement_policy,
courier_id=self.courier_id,
vehicle=self.vehicle,
location=self.start_location,
on_time=on_time,
off_time=off_time)
env.run(until=hour_to_sec(4))
# Asserts that the courier is idle and never moved
self.assertEqual(courier.condition, 'idle')
self.assertEqual(courier.location, self.start_location)
self.assertIn(courier.courier_id, dispatcher.idle_couriers.keys())
def test_prepositioning_notification_rejected_event(self):
"""Test to verify the mechanics of a prepositioning notification being rejected by a courier"""
# Constants
initial_time = hour_to_sec(14)
on_time = time(14, 0, 0)
off_time = time(15, 0, 0)
# Services
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
# Creates a prepositioning notification, a courier and sends the rejected event
instruction = Route(
stops=[
Stop(position=0, type=StopType.PREPOSITION),
Stop(position=1, type=StopType.PREPOSITION)
]
)
courier = Courier(dispatcher=dispatcher, env=env, courier_id=981, on_time=on_time, off_time=off_time)
notification = Notification(courier=courier, instruction=instruction, type=NotificationType.PREPOSITIONING)
dispatcher.notification_rejected_event(notification=notification, courier=courier)
env.run(until=initial_time + min_to_sec(30))
# Verify order and courier properties are modified and it is allocated correctly
self.assertIsNone(courier.active_route)
def test_notify_prepositioning_event_reject_idle(self, osrm):
"""Test to evaluate how a courier handles a prepositioning notification while being idle and rejects it"""
# Constants
random.seed(672)
on_time = time(6, 0, 0)
off_time = time(8, 0, 0)
# Services
env = Environment(initial_time=hour_to_sec(6))
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
# Creates a courier with low acceptance rate and immediately send a prepositioning notification
courier = Courier(
acceptance_policy=self.acceptance_policy,
dispatcher=dispatcher,
env=env,
movement_evaluation_policy=self.movement_evaluation_policy,
movement_policy=self.movement_policy,
courier_id=self.courier_id,
vehicle=self.vehicle,
location=self.start_location,
acceptance_rate=0.01,
on_time=on_time,
off_time=off_time)
instruction = Route(orders=None,
stops=[
Stop(location=self.pick_up_at,
position=0,
orders=None,
type=StopType.PREPOSITION,
visited=False)
])
notification = Notification(courier=courier,
instruction=instruction,
type=NotificationType.PREPOSITIONING)
env.process(courier.notification_event(notification))
env.run(until=hour_to_sec(7))
# Asserts that the courier didn't fulfill the route
self.assertIsNone(courier.active_route)
self.assertIsNone(courier.active_stop)
self.assertEqual(courier.location, self.start_location)
self.assertEqual(courier.condition, 'idle')
self.assertIn(courier.courier_id, dispatcher.idle_couriers.keys())
def test_orders_picked_up_event(self):
"""Test to verify the mechanics of orders being picked up"""
# Constants
initial_time = hour_to_sec(14)
# Services
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
# Creates an order and sends the picked up event
order = Order(order_id=45)
dispatcher.orders_picked_up_event(orders={order.order_id: order})
env.run(until=initial_time + hour_to_sec(1))
# Verify order properties are modified
self.assertEqual(order.state, 'picked_up')
self.assertEqual(order.pick_up_time, sec_to_time(initial_time))
def test_cancel_order_event(self):
"""Test to verify how the dispatcher cancels an order after certain time"""
random.seed(741)
# Services
env = Environment(initial_time=hour_to_sec(12))
dispatcher = Dispatcher(
env=env,
cancellation_policy=self.dispatcher_cancellation_policy,
matching_policy=DummyMatchingPolicy()
)
# Create a user and have it submit an order immediately, avoiding user cancellation
user = User(cancellation_policy=self.cancellation_policy, dispatcher=dispatcher, env=env)
user.submit_order_event(
order_id=self.order_id,
pick_up_at=self.pick_up_at,
drop_off_at=self.drop_off_at,
placement_time=self.placement_time,
expected_drop_off_time=self.expected_drop_off_time,
preparation_time=self.preparation_time,
ready_time=self.ready_time
)
env.run(until=hour_to_sec(14))
# Verify order is canceled by the dispatcher
self.assertTrue(user.order)
self.assertIsNone(user.order.courier_id)
self.assertIsNotNone(user.order.cancellation_time)
self.assertEqual(dispatcher.unassigned_orders, {})
self.assertIn(self.order_id, dispatcher.canceled_orders.keys())
self.assertEqual(
user.order.cancellation_time,
(
datetime.combine(date.today(), self.preparation_time) +
timedelta(seconds=settings.DISPATCHER_WAIT_TO_CANCEL)
).time()
)
self.assertEqual(user.condition, 'canceled')
def test_log_off(self):
"""Test to evaluate the scheduling of the courier logging off works correctly"""
# Constants
random.seed(888)
on_time = time(8, 0, 0)
off_time = time(14, 0, 0)
initial_time = hour_to_sec(8)
# Verifies for two test cases the scheduling of the courier logging off works correctly.
# In one case, the courier log off event doesn't yet happen. In the other test, it does
# Test 1: the courier achieves the log off after a given time
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
courier = Courier(env=env,
dispatcher=dispatcher,
courier_id=84,
on_time=on_time,
off_time=off_time)
env.run(until=initial_time + hour_to_sec(10))
self.assertEqual(dispatcher.logged_off_couriers,
{courier.courier_id: courier})
self.assertEqual(dispatcher.idle_couriers, {})
self.assertEqual(courier.condition, 'logged_off')
# Test 2: the courier doesn't achieve the log off because the simulation ends before
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
courier = Courier(env=env,
dispatcher=dispatcher,
courier_id=84,
on_time=on_time,
off_time=off_time)
env.run(until=initial_time + hour_to_sec(2))
self.assertEqual(dispatcher.idle_couriers,
{courier.courier_id: courier})
self.assertEqual(dispatcher.logged_off_couriers, {})
self.assertEqual(courier.condition, 'idle')
def test_order_not_canceled(self):
"""
Test to verify that the dispatcher doesn't cancel an order if it has a courier assigned.
The user doesn't see a courier but decides not to cancel.
"""
random.seed(192)
# Services
env = Environment(initial_time=hour_to_sec(12))
dispatcher = Dispatcher(
env=env,
cancellation_policy=self.dispatcher_cancellation_policy,
matching_policy=DummyMatchingPolicy()
)
# Create a user, have it submit an order immediately and after some minutes, assign a courier.
# Courier is assigned after user cancellation time has expired
user = User(cancellation_policy=self.cancellation_policy, dispatcher=dispatcher, env=env)
user.submit_order_event(
order_id=self.order_id,
pick_up_at=self.pick_up_at,
drop_off_at=self.drop_off_at,
placement_time=self.placement_time,
expected_drop_off_time=self.expected_drop_off_time,
preparation_time=self.preparation_time,
ready_time=self.ready_time
)
env.process(self.assign_courier(user, env, dispatcher))
env.run(until=hour_to_sec(13))
# Verify order is created but not canceled because a courier was assigned
self.assertTrue(user.order)
self.assertIsNotNone(user.order.courier_id)
self.assertIsNone(user.order.cancellation_time)
self.assertEqual(dispatcher.assigned_orders, {self.order_id: user.order})
self.assertEqual(dispatcher.unassigned_orders, {})
self.assertEqual(user.condition, 'waiting')
def test_courier_idle_event(self, *args):
"""Test to verifiy the mechanics of how a courier is set to idle by the dispatcher"""
# Constants
initial_time = hour_to_sec(14)
courier_id = 85
time_delta = min_to_sec(10)
random.seed(26)
on_time = time(14, 0, 0)
off_time = time(15, 0, 0)
# Verifies 3 test cases: when the courier is busy, available or idle.
# For each test case, assert the courier starts in a set and ends up in the idle set
# Test 1: courier is busy
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
courier = Courier(dispatcher=dispatcher, env=env, courier_id=courier_id, on_time=on_time, off_time=off_time)
dispatcher.moving_couriers = {courier.courier_id: courier}
dispatcher.courier_idle_event(courier)
env.run(until=initial_time + time_delta)
self.assertIn(courier.courier_id, dispatcher.idle_couriers.keys())
self.assertEqual(dispatcher.moving_couriers, {})
self.assertEqual(dispatcher.picking_up_couriers, {})
# Test 2: courier is available
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
courier = Courier(dispatcher=dispatcher, env=env, courier_id=courier_id, on_time=on_time, off_time=off_time)
dispatcher.picking_up_couriers = {courier.courier_id: courier}
dispatcher.courier_idle_event(courier)
env.run(until=initial_time + time_delta)
self.assertIn(courier.courier_id, dispatcher.idle_couriers.keys())
self.assertEqual(dispatcher.moving_couriers, {})
self.assertEqual(dispatcher.picking_up_couriers, {})
# Test 3: courier is idle
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
courier = Courier(dispatcher=dispatcher, env=env, courier_id=courier_id, on_time=on_time, off_time=off_time)
dispatcher.idle_couriers = {courier.courier_id: courier}
dispatcher.courier_idle_event(courier)
env.run(until=initial_time + time_delta)
self.assertIn(courier.courier_id, dispatcher.idle_couriers.keys())
self.assertEqual(dispatcher.moving_couriers, {})
self.assertEqual(dispatcher.picking_up_couriers, {})
def test_courier_busy_event(self, *args):
"""Test to verify the mechanics of how the dispatcher sets a courier to busy"""
# Constants
initial_time = hour_to_sec(14)
courier_id = 14
time_delta = min_to_sec(10)
on_time = time(14, 0, 0)
off_time = time(15, 0, 0)
service_time = min_to_sec(7)
# Verifies 2 test cases for how the courier transitions to being busy
# For each test case, assert the courier starts in a set and ends up in the busy set
# Test 1: courier starts dropping off state
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
courier = Courier(dispatcher=dispatcher, env=env, courier_id=courier_id, on_time=on_time, off_time=off_time)
env.process(courier._dropping_off_state(
orders={
21: Order(drop_off_service_time=service_time, ready_time=time(12, 20, 0))
}
))
env.run(until=initial_time + time_delta)
self.assertEqual(courier.condition, 'dropping_off')
self.assertEqual(dispatcher.dropping_off_couriers, {courier.courier_id: courier})
self.assertEqual(dispatcher.idle_couriers, {})
# Test 2: courier start moving state
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
courier = Courier(
dispatcher=dispatcher,
env=env,
courier_id=courier_id,
location=Location(lat=4.690296, lng=-74.043929),
on_time=on_time,
off_time=off_time
)
env.process(courier._moving_state(destination=Location(lat=4.689697, lng=-74.055495)))
env.run(until=initial_time + time_delta)
self.assertEqual(courier.condition, 'moving')
self.assertEqual(dispatcher.moving_couriers, {courier.courier_id: courier})
self.assertEqual(dispatcher.idle_couriers, {})
def test_buffer_event(self):
"""Test to verify how the mechanics of the dispatcher buffering orders work"""
# Constants
initial_time = hour_to_sec(16)
placement_time = time(16, 0, 0)
time_delta = min_to_sec(10)
# Verifies two test cases for how the dispatcher buffers orders
# For each test, assert the correct number of orders are buffered
# Test 1: schedules the submission of three orders and assert that only two are buffered
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(
env=env,
buffering_policy=RollingBufferingPolicy(),
matching_policy=DummyMatchingPolicy()
)
order_1 = Order(order_id=1, placement_time=placement_time)
order_2 = Order(order_id=2, placement_time=placement_time)
order_3 = Order(order_id=3, placement_time=placement_time)
dispatcher.order_submitted_event(order_1, preparation_time=time(16, 0, 27), ready_time=time(16, 10, 0))
dispatcher.order_submitted_event(order_2, preparation_time=time(16, 0, 43), ready_time=time(16, 10, 0))
dispatcher.order_submitted_event(order_3, preparation_time=time(18, 0, 0), ready_time=time(18, 10, 0))
env.run(until=initial_time + time_delta)
self.assertEqual(len(dispatcher.unassigned_orders), 2)
# Test 2: schedules the submission of three orders and assert that all three orders are buffered
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(
env=env,
buffering_policy=RollingBufferingPolicy(),
matching_policy=DummyMatchingPolicy()
)
order_1 = Order(order_id=1, placement_time=placement_time)
order_2 = Order(order_id=2, placement_time=placement_time)
order_3 = Order(order_id=3, placement_time=placement_time)
dispatcher.order_submitted_event(order_1, preparation_time=time(16, 0, 27), ready_time=time(16, 10, 0))
dispatcher.order_submitted_event(order_2, preparation_time=time(16, 0, 43), ready_time=time(16, 10, 0))
dispatcher.order_submitted_event(order_3, preparation_time=time(16, 4, 1), ready_time=time(16, 14, 0))
env.run(until=initial_time + time_delta)
self.assertEqual(len(dispatcher.unassigned_orders), 3)
def test_notification_accepted_event(self):
"""Test to verify the mechanics of a notification being accepted by a courier"""
# Constants
initial_time = hour_to_sec(14)
on_time = time(14, 0, 0)
off_time = time(15, 0, 0)
# Services
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
# Creates an instruction with an order, a courier and sends the accepted event
order = Order(order_id=45)
instruction = Route(
stops=[
Stop(orders={order.order_id: order}, position=0),
Stop(orders={order.order_id: order}, position=1)
],
orders={order.order_id: order}
)
dispatcher.unassigned_orders[order.order_id] = order
courier = Courier(dispatcher=dispatcher, env=env, courier_id=89, on_time=on_time, off_time=off_time)
courier.condition = 'idle'
notification = Notification(
courier=courier,
instruction=instruction
)
dispatcher.notification_accepted_event(notification=notification, courier=courier)
env.run(until=initial_time + min_to_sec(10))
# Verify order and courier properties are modified and it is allocated correctly
self.assertEqual(order.state, 'in_progress')
self.assertEqual(order.acceptance_time, sec_to_time(initial_time))
self.assertEqual(order.courier_id, courier.courier_id)
self.assertIn(order.order_id, dispatcher.assigned_orders.keys())
self.assertIsNotNone(courier.active_route)
self.assertEqual(courier.active_route, instruction)
self.assertEqual(dispatcher.unassigned_orders, {})
def test_order_submitted_event(self):
"""Test to verify the mechanics of the order submitted event"""
# Constants
initial_time = hour_to_sec(15)
placement_time = time(15, 0, 0)
preparation_time = time(15, 1, 0)
ready_time = time(15, 15, 0)
# Services
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
# Creates an order and submits it to the dispatcher
order = Order(order_id=32, placement_time=placement_time)
dispatcher.order_submitted_event(order, preparation_time, ready_time)
env.run(until=initial_time + 121)
# Verify order properties are set and it is correctly allocated
self.assertEqual(order.preparation_time, preparation_time)
self.assertEqual(order.ready_time, ready_time)
self.assertIn(order.order_id, dispatcher.unassigned_orders.keys())
def test_submit_cancel_order(self):
"""Test to verify how a user submits and decides to cancel an order"""
# Constants
random.seed(666)
initial_time = hour_to_sec(12)
time_delta = min_to_sec(10)
# Services
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
# Create a user and have it submit an order immediately
user = User(cancellation_policy=self.cancellation_policy,
dispatcher=dispatcher,
env=env)
user.submit_order_event(
order_id=self.order_id,
pick_up_at=self.pick_up_at,
drop_off_at=self.drop_off_at,
placement_time=self.placement_time,
expected_drop_off_time=self.expected_drop_off_time,
preparation_time=self.preparation_time,
ready_time=self.ready_time)
env.run(until=initial_time + time_delta)
# Verify order is created and canceled due to a courier not being assigned
self.assertTrue(user.order)
self.assertIsNone(user.order.courier_id)
self.assertIsNotNone(user.order.cancellation_time)
self.assertEqual(dispatcher.unassigned_orders, {})
self.assertIn(self.order_id, dispatcher.canceled_orders.keys())
self.assertEqual(
user.order.cancellation_time,
(datetime.combine(date.today(), self.placement_time) +
timedelta(seconds=settings.USER_WAIT_TO_CANCEL)).time())
self.assertEqual(user.condition, 'canceled')
def test_myopic_matching_policy_execute_mip_matcher(self, osrm):
"""Test to verify how the optimization model is solved with a MIP approach"""
# Constants
env_time = hour_to_sec(12) + min_to_sec(20)
on_time = time(8, 0, 0)
off_time = time(16, 0, 0)
random.seed(45)
# Orders
order_1 = Order(order_id=1,
pick_up_at=Location(lat=4.678759, lng=-74.055729),
drop_off_at=Location(lat=4.681694, lng=-74.044811),
ready_time=time(12, 30, 0),
expected_drop_off_time=time(12, 40, 0),
pick_up_service_time=0,
drop_off_service_time=0)
order_2 = Order(order_id=2,
pick_up_at=Location(lat=4.678759, lng=-74.055729),
drop_off_at=Location(lat=4.695001, lng=-74.040737),
ready_time=time(12, 32, 0),
expected_drop_off_time=time(12, 42, 0),
pick_up_service_time=0,
drop_off_service_time=0)
order_3 = Order(order_id=3,
pick_up_at=Location(lat=4.678759, lng=-74.055729),
drop_off_at=Location(lat=4.668742, lng=-74.056684),
ready_time=time(12, 33, 0),
expected_drop_off_time=time(12, 43, 0),
pick_up_service_time=0,
drop_off_service_time=0)
order_4 = Order(order_id=4,
pick_up_at=Location(lat=4.678759, lng=-74.055729),
drop_off_at=Location(lat=4.661441, lng=-74.056955),
ready_time=time(12, 34, 0),
expected_drop_off_time=time(12, 44, 0),
pick_up_service_time=0,
drop_off_service_time=0)
# Couriers
courier_1 = Courier(courier_id=1,
on_time=on_time,
off_time=off_time,
condition='idle',
location=Location(lat=4.676854, lng=-74.057498))
courier_2 = Courier(courier_id=2,
on_time=on_time,
off_time=off_time,
condition='idle',
location=Location(lat=4.679408, lng=-74.052524))
courier_3 = Courier(
courier_id=3,
on_time=on_time,
off_time=off_time,
condition='picking_up',
location=order_3.pick_up_at,
active_route=Route(orders={order_3.order_id: order_3},
stops=[
Stop(location=order_3.pick_up_at,
orders={order_3.order_id: order_3},
position=0,
type=StopType.PICK_UP),
Stop(location=order_3.drop_off_at,
orders={order_3.order_id: order_3},
position=1,
type=StopType.DROP_OFF)
]),
active_stop=Stop(location=order_3.pick_up_at,
orders={order_3.order_id: order_3},
position=0,
type=StopType.PICK_UP))
# Get all the elements from the policy and assert their expected behavior
policy = MyopicMatchingPolicy(assignment_updates=False,
prospects=False,
notification_filtering=False,
mip_matcher=False)
routes = policy._generate_routes(
orders=[order_1, order_2, order_4],
couriers=[courier_1, courier_2, courier_3],
env_time=env_time)
self.assertTrue(routes)
self.assertEqual(len(routes), 2)
self.assertEqual(len(routes[0].orders), 2)
self.assertEqual(len(routes[1].orders), 1)
prospects = policy._generate_matching_prospects(
routes=routes,
couriers=[courier_1, courier_2, courier_3],
env_time=env_time)
self.assertTrue(prospects.tolist())
self.assertEqual(len(prospects), 4),
self.assertEqual(len(prospects),
len(routes) * len([courier_1, courier_2]))
costs = policy._generate_matching_costs(
routes=routes,
couriers=[courier_1, courier_2, courier_3],
prospects=prospects,
env_time=env_time)
self.assertTrue(costs.tolist())
self.assertEqual(len(prospects), len(costs))
self.assertEqual(len(costs), 4)
self.assertNotIn(0., costs)
problem = MatchingProblemBuilder.build(
routes=routes,
couriers=[courier_1, courier_2, courier_3],
prospects=prospects,
costs=costs)
self.assertTrue(problem)
self.assertEqual(len(prospects), len(problem.prospects))
self.assertEqual(len(prospects), len(problem.matching_prospects))
self.assertEqual(len(prospects), len(problem.costs))
self.assertEqual(routes, problem.routes)
self.assertEqual(problem.couriers, [courier_1, courier_2, courier_3])
self.assertNotIn(str(courier_3.courier_id),
problem.matching_prospects['i'])
model_builder = MIPOptimizationModelBuilder(
sense='max',
model_constraints=[
CourierAssignmentConstraint(),
RouteAssignmentConstraint()
],
optimizer='pulp')
model = model_builder.build(problem)
self.assertTrue(model)
self.assertEqual(len(model.constraints),
len(problem.routes) + len([courier_1, courier_2]))
self.assertEqual(len(model.variable_set),
len(problem.matching_prospects) + len(problem.routes))
solution = model.solve()
self.assertTrue(solution.tolist())
self.assertEqual(len(solution),
len(problem.matching_prospects) + len(problem.routes))
self.assertEqual(solution[0:len(problem.prospects)].sum(), 2)
self.assertEqual(solution.sum(), 2)
notifications = policy._process_solution(solution, problem, env_time)
self.assertEqual(len(notifications), len(routes))
self.assertIsInstance(notifications[0].instruction, Route)
self.assertIsInstance(notifications[1].instruction, Route)
self.assertEqual(notifications[0].courier, courier_1)
self.assertEqual(notifications[1].courier, courier_2)
self.assertIn(order_1.order_id,
notifications[1].instruction.orders.keys())
self.assertIn(order_4.order_id,
notifications[1].instruction.orders.keys())
def test_notify_event_reject_idle(self, osrm):
"""Test to evaluate how a courier handles a notification while being idle and rejects it"""
# Constants
random.seed(122)
on_time = time(12, 0, 0)
off_time = time(15, 0, 0)
# Services
env = Environment(initial_time=hour_to_sec(12))
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
# Creates a courier with low acceptance rate and immediately send a new instruction, composed of a single order
courier = Courier(
acceptance_policy=self.acceptance_policy,
dispatcher=dispatcher,
env=env,
movement_evaluation_policy=self.movement_evaluation_policy,
movement_policy=self.movement_policy,
courier_id=self.courier_id,
vehicle=self.vehicle,
location=self.start_location,
acceptance_rate=0.01,
on_time=on_time,
off_time=off_time)
order = Order(order_id=self.order_id,
drop_off_at=self.drop_off_at,
pick_up_at=self.pick_up_at,
placement_time=self.placement_time,
expected_drop_off_time=self.expected_drop_off_time,
preparation_time=self.preparation_time,
ready_time=self.ready_time)
dispatcher.unassigned_orders[order.order_id] = order
instruction = Route(orders={self.order_id: order},
stops=[
Stop(location=self.pick_up_at,
position=0,
orders={self.order_id: order},
type=StopType.PICK_UP,
visited=False),
Stop(location=self.drop_off_at,
position=1,
orders={self.order_id: order},
type=StopType.DROP_OFF,
visited=False)
])
notification = Notification(courier=courier, instruction=instruction)
env.process(courier.notification_event(notification))
env.run(until=hour_to_sec(14))
# Asserts that the courier didn't fulfill the route
self.assertIsNone(order.pick_up_time)
self.assertIsNone(order.drop_off_time)
self.assertIsNone(order.courier_id)
self.assertIsNone(courier.active_route)
self.assertIsNone(courier.active_stop)
self.assertIn(courier.courier_id, order.rejected_by)
self.assertIn(order.order_id, courier.rejected_orders)
self.assertEqual(dispatcher.unassigned_orders, {order.order_id: order})
self.assertEqual(order.state, 'unassigned')
self.assertEqual(courier.location, self.start_location)
self.assertEqual(courier.condition, 'idle')
self.assertIn(courier.courier_id, dispatcher.idle_couriers.keys())
def test_notify_event_reject_picking_up(self, osrm):
"""Test to evaluate how a courier handles a notification while picking up and rejects it"""
# Constants
random.seed(4747474)
on_time = time(12, 0, 0)
off_time = time(15, 0, 0)
# Services
env = Environment(initial_time=hour_to_sec(12) + min_to_sec(12))
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
# Creates a courier with low acceptance rate, an active route and in state of picking up.
# Sends a new instruction, composed of a single new order
active_order = Order(
order_id=self.order_id,
drop_off_at=self.drop_off_at,
pick_up_at=self.pick_up_at,
placement_time=self.placement_time,
expected_drop_off_time=self.expected_drop_off_time,
preparation_time=self.preparation_time,
ready_time=self.ready_time,
courier_id=self.courier_id,
user=User(env=env))
dispatcher.assigned_orders[active_order.order_id] = active_order
new_order = Order(order_id=17,
drop_off_at=Location(lat=4.694627, lng=-74.038886),
pick_up_at=self.pick_up_at,
placement_time=self.placement_time,
expected_drop_off_time=self.expected_drop_off_time,
preparation_time=self.preparation_time,
ready_time=self.ready_time,
user=User(env=env))
dispatcher.unassigned_orders[new_order.order_id] = new_order
courier = Courier(
acceptance_policy=self.acceptance_policy,
dispatcher=dispatcher,
env=env,
movement_evaluation_policy=self.movement_evaluation_policy,
movement_policy=self.movement_policy,
courier_id=self.courier_id,
vehicle=self.vehicle,
location=active_order.pick_up_at,
acceptance_rate=0.01,
active_route=Route(orders={self.order_id: active_order},
stops=[
Stop(location=self.pick_up_at,
position=0,
orders={self.order_id: active_order},
type=StopType.PICK_UP,
visited=False),
Stop(location=self.drop_off_at,
position=1,
orders={self.order_id: active_order},
type=StopType.DROP_OFF,
visited=False)
]),
on_time=on_time,
off_time=off_time)
instruction = Stop(location=new_order.drop_off_at,
position=1,
orders={new_order.order_id: new_order},
type=StopType.DROP_OFF,
visited=False)
notification = Notification(courier=courier, instruction=instruction)
courier.state.interrupt()
courier.active_stop = courier.active_route.stops[0]
courier.state = env.process(
courier._picking_up_state(
orders={active_order.order_id: active_order}))
env.process(courier.notification_event(notification))
env.run(until=hour_to_sec(14))
# Asserts:
# - the courier didn't fulfill the new order,
# - fulfilled the active order and
# - is at a different start location.
self.assertIsNone(new_order.pick_up_time)
self.assertIsNone(new_order.drop_off_time)
self.assertIsNone(new_order.courier_id)
self.assertIn(courier.courier_id, new_order.rejected_by)
self.assertIn(new_order.order_id, courier.rejected_orders)
self.assertEqual(new_order.state, 'unassigned')
self.assertIsNotNone(active_order.pick_up_time)
self.assertIsNotNone(active_order.drop_off_time)
self.assertEqual(active_order.courier_id, courier.courier_id)
self.assertTrue(active_order.pick_up_time < active_order.drop_off_time)
self.assertEqual(active_order.state, 'dropped_off')
self.assertIsNone(courier.active_route)
self.assertIsNone(courier.active_stop)
self.assertNotEqual(courier.location, self.start_location)
self.assertEqual(dispatcher.fulfilled_orders,
{active_order.order_id: active_order})
self.assertEqual(dispatcher.unassigned_orders,
{new_order.order_id: new_order})
self.assertEqual(courier.condition, 'idle')
self.assertIn(courier.courier_id, dispatcher.idle_couriers.keys())
def test_courier_log_off(self):
"""Test to verify how the dispatcher handles a courier logging off"""
# Constants
random.seed(12)
initial_time = hour_to_sec(12)
time_delta = hour_to_sec(2)
service_time = min_to_sec(4)
# Tests 3 cases: when the courier is idle, busy or available.
# For each test, assert that the courier ends up being logged off
# Test 1: the courier is idle
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
courier = Courier(
env=env,
dispatcher=dispatcher,
courier_id=69,
on_time=time(12, 0, 0),
off_time=time(13, 0, 0)
)
env.run(until=initial_time + time_delta)
self.assertEqual(dispatcher.idle_couriers, {})
self.assertEqual(dispatcher.moving_couriers, {})
self.assertEqual(dispatcher.dropping_off_couriers, {})
self.assertEqual(dispatcher.picking_up_couriers, {})
self.assertEqual(dispatcher.logged_off_couriers, {courier.courier_id: courier})
# Test 2: the courier is busy
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
courier = Courier(
env=env,
dispatcher=dispatcher,
courier_id=69,
on_time=time(12, 0, 0),
off_time=time(13, 0, 0)
)
courier.state.interrupt()
env.process(courier._dropping_off_state(
orders={21: Order(drop_off_service_time=service_time)}
))
env.run(until=initial_time + time_delta)
self.assertEqual(dispatcher.idle_couriers, {})
self.assertEqual(dispatcher.moving_couriers, {})
self.assertEqual(dispatcher.dropping_off_couriers, {})
self.assertEqual(dispatcher.picking_up_couriers, {})
self.assertEqual(dispatcher.logged_off_couriers, {courier.courier_id: courier})
# Test 3: the courier is available
env = Environment(initial_time=initial_time)
dispatcher = Dispatcher(env=env, matching_policy=DummyMatchingPolicy())
courier = Courier(
env=env,
dispatcher=dispatcher,
courier_id=69,
on_time=time(12, 0, 0),
off_time=time(13, 0, 0)
)
courier.state.interrupt()
env.process(courier._picking_up_state(
orders={
21: Order(drop_off_service_time=service_time, ready_time=time(12, 20, 0))
}
))
env.run(until=initial_time + time_delta)
self.assertEqual(dispatcher.idle_couriers, {})
self.assertEqual(dispatcher.moving_couriers, {})
self.assertEqual(dispatcher.dropping_off_couriers, {})
self.assertEqual(dispatcher.picking_up_couriers, {})
self.assertEqual(dispatcher.logged_off_couriers, {courier.courier_id: courier})
# Simulation Constants
# --- time = Simulate from this time on
'SIMULATE_FROM': time(0, 0, 0),
# --- time = Simulate until this time
'SIMULATE_UNTIL': time(10, 0, 0),
# --- time = Create new users to submit orders from this time
'CREATE_USERS_FROM': time(9, 0, 0),
# --- time = Create new users to submit orders until this time
'CREATE_USERS_UNTIL': time(9, 5, 0),
# --- time = Create new couriers to log on from this time
'CREATE_COURIERS_FROM': time(0, 0, 0),
# --- time = Create new couriers to log on until this time
'CREATE_COURIERS_UNTIL': time(0, 5, 0),
# --- float = Warm up time [sec] to achieve steady state simulation
'WARM_UP_TIME': hour_to_sec(3) + min_to_sec(0),
# Simulation Policies - Dispatcher
# --- str = Policy for canceling orders. Options: ['static']
'DISPATCHER_CANCELLATION_POLICY': 'static',
# --- str = Policy for buffering orders. Options: ['rolling_horizon']
'DISPATCHER_BUFFERING_POLICY': 'rolling_horizon',
# --- str = Policy for deciding when to evaluate prepositioning. Options: ['fixed']
'DISPATCHER_PREPOSITIONING_EVALUATION_POLICY': 'fixed',
# --- str = Policy for executing prepositioning. Options: ['naive']
'DISPATCHER_PREPOSITIONING_POLICY': 'naive',
# --- str = Policy for matching. Options: ['greedy', 'mdrp', 'mdrp_graph', 'mdrp_graph_prospects', 'modified_mdrp']
'DISPATCHER_MATCHING_POLICY': 'mdrp',
# Simulation Policies - Courier
# --- str = Policy for accepting a notification. Options: ['uniform', 'absolute']
def test_generate_matching_prospects_all(self, osrm):
"""Test to verify how prospects are created"""
# Constants
env_time = hour_to_sec(12) + min_to_sec(20)
on_time = time(8, 0, 0)
off_time = time(16, 0, 0)
# Orders
order_1 = Order(order_id=1,
pick_up_at=Location(lat=4.678759, lng=-74.055729),
drop_off_at=Location(lat=4.681694, lng=-74.044811),
ready_time=time(12, 30, 0),
expected_drop_off_time=time(12, 40, 0),
pick_up_service_time=0,
drop_off_service_time=0)
order_2 = Order(order_id=2,
pick_up_at=Location(lat=4.678759, lng=-74.055729),
drop_off_at=Location(lat=4.695001, lng=-74.040737),
ready_time=time(12, 32, 0),
expected_drop_off_time=time(12, 42, 0),
pick_up_service_time=0,
drop_off_service_time=0)
order_3 = Order(order_id=3,
pick_up_at=Location(lat=4.678759, lng=-74.055729),
drop_off_at=Location(lat=4.668742, lng=-74.056684),
ready_time=time(12, 33, 0),
expected_drop_off_time=time(12, 43, 0),
pick_up_service_time=0,
drop_off_service_time=0)
order_4 = Order(order_id=4,
pick_up_at=Location(lat=4.678759, lng=-74.055729),
drop_off_at=Location(lat=4.661441, lng=-74.056955),
ready_time=time(12, 34, 0),
expected_drop_off_time=time(12, 44, 0),
pick_up_service_time=0,
drop_off_service_time=0)
# Couriers
courier_1 = Courier(courier_id=1,
on_time=on_time,
off_time=off_time,
condition='idle',
location=Location(lat=4.676854, lng=-74.057498))
courier_2 = Courier(courier_id=2,
on_time=on_time,
off_time=off_time,
condition='idle',
location=Location(lat=4.679408, lng=-74.052524))
# Routes
policy = MyopicMatchingPolicy(assignment_updates=True,
prospects=True,
notification_filtering=False,
mip_matcher=False)
routes = policy._generate_routes(
orders=[order_1, order_2, order_3, order_4],
couriers=[courier_1, courier_2],
env_time=env_time)
# Generate prospects and assert expected behavior
prospects = policy._generate_matching_prospects(
routes=routes, couriers=[courier_1, courier_2], env_time=env_time)
self.assertTrue(prospects.tolist())
self.assertEqual(len(prospects), 8)
def test_generate_matching_prospects_picking_up_couriers(self, osrm):
"""Test to verify how prospects are created"""
# Constants
env_time = hour_to_sec(12) + min_to_sec(20)
on_time = time(8, 0, 0)
off_time = time(16, 0, 0)
# Orders
order_1 = Order(order_id=1,
pick_up_at=Location(lat=4.678759, lng=-74.055729),
drop_off_at=Location(lat=4.681694, lng=-74.044811),
ready_time=time(12, 30, 0),
expected_drop_off_time=time(12, 40, 0),
pick_up_service_time=0,
drop_off_service_time=0)
order_2 = Order(order_id=2,
pick_up_at=Location(lat=4.678759, lng=-74.055729),
drop_off_at=Location(lat=4.695001, lng=-74.040737),
ready_time=time(12, 32, 0),
expected_drop_off_time=time(12, 42, 0),
pick_up_service_time=0,
drop_off_service_time=0)
order_3 = Order(order_id=3,
pick_up_at=Location(lat=4.678759, lng=-74.055729),
drop_off_at=Location(lat=4.668742, lng=-74.056684),
ready_time=time(12, 33, 0),
expected_drop_off_time=time(12, 43, 0),
pick_up_service_time=0,
drop_off_service_time=0)
# Couriers
courier_3 = Courier(
courier_id=3,
on_time=on_time,
off_time=off_time,
condition='picking_up',
location=order_3.pick_up_at,
active_route=Route(orders={order_3.order_id: order_3},
stops=[
Stop(location=order_3.pick_up_at,
orders={order_3.order_id: order_3},
position=0,
type=StopType.PICK_UP),
Stop(location=order_3.drop_off_at,
orders={order_3.order_id: order_3},
position=1,
type=StopType.DROP_OFF)
]),
active_stop=Stop(location=order_3.pick_up_at,
orders={order_3.order_id: order_3},
position=0,
type=StopType.PICK_UP))
# Get routes and assert expected behavior
policy = MyopicMatchingPolicy(assignment_updates=True,
prospects=True,
notification_filtering=False,
mip_matcher=False)
routes = policy._generate_routes(orders=[order_1, order_2],
couriers=[courier_3],
env_time=env_time)
# Generate prospects and assert expected behavior
prospects = policy._generate_matching_prospects(routes=routes,
couriers=[courier_3],
env_time=env_time)
self.assertFalse(prospects.tolist())
from enum import IntEnum
from utils.datetime_utils import hour_to_sec
DEFAULT_VELOCITY = {
0: 5 / hour_to_sec(1),
1: 15 / hour_to_sec(1),
2: 23 / hour_to_sec(1),
3: 25 / hour_to_sec(1)
}
LABELS = {
0: 'walking',
1: 'bicycle',
2: 'motorcycle',
3: 'car'
}
LABELS_MAP = {
'walking': 0,
'bicycle': 1,
'motorcycle': 2,
'car': 3
}
class Vehicle(IntEnum):
"""A class that handles courier vehicles"""
WALKER = 0
