def test_schedule_unscheduled_event_has_violations(events, slots):
# schedule with event 1 not scheduled
schedule = (ScheduledItem(event=events[0], slot=slots[2]),
ScheduledItem(event=events[2], slot=slots[5]))
violations = list(validator.schedule_violations(schedule, events, slots))
assert violations == [
'Event either not scheduled or scheduled multiple times - event: 1'
]
def test_unchanged_slot_schedule_difference(events, slots):
old_schedule = (
ScheduledItem(events[0], slots[1]),
ScheduledItem(events[1], slots[4]),
ScheduledItem(events[2], slots[2])
)
difference = scheduler.slot_schedule_difference(
old_schedule, old_schedule)
assert difference == []
def test_removed_event_schedule_difference(slots):
events = [
Event(name='Talk 1', duration=30, demand=30),
Event(name='Talk 2', duration=30, demand=500),
Event(name='Workshop 1', duration=60, demand=20),
Event(name='Workshop 2', duration=60, demand=20)
]
old_schedule = (
ScheduledItem(events[0], slots[1]),
ScheduledItem(events[1], slots[4]),
ScheduledItem(events[2], slots[2]),
ScheduledItem(events[3], slots[5])
)
new_schedule = (
ScheduledItem(events[0], slots[1]),
ScheduledItem(events[1], slots[3]),
ScheduledItem(events[2], slots[4])
)
difference = scheduler.event_schedule_difference(
old_schedule, new_schedule)
expected = [
ChangedEventScheduledItem(events[1], slots[4], slots[3]),
ChangedEventScheduledItem(events[2], slots[2], slots[4]),
ChangedEventScheduledItem(events[3], slots[5], None)
]
assert difference == expected
def test_removed_slot_schedule_difference(events, slots):
old_schedule = (
ScheduledItem(events[0], slots[1]),
ScheduledItem(events[1], slots[4]),
ScheduledItem(events[2], slots[2])
)
new_schedule = (
ScheduledItem(events[1], slots[1]),
ScheduledItem(events[0], slots[4]),
)
difference = scheduler.slot_schedule_difference(
old_schedule, new_schedule)
expected = [
ChangedSlotScheduledItem(slots[1], events[0], events[1]),
ChangedSlotScheduledItem(slots[2], events[2], None),
ChangedSlotScheduledItem(slots[4], events[1], events[0])
]
assert difference == expected
def solution_to_schedule(solution, events, slots):
"""Convert a schedule from solution to schedule form
Parameters
----------
solution : list or tuple
of tuples of event index and slot index for each scheduled item
events : list or tuple
of :py:class:`resources.Event` instances
slots : list or tuple
of :py:class:`resources.Slot` instances
Returns
-------
list
A list of instances of :py:class:`resources.ScheduledItem`
"""
return [
ScheduledItem(event=events[item[0]], slot=slots[item[1]])
for item in solution
]
def test_changed_event_schedule_difference(events, slots):
old_schedule = (
ScheduledItem(events[0], slots[1]),
ScheduledItem(events[1], slots[4]),
ScheduledItem(events[2], slots[2])
)
new_schedule = (
ScheduledItem(events[0], slots[1]),
ScheduledItem(events[1], slots[3]),
ScheduledItem(events[2], slots[4])
)
difference = scheduler.event_schedule_difference(
old_schedule, new_schedule)
expected = [
ChangedEventScheduledItem(events[1], slots[4], slots[3]),
ChangedEventScheduledItem(events[2], slots[2], slots[4])
]
assert difference == expected
def array_to_schedule(array, events, slots):
"""Convert a schedule from array to schedule form
Parameters
----------
array : np.array
An E by S array (X) where E is the number of events and S the
number of slots. Xij is 1 if event i is scheduled in slot j and
zero otherwise
events : list or tuple
of :py:class:`resources.Event` instances
slots : list or tuple
of :py:class:`resources.Slot` instances
Returns
-------
list
A list of instances of :py:class:`resources.ScheduledItem`
"""
scheduled = np.transpose(np.nonzero(array))
return [
ScheduledItem(event=events[item[0]], slot=slots[item[1]])
for item in scheduled
]
def schedule(events, slots, constraints=None, existing=None):
shape = params.Shape(len(events), len(slots))
return (ScheduledItem(event=events[item[0]], slot=slots[item[1]])
for item in solution(shape, constraints, existing))
def valid_schedule(events, slots):
return [
ScheduledItem(event=events[0], slot=slots[2]),
ScheduledItem(event=events[1], slot=slots[4]),
ScheduledItem(event=events[2], slot=slots[5])
]