Ross
273 lines
11 KiB
Python
273 lines
11 KiB
Python
import pytest
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from rota_generator.shifts import NoWorkers, RotaBuilder, SingleShift, days
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import datetime
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from rota_generator.workers import Worker
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def weeks_from_list(lst):
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"""Yield successive n-sized chunks from a lst."""
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for i in range(0, len(lst), 7):
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yield lst[i : i + 7]
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def setup_rota(weeks_to_rota=10, start_date=None):
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if start_date is None:
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start_date = datetime.date(2022, 3, 7)
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return RotaBuilder(start_date, weeks_to_rota=weeks_to_rota)
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def test_nwd():
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Rota = setup_rota()
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worker1 = Worker(name="worker1", site="group1", grade=1, nwds=[{"day": "Mon"}])
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worker2 = Worker(name="worker2", site="group1", grade=1, nwds=[{"day": "Fri"}])
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Rota.add_workers((worker1, worker2))
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Rota.add_shifts(
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SingleShift(
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sites=("group1",), name="d", length=12.5, days=days[:5], workers_required=1,
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),
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SingleShift(
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sites=("group1",), name="w", length=12.5, days=days[5:], workers_required=2,
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),
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)
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Rota.build_and_solve(options={"ratio": 0.10})
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Rota.export_rota_to_html("nwd1", folder="tests")
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assert Rota.results.solver.status == "ok"
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assert Rota.results.solver.termination_condition == "optimal"
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for worker in Rota.workers:
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shifts = Rota.get_worker_shift_list(worker)
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shifts_string = "".join([i if i != "" else "-" for i in shifts])
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if worker.name == "worker1":
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assert "wwd" not in shifts_string
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if worker.name == "worker2":
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assert "dww" not in shifts_string
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def test_nwd_simple_fail():
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Rota = setup_rota()
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worker1 = Worker(name="worker1", site="group1", grade=1, nwds=[{"day": "Mon"}])
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worker2 = Worker(name="worker2", site="group1", grade=1, nwds=[{"day": "Mon"}])
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Rota.add_workers((worker1, worker2))
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Rota.add_shifts(
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SingleShift(
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sites=("group1",), name="d", length=12.5, days=days[:5], balance_offset=10, workers_required=1,
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),
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)
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Rota.build_and_solve(options={"ratio": 0.00})
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Rota.export_rota_to_html("nwd", folder="tests")
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assert Rota.results.solver.status in ("warning", "error")
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def test_nwd_partial_rota():
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Rota = setup_rota()
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start_date = Rota.start_date
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d = start_date + datetime.timedelta(weeks=5)
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worker1 = Worker(
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name="worker1", site="group1", grade=1,
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nwds=[{"day": "Mon", "start_date": start_date, "end_date": d}],
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)
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worker2 = Worker(
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name="worker2", site="group1", grade=1,
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nwds=[{"day": "Mon", "start_date": d, "end_date": Rota.rota_end_date}],
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)
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Rota.add_workers((worker1, worker2))
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Rota.add_shifts(
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SingleShift(
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sites=("group1",), name="d", length=12.5, days=days[:5], balance_offset=10, workers_required=1,
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),
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)
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Rota.build_and_solve(options={"ratio": 0.00})
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Rota.export_rota_to_html("nwd", folder="tests")
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assert Rota.results.solver.status == "ok"
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for worker in Rota.workers:
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shifts = Rota.get_worker_shift_list(worker)
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shifts_string = "".join([i if i != "" else "-" for i in shifts])
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if worker.name == "worker1":
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for n in range(0, 4):
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assert shifts_string[0 + 7 * n] == "-"
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if worker.name == "worker2":
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for n in range(5, 9):
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assert shifts_string[0 + 7 * n] == "-"
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def test_nwd_partial_overlay():
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Rota = setup_rota()
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start_date = Rota.start_date
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d = start_date + datetime.timedelta(weeks=5)
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d2 = start_date + datetime.timedelta(weeks=6)
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worker1 = Worker(
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name="worker1", site="group1", grade=1,
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nwds=[{"day": "Mon", "start_date": start_date, "end_date": d2}],
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)
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worker2 = Worker(
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name="worker2", site="group1", grade=1,
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nwds=[{"day": "Mon", "start_date": d, "end_date": Rota.rota_end_date}],
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)
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Rota.add_workers((worker1, worker2))
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Rota.add_shifts(
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SingleShift(
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sites=("group1",), name="d", length=12.5, days=days[:5], balance_offset=10, workers_required=1,
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),
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)
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Rota.build_and_solve(options={"ratio": 0.00})
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assert Rota.results.solver.status in ("warning", "error")
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def test_nwd_force_as_block():
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Rota = setup_rota()
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start_date = Rota.start_date
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d = start_date + datetime.timedelta(weeks=4)
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worker1 = Worker(
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name="worker1", site="group1", grade=1,
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nwds=[{"day": "Mon", "start_date": start_date, "end_date": d}],
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)
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worker2 = Worker(name="worker2", site="group1", grade=1)
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worker3 = Worker(name="worker3", site="group1", grade=1)
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worker4 = Worker(name="worker4", site="group1", grade=1)
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Rota.add_workers((worker1, worker2, worker3, worker4))
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Rota.add_shifts(
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SingleShift(
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sites=("group1",), name="d", length=12.5, days=days[:5],
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balance_offset=10, workers_required=2,
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force_as_block_unless_nwd=True, assign_as_block=True,
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),
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)
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Rota.build_and_solve(options={"ratio": 0.00})
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Rota.export_rota_to_html("nwd", folder="tests")
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assert Rota.results.solver.status == "ok"
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for worker in Rota.workers:
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shifts = Rota.get_worker_shift_list(worker)
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shifts_string = "".join([i if i != "" else "-" for i in shifts])
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for week in weeks_from_list(shifts_string):
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assert week in ("-------", "ddddd--")
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assert shifts_string.count("d") == 25
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def test_nwd_force_as_block_force_split():
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Rota = setup_rota()
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start_date = Rota.start_date
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d = start_date + datetime.timedelta(weeks=5)
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worker1 = Worker(
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name="worker1", site="group1", grade=1,
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nwds=[{"day": "Mon", "start_date": start_date, "end_date": d}],
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)
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worker2 = Worker(name="worker2", site="group1", grade=1)
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worker3 = Worker(name="worker3", site="group1", grade=1)
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worker4 = Worker(name="worker4", site="group1", grade=1)
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Rota.add_workers((worker1, worker2, worker3, worker4))
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Rota.add_shifts(
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SingleShift(
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sites=("group1",), name="d", length=12.5, days=days[:5],
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workers_required=2, force_as_block_unless_nwd=True, assign_as_block=True,
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),
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SingleShift(
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sites=("group1",), name="w", length=12.5, days=days[5:],
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workers_required=4, force_as_block_unless_nwd=True, assign_as_block=True,
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),
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)
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Rota.build_and_solve(options={"ratio": 0.00})
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Rota.export_rota_to_html("nwd_block_force_split", folder="tests")
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assert Rota.results.solver.status == "ok"
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for worker in Rota.workers:
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shifts = Rota.get_worker_shift_list(worker)
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shifts_string = "".join([i if i != "" else "-" for i in shifts])
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for week in weeks_from_list(shifts_string[7 * 6 :]):
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assert week in ("-----ww", "dddddww")
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if worker.name == "worker1":
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assert shifts_string[: 7 * 5].count("ww-") == 4
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assert shifts_string.count("d") == 25
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assert shifts_string.count("w") == 20
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def test_nwd_testing():
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Rota = setup_rota()
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start_date = Rota.start_date
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d = start_date + datetime.timedelta(weeks=5)
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worker1 = Worker(
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name="worker1", site="group1", grade=1,
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nwds=[
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{"day": "Mon", "start_date": d, "end_date": Rota.rota_end_date},
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{"day": "Tue", "start_date": d, "end_date": Rota.rota_end_date},
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{"day": "Wed", "start_date": d, "end_date": Rota.rota_end_date},
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{"day": "Thu", "start_date": d, "end_date": Rota.rota_end_date},
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{"day": "Fri", "start_date": d, "end_date": Rota.rota_end_date},
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],
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)
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worker2 = Worker(name="worker2", site="group1", grade=1)
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Rota.add_workers((worker1, worker2))
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Rota.add_shifts(
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SingleShift(
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sites=("group1",), name="d", length=12.5, days=days[:5],
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balance_offset=10, workers_required=1,
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force_as_block_unless_nwd=True, assign_as_block=True,
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),
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SingleShift(
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sites=("group1",), name="w", length=12.5, days=days[5:],
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balance_offset=10, workers_required=2,
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force_as_block_unless_nwd=True, assign_as_block=True,
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),
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)
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Rota.build_and_solve(options={"ratio": 0.00})
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Rota.export_rota_to_html("nwd", folder="tests")
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assert Rota.results.solver.status == "ok"
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for worker in Rota.workers:
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shifts = Rota.get_worker_shift_list(worker)
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shifts_string = "".join([i if i != "" else "-" for i in shifts])
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for week in weeks_from_list(shifts_string[7 * 5 :]):
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if worker.name == "worker1":
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assert week == "-----ww"
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else:
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assert week == "dddddww"
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for week in weeks_from_list(shifts_string[: 7 * 5]):
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if worker.name == "worker1":
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assert week == "dddddww"
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else:
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assert week == "-----ww"
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def test_force_as_block_unless_nwd_with_subblocks():
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# Test that a Fri/Sat/Sun shift can be split into Fri and Sat/Sun blocks
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# if a worker does not work on Fridays.
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Rota = setup_rota(weeks_to_rota=2)
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start_date = Rota.start_date
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# worker1 does not work on Fridays (Fri is NWD)
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worker1 = Worker(
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name="worker1", site="group1", grade=1,
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nwds=[{"day": "Fri", "start_date": start_date, "end_date": start_date + datetime.timedelta(weeks=2)}],
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)
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# worker2 works normally
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worker2 = Worker(name="worker2", site="group1", grade=1)
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Rota.add_workers((worker1, worker2))
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# Fri/Sat/Sun shift, requiring 1 worker, forced as block unless NWD
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# We specify sub-blocks: [["Fri"], ["Sat", "Sun"]]
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Rota.add_shifts(
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SingleShift(
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sites=("group1",), name="weekend", length=12.5,
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days=["Fri", "Sat", "Sun"],
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workers_required=1,
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force_as_block_unless_nwd=[["Fri"], ["Sat", "Sun"]],
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),
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)
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# We remove no valid shifts warning
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Rota.terminate_on_warning.remove("Worker/no valid shifts")
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Rota.build_and_solve()
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assert Rota.results.solver.status == "ok"
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# Check assignments:
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# Since worker1 has NWD on Friday:
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# - worker1 cannot work Friday.
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# - But worker1 can work Sat and Sun as a block!
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# So on Saturday and Sunday, worker1 should be assigned.
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# On Friday, worker2 should be assigned.
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for week in Rota.weeks:
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w1_fri = Rota.model.works[worker1.id, week, "Fri", "weekend"].value
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w1_sat = Rota.model.works[worker1.id, week, "Sat", "weekend"].value
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w1_sun = Rota.model.works[worker1.id, week, "Sun", "weekend"].value
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w2_fri = Rota.model.works[worker2.id, week, "Fri", "weekend"].value
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w2_sat = Rota.model.works[worker2.id, week, "Sat", "weekend"].value
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w2_sun = Rota.model.works[worker2.id, week, "Sun", "weekend"].value
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assert w1_fri == 0
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# Either worker1 works Sat/Sun and worker2 works Fri (split block)
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# OR worker2 works Fri/Sat/Sun (full block) and worker1 works nothing
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is_split = (w1_sat == 1 and w1_sun == 1 and w2_fri == 1 and w2_sat == 0 and w2_sun == 0)
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is_full_w2 = (w1_sat == 0 and w1_sun == 0 and w2_fri == 1 and w2_sat == 1 and w2_sun == 1)
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assert is_split or is_full_w2 |