def test_force_schedule_optional_tasks_3(self) -> None:
"""Check an error is raised if ever one of the task is not optional."""
ps.SchedulingProblem("ForceScheduleOptionalTasks3", horizon=14)
task_1 = ps.VariableDurationTask("task1") # this one is not optional
task_2 = ps.FixedDurationTask("task2", duration=7, optional=True)
with self.assertRaises(TypeError):
ps.ForceScheduleNOptionalTasks([task_1, task_2], 2)
def test_get_scheduled_tasks(self) -> None:
# task_1 cannot be scheduled, only tasks 2 and 3 can be
pb = ps.SchedulingProblem("GetScheduledTasks", horizon=14)
task_1 = ps.FixedDurationTask("task1", duration=15, optional=True)
task_2 = ps.FixedDurationTask("task2", duration=7, optional=True)
task_3 = ps.FixedDurationTask("task3", duration=2, optional=True)
ps.ForceScheduleNOptionalTasks([task_1, task_2, task_3], 2)
solver = ps.SchedulingSolver(pb)
solution = solver.solve()
self.assertTrue(solution)
scheduled_tasks_dictionary = solution.get_scheduled_tasks()
self.assertEqual(len(scheduled_tasks_dictionary), 2)
self.assertTrue("task2" in scheduled_tasks_dictionary)
self.assertTrue("task3" in scheduled_tasks_dictionary)
def test_force_schedule_optional_tasks_2(self) -> None:
"""Just change the number of tasks to be scheduled."""
pb = ps.SchedulingProblem("ForceScheduleOptionalTasks2", horizon=14)
task_1 = ps.VariableDurationTask("task1", optional=True)
task_2 = ps.FixedDurationTask("task2", duration=7, optional=True)
task_3 = ps.FixedDurationTask("task3", duration=2, optional=True)
ps.ForceScheduleNOptionalTasks([task_1, task_2, task_3], 2)
solver = ps.SchedulingSolver(pb)
solution = solver.solve()
self.assertTrue(solution)
results = [
solution.tasks[task_1.name].scheduled,
solution.tasks[task_2.name].scheduled,
solution.tasks[task_3.name].scheduled,
]
self.assertEqual(results.count(True), 2)
def test_force_schedule_optional_tasks(self) -> None:
"""task_3 is not scheduled, because task_2 should not."""
pb = ps.SchedulingProblem("ForceScheduleOptionalTasks", horizon=9)
task_1 = ps.VariableDurationTask("task1", optional=True)
task_2 = ps.FixedDurationTask("task2", duration=4, optional=True)
task_3 = ps.FixedDurationTask("task3", duration=1, optional=True)
ps.ForceScheduleNOptionalTasks([task_1, task_2, task_3], 1)
solver = ps.SchedulingSolver(pb)
solution = solver.solve()
self.assertTrue(solution)
results = [
solution.tasks[task_1.name].scheduled,
solution.tasks[task_2.name].scheduled,
solution.tasks[task_3.name].scheduled,
]
self.assertEqual(results.count(True), 1)