def test_create_indicator(self) -> None:
pb = ps.SchedulingProblem("CreateIndicator", horizon=3)
i_1 = ps.Indicator("SquareHorizon", pb.horizon**2) # ArithRef
self.assertIsInstance(i_1, ps.Indicator)
i_2 = ps.Indicator("IsLooooong ?", pb.horizon > 1000) # BoolRef
self.assertIsInstance(i_2, ps.Indicator)
with self.assertRaises(TypeError):
ps.Indicator("foo", 4)
def test_indicator_flowtime(self) -> None:
problem = ps.SchedulingProblem("IndicatorFlowTime", horizon=2)
t_1 = ps.FixedDurationTask("t1", 2)
t_2 = ps.FixedDurationTask("t2", 2)
i_1 = ps.Indicator("FlowTime", t_1.end + t_2.end)
solution = ps.SchedulingSolver(problem).solve()
self.assertTrue(solution)
self.assertEqual(solution.indicators[i_1.name], 4)
def test_incremental_optimizer_1(self) -> None:
problem = ps.SchedulingProblem("IncrementalOptimizer1", horizon=100)
task_1 = ps.FixedDurationTask("task1", duration=2)
task_1_start_ind = ps.Indicator("Task1Start", task_1.start)
problem.maximize_indicator(task_1_start_ind)
solver = ps.SchedulingSolver(problem)
solution = solver.solve()
self.assertTrue(solution)
self.assertEqual(solution.indicators[task_1_start_ind.name], 98)
def test_multi_two_tasks_1(self) -> None:
pb = ps.SchedulingProblem("MultiObjective1", horizon=20)
task_1 = ps.FixedDurationTask("task1", duration=3)
task_2 = ps.FixedDurationTask("task2", duration=3)
pb.add_constraint(task_1.end == 20 - task_2.start)
# Maximize only task_1 end
ind = ps.Indicator("Task1End", task_1.end)
pb.maximize_indicator(ind)
solution = ps.SchedulingSolver(pb).solve()
self.assertTrue(solution)
self.assertEqual(solution.tasks[task_1.name].end, 20)
self.assertEqual(solution.tasks[task_2.name].start, 0)