def __calculate_left_work(self, pcb):
"""
we have to find out how much cpu-time is left in the workplan
:param pcb: the PCB of the target Process
:return: int. left service time
"""
pe = ProcessEvaluator() # we 'abuse' the process evaluator
# @TODO: change this. The evaluator module is not meant to be used this way
service_time = pe.getServiceTime(pcb)
return service_time
class ProcessEvaluatorTestCase(SimpleFiFoScenario):
def setUp(self):
super(ProcessEvaluatorTestCase, self).setUp()
scheduler = SchedulerFactory.getScheduler("FiFo", timeslice=10)
scheduler.initialize("A")
scheduler.run()
self.evaluator = ProcessEvaluator()
def test_getPeriodForPCB_01(self):
# test get pcb by name
period_B = self.evaluator.getPeriodForPCB("B")
self.assertTupleEqual(period_B, (10, 20))
def test_getPeriodForPCB_02(self):
period_A = self.evaluator.getPeriodForPCB("A")
self.assertTupleEqual(period_A, (0, 35))
def test_getPeriodForPCB_03(self):
# test get pcb by reference
period_B = self.evaluator.getPeriodForPCB(self.pcb2)
self.assertTupleEqual(period_B, (10, 20))
def test_getServiceTime_01(self):
service_time = self.evaluator.getServiceTime("A")
self.assertEqual(service_time, 20)
def test_getServiceTime_02(self):
service_time = self.evaluator.getServiceTime("B")
self.assertEqual(service_time, 10)
def test_getWaitTime_01(self):
wait_time = self.evaluator.getWaitTime("A")
self.assertEqual(wait_time, 15)
def test_getWaitTime_02(self):
wait_time = self.evaluator.getWaitTime("B")
self.assertEqual(wait_time, 0)
