def post(self, strategy, quantum=4, ts=10):
#import pdb; pdb.set_trace()
# parse process syntax
args = self.parser.parse_args()
processDescription = args.get("syntax")
init_p = args.get("initial_process")
# trying to parse the syntax
parseSyntax(processDescription)
# here comes the critical section: creating the Scheduler environmet including Singletons.
try:
# generate scheduler
scheduler = SchedulerFactory.getScheduler(str(strategy),
quantum=quantum,
timeslice=ts)
# run scheduler
scheduler.initialize(init_p)
scheduler.run()
# generate JSON
json_result = JsonSerializer().generateData()
except Exception as e:
# pass the exceptions to the api - it will translate it to json-requests
raise e
finally:
# we make sure that even after an exception, all Singletons get destroyed.
ProcessManager._drop()
SystemTimer._drop()
return json_result, 200
def test_work_in_append_queue(self):
"""
after a schedule step is done, we decrease the wait time on every waiting section
"""
p = PCB(Process("P"), state=State.L)
p.process.workplan = Workplan().work(10).wait(20)
p.process.doWork() # get rid of the work section
self.queue.append(p)
#and now tick
st = SystemTimer(timeunit=10)
st.tick() # tick will trigger a process.work() on every waiting process
#p.process.work(10)
for p in self.queue:
# 10 waits should be left...
self.assertEqual(p.process.workplan.pop().duration, 10)
def test_notify(self):
p = PCB(Process("Res_notify"), state=State.L)
print ProcessManager().jobs
p.process.workplan = Workplan().work(20).wait(15).work(25)
p.process.doWork(20) # get rid of work section
p.setWaiting()
#wait(15) in queue
self.queue.append(p)
st = SystemTimer(timeunit=10)
st.tick() #wait(5) left
self.assertListEqual(self.queue.pickup_ready_processes(), [])
st.tick() #should tick 5
# process should be in queue
ready_p_from_queue = self.queue.pickup_ready_processes()
self.assertListEqual(ready_p_from_queue, [p])
def tearDown(self):
ProcessManager._drop()
SystemTimer._drop()
def tearDown(self):
# cleanup process manager instances
ProcessManager._drop()
SystemTimer._drop()
def tearDown(self):
#clean all processes
ProcessManager._drop()
SystemTimer._drop()
def tearDown(self):
SystemTimer._drop()
ProcessManager._drop()
def tearDown(self):
# because the timer class is implemented as Singleton, we have weird side effects
# while unittesting. So we need un-register every listener after a run.
self.stimer.unregisterAll()
# ...hmm.. just to make sure, drop the SystemTimer instance
SystemTimer._drop()
def test_register_listener_01(self):
res1, res2 = Foobar(), Foobar()
stimer = SystemTimer()
stimer.tick()
def setUp(self):
self.stimer = SystemTimer()
self.stimer.timecounter = 0
self.stimer.timeunit = 10
class TimerCase(unittest.TestCase):
def setUp(self):
self.stimer = SystemTimer()
self.stimer.timecounter = 0
self.stimer.timeunit = 10
def test_createTimer(self):
self.assertIsInstance(self.stimer, SystemTimer)
# @unittest.skip('weird problem with the singleton...')
def test_timerTick_01(self):
# weird... it seems that unittest is not invalidating old TimerInstances.
for i in range(5):
self.stimer.tick()
self.assertEqual(self.stimer.timecounter, 50)
def test_register_listener_01(self):
res1, res2 = Foobar(), Foobar()
stimer = SystemTimer()
stimer.tick()
def test_singletonType_01(self):
t1 = SystemTimer()
t2 = SystemTimer()
self.assertIs(t1, t2)
def test_singletonType_02(self):
t1 = SystemTimer()
t2 = SystemTimer()
print "SystemTimer Object is", id(t1)
self.assertEqual(id(t1), id(t2))
def test_setAbsoluteTime(self):
timeunit = self.stimer.timeunit
self.stimer.tick()
self.stimer.setAbsoluteTime(timeunit * 2)
self.assertEqual(self.stimer.timecounter, timeunit * 2)
def test_next_tick_in(self):
timeunit = self.stimer.timeunit # usually, the next step is in 10 ms
self.stimer.next_tick_in(3) # but now, the next step is in 3ms
self.stimer.tick() # do a tick
self.assertEqual(self.stimer.timecounter, 3)
def tearDown(self):
# because the timer class is implemented as Singleton, we have weird side effects
# while unittesting. So we need un-register every listener after a run.
self.stimer.unregisterAll()
# ...hmm.. just to make sure, drop the SystemTimer instance
SystemTimer._drop()
def __init__(self):
st = SystemTimer()
st.register(self) # register
