def test_dispatch_01(self):
p1 = PCB(Process())
cpu = CPU()
p1.setReady() # change state from inactive to ready
old_process = cpu.dispatch(p1)
# because p1 is our first process, we assume that the old process is none
self.assertIsInstance(old_process, type(None))
def test_append_to_matching_queue_04(self):
# waiting section
pcbX = PCB(Process("Wa_pro"))
pcbX.process.workplan = Workplan().work(15).wait(20)
pcbX.setReady()
pcbX.process.doWork(15) # get rid of work section <--------|
pcbX.setRunning() # <- this should be done during scheduling --|
self.scheduler.addToMatchingQueue(pcbX)
self.assertListEqual(self.scheduler.ea_queues[0].queue, [pcbX])
class StateMachineCase(unittest.TestCase):
"""
See Abb.2.2 bachelors thesis Christoph Gerneth 2015 for process state model
"""
def setUp(self):
ProcessManager().jobs = [] # make sure the manager is clean
self.pcb = PCB(Process('state-test'))
def test_pcb_states_IB(self):
#process is in state I by default
self.pcb.setReady()
pass
def test_pcb_states_BL(self):
self.pcb.state = State.B # initialize process
self.pcb.setRunning()
pass
def test_valid_states(self):
"""
covering all edges of the graph.
"""
self.pcb.state = State.I # we start with an inactive state
self.pcb.setReady() # I -> B
self.pcb.setRunning() # B -> L
self.pcb.setWaiting() # L -> W
self.pcb.setReady() # W -> B
self.pcb.setRunning() # B -> L (this needs to be done twice, sorry)
self.pcb.setInactive()# L -> I
self.assertIs(self.pcb.state, State.I)
def test_valid_states_02(self):
"""
should do nothing...
"""
self.pcb.state = State.I
self.pcb.setInactive()
pass
def test_invalid_01(self):
self.pcb.state = State.I
self.assertRaises(RuntimeError, self.pcb.setRunning)
