class PageCreatorTest(unittest.TestCase):
# Arrange
def setUp(self):
self.page_creator = PageCreator()
self.pcb = PCB(0, 20, BlockHolder(None))
def test_whenICreatePagesForPCB_ThenTheInfoHolderHasThemAsItShould(self):
self.page_creator.create(self.pcb, 5)
self.assertEqual(len(self.pcb.get_info_holder().get_hold()), 4)
def test_whenICreatePagesForPCB_ThenTheInfoTheyHaveIsCorrect(self):
self.page_creator.create(self.pcb, 5)
page1 = self.pcb.get_info_holder().get_hold()[0]
page2 = self.pcb.get_info_holder().get_hold()[1]
page3 = self.pcb.get_info_holder().get_hold()[2]
page4 = self.pcb.get_info_holder().get_hold()[3]
self.assertEqual(page1.get_starting_index(), 0)
self.assertEqual(page1.get_ending_index(), 4)
self.assertEqual(page1.get_amount_of_instructions(), 5)
self.assertEqual(page2.get_starting_index(), 5)
self.assertEqual(page2.get_ending_index(), 9)
self.assertEqual(page2.get_amount_of_instructions(), 5)
self.assertEqual(page3.get_starting_index(), 10)
self.assertEqual(page3.get_ending_index(), 14)
self.assertEqual(page3.get_amount_of_instructions(), 5)
self.assertEqual(page4.get_starting_index(), 15)
self.assertEqual(page4.get_ending_index(), 19)
self.assertEqual(page4.get_amount_of_instructions(), 5)
class PageCreatorTest(unittest.TestCase):
# Arrange
def setUp(self):
self.page_creator = PageCreator()
self.pcb = PCB(0, 20, BlockHolder(None))
def test_whenICreatePagesForPCB_ThenTheInfoHolderHasThemAsItShould(self):
self.page_creator.create(self.pcb, 5)
self.assertEqual(len(self.pcb.get_info_holder().get_hold()), 4)
def test_whenICreatePagesForPCB_ThenTheInfoTheyHaveIsCorrect(self):
self.page_creator.create(self.pcb, 5)
page1 = self.pcb.get_info_holder().get_hold()[0]
page2 = self.pcb.get_info_holder().get_hold()[1]
page3 = self.pcb.get_info_holder().get_hold()[2]
page4 = self.pcb.get_info_holder().get_hold()[3]
self.assertEqual(page1.get_starting_index(), 0)
self.assertEqual(page1.get_ending_index(), 4)
self.assertEqual(page1.get_amount_of_instructions(), 5)
self.assertEqual(page2.get_starting_index(), 5)
self.assertEqual(page2.get_ending_index(), 9)
self.assertEqual(page2.get_amount_of_instructions(), 5)
self.assertEqual(page3.get_starting_index(), 10)
self.assertEqual(page3.get_ending_index(), 14)
self.assertEqual(page3.get_amount_of_instructions(), 5)
self.assertEqual(page4.get_starting_index(), 15)
self.assertEqual(page4.get_ending_index(), 19)
self.assertEqual(page4.get_amount_of_instructions(), 5)
def test_whenIAddManyPCBs_thenItHasThatManyBlocks(self):
pcb2 = PCB(1, 2, BlockHolder(None))
pcb3 = PCB(2, 4, BlockHolder(None))
pcb4 = PCB(2, 4, BlockHolder(None))
self.policy.assign_to_memory(pcb2)
self.policy.assign_to_memory(pcb3)
self.policy.assign_to_memory(pcb4)
self.assertEqual(len(self.policy._blocks), 4)
def setUp(self):
self.frame1 = Frame(0, 9, BlockHolder(None))
self.frame2 = Frame(1, 9, BlockHolder(None))
self.frame3 = Frame(2, 9, BlockHolder(None))
self.frame4 = Frame(3, 9, BlockHolder(None))
self.frames = [self.frame1, self.frame2, self.frame3, self.frame4]
self.frame_manager = FrameManager(self.frames)
self.page_creator = PageCreator()
self.pcb = PCB(0, 30, BlockHolder(None))
self.page_creator.create(self.pcb, 5)
def test_whenINeedToCompact_thenItCompacts(self):
pcb1 = PCB(0, 4, BlockHolder(None))
pcb2 = PCB(1, 2, BlockHolder(None))
pcb3 = PCB(2, 4, BlockHolder(None))
pcb4 = PCB(2, 4, BlockHolder(None))
self.policy.assign_to_memory(pcb1)
self.policy.assign_to_memory(pcb2)
pcb5 = PCB(3, 3, BlockHolder(None))
self.policy.assign_to_memory(pcb5)
self.assertEqual(len(self.policy._blocks), 4)
class FrameManagerTest(unittest.TestCase):
# Arrange
def setUp(self):
self.frame1 = Frame(0, 9, BlockHolder(None))
self.frame2 = Frame(1, 9, BlockHolder(None))
self.frame3 = Frame(2, 9, BlockHolder(None))
self.frame4 = Frame(3, 9, BlockHolder(None))
self.frames = [self.frame1, self.frame2, self.frame3, self.frame4]
self.frame_manager = FrameManager(self.frames)
self.page_creator = PageCreator()
self.pcb = PCB(0, 30, BlockHolder(None))
self.page_creator.create(self.pcb, 5)
def test_whenIAssignAPCBTheFirstTime_ThenFrameManagerUsesTheFirstFrame(self):
# Pages
first_frame = self.frame_manager.get_frames()[0]
self.frame_manager.assign_page_to_frame(self.pcb)
first_pcb_page = self.pcb.get_info_holder().get_hold()[0]
self.assertEquals(first_frame.get_page(), first_pcb_page)
def test_whenTheFirstPCBPageIsUsedAndPCBIsAssigned_ThenFrameManagerUsesTheSecondFrame(self):
# Pages
first_pcb_page = self.pcb.get_info_holder().get_hold()[0]
second_pcb_page =self.pcb.get_info_holder().get_hold()[1]
self.frame_manager.assign_page_to_frame(self.pcb)
first_pcb_page.set_used()
self.frame_manager.assign_page_to_frame(self.pcb)
second_frame = self.frame_manager.get_frames()[1]
self.assertEquals(second_frame.get_page(), second_pcb_page)
def test_whenAllFramesAreUsedAndPCBAssignsOneMorePage_ThenTheYoungestFrameGetsEmpty(self):
# Pages
first_pcb_page = self.pcb.get_info_holder().get_hold()[0]
second_pcb_page =self.pcb.get_info_holder().get_hold()[1]
third_pcb_page = self.pcb.get_info_holder().get_hold()[2]
forth_pcb_page = self.pcb.get_info_holder().get_hold()[3]
fifth_pcb_page = self.pcb.get_info_holder().get_hold()[4]
self.frame_manager.assign_page_to_frame(self.pcb)
first_pcb_page.set_used()
self.frame_manager.assign_page_to_frame(self.pcb)
second_pcb_page.set_used()
self.frame_manager.assign_page_to_frame(self.pcb)
third_pcb_page.set_used()
self.frame_manager.assign_page_to_frame(self.pcb)
forth_pcb_page.set_used()
forth_frame = self.frame_manager.get_frames()[3]
self.frame_manager.assign_page_to_frame(self.pcb)
self.assertEqual(forth_frame.get_page(), fifth_pcb_page)
def setUp(self):
self.hdd = HDD(10)
self.fs = self.hdd.generate_file_system()
self.instruction1 = InstructionIO()
self.instruction2 = InstructionCPU()
self.instructionList1 = [self.instruction1, self.instruction2]
self.program1 = Program(self.instructionList1, "AProgram")
self.fs.add_file("AProgram", self.program1)
self.file1 = self.fs.get_program("AProgram")
self.pcb = PCB(0, 2, BlockHolder(self.file1))
self.mm = MemoryManager()
self.mm.set_as_ca(FirstFit())
self.mm.write(self.pcb)
class PCBTest(unittest.TestCase):
#Arrange
def setUp(self):
self.hdd = HDD(10)
self.fs = self.hdd.generate_file_system()
self.instruction1 = InstructionIO()
self.instruction2 = InstructionCPU()
self.instructionList1 = [self.instruction1, self.instruction2]
self.program1 = Program(self.instructionList1, "AProgram")
self.fs.add_file("AProgram", self.program1)
self.file1 = self.fs.get_program("AProgram")
self.pcb = PCB(0, 2, BlockHolder(self.file1))
self.mm = MemoryManager()
self.mm.set_as_ca(FirstFit())
self.mm.write(self.pcb)
def test_whenIHaveAPCBAndItsIncremented_thenIHaveAPCBWithOneMoreInstructionIndex(self):
self.pcb.increment()
self.assertEqual(self.pcb.get_pc(), 3)
def test_whenIHaveAPCBAndItsPriorityItsChanged_thenItsDifferent(self):
self.pcb.set_priority(PCBPriorities().getPriorities().LOW)
self.pcb.increase_priority()
self.assertEqual(self.pcb._priority, PCBPriorities().getPriorities().MEDIUM)
class PCBTest(unittest.TestCase):
#Arrange
def setUp(self):
self.hdd = HDD(10)
self.fs = self.hdd.generate_file_system()
self.instruction1 = InstructionIO()
self.instruction2 = InstructionCPU()
self.instructionList1 = [self.instruction1, self.instruction2]
self.program1 = Program(self.instructionList1, "AProgram")
self.fs.add_file("AProgram", self.program1)
self.file1 = self.fs.get_program("AProgram")
self.pcb = PCB(0, 2, BlockHolder(self.file1))
self.mm = MemoryManager()
self.mm.set_as_ca(FirstFit())
self.mm.write(self.pcb)
def test_whenIHaveAPCBAndItsIncremented_thenIHaveAPCBWithOneMoreInstructionIndex(
self):
self.pcb.increment()
self.assertEqual(self.pcb.get_pc(), 3)
def test_whenIHaveAPCBAndItsPriorityItsChanged_thenItsDifferent(self):
self.pcb.set_priority(PCBPriorities().getPriorities().LOW)
self.pcb.increase_priority()
self.assertEqual(self.pcb._priority,
PCBPriorities().getPriorities().MEDIUM)
def setUp(self):
self.pcb = PCB(0, 0, None)
self.block1 = Block(0, 0, 3) # 4 Not enough size.
self.block2 = Block(1, 4, 11) # 6 First Fit.
self.block3 = Block(2, 10, 12) # 3 Just another block with not enough size.
self.block4 = Block(3, 13, 23) # 11 Worst Fit.
self.block5 = Block(3, 24, 29) # 6 Another block.
self.block6 = Block(4, 30, 34) # 5 Best Fit.
self.blocks = [self.block1, self.block2, self.block3, self.block4, self.block5, self.block6] # This list is a list of Free Blocks.
def setUp(self):
self.hdd = HDD(10)
self.fs = self.hdd.generate_file_system()
self.instruction1 = InstructionIO()
self.instruction2 = InstructionCPU()
self.instructionList1 = [self.instruction1, self.instruction2]
self.program1 = Program(self.instructionList1, "AProgram")
self.fs.add_file("AProgram", self.program1)
self.file1 = self.fs.get_program("AProgram")
self.pcb = PCB(0, 2, BlockHolder(self.file1))
self.mm = MemoryManager()
self.mm.set_as_ca(FirstFit())
self.mm.write(self.pcb)
class TestScheduler(unittest.TestCase):
# Arrange
def setUp(self):
self.pcb1 = PCB(3, 5, 10)
self.pcb2 = PCB(2, 5, 10)
self.pcb3 = PCB(1, 5, 10)
self.scheduler = Scheduler()
def test_whenISetTheSchedulerPolicyAsFifo_thenIThePCBsAsThePriorityStates(
self):
self.scheduler.set_as_fifo()
self.scheduler.add(self.pcb1)
self.scheduler.add(self.pcb2)
self.scheduler.add(self.pcb3)
self.assertEquals(self.scheduler.next(), self.pcb1)
self.assertEquals(self.scheduler.next(), self.pcb2)
self.assertEquals(self.scheduler.next(), self.pcb3)
def test_whenISetTheSchedulerPolicyAsPriority_thenIThePCBsAsThePriorityStates(
self):
self.scheduler.set_as_pq()
self.pcb1.set_priority(PCBPriorities().getPriorities().LOW)
self.pcb2.set_priority(PCBPriorities().getPriorities().MEDIUM)
self.pcb3.set_priority(PCBPriorities().getPriorities().HIGH)
self.scheduler.add(self.pcb1)
self.scheduler.add(self.pcb2)
self.scheduler.add(self.pcb3)
self.assertEquals(self.scheduler.next(), self.pcb3)
self.assertEquals(self.scheduler.next(), self.pcb2)
self.assertEquals(self.scheduler.next(), self.pcb1)
def test_whenISetTheSchedulerPolicyAsRR_thenIThePCBsAsThePriorityStates(
self):
self.scheduler.set_as_rr(5)
self.scheduler.add(self.pcb1)
self.scheduler.add(self.pcb2)
self.scheduler.add(self.pcb3)
self.assertEquals(self.scheduler.next(), self.pcb1)
self.assertEquals(self.scheduler.next(), self.pcb2)
self.assertEquals(self.scheduler.next(), self.pcb3)
class TestScheduler(unittest.TestCase):
# Arrange
def setUp(self):
self.pcb1 = PCB(3, 5, 10)
self.pcb2 = PCB(2, 5, 10)
self.pcb3 = PCB(1, 5, 10)
self.scheduler = Scheduler()
def test_whenISetTheSchedulerPolicyAsFifo_thenIThePCBsAsThePriorityStates(self):
self.scheduler.set_as_fifo()
self.scheduler.add(self.pcb1)
self.scheduler.add(self.pcb2)
self.scheduler.add(self.pcb3)
self.assertEquals(self.scheduler.next(), self.pcb1)
self.assertEquals(self.scheduler.next(), self.pcb2)
self.assertEquals(self.scheduler.next(), self.pcb3)
def test_whenISetTheSchedulerPolicyAsPriority_thenIThePCBsAsThePriorityStates(self):
self.scheduler.set_as_pq()
self.pcb1.set_priority(PCBPriorities().getPriorities().LOW)
self.pcb2.set_priority(PCBPriorities().getPriorities().MEDIUM)
self.pcb3.set_priority(PCBPriorities().getPriorities().HIGH)
self.scheduler.add(self.pcb1)
self.scheduler.add(self.pcb2)
self.scheduler.add(self.pcb3)
self.assertEquals(self.scheduler.next(), self.pcb3)
self.assertEquals(self.scheduler.next(), self.pcb2)
self.assertEquals(self.scheduler.next(), self.pcb1)
def test_whenISetTheSchedulerPolicyAsRR_thenIThePCBsAsThePriorityStates(self):
self.scheduler.set_as_rr(5)
self.scheduler.add(self.pcb1)
self.scheduler.add(self.pcb2)
self.scheduler.add(self.pcb3)
self.assertEquals(self.scheduler.next(), self.pcb1)
self.assertEquals(self.scheduler.next(), self.pcb2)
self.assertEquals(self.scheduler.next(), self.pcb3)
def setUp(self):
self.pcb1 = PCB(0, 4, BlockHolder(None))
self.caPolicy = FirstFit()
self.memory = Memory(20)
self.policy = ContinuousAssignment(self.memory, self.caPolicy)
def setUp(self):
self.pcb1 = PCB(3, 5, 10)
self.pcb2 = PCB(2, 5, 10)
self.pcb3 = PCB(1, 5, 10)
self.scheduler = Scheduler()
def setUp(self):
self.memory = Memory(50)
self.policy = Paging(self.memory, 10)
self.pcb1 = PCB(0, 25, PageHolder(None))
self.pcb2 = PCB(1, 16, PageHolder(None))
def setUp(self):
self.page_creator = PageCreator()
self.pcb = PCB(0, 20, BlockHolder(None))
def setUp(self):
self.page_creator = PageCreator()
self.pcb = PCB(0, 20, BlockHolder(None))
def setUp(self):
self.pcb1 = PCB(3, 5, 10)
self.pcb2 = PCB(2, 5, 10)
self.pcb3 = PCB(1, 5, 10)
self.scheduler = Scheduler()
