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)
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)