def test_should_get_buffer_instructions_if_both_buffers_are_below_threshold(self):
buf = ScreenBuffer(page_size=2, buffer_size=5)
buf.append_record(self._get_line(11))
buf.append_record(self._get_line(12))
self.assertEqual(((12, False, 5), (11, True, 5)),
buf.get_buffer_instructions(ScreenBufferTest.NullDriver()))
def test_should_fallback_to_default_buffer_instructions_if_record_with_given_date_is_not_found(self):
dt = datetime.datetime.utcnow()
buf = ScreenBuffer(page_size=2, buffer_size=5)
self.queue.push(None)
drv = ScreenBufferTest.FakeDriver(self.queue, dt)
self.assertEqual(((None, True, 7),), buf.get_buffer_instructions(drv))
def test_should_get_buffer_instructions_for_forward_buffer(self):
buf = ScreenBuffer(page_size=2, buffer_size=5)
for i in range(10, 0, -1):
buf.prepend_record(self._get_line(i))
self.assertEqual(((10, False, 5),),
buf.get_buffer_instructions(ScreenBufferTest.NullDriver()))
def test_should_fallback_to_default_buffer_instructions_if_record_with_given_date_is_not_found(
self):
dt = datetime.datetime.utcnow()
buf = ScreenBuffer(page_size=2, buffer_size=5)
self.queue.push(None)
drv = ScreenBufferTest.FakeDriver(self.queue, dt)
self.assertEqual(((None, True, 7), ), buf.get_buffer_instructions(drv))
def test_should_get_buffer_instructions_for_forward_buffer(self):
buf = ScreenBuffer(page_size=2, buffer_size=5)
for i in range(10, 0, -1):
buf.prepend_record(self._get_line(i))
self.assertEqual(
((10, False, 5), ),
buf.get_buffer_instructions(ScreenBufferTest.NullDriver()))
def test_should_get_buffer_instructions_for_given_date(self):
dt = datetime.datetime.utcnow()
buf = ScreenBuffer(page_size=2, buffer_size=5)
self.queue.push(13)
self.queue.push(None)
drv = ScreenBufferTest.FakeDriver(self.queue, dt)
self.assertEqual(((12, False, 7), (13, True, 5)),
buf.get_buffer_instructions(drv))
def test_should_get_buffer_instructions_if_both_buffers_are_below_threshold(
self):
buf = ScreenBuffer(page_size=2, buffer_size=5)
buf.append_record(self._get_line(11))
buf.append_record(self._get_line(12))
self.assertEqual(
((12, False, 5), (11, True, 5)),
buf.get_buffer_instructions(ScreenBufferTest.NullDriver()))
def test_should_get_buffer_instructions_for_given_date(self):
dt = datetime.datetime.utcnow()
buf = ScreenBuffer(page_size=2, buffer_size=5)
self.queue.push(13)
self.queue.push(None)
drv = ScreenBufferTest.FakeDriver(self.queue, dt)
self.assertEqual(((12, False, 7), (13, True, 5)),
buf.get_buffer_instructions(drv))
def test_should_get_buffer_instructions_for_backward_buffer(self):
buf = ScreenBuffer(page_size=2, buffer_size=5)
for i in range(10, 20):
buf.append_record(self._get_line(i + 1))
for i in range(0, 3):
buf.go_to_previous_page()
self.assertEqual(((11, True, 5),),
buf.get_buffer_instructions(ScreenBufferTest.NullDriver()))
def test_should_get_buffer_instructions_for_backward_buffer(self):
buf = ScreenBuffer(page_size=2, buffer_size=5)
for i in range(10, 20):
buf.append_record(self._get_line(i + 1))
for i in range(0, 3):
buf.go_to_previous_page()
self.assertEqual(
((11, True, 5), ),
buf.get_buffer_instructions(ScreenBufferTest.NullDriver()))
def test_should_not_get_buffer_instructions_for_backward_buffer_if_below_threshold(self):
buf = ScreenBuffer(page_size=2, buffer_size=5)
for i in range(10, 20):
buf.append_record(self._get_line(i + 1))
buf.go_to_previous_page()
buf.go_to_previous_page()
buf.go_to_previous_line()
self.assertEqual(tuple(),
buf.get_buffer_instructions(ScreenBufferTest.NullDriver()))
def test_should_not_get_buffer_instructions_for_backward_buffer_if_below_threshold(
self):
buf = ScreenBuffer(page_size=2, buffer_size=5)
for i in range(10, 20):
buf.append_record(self._get_line(i + 1))
buf.go_to_previous_page()
buf.go_to_previous_page()
buf.go_to_previous_line()
self.assertEqual(
tuple(),
buf.get_buffer_instructions(ScreenBufferTest.NullDriver()))
def test_should_get_buffer_instructions_for_empty_buffer(self):
buf = ScreenBuffer(page_size=2, buffer_size=5)
self.assertEqual(
((None, True, 7), ),
buf.get_buffer_instructions(ScreenBufferTest.NullDriver()))
def test_should_get_buffer_instructions_for_empty_buffer(self):
buf = ScreenBuffer(page_size=2, buffer_size=5)
self.assertEqual(((None, True, 7),),
buf.get_buffer_instructions(ScreenBufferTest.NullDriver()))
