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_append_record_on_non_empty_buffer(self): buf = ScreenBuffer(page_size=2, buffer_size=5) buf.append_record(self._get_line(2)) buf.append_record(self._get_line(3)) cur = buf.get_current_lines() self.assertEqual(2, len(cur)) self.assertEqual('2', cur[0].message) self.assertEqual('3', cur[1].message)
def test_should_append_record_on_non_empty_buffer(self): buf = ScreenBuffer(page_size=2, buffer_size=5) buf.append_record(self._get_line(2)) buf.append_record(self._get_line(3)) cur = buf.get_current_lines() self.assertEqual(2, len(cur)) self.assertEqual('2', cur[0].message) self.assertEqual('3', cur[1].message)
def test_should_append_multi_line_record_spanning_over_end_of_buffer(self): buf = ScreenBuffer(page_size=2, buffer_size=5) buf.append_record(self._get_line(1)) buf.append_record(self._get_line(2, 'a\nb')) cur = buf.get_current_lines() self.assertEqual(2, len(cur)) self.assertEqual('a', cur[0].message) self.assertEqual('b', cur[1].message)
def test_should_append_multi_line_record_spanning_over_end_of_buffer(self): buf = ScreenBuffer(page_size=2, buffer_size=5) buf.append_record(self._get_line(1)) buf.append_record(self._get_line(2, 'a\nb')) cur = buf.get_current_lines() self.assertEqual(2, len(cur)) self.assertEqual('a', cur[0].message) self.assertEqual('b', cur[1].message)
def test_should_append_record_on_empty_buffer(self): buf = ScreenBuffer(page_size=2, buffer_size=5) buf.add_observer(self.observer.notify) buf.append_record(self._get_line(2)) self.assertEqual(1, self.observer.count) cur = buf.get_current_lines() self.assertEqual(1, len(cur)) self.assertEqual('2', cur[0].message)
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_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_go_to_next_page_with_less_lines_than_page_size(self): buf = ScreenBuffer(page_size=2, buffer_size=5) buf.append_record(self._get_line(1)) buf.go_to_next_page() cur = buf.get_current_lines() self.assertEqual(1, len(cur)) self.assertEqual('1', cur[0].message)
def test_should_go_to_next_page_with_less_lines_than_page_size(self): buf = ScreenBuffer(page_size=2, buffer_size=5) buf.append_record(self._get_line(1)) buf.go_to_next_page() cur = buf.get_current_lines() self.assertEqual(1, len(cur)) self.assertEqual('1', cur[0].message)
def test_should_append_record_on_empty_buffer(self): buf = ScreenBuffer(page_size=2, buffer_size=5) buf.add_observer(self.observer.notify) buf.append_record(self._get_line(2)) self.assertEqual(1, self.observer.count) cur = buf.get_current_lines() self.assertEqual(1, len(cur)) self.assertEqual('2', cur[0].message)
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_prepend_record_on_buffer_not_at_end_of_screen(self): buf = ScreenBuffer(page_size=2, buffer_size=5) buf.append_record(self._get_line(2)) buf.append_record(self._get_line(3)) buf.append_record(self._get_line(4)) buf.go_to_previous_line() buf.prepend_record(self._get_line(1)) cur = buf.get_current_lines() self.assertEqual(2, len(cur)) self.assertEqual('2', cur[0].message) self.assertEqual('3', cur[1].message)
def test_should_go_to_next_line(self): buf = ScreenBuffer(page_size=2, buffer_size=5) for i in range(10): buf.append_record(self._get_line(i + 1)) buf.go_to_previous_page() buf.go_to_next_line() cur = buf.get_current_lines() self.assertEqual(2, len(cur)) self.assertEqual('8', cur[0].message)
def test_should_go_to_next_line(self): buf = ScreenBuffer(page_size=2, buffer_size=5) for i in range(10): buf.append_record(self._get_line(i + 1)) buf.go_to_previous_page() buf.go_to_next_line() cur = buf.get_current_lines() self.assertEqual(2, len(cur)) self.assertEqual('8', cur[0].message)
def test_should_prepend_record_on_buffer_not_at_end_of_screen(self): buf = ScreenBuffer(page_size=2, buffer_size=5) buf.append_record(self._get_line(2)) buf.append_record(self._get_line(3)) buf.append_record(self._get_line(4)) buf.go_to_previous_line() buf.prepend_record(self._get_line(1)) cur = buf.get_current_lines() self.assertEqual(2, len(cur)) self.assertEqual('2', cur[0].message) self.assertEqual('3', cur[1].message)
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_auto_scroll_on_append_if_screen_is_at_end_of_buffer(self): buf = ScreenBuffer(page_size=2, buffer_size=5) buf.append_record(self._get_line(2)) buf.append_record(self._get_line(3)) buf.add_observer(self.observer.notify) buf.append_record(self._get_line(4)) cur = buf.get_current_lines() self.assertEqual(2, len(cur)) self.assertEqual('3', cur[0].message) self.assertEqual('4', cur[1].message) self.assertEqual(1, self.observer.count)
def test_should_auto_scroll_on_append_if_screen_is_at_end_of_buffer(self): buf = ScreenBuffer(page_size=2, buffer_size=5) buf.append_record(self._get_line(2)) buf.append_record(self._get_line(3)) buf.add_observer(self.observer.notify) buf.append_record(self._get_line(4)) cur = buf.get_current_lines() self.assertEqual(2, len(cur)) self.assertEqual('3', cur[0].message) self.assertEqual('4', cur[1].message) self.assertEqual(1, self.observer.count)
def test_should_auto_scroll_after_manual_scroll(self): dt = datetime.datetime.utcnow() buf = ScreenBuffer(page_size=2, buffer_size=5) self.queue.push(13) self.queue.push(None) self.queue.push_forward_records(13, 7) self.queue.push_forward_records(12, 5) drv = ScreenBufferTest.FakeDriver(self.queue, dt) buf.get_records(drv) buf.go_to_next_page() buf.go_to_next_page() buf.go_to_next_line() buf.append_record(self._get_line(20)) cur = buf.get_current_lines() self.assertEqual(2, len(cur)) self.assertEqual('19', cur[0].message) self.assertEqual('20', cur[1].message)
def test_should_auto_scroll_after_manual_scroll(self): dt = datetime.datetime.utcnow() buf = ScreenBuffer(page_size=2, buffer_size=5) self.queue.push(13) self.queue.push(None) self.queue.push_forward_records(13, 7) self.queue.push_forward_records(12, 5) drv = ScreenBufferTest.FakeDriver(self.queue, dt) buf.get_records(drv) buf.go_to_next_page() buf.go_to_next_page() buf.go_to_next_line() buf.append_record(self._get_line(20)) cur = buf.get_current_lines() self.assertEqual(2, len(cur)) self.assertEqual('19', cur[0].message) self.assertEqual('20', cur[1].message)
def test_should_not_auto_scroll_if_not_at_end_of_buffer(self): buf = ScreenBuffer(page_size=2, buffer_size=5) buf.append_record(self._get_line(2)) buf.append_record(self._get_line(3)) buf.append_record(self._get_line(4)) buf.go_to_previous_line() buf.add_observer(self.observer.notify) buf.append_record(self._get_line(5)) cur = buf.get_current_lines() self.assertEqual(2, len(cur)) self.assertEqual('2', cur[0].message) self.assertEqual(0, self.observer.count)
def test_should_not_auto_scroll_if_not_at_end_of_buffer(self): buf = ScreenBuffer(page_size=2, buffer_size=5) buf.append_record(self._get_line(2)) buf.append_record(self._get_line(3)) buf.append_record(self._get_line(4)) buf.go_to_previous_line() buf.add_observer(self.observer.notify) buf.append_record(self._get_line(5)) cur = buf.get_current_lines() self.assertEqual(2, len(cur)) self.assertEqual('2', cur[0].message) self.assertEqual(0, self.observer.count)