def test_scroll_past_top(self):
'''Test to scroll past top, should end up at top '''
lines = 70
extra_lines = 5
scroll_win = ScrollWindow(WindowArea(lines, 70, 0, 0,
scrollable_lines=lines + extra_lines),
color_theme=ColorTheme(force_bw=True))
self.assertTrue(scroll_win.at_top())
scroll_win.scroll(lines=-3)
self.assertTrue(scroll_win.at_top())
def test_scroll_down_up_arrow(self):
'''Test to scroll down and up with arrow key '''
lines = 4
extra_lines = 9
scroll_win = ScrollWindow(WindowArea(lines, 70, 0, 0,
scrollable_lines=lines + extra_lines),
color_theme=ColorTheme(force_bw=True))
scroll_win.active_object = None
self.assertTrue(scroll_win.at_top())
key = scroll_win.on_arrow_key(curses.KEY_DOWN)
self.assertEqual(key, None)
self.assertFalse(scroll_win.at_top())
key = scroll_win.on_arrow_key(curses.KEY_UP)
self.assertEqual(key, None)
self.assertTrue(scroll_win.at_top())
key = scroll_win.on_arrow_key(curses.KEY_UP)
self.assertEqual(key, curses.KEY_UP)
self.assertTrue(scroll_win.at_top())
scroll_win.scroll(extra_lines-2)
self.assertFalse(scroll_win.at_bottom())
scroll_win.on_arrow_key(curses.KEY_DOWN)
self.assertTrue(scroll_win.at_bottom())
scroll_win.scroll(-(extra_lines-2))
self.assertFalse(scroll_win.at_top())
scroll_win.on_arrow_key(curses.KEY_UP)
self.assertTrue(scroll_win.at_top())