test_container.py 文件源码

def test_grid_flow(self):
        gf = urwid.GridFlow([], 5, 1, 0, 'left')
        self.assertEqual(gf.focus, None)
        self.assertEqual(gf.contents, [])
        self.assertRaises(IndexError, lambda: getattr(gf, 'focus_position'))
        self.assertRaises(IndexError, lambda: setattr(gf, 'focus_position',
            None))
        self.assertRaises(IndexError, lambda: setattr(gf, 'focus_position', 0))
        self.assertEqual(gf.options(), ('given', 5))
        self.assertEqual(gf.options(width_amount=9), ('given', 9))
        self.assertRaises(urwid.GridFlowError, lambda: gf.options(
            'pack', None))

        t1 = urwid.Text(u'one')
        t2 = urwid.Text(u'two')
        gf = urwid.GridFlow([t1, t2], 5, 1, 0, 'left')
        self.assertEqual(gf.focus, t1)
        self.assertEqual(gf.focus_position, 0)
        self.assertEqual(gf.contents, [(t1, ('given', 5)), (t2, ('given', 5))])
        gf.focus_position = 1
        self.assertEqual(gf.focus, t2)
        self.assertEqual(gf.focus_position, 1)
        gf.contents.insert(0, (t2, ('given', 5)))
        self.assertEqual(gf.focus_position, 2)
        self.assertRaises(urwid.GridFlowError, lambda: gf.contents.append(()))
        self.assertRaises(urwid.GridFlowError, lambda: gf.contents.insert(1,
            (t1, ('pack', None))))
        gf.focus_position = 0
        self.assertRaises(IndexError, lambda: setattr(gf, 'focus_position', -1))
        self.assertRaises(IndexError, lambda: setattr(gf, 'focus_position', 3))
        # old methods:
        gf.set_focus(0)
        self.assertRaises(IndexError, lambda: gf.set_focus(-1))
        self.assertRaises(IndexError, lambda: gf.set_focus(3))
        gf.set_focus(t1)
        self.assertEqual(gf.focus_position, 1)
        self.assertRaises(ValueError, lambda: gf.set_focus('nonexistant'))