test_container.py 文件源码

def test_pile(self):
        t1 = urwid.Text(u'one')
        t2 = urwid.Text(u'two')
        t3 = urwid.Text(u'three')
        sf = urwid.SolidFill('x')
        p = urwid.Pile([])
        self.assertEqual(p.focus, None)
        self.assertRaises(IndexError, lambda: getattr(p, 'focus_position'))
        self.assertRaises(IndexError, lambda: setattr(p, 'focus_position',
            None))
        self.assertRaises(IndexError, lambda: setattr(p, 'focus_position', 0))
        p.contents = [(t1, ('pack', None)), (t2, ('pack', None)),
            (sf, ('given', 3)), (t3, ('pack', None))]
        p.focus_position = 1
        del p.contents[0]
        self.assertEqual(p.focus_position, 0)
        p.contents[0:0] = [(t3, ('pack', None)), (t2, ('pack', None))]
        p.contents.insert(3, (t1, ('pack', None)))
        self.assertEqual(p.focus_position, 2)
        self.assertRaises(urwid.PileError, lambda: p.contents.append(t1))
        self.assertRaises(urwid.PileError, lambda: p.contents.append((t1, None)))
        self.assertRaises(urwid.PileError, lambda: p.contents.append((t1, 'given')))

        p = urwid.Pile([t1, t2])
        self.assertEqual(p.focus, t1)
        self.assertEqual(p.focus_position, 0)
        p.focus_position = 1
        self.assertEqual(p.focus, t2)
        self.assertEqual(p.focus_position, 1)
        p.focus_position = 0
        self.assertRaises(IndexError, lambda: setattr(p, 'focus_position', -1))
        self.assertRaises(IndexError, lambda: setattr(p, 'focus_position', 2))
        # old methods:
        p.set_focus(0)
        self.assertRaises(IndexError, lambda: p.set_focus(-1))
        self.assertRaises(IndexError, lambda: p.set_focus(2))
        p.set_focus(t2)
        self.assertEqual(p.focus_position, 1)
        self.assertRaises(ValueError, lambda: p.set_focus('nonexistant'))
        self.assertEqual(p.widget_list, [t1, t2])
        self.assertEqual(p.item_types, [('weight', 1), ('weight', 1)])
        p.widget_list = [t2, t1]
        self.assertEqual(p.widget_list, [t2, t1])
        self.assertEqual(p.contents, [(t2, ('weight', 1)), (t1, ('weight', 1))])
        self.assertEqual(p.focus_position, 1) # focus unchanged
        p.item_types = [('flow', None), ('weight', 2)]
        self.assertEqual(p.item_types, [('flow', None), ('weight', 2)])
        self.assertEqual(p.contents, [(t2, ('pack', None)), (t1, ('weight', 2))])
        self.assertEqual(p.focus_position, 1) # focus unchanged
        p.widget_list = [t1]
        self.assertEqual(len(p.contents), 1)
        self.assertEqual(p.focus_position, 0)
        p.widget_list.extend([t2, t1])
        self.assertEqual(len(p.contents), 3)
        self.assertEqual(p.item_types, [
            ('flow', None), ('weight', 1), ('weight', 1)])
        p.item_types[:] = [('weight', 2)]
        self.assertEqual(len(p.contents), 1)