def test_root(self):
a = Div()
b = Div().append_to(a)
c = Div().append_to(b)
self.assertEqual(c.root, a)
self.assertEqual(b.root, a)
self.assertEqual(a.root, a)
c = b.pop()
self.assertEqual(c.root, c)
self.assertEqual(b.root, a)
self.assertEqual(a.root, a)
b(c)
d = Div()
a.move_childs(d)
self.assertEqual(c.root, d)
self.assertEqual(b.root, d)
self.assertEqual(a.root, a)
c(a)
self.assertEqual(c.root, d)
self.assertEqual(b.root, d)
self.assertEqual(a.root, d)
c.empty()
self.assertEqual(a.root, a)
def test_move_childs(self):
childs = [A(), P(), 'test', 0]
d1 = Div()(childs)
d2 = Div()
d1.move_childs(d2)
self.assertFalse(d1.childs)
self.assertTrue(d2.childs)
self.assertEqual(childs[0].parent, d2)
