django - 在看《Python web开发 测试驱动方法》assertRegex怎么报错

Question

在看Python web开发 测试驱动方法 assertRegex怎么报错

$ python manage.py test functional_tests/
Creating test database for alias 'default'...

F.

FAIL: test_can_start_a_list_retrieve_it_later (functional_tests.test.NewVisitorTest)

Traceback (most recent call last):
File "/home/shj/projectTTD/TTD_01/superlists/functional_tests/test.py", line 69, in test_can_start_a_list_retrieve_it_later

self.assertRegex(edith_list_url, '/lists/.+')

AssertionError: Regex didn't match: '/lists/.+' not found in 'http://localhost:8082/'

环境：
python 3.4.6
django 1.10.5
selenium (3.0.2)

导入的包
from django.contrib.staticfiles.testing import StaticLiveServerTestCase

打开网页，url也是对的
urlpatterns = [

url(r'^new$', new_list, name='new_list'),
url(r'^(\d+)/$', view_list, name='view_list'),
url(r'^(\d+)/add_item$', add_item, name='add_item'),

]

Answer 1

在http://localhost:8082/里面确实没有'/lists/.+'呀。。。

Answer 2

确实是没跳转
跳转代码：
inputbox.send_keys('Buy peacock feathers')
inputbox.send_keys(Keys.ENTER)
time.sleep(4) #这是后加的，加完后 ENTER才生效，才能跳转到/lists/。。。
edith_list_url = self.browser.current_url
self.assertRegex(edith_list_url, '/lists/.+')

为什么要加上time.sleep(4) 等待几秒
才能输入ENTER，跳转页面？