Question

每当我尝试构建基于 self.live_server_url 的字符串时，我都会收到python TypeError消息。例如，我尝试了以下字符串结构（下面的表单1和2），但我遇到了相同的TypeError。我想要的字符串是附加了"/lists"的Live Server URL。注意：实际测试确实成功创建了一个服务器，我可以手动访问服务器，更具体地说，我可以手动访问我尝试以编程方式构建的确切URL（例如'http://localhost:8081/lists＆＃39 ;）

这些字符串结构会出现

TypeError。

# FORM 1
lists_live_server_url = '%s%s' % (self.live_server_url, '/lists')

# FORM 2
lists_live_server_url = '{0}{1}'.format(self.live_server_url, '/lists')

self.browser.get(lists_live_server_url)

这个表单没有python错误（没有附加到字符串中），虽然我的测试失败了（正如我所料，因为它不能访问/lists）。

self.browser.get(self.live_server_url)

以下是我遇到的python错误。

/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/bin/python3.4 /Applications/PyCharm.app/Contents/helpers/pycharm/django_test_manage.py test functional_tests.lists_tests.LiveNewVisitorTest.test_can_start_a_list_and_retrieve_it_later /Users/myusername/PycharmProjects/mysite_proj
    Testing started at 11:55 AM ...
    Creating test database for alias 'default'...
    Traceback (most recent call last):
      File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/wsgiref/handlers.py", line 137, in run
        self.result = application(self.environ, self.start_response)
      File "/usr/local/lib/python3.4/site-packages/django/test/testcases.py", line 1104, in __call__
        return super(FSFilesHandler, self).__call__(environ, start_response)
      File "/usr/local/lib/python3.4/site-packages/django/core/handlers/wsgi.py", line 189, in __call__
        response = self.get_response(request)
      File "/usr/local/lib/python3.4/site-packages/django/test/testcases.py", line 1087, in get_response
        return self.serve(request)
      File "/usr/local/lib/python3.4/site-packages/django/test/testcases.py", line 1099, in serve
        return serve(request, final_rel_path, document_root=self.get_base_dir())
      File "/usr/local/lib/python3.4/site-packages/django/views/static.py", line 54, in serve
        fullpath = os.path.join(document_root, newpath)
      File "/usr/local/Cellar/python3/3.4.2_1/Frameworks/Python.framework/Versions/3.4/lib/python3.4/posixpath.py", line 82, in join
        path += b
    TypeError: unsupported operand type(s) for +=: 'NoneType' and 'str'

我是否在不知不觉中尝试修改导致这些live_server_url的{{1}}？我怎么能以编程方式构建一个TypeError？

的字符串

这是我正在尝试的测试...

live_server_url + "/lists"

Answer 1

See this discussion on Reddit具有相同的错误Traceback。

基本上，这不是Selenium测试中的任何问题，而是项目的静态文件配置。

从您的问题来看，我认为Traceback中的关键行是：

File "/usr/local/lib/python3.4/site-packages/django/views/static.py", line 54, in serve
    fullpath = os.path.join(document_root, newpath)

此行表示在os.path.join内尝试django.views.static失败。

在项目的STATIC_ROOT文件中设置settings.py，您应该做得很好。

Answer 2

使用StaticLiveServerTestCase可能会有帮助

将django.test.LiveServerTestCase的live_server_url与另一个字符串连接时的TypeError

2 个答案: