我从Django测试中得到一个奇怪的错误，当我测试Django或我单元测试我的故事应用程序时，我收到此错误。它抱怨名为“content”的多个块标签，但我重命名了所有标签，因此应该有名称内容为零的块标签。测试从来没有打到我的应用程序代码，并且当我运行django的测试套件时也失败了。
应用程序运行正常，但我正在尝试编写单元测试，这实际上是在阻碍。
这是来自story / tests.py的测试：
class StoryViewsTests(TestCase):
def test_root_url_shows_home_page_content(self):
response = self.client.get(reverse('index'))
...
这是来自story / views.py的视图：
class FrontpageView(DetailView):
template_name = "welcome_content.html"
def get_object(self):
return get_object_or_404(Article, slug="front-page")
def get_context_data(self, **kwargs):
context = super(FrontpageView, self).get_context_data(**kwargs)
context['slug'] = "front-page"
queryset = UserProfile.objects.filter(user_type="Reporter")
context['reporter_list'] = queryset
return context
这是来自urls.py的网址：
urlpatterns = patterns('',
url(r'^$', FrontpageView.as_view(), name='index'),
...
这是模板：
{% extends "welcome.html" %}
{% block frontpagecontent %}
<div>
{{ object.text|safe}}
<div class="span12">
<a href="/accounts/register/">
<div class="well">
<h3>Register for the Nebraska News Service today.</h3>
</div> <!-- well -->
</a>
</div>
</div>
<div class="row-fluid">
<div class="span8">
<div class="well" align="center">
<img src="{{STATIC_URL}}{{ object.docfile }}" />
</div> <!-- well -->
</div> <!-- span8 -->
<div class="span4">
<div class="well">
<h3>NNS Staff:</h3>
{% for r in reporter_list %}
<p>{{ r.user.get_full_name }}</p>
{% endfor %}
</div> <!-- well -->
</div> <!-- span4 -->
</div>
{% endblock %}
这是追踪：
ERROR: test_root_url_shows_home_page_content (story.tests.StoryViewsTests)
----------------------------------------------------------------------
Traceback (most recent call last):
File "/vagrant/webapps/nns/settings/../apps/story/tests.py", line 11, in test_root_url_shows_home_page_content
response = self.client.get(reverse('about'))
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/test/client.py", line 473, in get
response = super(Client, self).get(path, data=data, **extra)
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/test/client.py", line 280, in get
return self.request(**r)
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/test/client.py", line 444, in request
six.reraise(*exc_info)
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 152, in get_response
response = callback(request, **param_dict)
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/utils/decorators.py", line 99, in _wrapped_view
response = view_func(request, *args, **kwargs)
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/views/defaults.py", line 23, in page_not_found
template = loader.get_template(template_name)
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/template/loader.py", line 138, in get_template
template, origin = find_template(template_name)
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/template/loader.py", line 127, in find_template
source, display_name = loader(name, dirs)
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/template/loader.py", line 43, in __call__
return self.load_template(template_name, template_dirs)
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/template/loader.py", line 49, in load_template
template = get_template_from_string(source, origin, template_name)
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/template/loader.py", line 149, in get_template_from_string
return Template(source, origin, name)
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/template/base.py", line 125, in __init__
self.nodelist = compile_string(template_string, origin)
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/template/base.py", line 153, in compile_string
return parser.parse()
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/template/base.py", line 278, in parse
compiled_result = compile_func(self, token)
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/template/loader_tags.py", line 215, in do_extends
nodelist = parser.parse()
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/template/base.py", line 278, in parse
compiled_result = compile_func(self, token)
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/template/loader_tags.py", line 190, in do_block
nodelist = parser.parse(('endblock',))
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/template/base.py", line 278, in parse
compiled_result = compile_func(self, token)
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/template/loader_tags.py", line 186, in do_block
raise TemplateSyntaxError("'%s' tag with name '%s' appears more than once" % (bits[0], block_name))
TemplateSyntaxError: 'block' tag with name 'content' appears more than once
答案 0 :(得分：0)
我几乎删除了这个，但在最后一刻决定提供调试技术。希望它可以帮助某人。
这个错误很糟糕。这是我的404.html页面，其中包含多个内容实例。但追踪从未真正表明过。
我终于在命令行中使用了grep。
grep content templates/*
有很多内容会显示内容，但将搜索范围仅限于模板有助于使列表易于管理。仅供参考，我在应用程序之外有一个单独的模板目录。您可能必须在不同的位置进行搜索，但您也可以通过cd到模板目录并在每个位置运行grep以查找有问题的代码位。 mmmm ...... grep。
感谢this answer by maazza获取灵感。
答案 1 :(得分：0)
在重新调试Django堆栈跟踪：诀窍是发现在某些时候堆栈跟踪从你的代码跨越到Django的bailiwick。除非您发现了Django错误，否则您应该能够将搜索限制为自己的代码。 （但是如果你对你的代码的预期感到困惑，那么查看Django文档或Django源代码当然可能会有所帮助。）
您发布的堆栈跟踪开头如下：
File "/vagrant/webapps/nns/settings/../apps/story/tests.py",
line 11, in test_root_url_shows_home_page_content
response = self.client.get(reverse('about'))
File "/home/vagrant/django5/local/lib/python2.7/site-packages/django/test/client.py",
line 473, in get
response = super(Client, self).get(path, data=data, **extra)
... more Django stuff ...
第二项已经跨越Django领域，所以错误可能在第一行：
response = self.client.get(reverse('about'))
也许'about'网址不存在？