如果缺少模板,则更好的错误消息

Question

如果在django模板的渲染内部缺少模板,我会得到如下的异常.

经过很长时间的搜索,我找到了伪造的部分:

 {% include form.template_name %}

form.template_name在我的上下文中为空.

如何在不搜索小时数的情况下找到相关的模板名称？

我缺少像普通python代码一样的回溯."普通"python回溯向我展示了包含bug的文件和行.

/home/foo_fm_d/bin/python /usr/local/pycharm-community-4.5/helpers/pycharm/utrunner.py /home/foo_fm_d/src/foo-time/foo_time/tests/unit/views/user/test_preview_of_next_days.py::EditTestCase::test_preview_of_next_days true
Testing started at 09:26 ...

Error
Traceback (most recent call last):
  File "/home/foo_fm_d/src/foo-time/foo_time/tests/unit/views/user/test_preview_of_next_days.py", line 11, in test_preview_of_next_days
    self.admin_client.get(url)
  File "/home/foo_fm_d/src/djangotools/djangotools/utils/testutils.py", line 275, in get
    response = super(Client, self).get(path, data, **extra)
  File "/home/foo_fm_d/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/foo_fm_d/local/lib/python2.7/site-packages/django/test/client.py", line 280, in get
    return self.request(**r)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/test/client.py", line 444, in request
    six.reraise(*exc_info)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/core/handlers/base.py", line 137, in get_response
    response = response.render()
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/response.py", line 105, in render
    self.content = self.rendered_content
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/response.py", line 82, in rendered_content
    content = template.render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/base.py", line 140, in render
    return self._render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/base.py", line 134, in _render
    return self.nodelist.render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/base.py", line 840, in render
    bit = self.render_node(node, context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/debug.py", line 78, in render_node
    return node.render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/loader_tags.py", line 123, in render
    return compiled_parent._render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/base.py", line 134, in _render
    return self.nodelist.render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/base.py", line 840, in render
    bit = self.render_node(node, context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/debug.py", line 78, in render_node
    return node.render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/loader_tags.py", line 123, in render
    return compiled_parent._render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/base.py", line 134, in _render
    return self.nodelist.render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/base.py", line 840, in render
    bit = self.render_node(node, context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/debug.py", line 78, in render_node
    return node.render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/loader_tags.py", line 62, in render
    result = block.nodelist.render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/base.py", line 840, in render
    bit = self.render_node(node, context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/debug.py", line 78, in render_node
    return node.render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/debug.py", line 88, in render
    output = self.filter_expression.resolve(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/base.py", line 585, in resolve
    obj = self.var.resolve(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/base.py", line 735, in resolve
    value = self._resolve_lookup(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/base.py", line 789, in _resolve_lookup
    current = current()
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/loader_tags.py", line 72, in super
    return mark_safe(self.render(self.context))
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/loader_tags.py", line 62, in render
    result = block.nodelist.render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/base.py", line 840, in render
    bit = self.render_node(node, context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/debug.py", line 78, in render_node
    return node.render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/loader_tags.py", line 62, in render
    result = block.nodelist.render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/base.py", line 840, in render
    bit = self.render_node(node, context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/debug.py", line 78, in render_node
    return node.render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/loader_tags.py", line 62, in render
    result = block.nodelist.render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/base.py", line 840, in render
    bit = self.render_node(node, context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/debug.py", line 78, in render_node
    return node.render(context)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/loader_tags.py", line 166, in render
    template = get_template(template_name)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/loader.py", line 138, in get_template
    template, origin = find_template(template_name)
  File "/home/foo_fm_d/local/lib/python2.7/site-packages/django/template/loader.py", line 131, in find_template
    raise TemplateDoesNotExist(name)
TemplateDoesNotExist


Process finished with exit code 0

更新

我的个人背景:到目前为止,我避免使用django模板,因为有时异常会被忽略,并且像这样的追溯使得调试过程感觉就像穿着由混凝土制成的厚重鞋子.

我试图摆脱我的偏见.或者至少找到一种如何从模板中获取更好的错误消息的方法.

更新II

我通过pyCharm中的unittest看到了回溯.我没有看到视图的结果."webbrowser"客户端调用视图.我设置TEMPLATE_DEBUG = True,但结果是一样的.

Answer 1

老实说，我一直使用其他发帖者建议的实时服务器机制。但是，由于您正在寻找可能在 Jenkins 中工作的解决方案，并且您的堆栈显示您正在使用 debug.py，因此我查看了那里的调试数据。

我注意到模板引擎应该在异常的 django_template_source 属性中添加模板失败部分的源代码片段。

这在你的例外中存在并且有帮助吗？如果是这样，您可以在 UT 失败之前捕获异常并打印它。