Mock() 函数在 django2 中给出 TypeError

我正在跟进本教程 https://www.obeythetestinggoat.com/book/chapter_purist_unit_tests.html.

当我跑步时test_views.py根据作者的说法，我有一个不应该出现的错误：TypeError: quote_from_bytes() expected bytes.

My views and my test_views与书本相同，但我使用 django 2.0.6 而不是 django 1.11，所以我的url.py改变，所以也许这就是问题所在。

Edit:

再一看，问题似乎出在mock()功能。

当我使用patch('lists.views.List') the Print(list_)在我看来给出<MagicMock name='List()' id='79765800'>代替List object (1)

/edit

My lists/urls.py:

urlpatterns = [
    path('new', views.new_list, name='new_list'),
    path('<slug:list_id>/',
        views.view_list, name='view_list'),
    path('users/<email>/',         # I'm not sure about this one but it works in other tests
        views.my_lists, name='my_lists'),
]
#instead of:
#urlpatterns = [
#    url(r'^new$', views.new_list, name='new_list'),
#    url(r'^(\d+)/$', views.view_list, name='view_list'),
#    url(r'^users/(.+)/$', views.my_lists, name='my_lists'),
#]

My lists/views.py:

[...]
def new_list(request):
    form = ItemForm(data=request.POST)
    if form.is_valid():
        list_ = List()
        list_.owner = request.user
        list_.save()
        form.save(for_list=list_)
        Print(list_)
        return redirect(list_)
    else:
        return render(request, 'home.html', {"form": form})

My lists/tests/test_views.py:

@patch('lists.views.List')
@patch('lists.views.ItemForm')
def test_list_owner_is_saved_if_user_is_authenticated(self, 
    mockItemFormClass, mockListClass
):
    user = User.objects.create(email='[email protected] /cdn-cgi/l/email-protection')
    self.client.force_login(user)
    self.client.post('/lists/new', data={'text': 'new item'})
    mock_list = mockListClass.return_value
    self.assertEqual(mock_list.owner, user)

我的完整回溯：

类型错误：quote_from_bytes() 预期字节

可以是什么？

谢谢

最后我在网上找到了解决方案。

Django 2 不再支持字节串 https://docs.djangoproject.com/en/2.0/releases/2.0/#removed-support-for-bytestrings-in-some-places在某些地方，因此当视图重定向模拟类列表时，它会作为模拟对象并且iri_to_uridjango 函数抛出错误。在 Django 1.11 中iri_to_uri将 iri 强​​制为字节return quote(force_bytes(iri), safe="/#%[]=:;$&()+,!?*@'~")现在是return quote(iri, safe="/#%[]=:;$&()+,!?*@'~")。所以解决办法是return redirect(str(list_.get_absolute_url()))代替return redirect(list_) in the lists.views.py

def new_list(request):
    form = ItemForm(data=request.POST)
    if form.is_valid():
        list_ = List()
        list_.owner = request.user
        list_.save()
        form.save(for_list=list_)
        #return redirect(list_)
        return redirect(str(list_.get_absolute_url()))
    else:
        return render(request, 'home.html', {"form": form})

我希望这对其他人有帮助