Django unittest assertRedirects工作解释

时间:2019-10-11 14:08:49

标签: python django unit-testing

我需要解释工作assertRedirects函数。我的看法:

def login_view(request):
    if request.user.is_authenticated:
        return redirect('account:profile')
    else:
        form = UserLoginForm(request.POST or None)
        if request.method == 'POST':
            if form.is_valid():
                cd = form.cleaned_data
                user = authenticate(username=cd['username'],
                                    password=cd['password'])
                if user is None:
                    messages.error(request,
                                   'something.')
                else:
                    if user.is_active:
                        login(request, user)
                        next_url = request.POST.get('next',
                                                    reverse('account:profile'))
                        return HttpResponseRedirect(next_url)
                    else:
                        messages.error(request,
                                       'something')
            else:
                messages.error(request, 'something.')

        context = {'form': form,
                   'next': request.GET.get('next')}
        return render(request, 'account/login.html', context)

现在我写了2个测试。

def test_login_view_valid_data_username(self):
    path = reverse('account:login')
    response = self.client.post(path=path,
                                data={'username': 'test123',
                                      'password': 'everything123'})
    # is logged
    self.assertTrue(self.user.is_authenticated)
    # is redirect and good redirected
    self.assertRedirects(response, reverse('account:profile'))

我的观点通过了这项测试。我的第二项测试:

def test_redirect_url_if_not_login(self):
    path = '{}?next={}'.format(reverse('account:login'),
                               reverse('orders:create'))
    response = self.client.post(path=path,
                                data={'username': 'test123',
                                      'password': 'everything123',
                                      'next': reverse('orders:create')})
    print('RESPONSE CODE', response.status_code)
    print('RESPONSE URL', response.url)
    self.assertRedirects(response, reverse('orders:create'))

在这里我有问题。我收到错误消息:
AssertionError:302!= 200:无法检索重定向页面'/ orders / create /':响应代码为302(预期为200)
但是我的响应代码和响应url可以正确转换路径。我有点困惑,因为这不是第一种情况。有正式的解释吗?

编辑:

@login_required
def create_view(request):
    cart = Cart(request)

    if len(cart) == 0 or not cart:
        return redirect('shop:overview')

    if request.method == 'POST':
        form = OrderCreateForm(request.POST)
        if form.is_valid():
            order = form.save(commit=False)
            order.user = request.user
            order.save()
            for item in cart:
                OrderItem.objects.create(order=order,
                                         product=item['product'],
                                         price=item['price'],
                                         quantity=item['quantity'])
            cart.clear()
            return redirect('orders:payment', id=order.id)
    else:
        data = model_to_dict(request.user.shippingdetails)

        form = OrderCreateForm(data)

    return render(request, 'orders/create.html', {'cart': cart,
                                                  'form': form})

感谢您的回答
马格努斯

1 个答案:

答案 0 :(得分:0)

默认情况下,assertRedirects获取目标URL并期望其状态为200。

在您的情况下,您的视图将重定向到1.,然后重定向到/orders/create/。您可以设置/来阻止测试客户端获取fetch_redirect_response=False,也可以设置/orders/create/